WO2006049156A1 - エポキシ樹脂組成物及び半導体装置 - Google Patents
エポキシ樹脂組成物及び半導体装置 Download PDFInfo
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- WO2006049156A1 WO2006049156A1 PCT/JP2005/020088 JP2005020088W WO2006049156A1 WO 2006049156 A1 WO2006049156 A1 WO 2006049156A1 JP 2005020088 W JP2005020088 W JP 2005020088W WO 2006049156 A1 WO2006049156 A1 WO 2006049156A1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/20—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the epoxy compounds used
- C08G59/32—Epoxy compounds containing three or more epoxy groups
- C08G59/3218—Carbocyclic compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/68—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the catalysts used
- C08G59/686—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the catalysts used containing nitrogen
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
- C08K5/3477—Six-membered rings
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
- C08L61/04—Condensation polymers of aldehydes or ketones with phenols only
- C08L61/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
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- H10W74/10—
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- H10W74/40—
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- H10W74/47—
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
- C08K5/3472—Five-membered rings
Definitions
- the present invention relates to an epoxy resin composition for semiconductor encapsulation, and a semiconductor device using the same.
- epoxy resin compositions excellent in heat resistance and moisture resistance, which are blended with epoxy resin, phenol resin, and inorganic fillers such as fused silica and crystalline silica, are used.
- epoxy resin compositions used for fixing is becoming increasingly severe! In particular, in the current situation where surface mounting of semiconductor devices has become common, moisture-absorbing semiconductor devices are exposed to high temperatures during solder reflow processing.
- solder that does not contain lead is being promoted. Since such lead-free solder has a higher melting point than conventional solder, the reflow temperature during surface mounting is Treatment at 260 ° C, which is about 20 ° C higher than before, is required. For this reason, the semiconductor device is exposed to a higher temperature than before, and peeling occurs at the interface between the semiconductor element and the lead frame and the cured epoxy resin yarn and the product, and the semiconductor device is cracked. Defects that greatly impair the reliability of semiconductor devices are likely to occur.
- Patent Document 1 JP-A-1 275618 (pages 1 to 5)
- Patent Document 2 JP-A-5-097965 (pages 2-6)
- Patent Document 3 JP-A-5-097967 (pages 2-7)
- Patent Document 4 JP-A-8-258077 (pages 2-9)
- Patent Document 5 JP-A-11 152393 (pages 2-5)
- Patent Document 6 JP-A-5-315472 (Pages 2-7)
- the present invention has been made paying attention to the problems as described above, and the first object thereof is to have high flame resistance without using a flame retardant, and solder resistance.
- the present invention provides an epoxy resin composition for semiconductor encapsulation that has excellent reflow properties and can be used for lead-free solder, and a semiconductor device in which a semiconductor element is encapsulated using the epoxy resin composition.
- the second object of the present invention is an epoxy resin composition for semiconductor encapsulation excellent in productivity, and the use thereof.
- a semiconductor device in which a semiconductor element is sealed is provided.
- the third object of the present invention is an epoxy resin composition for semiconductor encapsulation excellent in fluidity, and using the same.
- An object of the present invention is to provide a highly reliable semiconductor device in which a semiconductor element is sealed.
- the second aspect can achieve the second objective in addition to the first objective.
- the third aspect can also achieve the third objective.
- the invention of the first aspect according to the present invention provides the following epoxy resin composition for semiconductor encapsulation and a semiconductor device.
- R represents hydrogen or an alkyl group having 1 to 4 carbon atoms, and may be the same or different from each other.
- A is an integer of 0 to 4
- b is 0 to 4 is an integer
- c is an integer from 0 to 3
- d is an integer from 0 to 4.
- n is an average value, 0 or a positive number of 10 or less.
- R represents hydrogen or an alkyl group having 1 to 4 carbon atoms, and may be the same or different from each other.
- A is an integer of 0 to 4
- b is 0 to 4 is an integer
- c is an integer from 0 to 3
- d is an integer from 0 to 4.
- n is an average value, 0 or a positive number of 10 or less.
- a semiconductor device comprising a semiconductor element sealed using the epoxy resin composition for semiconductor sealing according to the first aspect.
- the invention of the second aspect according to the present invention provides the following epoxy resin composition for semiconductor encapsulation and a semiconductor device.
- R represents hydrogen or an alkyl group having 1 to 4 carbon atoms, and may be the same or different from each other.
- A is an integer of 0 to 4
- b is 0 to 4 is an integer
- c is an integer from 0 to 3
- d is an integer from 0 to 4.
- n is an average value, 0 or a positive number of 10 or less.
- R represents hydrogen or an alkyl group having 1 to 4 carbon atoms, and may be the same or different from each other.
- A is an integer of 0 to 4
- b is 0 to 4 is an integer
- c is an integer from 0 to 3
- d is an integer from 0 to 4.
- n is an average value, 0 or a positive number of 10 or less.
- (A) The epoxy for semiconductor encapsulation according to the second aspect, wherein the soft resin point of the epoxy resin represented by the general formula (1) is 35 ° C. or higher and 60 ° C. or lower. Wool yarn and adult product.
- R is an organic group having 1 to 40 carbon atoms, at least one of which has a carboxyl group, and the remaining group is a hydrogen, phenyl group, or methyl group.
- the group is selected and may be the same or different from each other, n is an average value and is a positive number from 1 to 50.
- the dropping point of the (G) acid-polyethylene is 100 ° C or higher and 130 ° C or lower.
- the epoxy resin composition for semiconductor encapsulation according to the second aspect comprising an organopolysiloxane having a carboxyl group reacted with an epoxy resin and a curing accelerator.
- R is a hydrogen atom, a functional group selected from a group force consisting of a mercapto group, an amino group, and a hydroxyl group, or any one of these functional groups) Indicates an added hydrocarbon chain having 1 to 5 carbon atoms.
- a semiconductor device wherein a semiconductor element is encapsulated by using the epoxy encapsulating resin composition for semiconductor encapsulation of the second aspect.
- the invention of the third aspect according to the present invention provides the following epoxy resin composition for semiconductor encapsulation and a semiconductor device.
- (B) phenol resin represented by general formula (2)
- (H) general formula (5)
- An epoxy resin composition comprising as a required curing accelerator, (I) a silane coupling agent, and (D) an inorganic filler, the epoxy resin composition
- the (H) -curing accelerator represented by the general formula (5) is 0.05% by weight or more and 0.5% by weight or less
- the (D) inorganic filler is 84% by weight or more.
- An epoxy resin composition for semiconductor encapsulation characterized by being contained in a proportion of 92% by weight or less.
- R represents hydrogen or an alkyl group having 1 to 4 carbon atoms, and may be the same or different from each other.
- A is an integer of 0 to 4
- b Is an integer from 0 to 4
- c is an integer from 0 to 3
- d is an integer from 0 to 4.
- n is an average value and is a positive number of 0 or 10 or less.
- R represents hydrogen or an alkyl group having 1 to 4 carbon atoms, and may be the same or different from each other.
- A is an integer of 0 to 4
- b Is an integer from 0 to 4
- c is an integer from 0 to 3
- d is an integer from 0 to 4.
- n is an average value and is a positive number of 0 or 10 or less.
- m is a number 0 ⁇ m ⁇ 2.
- epoxy resin for semiconductor encapsulation according to the third aspect, wherein the epoxy resin represented by the general formula (1) has a softening point of 35 ° C. or more and 60 ° C. or less. Oil thread and adult product.
- a semiconductor element using the epoxy resin composition for semiconductor encapsulation according to the third aspect A semiconductor device characterized by sealing a child.
- the flame retardancy grade without using a halogen-based flame retardant, an antimony compound, or other flame retardancy is UL-94 V-0.
- it has excellent adhesion to various substrates such as semiconductor elements and lead frames, especially adhesion to prebrating frames such as Ni, Ni—Pd, and Ni-Pd-Au.
- the semiconductor device has an epoxy resin composition with excellent solder reflow resistance that does not cause separation from the substrate and cracks in the semiconductor device, and a semiconductor element is sealed using this composition. A semiconductor device can be obtained.
- the flame retardant grade without using halogen-based flame retardant, antimony compound, and other flame retardant is UL-94 V-0.
- Epoxy resin thread for semiconductor sealing that can solve problems such as moldability, molded product appearance, mold contamination, and the like, and a semiconductor device that uses this to seal semiconductor elements Obtainable.
- the flame retardant grade without using a halogen-based flame retardant, an antimony compound, and other flame retardant is V-0 of UL-94.
- it has high solder reflow resistance that can be applied to lead-free solder without impairing fluidity. Epoxy resin thread for semiconductor encapsulation, and a semiconductor element sealed using this. Therefore, a semiconductor device can be obtained with high productivity.
- the epoxy resin composition for semiconductor encapsulation provided by the first, second and third aspects of the present invention is an industrial resin-encapsulated semiconductor device, particularly a surface using lead-free solder. It can be used suitably for the manufacture of a resin-sealed semiconductor device for mounting.
- the first aspect of the present invention comprises (A) a phenol aralkyl epoxy resin having a phenol skeleton represented by general formula (1), and (B) a bi-phenylene skeleton represented by general formula (2).
- a phenol alcohol having a phenol aralkyl type (C) a curing accelerator, (D) an inorganic filler, and (E) a triazole-based compound as essential components, and (D) an inorganic filler as a total epoxy resin composition.
- the resin skeleton is hydrophobic, the cured product exhibits low hygroscopicity, and the distance between cross-linking points of the cured product is increased. Therefore, it has a feature that the elastic modulus at the solder reflow temperature is low. For this reason, the generated stress is low and the adhesiveness is excellent, so that the solder reflow resistance is good and preferable. Furthermore, since the aromatic ring content in the rosin skeleton is high, the flame retardancy of the rosin itself is also high.
- R in the general formula (1) represents hydrogen or an alkyl group having 1 to 4 carbon atoms, and may be the same or different from each other.
- a is an integer from 0 to 4
- b is an integer from 0 to 4
- c is an integer from 0 to 3
- d is an integer from 0 to 4
- n is a force whose average is a positive number of 0 or 10 or less.
- the resin of formula (la) is preferred. If n exceeds the above upper limit, the viscosity of the resin increases and the fluidity of the resin composition at the time of molding is inferior, so it is impossible to increase the filling of the inorganic filler to further reduce moisture absorption. This is preferable.
- R represents hydrogen or an alkyl group having 1 to 4 carbon atoms, and may be the same or different from each other.
- A is an integer of 0 to 4
- b is an integer of 0 to 4
- C is 0
- d is an integer of 0-4.
- n is an average value and is a positive number of 0 or 10 or less.
- n is an average value and is a positive number of 0 or 10 or less.
- the epoxy resin can be used in combination with other epoxy resins as long as the characteristics of the epoxy resin represented by the general formula (1) are not impaired.
- the epoxy resin used in combination includes monomers, oligomers, and polymers in general having two or more epoxy groups in one molecule, and its molecular weight and molecular structure are not particularly limited.
- phenol novolac type epoxy resin Orthocresol novolak type epoxy resin, naphthol nopolac type epoxy resin, phenol aralkyl type epoxy resin having bi-phenylene skeleton, naphthol aralkyl type epoxy resin (phenol skeleton, biphenyl skeleton, etc.)
- Dicyclopentagen-modified epoxy resin stilbene epoxy resin, triphenol methane epoxy resin, alkyl-modified triphenol methane epoxy resin, triazine nucleus-containing epoxy resin, etc.
- stilbene epoxy resin triphenol methane epoxy resin
- alkyl-modified triphenol methane epoxy resin triazine nucleus-containing epoxy resin
- the epoxy resin represented by the general formula (1) is 70 to L00% by weight based on the total epoxy resin. If the content of the epoxy resin represented by the general formula (1) is less than the lower limit value, the moisture absorption rate may increase and the solder reflow resistance may decrease.
- the phenol resin represented by the general formula (2) used in the present invention has a hydrophobic and rigid biphenol skeleton between phenolic hydroxyl groups, and an epoxy resin composition using the same
- the cured product has low hygroscopicity and has a feature of low elastic modulus at high temperatures exceeding Tg due to the long distance between cross-linking points of the cured product. Therefore, solder reflow resistance is good and preferable.
- these phenolic resins have a high aromatic ring content in the resinous skeleton. Therefore, the resin itself has high flame retardancy, low crosslink density, and high heat resistance. It has features.
- R in the general formula (2) represents hydrogen or an alkyl group having 1 to 4 carbon atoms, and may be the same or different from each other.
- a is an integer from 0 to 4
- b is an integer from 0 to 4
- c is an integer from 0 to 3
- d is an integer from 0 to 4
- n is a force whose average is a positive number of 0 or 10 or less.
- the resin of formula (2a) is preferred. If n exceeds the above upper limit, the viscosity of the resin increases, the fluidity of the resin composition at the time of molding is inferior, and it is impossible to increase the filling of the inorganic filler to further reduce moisture absorption. This is not preferable.
- R represents hydrogen or an alkyl group having 1 to 4 carbon atoms, and may be the same or different from each other.
- A is an integer of 0 to 4
- b is 0 to 4 is an integer
- c is an integer from 0 to 3
- d is an integer from 0 to 4.
- n is an average value, 0 or a positive number of 10 or less.
- n is an average value and is a positive number of 0 or 10 or less.
- phenol resin used in combination refers to monomers, oligomers and polymers in general having two or more phenolic hydroxyl groups in one molecule, and its molecular weight and molecular structure are not particularly limited.
- phenol novolac resin, creso Examples include one-novolak resin, naphthol aralkyl resin, triphenol methane resin, terpene-modified phenol resin, dicyclopentagen-modified phenol resin, phenol aralkyl resin having a phenol skeleton, etc. These can be used alone or in combination of two or more.
- the phenolic resin represented by the general formula (2) is preferably 70 to LOO% by weight. If the content of the phenolic resin represented by the general formula (2) is below the lower limit, there is a possibility that the moisture absorption rate increases, the solder reflow resistance decreases, and the flame resistance decreases.
- the equivalent ratio (aZb) of the number of epoxy groups (a) of all epoxy resins to the number of phenolic hydroxyl groups (b) of all phenol resins used in the present invention is preferably 0.5 to 2. In particular, 0.7 to 1.5 is more preferable. If it is out of the above range, the moisture resistance and curability may be lowered.
- the epoxy resin (A) represented by the general formula (1) and the phenol resin B represented by the general formula (2) used in the present invention have a dispersibility by being previously melt-mixed. It can be improved.
- the phenol represented by the general formula (2) as described above.
- the soft blend point of the molten mixture can be made higher than the soft blend point of the epoxy resin (A) represented by the general formula (1). It is possible to improve the handleability.
- those generally used for sealing materials can be used as long as they promote the crosslinking reaction between an epoxy group and a phenolic hydroxyl group.
- diazabicycloalkene such as 1,8 diazabicyclo (5, 4, 0) undecene 7 and derivatives thereof
- organic phosphates such as triphenylphosphine and methyldiphenylphosphine
- imidazole such as 2-methylimidazole, etc.
- the type of inorganic filler used in the present invention is not particularly limited, and those generally used for sealing materials can be used.
- Examples include fused silica, crystalline silica, secondary agglomerated silica, alumina, titanium white, aluminum hydroxide, talc, clay, glass fiber, etc., and these may be used alone or in combination of two or more. May be.
- fused silica is preferred.
- Fused silica can be used in either crushed or spherical shape. In order to increase the force content and suppress the increase in the melt viscosity of the epoxy resin composition, it is more preferable to mainly use spherical silica.
- the total inorganic filler content is required to be 84% by weight or more and 92% by weight or less, preferably 87% by weight or more in the total epoxy resin composition in terms of the balance between moldability and reliability. 92% by weight or less. If it is less than the above lower limit, low hygroscopicity and low thermal expansibility cannot be obtained, and solder reflow resistance may be insufficient. Further, if the above upper limit is exceeded, the fluidity is lowered, and there is a risk of incomplete filling at the time of molding or inconvenience such as deformation of the gold wire in the semiconductor device due to high viscosity, which is not preferable.
- the triazole compound used in the present invention is a compound having a five-membered ring structure containing a nitrogen atom. Triazole compounds improve the affinity between the resin composition and the surface of the pre-brating frame, and have the effect of suppressing delamination at the interface. Therefore, a semiconductor formed by sealing a semiconductor element with a cured product of the resin composition. It plays a role in improving the moisture resistance reliability and solder reflow resistance of the equipment. Therefore, the reliability of the semiconductor device is improved.
- the triazole compound used in the present invention is preferably a compound represented by the general formula (3). Since the triazole-based compound does not contain any mercapto group and there is no reactivity between N! / And the metal, the reliability of the semiconductor device may not be improved.
- R is a hydrogen atom, a functional group selected from a group force consisting of a mercapto group, an amino group, and a hydroxyl group, or any functional group thereof
- R represents a hydrocarbon chain having 1 to 5 carbon atoms to which is added.
- R in the general formula (3) is a hydrocarbon chain having 1 to 5 carbon atoms
- the R has a functional group selected from the group consisting of a mercapto group, an amino group, and a hydroxyl group. It ’s okay.
- the addition amount of the triazole-based compound is not particularly limited, but is preferably 0.01 to 2% by weight with respect to the entire resin composition. Below the above lower limit, the effect of improving the adhesion to the frame may be reduced. In addition, if the upper limit is exceeded, the fluidity of the composition decreases and the solder reflow resistance may decrease. There is a potential.
- the epoxy resin composition of the present invention comprises, in addition to the components (A) to (E), if necessary, an inorganic ion exchanger such as acid bismuth hydrate, ⁇ -glycidoxypropyl Coupling agents such as trimethoxysilane, colorants such as carbon black and bengara, low stress components such as silicone oil and silicone rubber, mold release agents such as natural wax, synthetic wax, higher fatty acids and their metal salts or paraffin, Various additives such as anti-oxidation agents may be appropriately blended. Further, if necessary, inorganic fillers may be used as coupling agents or epoxy resins, or pretreated with phenol resin. Examples of the processing method include a method of removing the solvent after mixing the inorganic filler and resin with a solvent, a method of adding the resin directly to the inorganic filler, and processing using a mixer, etc. There is.
- an inorganic ion exchanger such as acid bismuth hydrate, ⁇ -glycidoxypropyl Coupling agents such
- the epoxy resin composition according to the first aspect of the present invention comprises components ( ⁇ ) to ( ⁇ ), other additives, etc., mixed at room temperature using a mixer, and then kneaded in a roll, an extruder or the like. It is obtained by melting and kneading with a machine, cooling and pulverizing.
- a conventional molding method such as a transfer mold, a compression mold, or an injection mold is used. If it is cured with
- the epoxy resin composition for encapsulating a semiconductor obtained by the first aspect described above uses no flame retardant, a rogen flame retardant, an antimony compound, and other flame retardant imparting agents.
- the flame retardant grade is UL-94 V-0
- the semiconductor device obtained by using parenthesis is a hardened resin composition and lead frame, in particular, a copper lead frame with silver plating (silver metal lead). Frame, nickel plating lead frame, pre-bleeding frame with gold plating on nickel-palladium alloy, etc.) and excellent solder reflow resistance when mounted on semiconductors. Therefore, the epoxy resin composition can be suitably used for industrial production of a resin-encapsulated semiconductor device, particularly a resin-encapsulated semiconductor device for surface mounting.
- the second aspect of the present invention is a ( ⁇ )-a phenol having a phenol skeleton represented by the general formula (1).
- (D) Inorganic filler as an essential component and
- Inorganic filler is contained in the total epoxy resin composition in an amount of 84% to 92% by weight.
- Antimony compound and other flame retardant imparting agent, flame retardant grade UL-94 V-0, solder reflow resistance and excellent productivity A fat composition is provided.
- the epoxy resin composition of the second aspect preferably contains (E) a triazole compound.
- Epoxy resin (A) represented by general formula (1), phenol resin (B) represented by general formula (2), inorganic filler (D), and triazole used in the second aspect
- the same compound as used in the first aspect described above is used in the same manner, so that the description thereof is omitted.
- the organopolysiloxane having a carboxyl group in the second aspect is an organopolysiloxane having one or more carboxyl groups in one molecule, and needs to be used in combination with an acid-polyethylene.
- an organopolysiloxane having a carboxyl group is used alone, the releasability becomes insufficient and the continuous moldability is lowered.
- oxidized polyethylene is used alone, the releasability is insufficient, and in order to obtain sufficient releasability, it is necessary to increase the blending amount. In that case, solder heat resistance is reduced due to a decrease in adhesion. Also, the appearance of the molded product is bad.
- solder heat resistance means the heat resistance of the sealing resin required at the time of soldering, and the soldering includes not only solder reflow but also solder immersion.
- organopolysiloxane having a carboxyl group in combination with polyethylene oxide, it is possible to make the acid polyethylene compatible with each other, and the releasability is improved even if the amount of the acid polyethylene is small. And releasability, continuous molding is good and solder heat resistance is not reduced.
- the blending ratio of the above-mentioned two components to be used in combination is most effective in this range where 5 Zl to l Z5 is desired by weight.
- the organopolysiloxane having a carboxyl group is preferably an organopolysiloxane represented by the general formula (4).
- R in the general formula (4) at least one is a C1-C40 organic group having a carboxyl group, and the remaining R is a group selected from hydrogen, a phenyl group, or a methyl group. And may be the same or different. If the number of carbon atoms of the organic group having a carboxyl group exceeds the above upper limit, the compatibility with the resin is deteriorated and the appearance of the molded product may be deteriorated.
- n is an average value and is a positive number from 1 to 50. If the value of n exceeds the upper limit value, the viscosity of the organopolysiloxane itself may be increased and the fluidity may be deteriorated.
- the appearance of the molded product becomes particularly good without causing a decrease in fluidity. Furthermore, by continuously melting and reacting this organopolysiloxane with epoxy resin and a curing accelerator, the moldability after continuous molding hardly occurs and the continuous moldability becomes extremely good.
- the term “curing accelerator” as used herein is not limited as long as it accelerates the curing reaction between the carboxyl group and the epoxy group in the resin composition, and the epoxy group of the epoxy resin and the phenolic hydroxyl group of the phenol resin described later. The same curing accelerator that accelerates the curing reaction with can be used.
- a typical example of the organic group is a hydrocarbon group, but most of the structure is mainly occupied by the hydrocarbon structure, but it may contain hetero atoms other than carbon or hydrogen. It is a group. Heterogeneous atoms are, for example, in the middle of hydrocarbon groups such as carboxyl groups, hydroxyl groups, mercapto groups, amino groups, etc. It may exist as an intervening functional group.
- the carbon number of the organic group having a carboxyl group of the organopolysiloxane represented by the general formula (4) refers to the sum of the hydrocarbon group in the organic group and the carbon number of the carboxyl group.
- R is an organic group having 1 to 40 carbon atoms, at least one of which has a carboxyl group, and the remaining group is a hydrogen, phenyl group, or methyl group.
- the groups are selected and may be the same or different from each other, n is an average value and is a positive number from 1 to 50.
- the amount of the organopolysiloxane having a carboxyl group is preferably 0.01% by weight or more and 3% by weight or less in the total epoxy resin composition. If the above lower limit is not reached, the effect may be insufficient and the appearance of the molded product due to the release agent may not be suppressed. If the upper limit is exceeded, the organopolysiloxane itself may cause the appearance of the molded product to become dirty. . Also, other organopolysiloxanes can be used in combination as long as the effect of adding the organopolysiloxane having a carboxyl group is not impaired.
- the acid-polyethylene used in the second aspect has a polar group with carboxylic acid isotropic and a nonpolar group with long carbon chain force.
- the method for producing the acid polyethylene for the second aspect is not particularly limited, but for example, those obtained by acidifying high-density polyethylene are preferred.
- the dropping point of acid polyethylene wax is preferably 60 ° C or higher and 140 ° C or lower, more preferably 100 ° C or higher and 130 ° C or lower. If the drip point is less than the above lower limit, the thermal stability is not sufficient, and therefore, the oxidized polyethylene wax may seize in the mold during continuous molding, which may deteriorate the releasability and impair continuous moldability. is there.
- the maximum particle size of oxidized polyethylene is preferably 150 ⁇ m or less. If it is larger than 150 ⁇ m, the meltability at the time of molding becomes poor and the material becomes non-uniform, resulting in deterioration of releasability and appearance of the molded product. There is a risk of failure.
- the average particle diameter of the oxidized polyethylene is preferably 0.1 l / zm or more and 100 m or less. If it is less than the above lower limit value, the compatibility between the acid-polyethylene wax and the epoxy resin matrix is too good, so that the cured product surface cannot be oozed out, and there is a possibility that sufficient releasing effect may not be obtained. is there. If the above upper limit is exceeded, acid-polyethylene wax will pray and mold fouling will occur. There is a risk of deteriorating the appearance of the cured resin.
- These maximum particle size and average particle size are preferably measured with a laser diffraction particle size distribution measuring device.
- a laser diffraction particle size distribution measuring device manufactured by Shimadzu Corporation.
- the measurement mode of the average particle diameter represents the number average particle diameter.
- the content of the acid polyethylene wax is preferably 0.01% by weight or more and 1% by weight or less in the total epoxy resin composition. If it is less than the above lower limit, there is a risk of insufficient releasability. If the above upper limit is exceeded, the adhesion to the lead frame member is impaired, and there is a risk of peeling from the member during soldering. In addition, if the mold is dirty, the appearance of the cured resin resin may be deteriorated.
- other release agents may be used in combination.
- examples thereof include natural waxes such as carnauba wax, metal salts of higher fatty acids such as zinc stearate, and fatty acid esters.
- the epoxy resin composition of the second aspect is composed of (A), (B), (D), (F) and (G) components, and preferably further contains (E) component, If necessary, a curing accelerator that accelerates the curing reaction between the epoxy group and the phenolic hydroxyl group can be added.
- a curing accelerator that accelerates the curing reaction between the epoxy group and the phenolic hydroxyl group
- examples of the curing accelerator include diazabicycloalkenes such as 1,8 diazabicyclo (5, 4, 0) undecene 7 and derivatives thereof, organic phosphines such as triphenylphosphine and methyldiphenylphosphine, and 2-methylimidazole. Imidazole compounds such as tetraphenyl phospho-um 'tetraphenyl borates and the like, and these may be added alone or in admixture. .
- the epoxy resin composition includes an organic ion exchanger such as acid bismuth hydrate, a coupling agent such as y-glycidoxypropyltrimethoxysilane, carbon black, Various additives such as a colorant such as Bengala, a low-stress component such as silicone oil and silicone rubber, and an anti-oxidation agent may be appropriately blended.
- the inorganic filler may be used after being pretreated with a treating agent such as a coupling agent, epoxy resin or phenol resin.
- a treatment method an inorganic filler and a treatment agent are mixed using a solvent. There are a method of removing the solvent after the combination, a method of adding the treatment agent directly to the inorganic filler, and a treatment using a mixer.
- the epoxy resin composition of the second aspect is prepared by mixing the above-described components and other additives at room temperature using a mixer, and then melt-kneading them with a kneader such as a roll or an extruder, after cooling. It is obtained by grinding.
- the epoxy resin composition for semiconductor encapsulation obtained according to the second aspect described above uses no, a rogen-based flame retardant, an antimony compound, and other flame retardant imparting agents.
- the flame retardant grade is UL-94 V-0
- the semiconductor device obtained by using parenthesis is tempered by adding a cured product of a resin composition and a lead frame, particularly a triazole compound.
- Excellent adhesion to copper lead frames silver plated lead frame, nickel plated lead frame, pre-bleeding frame with nickel-z-palladium alloy plated with gold, etc.
- excellent solder reflow resistance during semiconductor mounting In addition, it is excellent in productivity. Therefore, the epoxy resin composition of the second aspect can be suitably used for industrial production of a resin-sealed semiconductor device, particularly a resin-encapsulated semiconductor device for surface mounting.
- the third aspect of the present invention includes (A) an epoxy resin represented by the general formula (1), (B) a phenol resin represented by the general formula (2), and (H) the general formula (5).
- An epoxy resin composition containing, as an essential component, (I) a silane coupling agent, and (D) an inorganic filler, wherein the component (H) is contained in the epoxy resin composition.
- (D) component is contained in a proportion of 84% by weight or more and 92% by weight or less, so that halogen flame retardants, antimony compounds, and other difficult Epoxy for semiconductor encapsulation with high solder reflow resistance that can be used for lead-free solder with flame retardancy of UL-94 V-0 without the use of flammability imparting agents, and without sacrificing fluidity Provide a greave composition.
- each component will be described in detail.
- the epoxy resin (A) represented by the general formula (1), the phenol resin (B) represented by the general formula (2), and the inorganic filler (D) include: The same force used in the first aspect described above is used in the same way, so the explanation is omitted.
- the curing accelerator (H) represented by the general formula (5) is a molecular compound of a tetra-substituted phosphonium and dihydroxynaphthalene, and provides storage stability and sealing during storage of the epoxy resin composition. It is possible to achieve both fast curing at the time of molding. It is essential that the hardening accelerator (H) represented by the general formula (5) is contained in a proportion of 0.05% by weight or more and 0.5% by weight or less based on the total epoxy resin composition. More preferably, it is contained in a proportion of 0.1% by weight or more and 0.4% by weight or less. Within the above range, it is possible to suppress the decrease in curability of the epoxy resin composition, and to suppress the occurrence of problems such as a decrease in fluidity at the time of sealing molding, filling failure, and wire deformation. it can.
- m is a number 0 ⁇ m ⁇ 2.
- curing accelerator (C) represented by the general formula (5)
- curing accelerator (C) if necessary, curing of epoxy groups and phenolic hydroxyl groups generally used in sealing materials. You may use together the hardening accelerator which accelerates
- curing accelerators that can be used in combination include diazabicycloalkenes such as 1,8 diazabicyclo (5, 4, 0) undecene 7 and derivatives thereof, and amine compounds such as tributylamine and benzyldimethylamine, Forces including, for example, organophosphorus compounds such as tetraphenylphosphonium tetranaphthoic acid borate and triphenylphosphine, but not limited thereto.
- curing accelerators that can be used in combination may be used alone or in combination of two or more.
- 1,8 diazabicyclo (5, 4, 0) undecene-7 is particularly useful in various groups. It is effective for improving adhesion to materials, and tetraphenylphospho-tum tetranaphthoic acid borate greatly improves the storage properties (storage stability) of epoxy resin compositions at room temperature. effective.
- the silane coupling agent (I) is not particularly limited to epoxy silane, amino silane, ureido silane, mercapto silane, etc., and reacts between the epoxy resin composition and the inorganic filler to form an epoxy resin composition. Any silane coupling agent can be used if it improves the interfacial strength between the material and the inorganic filler!
- the silane coupling agent (I) is a compound in which a hydroxyl group is bonded to each of two or more adjacent carbon atoms constituting the aromatic ring, such as the curing accelerator (H) represented by the general formula (5).
- the curing accelerator (H) represented by the general formula (5) exhibits a hardening delay effect, storage stability during storage of the epoxy resin composition, and sealing Viscosity and flow characteristics during molding can be significantly improved.
- the silane coupling agent (I) is essential in order to sufficiently obtain the effect of the curing accelerator (H) represented by the general formula (5).
- These silane coupling agents (I) may be used alone or in combination of two or more.
- the blending amount of the silane coupling agent (I) is preferably 0.01% by weight or more and 1% by weight or less in the total epoxy resin composition, more preferably 0.05% by weight or more, 0.8 or less, Particularly preferred is 0.1% by weight or more and 0.6% by weight or less.
- the amount of the silane coupling agent (I) is within the above range, the effect of the curing accelerator (H) represented by the general formula (5) can be sufficiently exerted, and the epoxy resin composition
- the deterioration of solder crack resistance in a semiconductor device hereinafter also referred to as “semiconductor package” or simply “package”
- semiconductor package semiconductor package
- a decrease in solder crack resistance of the semiconductor package due to an increase in water absorption of the epoxy resin composition can be suppressed.
- the epoxy resin composition of the third aspect is composed of the above-described component forces. Power required to be constituted Colorants such as carbon black and bengara, low-stress components such as silicone oil and silicone rubber, natural wax, Various additives such as synthetic waxes, mold release agents such as higher fatty acids and their metal salts or paraffin, inorganic ion exchangers such as bismuth oxide hydrates, and antioxidants may be appropriately blended. Furthermore, if necessary, an inorganic filler may be pretreated with a treatment agent such as a coupling agent, epoxy resin or phenol resin, and so on. Examples of the processing method include a method of removing the solvent after mixing the inorganic filler and the processing agent using a solvent, a method of adding the processing agent directly to the inorganic filler, and processing using a mixer. is there.
- the epoxy resin composition of the third aspect is prepared by mixing the above-mentioned components and other additives at room temperature using a mixer, and then melt-kneading them with a kneader such as a roll or an extruder, followed by cooling. It can be obtained after grinding.
- transfer mold, compression mold, injection mold, etc. are used to manufacture a semiconductor device by sealing an electronic component such as a semiconductor element using the epoxy resin composition of the third aspect.
- Curing and molding may be performed by the molding method described below.
- example series (1) relates to the first aspect
- example series (2) relates to the second aspect
- example series (3) relates to the third aspect.
- Epoxy resin 1 Epoxy resin represented by formula (la) (softening point 44 ° C, epoxy equivalent 234, hereinafter referred to as E-1) 6. 21 parts by weight
- Phenolic resin 1 Phenolic resin represented by the formula (2a) (soft soft point 107 ° C, hydroxyl group equivalent 203, hereinafter referred to as H-1) 4. 89 parts by weight
- DBU Undecen 7
- Fused spherical silica (average particle size 25 ⁇ m) 88.00
- Adhesion strength Using a transfer molding machine, the die temperature is 175 ° C, the injection pressure is 9.8 MPa, and the curing time is 120 seconds. Ten pieces were molded per level.
- “one level” means a combination of one type of epoxy resin composition and one type of frame.
- Two types of lead frame were used: a silver-plated copper frame (frame 1) and a gold-plated NiPd alloy frame (frame 2). Thereafter, the shear strength between the cured epoxy resin composition and the lead frame was measured using an automatic shear strength measuring apparatus PC2400 (manufactured by DAGE). The average value of the shear strength of 10 specimens was displayed. The unit of measurement is NZmm 2 .
- Flame Retardancy Using a transfer molding machine, molds with a mold temperature of 175 ° C, injection pressure of 9.8Mpa, curing time of 120 seconds and dimensions of 127mm XI 2.7mm X l. After processing at 175 ° C for 8 hours as a after-beta, ⁇ F and Fmax were measured according to the UL-94 vertical method to determine flame retardancy.
- Solder reflow resistance Using a transfer molding machine, mold temperature 175 ° C, injection pressure 9.6 MPa, curing time 90 seconds, 80pQFP (80pin pre-plating frame, NiPd alloy with Au plating, package External dimensions: 14 mm X 20 mm X 2 mm thick, pad size: 8 mm X 8 mm, chip size: 7 mm X 7 mm) and post-cured at 175 ° C for 8 hours. The resulting package was humidified for 168 hours in an environment of 85 ° C and 60% relative humidity. After that, this package was immersed in a solder bath at 260 ° C for 10 seconds.
- Example (1) Raw materials used in other than 1 are shown below.
- Epoxy resin 2 Epoxy resin represented by formula (la) (softening point 55 ° C, epoxy equivalent 236, hereinafter referred to as E-2)
- Epoxy resin 3 Orthocresol novolac epoxy resin EOCN-1020 62 (Nippon Kayaku Co., Ltd., epoxy equivalent 200, softening point 62 ° C, hereinafter referred to as E-3)
- Phenolic resin 2 paraxylene-modified novolac-type phenolic resin XLC-4L (Mitsui Chemicals, hydroxyl equivalent 168, softening point 62 ° C, hereinafter referred to as H-2)
- Molten mixture A E—1 (55.9 parts by weight) and H—1 (44.1 parts by weight) at 120 ° C. for 30 minutes, A mixture obtained by melt mixing.
- Epoxy resin 1 Epoxy resin represented by formula (la) (softening point 44 ° C, epoxy equivalent 234, hereinafter referred to as E-1) 6.09 parts by weight
- Phenolic resin 1 Phenolic resin represented by formula (2a) (soft soft point 107 ° C, hydroxyl group equivalent 203, hereinafter referred to as H-1) 4. 41 parts by weight
- Organopolysiloxane represented by formula (4a) (hereinafter referred to as organopolysiloxane 1 and! ⁇ ⁇ )
- Oxidized polyethylene wax 1 (acid drop high-density polyethylene having a dropping point of 120 ° C, a maximum particle size of 100 ⁇ m, and an average particle size of 50 ⁇ m) 0.20 parts by weight
- Fused spherical silica (average particle size 25 ⁇ m) 88.00 parts by weight
- Coupling agent ( ⁇ -glycidoxypropyltrimethoxysilane) 0.40 part by weight Carbon black 0.40 part by weight
- Epoxy resin 2 Epoxy resin represented by formula (la) (softening point 55 ° C, epoxy equivalent 236, hereinafter referred to as E-2)
- Epoxy resin 3 Orthocresol novolac epoxy resin EOCN-1020 62 (Nippon Kayaku Co., Ltd., epoxy equivalent 200, softening point 62 ° C, hereinafter referred to as E-3)
- Phenolic resin 2 paraxylene-modified novolac-type phenolic resin XLC-4L (Mitsui Chemicals, hydroxyl equivalent 168, softening point 62 ° C, hereinafter referred to as H-2)
- Molten mixture A A mixture obtained by melt-mixing E-1 (55.9 parts by weight) and H-1 (44.1 parts by weight) at 120 ° C for 30 minutes.
- Organopolysiloxane represented by the formula (4b) (hereinafter referred to as organopolysiloxane 2!)
- Organopolysiloxane represented by the formula (4c) (hereinafter referred to as organopolysiloxane 3 and! ⁇ ⁇ ) [0157] [Chemical Formula 33] (4 c)
- Organopolysiloxane represented by formula (7) (hereinafter referred to as organopolysiloxane 4!)
- Molten reaction product A Bisphenol A type epoxy resin YL—6810 (manufactured by Japan Epoxy Resin, epoxy equivalent 170gZeq, melting point 47 ° C) 66. 1 part by weight is heated and melted at 140 ° C to form organopolysiloxane 3 (Organopolysiloxane represented by the formula (4c)) 33.1 parts by weight and triphenylphosphine 0.8 parts by weight were added, and melted and mixed for 30 minutes. Obtained.
- Oxidized polyethylene wax 2 (acid-high density polyethylene with a dropping point of 110 ° C, maximum particle size of 100 ⁇ m, and average particle size of 80 ⁇ m)
- Oxidized polyethylene wax 3 (acid-high density polyethylene with a dropping point of 125 ° C, maximum particle size of 100 ⁇ m, average particle size of 5 ⁇ m)
- Epoxy resin 1 Epoxy resin represented by formula (la) (softening point 44 ° C, epoxy equivalent 234) 6. 42 parts by weight
- Phenolic resin 1 Phenolic resin represented by formula (2a) (soft soft point 107 ° C, hydroxyl group: 98) 4.28 parts by weight
- Silane coupling agent 1 ⁇ -mercaptotripropylmethoxysilane
- Fused spherical silica (average particle size 25 ⁇ m) 88.00 parts carbon black 0.40 parts by weight
- Silicone oil 0.20 part by weight of polyorganosiloxane represented by formula (8)
- Curability 30 g of the epoxy resin composition powder was placed on a hot plate at 175 ° C, kneaded with a metal spatula, and the time until gelation was measured. In general transfer molding, molding is performed in about 50 seconds or more and 120 seconds or less. If the gel time is 45 seconds or more, molding failure may occur.
- Soldering reflow resistance 80pQFP (copper frame: 14mm x 20mm x 2mm thickness, pad size: 8mm x 8mm, chip size: 7mm x 7mm) using a low-pressure transfer automatic development machine, examples and comparative examples
- the sealing resin described was sealed and molded at a mold temperature of 175 ° C., an injection pressure of 9.6 MPa, and a curing time of 90 seconds, and then cured at 175 ° C. for 4 hours.
- the 16 samples thus prepared were divided into two groups. One group and the other group were separately separated in an environment of 85 ° C and 60% relative humidity for 168 hours, 85 ° C and relative humidity.
- Epoxy resin 2 epoxy resin represented by formula (la) (softening point 55 ° C, epoxy equivalent 236)
- Epoxy resin 3 Bi-type epoxy resin YX—4000K (manufactured by Yuka Shell Epoxy Co., Ltd., epoxy equivalent 185, melting point 105 ° C)
- Epoxy resin 4 Bisphenol A type epoxy resin YL—6810 (Japan epoxy resin, epoxy equivalent 170gZeq, melting point 47 ° C)
- Phenolic resin 2 paraxylene-modified novolak-type phenol resin (manufactured by Mitsui Chemicals, XLC-4L, hydroxyl equivalent 168, softening point 62 ° C)
- Curing accelerator 2 Triphenylphosphine
- Silane coupling agent 2 N-phenol ⁇ -aminomer. , 1 kn
- Silane coupling agent 3 Y , Then k "
- Phenolic resin 1 4.92 5.12 4.45 4.47 4.36 7.08 2.33 Phenolic resin 2 3.87
- Curing accelerator 1 0.20 0.20 0.20 0.20 0.20 0.20 0.30 0.10 Curing accelerator 2 0.15 0.08
- Silane coupling agent 1 0.20 0.20 0.20 0.20 0.20 0.20 0.20 0.20 0.20 0.20 0.20 0.20 Fused spherical silica 88.00 88.00 88.00 88.00 88.00 81.00 93.00 Ritsubon black 0.40 0.40 0.40 0.40 0.40 0.40 Silicone oil 0.20 0.20 0.20 0.20 0.20 0.20 0.20 Carnauba wax 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 Spiral mouth [cm] 169 164 92 75 120 77 135 35 Gel time [sec] 60 55 30 27 49 36 40 36 Flame resistance (3.2mm thickness) V-1 V- 1 V-1 V -0 V-0 V-0 Burned V- 0
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
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- Epoxy Resins (AREA)
- Structures Or Materials For Encapsulating Or Coating Semiconductor Devices Or Solid State Devices (AREA)
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Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
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| KR1020077011274A KR101235075B1 (ko) | 2004-11-02 | 2005-11-01 | 에폭시 수지 조성물 및 반도체 장치 |
| KR1020127018865A KR101254524B1 (ko) | 2004-11-02 | 2005-11-01 | 에폭시 수지 조성물 및 반도체 장치 |
| CN2005800346988A CN101039984B (zh) | 2004-11-02 | 2005-11-01 | 环氧树脂组合物及半导体装置 |
| KR1020127018866A KR101254523B1 (ko) | 2004-11-02 | 2005-11-01 | 에폭시 수지 조성물 및 반도체 장치 |
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| JP2004-318789 | 2004-11-02 | ||
| JP2004318789A JP4687074B2 (ja) | 2004-11-02 | 2004-11-02 | エポキシ樹脂組成物及び半導体装置 |
| JP2004374503A JP4682617B2 (ja) | 2004-12-24 | 2004-12-24 | エポキシ樹脂組成物及び半導体装置 |
| JP2004-374503 | 2004-12-24 | ||
| JP2005-099391 | 2005-03-30 | ||
| JP2005099391A JP4687195B2 (ja) | 2005-03-30 | 2005-03-30 | 半導体封止用エポキシ樹脂組成物及び半導体装置 |
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| KR (3) | KR101254523B1 (ja) |
| CN (1) | CN101906238B (ja) |
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| US7797018B2 (en) * | 2005-04-01 | 2010-09-14 | Interdigital Technology Corporation | Method and apparatus for selecting a multi-band access point to associate with a multi-band mobile station |
| CN101223207B (zh) * | 2005-07-29 | 2012-02-29 | 住友电木株式会社 | 环氧树脂组合物和半导体装置 |
| KR101016067B1 (ko) * | 2006-03-31 | 2011-02-17 | 스미토모 베이클리트 컴퍼니 리미티드 | 반도체 봉지용 수지 조성물 및 반도체 장치 |
| DE102006032074B3 (de) * | 2006-07-11 | 2007-12-27 | Infineon Technologies Ag | Bauelement und zugehöriger Anschlussdraht |
| JP5133598B2 (ja) * | 2007-05-17 | 2013-01-30 | 日東電工株式会社 | 封止用熱硬化型接着シート |
| KR100896794B1 (ko) * | 2007-12-26 | 2009-05-11 | 제일모직주식회사 | 반도체 소자 밀봉용 에폭시 수지 조성물 및 이를 이용한 반도체 소자 |
| JP2009215484A (ja) * | 2008-03-12 | 2009-09-24 | Toshiba Corp | 樹脂組成物及びそれを用いた半導体装置 |
| CN102165583B (zh) * | 2008-10-10 | 2015-05-20 | 住友电木株式会社 | 半导体装置 |
| CN102197339B (zh) * | 2008-11-07 | 2015-03-04 | 住友电木株式会社 | 感光性树脂组合物、感光性粘接膜以及光接收装置 |
| JP5529494B2 (ja) * | 2009-10-26 | 2014-06-25 | 株式会社三井ハイテック | リードフレーム |
| US8481626B1 (en) * | 2012-01-16 | 2013-07-09 | Itron, Inc. | Wax-based encapsulant/moisture barrier for use with electronics received in water meter pits |
| US8728568B2 (en) | 2012-01-16 | 2014-05-20 | Itron, Inc. | Method for encapsulation of electronics received in water meter pits with an improved wax-based encapsulant/moisture barrier |
| JP5775494B2 (ja) * | 2012-02-28 | 2015-09-09 | 富士フイルム株式会社 | 銀イオン拡散抑制層形成用組成物、銀イオン拡散抑制層用フィルム、配線基板、電子機器、導電膜積層体、およびタッチパネル |
| WO2013145594A1 (ja) | 2012-03-29 | 2013-10-03 | 三井化学株式会社 | フェノール樹脂成形材料、摩擦材、およびフェノール樹脂成形品 |
| DE102012213260A1 (de) * | 2012-07-27 | 2014-01-30 | Wacker Chemie Ag | Additionsvernetzende Siliconzusammensetzung mit niedrigem Druckverformungsrest |
| KR101476608B1 (ko) * | 2012-12-28 | 2014-12-24 | 주식회사 서한안타민 | 난연성(ifr) 열경화성 수지 및 그 제조방법 |
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2005
- 2005-11-01 KR KR1020127018866A patent/KR101254523B1/ko not_active Expired - Fee Related
- 2005-11-01 WO PCT/JP2005/020088 patent/WO2006049156A1/ja not_active Ceased
- 2005-11-01 KR KR1020077011274A patent/KR101235075B1/ko not_active Expired - Fee Related
- 2005-11-01 US US11/263,822 patent/US7741388B2/en not_active Expired - Fee Related
- 2005-11-01 KR KR1020127018865A patent/KR101254524B1/ko not_active Expired - Fee Related
- 2005-11-01 SG SG200906929-5A patent/SG170630A1/en unknown
- 2005-11-01 CN CN2010102211314A patent/CN101906238B/zh not_active Expired - Fee Related
- 2005-11-02 TW TW101105594A patent/TWI455991B/zh not_active IP Right Cessation
- 2005-11-02 MY MYPI20055179A patent/MY144740A/en unknown
- 2005-11-02 TW TW101105593A patent/TWI455990B/zh not_active IP Right Cessation
- 2005-11-02 TW TW094138353A patent/TWI369370B/zh not_active IP Right Cessation
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08120054A (ja) * | 1994-10-27 | 1996-05-14 | Matsushita Electric Works Ltd | 封止用エポキシ樹脂組成物及び半導体装置 |
| JPH1129695A (ja) * | 1997-07-11 | 1999-02-02 | Otsuka Chem Co Ltd | エポキシ樹脂用硬化促進剤及びエポキシ樹脂組成物 |
| JP2000007761A (ja) * | 1998-06-25 | 2000-01-11 | Sumitomo Bakelite Co Ltd | 熱硬化性樹脂組成物 |
| JP2001089551A (ja) * | 1999-09-27 | 2001-04-03 | Sumitomo Bakelite Co Ltd | エポキシ樹脂組成物及び半導体装置 |
| JP2002356538A (ja) * | 2001-03-30 | 2002-12-13 | Toray Ind Inc | 半導体封止用エポキシ樹脂組成物及びそれを用いた半導体装置 |
| JP2004067717A (ja) * | 2002-08-01 | 2004-03-04 | Sumitomo Bakelite Co Ltd | エポキシ樹脂組成物及び半導体装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI455991B (zh) | 2014-10-11 |
| TW200630432A (en) | 2006-09-01 |
| SG170630A1 (en) | 2011-05-30 |
| TW201224051A (en) | 2012-06-16 |
| KR101254524B1 (ko) | 2013-04-19 |
| KR20120101139A (ko) | 2012-09-12 |
| KR101235075B1 (ko) | 2013-02-19 |
| TW201226467A (en) | 2012-07-01 |
| TWI455990B (zh) | 2014-10-11 |
| KR101254523B1 (ko) | 2013-04-19 |
| US7741388B2 (en) | 2010-06-22 |
| KR20130007545A (ko) | 2013-01-18 |
| CN101906238B (zh) | 2011-11-23 |
| KR20070084338A (ko) | 2007-08-24 |
| US20060094797A1 (en) | 2006-05-04 |
| MY144740A (en) | 2011-10-31 |
| CN101906238A (zh) | 2010-12-08 |
| TWI369370B (en) | 2012-08-01 |
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