WO2023033090A1 - 半導体素子パッケージの製造方法及び半導体素子パッケージ - Google Patents
半導体素子パッケージの製造方法及び半導体素子パッケージ Download PDFInfo
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- WO2023033090A1 WO2023033090A1 PCT/JP2022/032886 JP2022032886W WO2023033090A1 WO 2023033090 A1 WO2023033090 A1 WO 2023033090A1 JP 2022032886 W JP2022032886 W JP 2022032886W WO 2023033090 A1 WO2023033090 A1 WO 2023033090A1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/93—Batch processes
- H01L24/95—Batch processes at chip-level, i.e. with connecting carried out on a plurality of singulated devices, i.e. on diced chips
- H01L24/97—Batch processes at chip-level, i.e. with connecting carried out on a plurality of singulated devices, i.e. on diced chips the devices being connected to a common substrate, e.g. interposer, said common substrate being separable into individual assemblies after connecting
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/022—Mountings; Housings
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F39/00—Integrated devices, or assemblies of multiple devices, comprising at least one element covered by group H10F30/00, e.g. radiation detectors comprising photodiode arrays
- H10F39/10—Integrated devices
- H10F39/12—Image sensors
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F77/00—Constructional details of devices covered by this subclass
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- H10P54/00—
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- H10W42/121—
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- H10W76/10—
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- H10W76/17—
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- H10W76/60—
Definitions
- the present invention relates to a semiconductor element package manufacturing method and a semiconductor element package.
- a semiconductor device package which includes a substrate, a semiconductor device arranged on the substrate, and a cover which covers the semiconductor device and is joined to the substrate, wherein the semiconductor device is housed in an internal space formed by the substrate and the cover.
- Patent Document 1 describes a semiconductor substrate, a functional element arranged on the semiconductor substrate, a cap substrate arranged opposite to one surface of the semiconductor substrate with a predetermined gap from the surface, and a peripheral of the functional element. and a sealing member disposed in the sealing member to join the semiconductor substrate and the cap member.
- the semiconductor element package of Patent Document 1 employs a sealing member having a moisture-permeable resin layer for the purpose of preventing dew condensation inside the package.
- the semiconductor device package of Patent Document 1 (1) may be damaged if the pressure (internal pressure) inside the package rises significantly due to high-temperature processing such as solder reflow. and (2) it is efficient to collectively form a plurality of semiconductor element packages using a substrate sheet on which a plurality of semiconductor elements are arranged, and to divide this to manufacture a plurality of semiconductor element packages.
- this method is particularly prone to damage. According to studies, it is difficult to cope with the increase in internal pressure by forming the adhesive layer to be bonded to the moisture-permeable resin layer by applying an adhesive composition to the substrate separately from the moisture-permeable resin layer. is estimated to be
- the present invention provides a method of manufacturing a plurality of semiconductor element packages using a substrate sheet on which a plurality of semiconductor elements are arranged, and is suitable for suppressing damage to the semiconductor element packages due to an increase in internal pressure. aim.
- the present invention A method for manufacturing a plurality of semiconductor device packages, comprising:
- the plurality of semiconductor device packages each include a substrate, a semiconductor device arranged on the substrate, a cover covering the semiconductor device, and a semiconductor device arranged between the substrate and the cover so as to surround the semiconductor device. and a porous body, wherein gas can pass through the interior of the porous body between the internal space in which the semiconductor element is arranged and the external space,
- the manufacturing method is A double-sided pressure-sensitive adhesive sheet having a cover sheet, a substrate sheet on which the plurality of semiconductor elements are arranged, a plurality of through holes, and a porous sheet and adhesive layers preliminarily formed on both sides of the porous sheet.
- the present invention provides a substrate, a semiconductor element arranged on the substrate, a cover covering the semiconductor element, and a porous body arranged between the substrate and the cover so as to surround the semiconductor element; gas can pass through the interior of the porous body between the internal space in which the semiconductor element is arranged and the external space;
- the substrate and the cover are bonded via a double-sided adhesive part having the porous body and adhesive layers formed on both sides of the porous body, semiconductor device package, I will provide a.
- the manufacturing method of the present invention it is possible to efficiently manufacture a semiconductor element package that is suitable for suppressing damage to the semiconductor element package due to an increase in internal pressure. Moreover, according to the semiconductor element package of the present invention, it is possible to reliably suppress damage due to an increase in internal pressure.
- FIG. 1 is a cross-sectional view schematically showing an example of a semiconductor device package that can be manufactured by the manufacturing method of the present invention.
- FIG. 2A is a schematic diagram (exploded perspective view) for explaining an example of the manufacturing method of the present invention.
- FIG. 2B is a schematic diagram (perspective view) for explaining an example of the manufacturing method of the present invention.
- FIG. 2C is a schematic diagram (perspective view) for explaining an example of the manufacturing method of the present invention.
- FIG. 3 is a schematic diagram for explaining a method for evaluating the shear force of a porous sheet that can be included in the double-sided pressure-sensitive adhesive sheet used in the production method of the present invention.
- FIG. 4 is a schematic diagram for explaining a method for evaluating the lateral water pressure resistance of a porous sheet that can be included in the double-sided pressure-sensitive adhesive sheet used in the production method of the present invention.
- the manufacturing method comprises: A method for manufacturing a plurality of semiconductor device packages, comprising: The plurality of semiconductor device packages each include a substrate, a semiconductor device arranged on the substrate, a cover covering the semiconductor device, and a semiconductor device arranged between the substrate and the cover so as to surround the semiconductor device. and a porous body, wherein gas can pass through the interior of the porous body between the internal space in which the semiconductor element is arranged and the external space,
- the manufacturing method is A double-sided pressure-sensitive adhesive sheet having a cover sheet, a substrate sheet on which the plurality of semiconductor elements are arranged, a plurality of through holes, and a porous sheet and adhesive layers preliminarily formed on both sides of the porous sheet.
- the porous sheet has a shearing force of 50 N/100 mm 2 or more.
- the lateral water pressure resistance of the porous sheet is 400 kPa or more.
- the porous sheet contains a heat-resistant material.
- the heat-resistant material is fluororesin.
- the porous sheet is a stretched porous fluororesin sheet.
- the cover sheet does not have air permeability in the thickness direction.
- the cover sheet is optically transparent.
- the cover sheet contains at least one selected from heat-resistant resin and glass.
- the cover sheet includes an optical lens.
- a semiconductor element package includes: a substrate, a semiconductor element arranged on the substrate, a cover covering the semiconductor element, and a porous body arranged between the substrate and the cover so as to surround the semiconductor element; gas can pass through the interior of the porous body between the internal space in which the semiconductor element is arranged and the external space;
- the substrate and the cover are bonded via a double-sided adhesive portion having the porous body and adhesive layers formed on both sides of the porous body.
- the porous body has a shearing force of 50 N/100 mm 2 or more.
- the porous body has a lateral water pressure resistance of 400 kPa or more.
- the manufacturing method of this embodiment is a method of manufacturing a semiconductor device package 11 in which a semiconductor device 13 is arranged in an internal space 14 formed by a substrate 12 and a cover 15 (see FIG. 1; shows an example of a semiconductor device package that can be manufactured by the manufacturing method of .
- the semiconductor device package 11 includes a substrate 12, a semiconductor device 13 arranged on the substrate 12, a cover 15 covering the semiconductor device 13, and arranged between the substrate 12 and the cover 15 so as to surround the semiconductor device 13. and a porous body 2 .
- the internal space 14 in which the semiconductor element 13 is arranged can communicate with the external space 16 via the inside of the porous body 2 .
- the substrate 12 and the cover 15 comprise a double-sided adhesive portion 1 having a porous body 2 and adhesive layers 3 (first adhesive layer 3A and second adhesive layer 3B) formed in advance on both sides of the porous body 2 respectively. are connected through
- the cover 15 can protect the semiconductor device 13 from foreign substances in the external space 16, such as dust, debris, and water.
- the cover 15 may have a function other than the function of protecting the semiconductor element 13 from foreign matter in the external space 16 .
- an optically transparent cover 15 or a cover 15 including an optical lens can provide a light transmission path between the semiconductor element 13 and the external space 16 .
- Reference numeral 18 is a resin lid formed on the substrate 12 .
- the resin lid 18 may be arranged on the substrate 12 for the purpose of ensuring bonding between the substrate 12 and the adhesive layer 3, for example.
- the double-sided adhesive part 1 and the resin lid 18 constitute the wall surface of the internal space 14 .
- the semiconductor element 13 in FIG. 1 is exposed in the internal space 14 .
- a laminate 21 is formed by bonding a cover sheet 25 and a substrate sheet 22 having a plurality of semiconductor elements 13 formed thereon through a double-sided adhesive sheet 31.
- the double-sided adhesive sheet 31 has a plurality of through-holes 26, and the porous sheet 32 and the adhesive layers 3 (first adhesive layer 3A and second adhesive layer 3B) formed in advance on both sides of the porous sheet 32, respectively. ) and Bonding is performed such that the semiconductor element 13 is positioned within the through hole 26 and covered by the cover sheet 25 .
- the double-sided adhesive sheet 31 has a plurality of through-holes 26 respectively corresponding to the semiconductor elements 13 .
- Each through-hole 26 generally has a shape surrounding each corresponding semiconductor element 13 when viewed from a direction perpendicular to the main surface of the substrate sheet 22 .
- both openings of the through holes 26 are closed by the cover sheet 25 and the substrate sheet 22 .
- a resin layer 28 that becomes the resin lid 18 after the laminate 21 is divided is arranged between the substrate sheet 22 and the double-sided adhesive sheet 31.
- the cover sheet 25 and the double-sided adhesive sheet 31 are in contact with each other.
- Other members may or may not be arranged between the substrate sheet 22 and the double-sided adhesive sheet 31 and between the double-sided adhesive sheet 31 and the cover sheet 25 .
- the plurality of semiconductor elements 13 are arranged regularly (in a two-dimensional array).
- the laminate is formed such that a plurality of covers 15, a plurality of substrates 12, and a plurality of porous bodies 2 are obtained from the cover sheet 25, the substrate sheet 22, and the porous body sheet 32, respectively.
- 21 is divided to obtain a plurality of semiconductor element packages 11 (dividing step). The division is usually performed at positions (dividing lines 29) between the through-holes 26 when viewed from the direction perpendicular to the main surface of the substrate sheet 22. As shown in FIG.
- the adhesive composition When the adhesive composition is applied to the surface of the substrate sheet 22 and the porous sheet 32 is attached thereon, the adhesive composition easily permeates into the porous sheet 32 .
- the double-sided adhesive sheet 31 having the porous sheet 32 and the adhesive layers 3 pre-formed on both sides of the porous sheet 32 penetration of the adhesive component into the porous sheet 32 is suppressed. Therefore, the manufacturing method of this embodiment using the double-sided adhesive sheet 31 for bonding is suitable for ensuring air permeability through the porous body sheet 32 and the porous body 2 .
- the substrate sheet 22 includes, for example, a semiconductor material such as silicon (Si), a phenol resin, an epoxy resin, ceramic, or the like based on paper, glass cloth, or the like.
- the substrate sheet 22 may be a semiconductor substrate sheet.
- the substrate sheet 22 is not limited to the above example, and a substrate sheet 22 containing the same material as a substrate provided in a known semiconductor device package can be selected.
- the substrate sheet 22 may be a circuit board sheet having circuits formed thereon.
- a resin layer 28 that will become the resin lid 18 is formed on the surface of the substrate sheet 22 in FIGS. 2A to 2C by a dividing process.
- a plurality of through holes 24 are formed in the resin layer 28 of FIGS.
- 2A to 2C has the same shape as the through hole 26 of the double-sided adhesive sheet 31 when viewed from the direction perpendicular to the main surface of the substrate sheet 22. As shown in FIG. Moreover, the wall surface of the through-hole 24 and the wall surface of the through-hole 26 are aligned when viewed from the vertical direction.
- the shape of the through hole 24 is not limited to the above example, and can be selected according to the configuration of the semiconductor element package 11 to be manufactured, for example.
- the resin contained in the resin layer 28 is, for example, resist resin. In the resin layer 28 containing resist resin, the through holes 24 can be formed by a resist process. However, the resin contained in the resin layer 28 is not limited to the above examples. A member other than the semiconductor element 13 and the resin layer 28, such as a metal layer intended to reinforce the substrate sheet 22, may or may not be placed on the substrate sheet 22.
- semiconductor element 13 examples of the semiconductor element 13 are optical semiconductor elements such as CCD, CMOS, infrared (IR) sensor elements, TOF sensor elements, LIDAR sensor elements and laser elements, and acceleration sensors.
- Semiconductor device 13 may be a micro-electro-mechanical system (MEMS). However, the semiconductor element 13 is not limited to the above example.
- the double-sided pressure-sensitive adhesive sheet 31 includes a porous sheet 32, a first pressure-sensitive adhesive layer 3A and a second pressure-sensitive adhesive layer 3B.
- the shear force of the porous sheet 32 is, for example, 50 N/100 mm 2 or more, 75 N/100 mm 2 or more, 100 N/100 mm 2 or more, 125 N/100 mm 2 or more, 150 N/100 mm 2 or more, 170 N/100 mm 2 or more, 180 N/ It may be 100 mm 2 or more, 190 N/100 mm 2 or more, 200 N/100 mm 2 or more, or even 210 N/100 mm 2 or more.
- the upper limit of shear force is, for example, 350 N/100 mm 2 or less.
- the porous sheet 32 having a shear force within the above range can contribute to suppression of breakage (such as tearing) of the porous sheet 32 in the dividing step.
- a method for evaluating the shear force of the porous sheet 32 will be described with reference to FIG.
- a square having a length of 10 mm and a width of 10 mm (area of 100 mm 2 ) is cut out from the porous sheet 32 to be evaluated.
- double-sided adhesive tapes 51 having the same shape are attached to both sides of the cut porous sheet 32 .
- the double-faced adhesive tape 51 is adhered so that the perimeter of the double-sided adhesive tape 51 and the perimeter of the porous sheet 32 are aligned.
- the double-sided adhesive tape 51 may be a baseless tape.
- a stainless steel plate 52 as a test plate is attached to the exposed surface of each double-sided adhesive tape 51 .
- the shape of the stainless plate 52 is a rectangle with a length of 20 mm or more and a width of 10 mm.
- Each stainless steel plate 52 has a porous sheet 32 and a pair of double-sided adhesive tapes when viewed perpendicularly to the main surface of the porous sheet 32 so that the long sides of the stainless steel plates 52 match the long sides of the porous sheet 32 .
- 51 are laminated so as to cover the entire laminate.
- Each stainless steel plate 52 is provided with an end portion 53 (the end portion 53 is not in contact with the double-sided adhesive tape 51) having a length sufficient to fix the stainless steel plate 52 to the chuck of the tensile tester.
- the maximum stress value in the -strain (SS) curve can be defined as the shear force of the porous sheet 32 . Evaluation is carried out at room temperature.
- the shear force of the porous sheet 32 in the state of the double-sided adhesive sheet 31 can be reduced by using the adhesive layer 3 included in the double-sided adhesive sheet 31 instead of the double-sided adhesive tape 51 (in other words, the porous sheet 32 and the adhesive A double-sided adhesive sheet 31, which is a laminate of layers 3, is cut out) and evaluated in the same manner as described above.
- the cutting is preferably performed while avoiding the edges of the double-sided adhesive sheet 31 .
- the side water pressure resistance of the porous sheet 32 is, for example, 400 kPa or more, and may be 450 kPa or more, 500 kPa or more, 550 kPa or more, 600 kPa or more, 650 kPa or more, 700 kPa or more, 750 kPa or more, or even 800 kPa or more.
- the upper limit of the lateral water pressure resistance is, for example, 2000 kPa or less, and may be 1500 kPa or less, or even 1000 kPa or less.
- porous sheet 32 has a side water pressure resistance within the above range is effective in suppressing the scattering of fine powder that occurs during division and in the division process in which water is sometimes used to cool the division jig (for example, a dicing blade). , the entry of water into the internal space 14 of the semiconductor device package 11 can be suppressed.
- a method for evaluating the side water pressure resistance of the porous sheet 32 will be described with reference to FIG.
- a porous sheet 32 to be evaluated is cut into a picture frame having an outer dimension of 20 mm ⁇ 10 mm and an inner dimension of 16.5 mm ⁇ 5 mm.
- frame-shaped double-sided adhesive tapes 61 of the same size are attached to both sides of the cut porous sheet 32 .
- the double-faced adhesive tape 61 is adhered so that the perimeter of the double-sided adhesive tape 61 and the perimeter of the porous sheet 32 are aligned.
- a tape having sufficient water resistance and adhesiveness that does not allow water to permeate and that does not come off during evaluation of side water pressure resistance can be selected.
- the double-sided adhesive tape 61 may be a baseless tape.
- a glass plate 62 is attached to each exposed surface of each double-sided adhesive tape 61 .
- the porous sheet 32 and the pair of double-sided adhesive tapes 61 are attached to the glass plate 62 so as to cover the entire laminate of the porous sheet 32 and the pair of double-sided adhesive tapes 61 when viewed perpendicularly to the main surface of the porous sheet 32 .
- the glass plate 62 can be selected from those having sufficient area and strength so that the above bonding is possible and that the glass plate 62 is not greatly deformed during the evaluation of the lateral water pressure resistance.
- a space 63 surrounded by the side surface of the porous sheet 32, the side surface of the double-sided adhesive tape 61, and the glass plate 62 is formed with the pair of glass plates 62 bonded together.
- the whole is then placed in the interior 64 of a sealable evaluation container 65 and the container 65 is sealed.
- the container 65 can be selected to have sufficient transparency and strength to allow observation of the inside 64 and to withstand evaluation of lateral water pressure resistance.
- the container 65 is made of glass or acrylic, for example.
- water is poured into the interior 64 of the container 65 to increase the water pressure at a rate of 5 kPa/sec. , as the lateral water pressure resistance of the porous sheet 32 . Evaluation is carried out at room temperature.
- the side water pressure resistance of the porous sheet 32 in the state of the double-sided adhesive sheet 31 can be improved by using the adhesive layer 3 included in the double-sided adhesive sheet 31 instead of the double-sided adhesive tape 61 (in other words, the porous sheet 32 and the adhesive
- the double-sided adhesive sheet 31, which is a laminate of the agent layer 3, is cut out), and the evaluation can be performed in the same manner as described above.
- the cutting is preferably performed while avoiding the edges of the double-sided adhesive sheet 31 .
- the porosity of the porous sheet 32 is, for example, 20-95%.
- the lower limit of the porosity may be 25% or more, 30% or more, 40% or more, 50% or more, 55% or more, 60% or more, 65% or more, or even 70% or more.
- the upper limit of the porosity may be 90% or less, 85% or less, or even 80% or less.
- the porosity of the porous sheet 32 can be evaluated as follows.
- the porous sheet 32 to be evaluated is cut into a certain size (for example, a circle with a diameter of 47 mm), and its volume and weight are determined.
- the porosity of the porous sheet 32 is calculated by substituting the obtained volume and weight into the following formula (1).
- V is the volume (cm 3 )
- W is the weight (g)
- D is the true density (g/cm 3 ) of the material forming the porous sheet 32 .
- the porous sheet 32 may or may not have air permeability in the thickness direction.
- the air permeability in the thickness direction is the air permeability (Gurley air permeability) obtained in accordance with the air permeability measurement method B (Gurley type method) specified in Japanese Industrial Standards (former Japanese Industrial Standards; JIS) L1096:2010. can be represented by When the Gurley air permeability exceeds 10,000 seconds/100 mL, it can be determined that the porous sheet 32 does not have air permeability in the thickness direction.
- the porous sheet 32 having air permeability in the thickness direction has air permeability in the thickness direction of 1 to 350 seconds/100 mL, 5 to 300 seconds/100 mL, and further 10 to 200 seconds/100 mL, as expressed by Gurley air permeability. may have
- the water pressure resistance in the thickness direction of the porous sheet 32 is, for example, 100 kPa or more, and may be 110 kPa or more, 150 kPa or more, 180 kPa or more, 200 kPa or more, 230 kPa or more, 250 kPa or more, or even 270 kPa or more.
- the upper limit of water pressure resistance in the thickness direction is, for example, 1000 kPa or less, and may be 800 kPa or less, 700 kPa or less, 600 kPa or less, 550 kPa or less, or even 500 kPa or less.
- the water pressure resistance in the thickness direction can be evaluated according to JIS L1092:2009 water resistance test method A (low water pressure method) or B method (high water pressure method).
- Examples of materials included in the porous sheet 32 are metals, metal compounds, resins, and composite materials thereof.
- Examples of resins that can be contained in the porous sheet 32 include polyolefins such as polyethylene and polypropylene, polyesters such as polyethylene terephthalate (PET), silicone resins, polycarbonates, polyimides, polyamideimides, polyphenylene sulfides, polyetheretherketones (PEEK), and fluororesin.
- Examples of fluoroplastics are PTFE, tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer (PFA), tetrafluoroethylene-hexafluoropropylene copolymer (FEP) and tetrafluoroethylene-ethylene copolymer (ETFE).
- the resin is not limited to the above examples.
- metals that can be contained in the porous sheet 32 are stainless steel and aluminum.
- metal compounds that can be contained in the porous sheet 32 are metal oxides, metal nitrides, and metal oxynitrides. Note that the metal includes silicon.
- the metal compound may be a silicon compound such as silica.
- the porous sheet 32 may contain a heat-resistant material.
- the porous sheet 32 containing a heat-resistant material is particularly suitable, for example, when performing high-temperature processing such as solder reflow on the laminate 21 and/or the manufactured semiconductor device package 11 .
- refractory materials are metals, metal compounds and refractory resins.
- a heat resistant resin typically has a melting point of 150° C. or higher.
- the melting point of the heat-resistant resin may be 160° C. or higher, 200° C. or higher, 250° C. or higher, 260° C. or higher, or even 300° C. or higher.
- heat-resistant resins are silicone resins, polyimides, polyamideimides, polyphenylene sulfides, PEEK and fluororesins.
- the fluororesin may be PTFE.
- PTFE is particularly excellent in heat resistance.
- metal compounds that are refractory materials are silicon compounds.
- the heat resistant material may be fluororesin.
- the porous sheet 32 may be a stretched porous resin sheet or a porous aggregation sheet of particles.
- the mode of the porous sheet 32 is not limited to the above example.
- the stretched porous resin sheet may be a fluororesin stretched porous sheet or a PTFE stretched porous sheet.
- Expanded porous sheets of PTFE are typically formed by stretching paste extrudates or cast membranes containing PTFE particles. Expanded porous sheets of PTFE are usually composed of fine fibrils of PTFE and may have nodes in which the PTFE is in a state of agglomeration relative to the fibrils.
- the stretched porous sheet is not limited to the above examples.
- Examples of particles contained in the porous aggregated sheet of particles are resin particles, metal particles and metal compound particles. Examples of resins, metals and metal compounds, including refractory materials, are described above. Examples of porous agglomerated sheets are sintered sheets of ultra-high molecular weight polyethylene particles, agglomerated sheets of silica particles (such as fumed silica sheets). However, the porous aggregation sheet is not limited to the above examples.
- the porous sheet 32 typically has communication holes that allow ventilation in the in-plane direction.
- the stretched porous sheet of resin and the porous agglomerated sheet of particles usually have communicating pores.
- the porous sheet 32 may or may not have independent pores.
- the first adhesive layer 3A and the second adhesive layer 3B are typically layers formed from an adhesive composition.
- the adhesive composition may be a pressure-sensitive adhesive composition, in other words, at least one selected from the first adhesive layer 3A and the second adhesive layer 3B is a pressure-sensitive adhesive layer.
- may In a thermosetting or photosensitive adhesive composition for example, an epoxy-based or benzocyclobutene (BCB)-based adhesive composition disclosed in Patent Document 1
- BCB benzocyclobutene
- the pressure-sensitive adhesive composition is particularly suitable for forming a layer in which impregnation of the porous sheet 32 is suppressed.
- the adhesive composition may be an epoxy-based, phenol-based, or other thermosetting adhesive composition, in other words, at least one selected from the first adhesive layer 3A and the second adhesive layer 3B
- One may be a thermosetting adhesive layer.
- the adhesive layer 3 formed from a thermosetting adhesive composition generally has excellent heat resistance.
- the thermosetting adhesive composition may have a storage elastic modulus of 1 ⁇ 10 5 Pa or more at 130 to 170° C., and 5 ⁇ at 250° C. It may have a storage elastic modulus after thermosetting of 10 5 Pa or more.
- a high storage modulus can contribute to suppression of fluidity.
- 130 to 170° C. corresponds to a general temperature that initiates the progress of thermosetting of the thermosetting pressure-sensitive adhesive composition.
- the storage modulus at 130 to 170 ° C. is measured by using a film of the adhesive composition (length 22.5 mm and width 10 mm) as a test piece and using a forced vibration type solid viscoelasticity measuring device, for example from 0 ° C. to 260 ° C. , is defined as the storage elastic modulus at 130 to 170° C., which is evaluated while heating the test piece at a heating rate of 10° C./min.
- the measurement direction (vibration direction) of the test piece shall be the longitudinal direction, and the vibration frequency shall be 1 Hz.
- the storage elastic modulus at 250°C (after curing) can be evaluated by conducting the same test on a test piece after thermally curing the film of the pressure-sensitive adhesive composition.
- adhesive compositions are acrylic-, silicone-, urethane-, epoxy-, and rubber-based adhesive compositions.
- An acrylic or silicone adhesive composition with excellent heat resistance may be selected.
- at least one selected from the first pressure-sensitive adhesive layer 3A and the second pressure-sensitive adhesive layer 3B may be an acrylic pressure-sensitive adhesive layer or a silicone pressure-sensitive adhesive layer.
- the systems of the pressure-sensitive adhesive composition may differ between the first pressure-sensitive adhesive layer 3A and the second pressure-sensitive adhesive layer 3B.
- the acrylic pressure-sensitive adhesive is, for example, the pressure-sensitive adhesive disclosed in JP-A-2005-105212.
- the silicone adhesive is, for example, the adhesive disclosed in JP-A-2003-313516 (including those disclosed as comparative examples).
- the adhesive strength of the adhesive layer 3 is the peeling adhesive strength obtained by conducting the 180° peeling adhesive strength test (method 1) specified in JIS Z0237: 2009, for example, 0.5 to 30 N/20 mm. Yes, 0.7 to 20 N/20 mm, or even 1 to 15 N/20 mm.
- the pressure-sensitive adhesive layer 3 has a rate of decrease in adhesive strength (based on adhesive strength before the test) before and after a heat resistance test at a peak temperature of 250° C. assuming solder reflow is 60% or less, 50% or less, and further 40% or less. may
- the pressure-sensitive adhesive layer 3 that satisfies the above range of reduction rate is particularly excellent in heat resistance.
- the thickness of the pressure-sensitive adhesive layer 3 is, for example, 2 to 150 ⁇ m, may be 5 to 100 ⁇ m, and may be 7 to 90 ⁇ m.
- the thickness of the double-sided adhesive sheet 31 is, for example, 10 to 300 ⁇ m, may be 20 to 200 ⁇ m, and may be 20 to 150 ⁇ m.
- the through-holes 26 can be formed, for example, by shaping the double-sided adhesive sheet 31 .
- An example of shaping is punching.
- the cover sheet 25 may or may not have air permeability in the thickness direction. Even if the cover sheet 25 does not have air permeability in the thickness direction, the air permeability can be ensured by the porous body sheet 32 and the porous body 2 .
- Examples of materials included in the cover sheet 25 are metals, metal compounds, resins, and composite materials thereof.
- Examples of resins, metals, and metal compounds that can be contained in the cover sheet 25 are the same as examples of resins, metals, and metal compounds that can be contained in the porous sheet 32, respectively.
- the cover sheet 25 may contain a heat-resistant material.
- the cover sheet 25 containing a heat-resistant material is particularly suitable, for example, when performing high-temperature processing such as solder reflow on the laminate 21 and/or the manufactured semiconductor device package 11 .
- Examples of heat-resistant materials that can be included in the cover sheet 25 are the same as examples of heat-resistant materials that can be included in the porous sheet 32 .
- the cover sheet 25 may contain at least one selected from a heat-resistant resin material (heat-resistant resin) and glass.
- the heat-resistant resin may be at least one selected from silicone resins, fluororesins and polyimides, and may be polyimides.
- the cover sheet 25 may be optically transparent.
- the optically transparent cover sheet 25 is suitable, for example, for manufacturing optical semiconductor device packages.
- optically transparent means that the total light transmittance in the thickness direction defined in JIS K7375 is 80% or more, preferably 85% or more, more preferably 90% when the thickness is 50 ⁇ m. % or more, more preferably 95% or more.
- the optically transparent cover sheet 25 contains, for example, at least one selected from transparent resin and glass.
- transparent resins are polyimide, polyethylene terephthalate and acrylic resins.
- Cover sheet 25 may comprise a heat resistant material and may be optically transparent.
- An example of a sheet that includes a heat resistant material and is optically transparent is a polyimide sheet.
- the cover sheet 25 may have an optical function.
- Examples of the cover sheet 25 having optical functions include optical sheets such as optical lenses.
- Optical sheets include various optical members such as lenses, retardation films, polarizing films, reflective films, and antireflection films.
- the cover sheet 25 may be a single layer or may have a multi-layer structure of two or more layers.
- the thickness of the cover sheet 25 is, for example, 1 to 2000 ⁇ m.
- the method and conditions for forming the laminate 21 in the lamination step can be selected based on the bonding conditions of the double-sided adhesive sheets 31, for example.
- dicing which is a technique for cutting out individual semiconductor elements from a semiconductor wafer, can be applied to divide the stacked body 21 .
- Dicing is suitable for efficient manufacture of the semiconductor device package 11 .
- the method of dividing the laminate 21 is not limited to the above example. Dicing can be performed by known devices and methods.
- the dividing line 29 can be set according to the shape of the laminate 21 and the semiconductor element package 11 to be manufactured.
- semiconductor element package An example of the semiconductor element package of this embodiment is the semiconductor element package 11 shown in FIG.
- Substrate 12 may have a similar configuration to substrate sheet 22, except that it is split.
- the cover 15 may have the same configuration as the cover sheet 25, except that it is split.
- the porous body 2 can have the same configuration as the porous body sheet 32 except that it is divided.
- the double-sided adhesive part 1 can have the same configuration as the double-sided adhesive sheet 31 except that it is divided.
- Examples of the semiconductor element package 11 are optical semiconductor elements such as CCD, CMOS, infrared (IR) sensor elements, TOF sensor elements, LIDAR sensor elements and laser elements, and acceleration sensor packages.
- Semiconductor device package 11 may be a micro-electro-mechanical system (MEMS) package.
- MEMS micro-electro-mechanical system
- the semiconductor element package 11 is not limited to the above example.
- the semiconductor element package of this embodiment can be manufactured by the manufacturing method of this embodiment.
- the manufacturing method of the semiconductor element package of this embodiment is not limited to the manufacturing method of this embodiment.
- the porosity of the porous sheet was evaluated by the method described above.
- the shape of the test piece was circular with a diameter of 47 mm.
- the lateral water pressure resistance of the porous sheet was evaluated by the method described above.
- the double-sided adhesive tape 61 to be attached to both sides of the cut porous sheet is made of Nitto Denko, No. 585 was used.
- the thickness of the glass plate was 2 mm.
- the shear force of the porous sheet was evaluated by the method described above.
- the double-faced adhesive tape 51 to be attached to both sides of the cut porous sheet is made of Nitto Denko Co., Ltd., No. 585 was used.
- Autograph Ag-X plus (desktop type) manufactured by Shimadzu Corporation was used as a tensile tester.
- a pressing roller having a mass of 2 kg defined in JIS Z0237 was reciprocated once, and the bonding was stabilized by allowing the two to stand at room temperature for 30 minutes. carried out later.
- sample 1 As a porous sheet of sample 1, an expanded porous sheet of PTFE (NTF1122 manufactured by Nitto Denko) was prepared. The prepared porous sheet had air permeability in the in-plane direction. Next, double-sided adhesive tape (manufactured by Nitto Denko, No. 585) was attached to both sides of the prepared porous sheet, respectively, and then punched out to form 25 through-holes each having a square shape of 10 mm square. A double-sided pressure-sensitive adhesive sheet having a square shape of 100 mm square was prepared in which the squares were arranged in a 5 ⁇ 5 array.
- a glass epoxy substrate having a square shape of 100 mm square (R1700 manufactured by Panasonic Electric Works) in which 25 bottomed depressions having a square shape of 10 mm square are provided on one surface.
- the double-sided pressure-sensitive adhesive sheets were bonded together so that the circumference of the through-hole of the double-sided pressure-sensitive adhesive sheet and the circumference of the depression of the substrate were aligned when viewed from the direction perpendicular to the main surface of the substrate.
- a glass sheet (thickness: 500 ⁇ m) having a square shape of 100 mm ⁇ 100 mm is attached to the exposed surface of the double-sided pressure-sensitive adhesive sheet to form a package imitating a semiconductor device package (an internal structure composed of through holes and recesses).
- a laminate was prepared for obtaining a space between the substrate and the glass) by splitting.
- the laminate was subjected to a high-temperature treatment simulating solder reflow, and then the laminate was divided by dicing.
- the dividing line was positioned between each through-hole (and recess) when viewed from the direction perpendicular to the main surface of the substrate.
- DFD6450 manufactured by DISCO was used as a dicing machine.
- P1A861 SDC300N was used for the blade, and the rotation speed of the blade was 30000 rpm and the feed rate was 30 mm/sec. No package damage occurred during solder reflow in the laminated state. In addition, the package could be manufactured without causing breakage of the porous sheet and leakage of water into the package when dividing the laminate by dicing.
- an expanded porous sheet of PTFE was prepared as follows. 100 parts by weight of PTFE fine powder (Fluon PTFE CD123E, manufactured by AGC) and 20 parts by weight of n-dodecane (manufactured by Japan Energy) as a molding aid are uniformly mixed, and the resulting mixture is compressed with a cylinder and then rammed. It was extruded to form a sheet-like mixture. Next, the formed sheet-like mixture was rolled through a pair of metal rolls to a thickness of 0.2 mm, and the forming aid was removed by heating at 150° C. to form a belt-like PTFE sheet molded body.
- PTFE fine powder Fluon PTFE CD123E, manufactured by AGC
- n-dodecane manufactured by Japan Energy
- the formed sheet molding is stretched in the longitudinal direction at a stretching temperature of 120° C. and a stretching ratio of 1.7 times, and then further stretched in the longitudinal direction at a stretching temperature of 375° C. and a stretching ratio of 1.3 times to obtain PTFE.
- the prepared porous sheet had air permeability in the in-plane direction.
- a package imitating a semiconductor element package was manufactured in the same manner as Sample 1, and no damage occurred to the package during solder reflow in the state of the laminate.
- the package could be manufactured without causing breakage of the porous sheet and leakage of water into the package when dividing the laminate by dicing.
- an expanded porous sheet of PTFE was prepared as follows. After uniformly mixing 100 parts by weight of PTFE fine powder (Polyflon F-121, manufactured by Daikin Industries) and 20 parts by weight of n-dodecane (manufactured by Japan Energy) as a molding aid, and compressing the resulting mixture with a cylinder. was ram extruded to form a sheet-like mixture. Next, the formed sheet-like mixture was rolled through a pair of metal rolls to a thickness of 0.8 mm, and the forming aid was removed by heating at 150° C. to form a belt-like PTFE sheet molded body.
- PTFE fine powder Polyflon F-121, manufactured by Daikin Industries
- n-dodecane manufactured by Japan Energy
- the formed sheet molding is stretched in the longitudinal direction at a stretching temperature of 300° C. and a stretching ratio of 3.5 times, and then further stretched in the width direction at a stretching temperature of 150° C. and a stretching ratio of 25 times. was fired at 400° C., which is the temperature of , to obtain an expanded porous sheet of PTFE.
- the prepared porous sheet had air permeability in the in-plane direction.
- porous sheet Using the obtained porous sheet, a package imitating a semiconductor element package was manufactured in the same manner as Sample 1, and no damage occurred to the package during solder reflow in the state of the laminate. However, when the laminate was divided by dicing, although water did not leak into the package, the porous sheet was torn.
- sample 4 As the porous sheet of sample 4, an expanded porous sheet of PTFE (NTF1131 manufactured by Nitto Denko) was prepared. The prepared porous sheet had air permeability in the in-plane direction.
- a semiconductor element package can be manufactured.
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Abstract
Description
複数の半導体素子パッケージの製造方法であって、
前記複数の半導体素子パッケージは、それぞれ、基板と、前記基板上に配置された半導体素子と、前記半導体素子を覆うカバーと、前記基板と前記カバーとの間において前記半導体素子を囲むように配置された多孔体と、を備え、かつ、前記半導体素子が配置された内部空間と外部空間との間は、前記多孔体の内部を介して気体が通過可能であり、
前記製造方法は、
カバーシートと、前記複数の半導体素子が配置された基板シートとを、複数の貫通孔を有すると共に多孔体シートと前記多孔体シートの両面それぞれに予め形成された粘着層とを有する両面粘着シートを介して、前記半導体素子が前記貫通孔内に位置すると共に前記カバーシートにより覆われるように接合して、積層体を得ることと、
前記カバーシート、前記基板シート、及び前記多孔体シートから、それぞれ、複数の前記カバー、複数の前記基板、及び複数の前記多孔体が得られるように、前記積層体を分割することと、を含む、製造方法、
を提供する。
基板と、前記基板上に配置された半導体素子と、前記半導体素子を覆うカバーと、前記基板と前記カバーとの間において前記半導体素子を囲むように配置された多孔体と、を備え、かつ、前記半導体素子が配置された内部空間と外部空間との間は、前記多孔体の内部を介して気体が通過可能であり、
前記基板と前記カバーとは、前記多孔体と前記多孔体の両面それぞれに形成された粘着層とを有する両面粘着部を介して接合されている、
半導体素子パッケージ、
を提供する。
複数の半導体素子パッケージの製造方法であって、
前記複数の半導体素子パッケージは、それぞれ、基板と、前記基板上に配置された半導体素子と、前記半導体素子を覆うカバーと、前記基板と前記カバーとの間において前記半導体素子を囲むように配置された多孔体と、を備え、かつ、前記半導体素子が配置された内部空間と外部空間との間は、前記多孔体の内部を介して気体が通過可能であり、
前記製造方法は、
カバーシートと、前記複数の半導体素子が配置された基板シートとを、複数の貫通孔を有すると共に多孔体シートと前記多孔体シートの両面それぞれに予め形成された粘着層とを有する両面粘着シートを介して、前記半導体素子が前記貫通孔内に位置すると共に前記カバーシートにより覆われるように接合して、積層体を得ることと、
前記カバーシート、前記基板シート、及び前記多孔体シートから、それぞれ、複数の前記カバー、複数の前記基板、及び複数の前記多孔体が得られるように、前記積層体を分割することと、を含む。
基板と、前記基板上に配置された半導体素子と、前記半導体素子を覆うカバーと、前記基板と前記カバーとの間において前記半導体素子を囲むように配置された多孔体と、を備え、かつ、前記半導体素子が配置された内部空間と外部空間との間は、前記多孔体の内部を介して気体が通過可能であり、
前記基板と前記カバーとは、前記多孔体と前記多孔体の両面それぞれに形成された粘着層とを有する両面粘着部を介して接合されている。
本実施形態の製造方法の一例について、図1及び図2A~図2Cを参照しながら説明する。本実施形態の製造方法は、基板12及びカバー15により形成された内部空間14に半導体素子13が配置された半導体素子パッケージ11の製造方法である(図1参照;図1には、本実施形態の製造方法により製造可能な半導体素子パッケージの一例が示されている)。
(基板シート22)
基板シート22は、例えば、シリコン(Si)等の半導体材料、紙やガラス布等を基材とするフェノール樹脂やエポキシ樹脂、セラミック等を含む。基板シート22は、半導体基板シートであってもよい。ただし、基板シート22は上記例に限定されず、公知の半導体素子パッケージが備える基板と同じ材料を含む基板シート22を選択できる。基板シート22は、回路が形成された回路基板シートであってもよい。図2A~図2Cの基板シート22の表面には、分割工程により樹脂リッド18となる樹脂層28が形成されている。図2A~図2Cの樹脂層28には、複数の貫通孔24が形成されている。図2A~図2Cの貫通孔24の形状は、基板シート22の主面に垂直な方向から見て、両面粘着シート31の貫通孔26の形状と同一である。また、上記垂直な方向から見て、貫通孔24の壁面と貫通孔26の壁面とは一致している。ただし、貫通孔24の形状は上記例に限定されず、例えば、製造する半導体素子パッケージ11の構成に応じて選択できる。樹脂層28に含まれる樹脂は、例えば、レジスト樹脂である。レジスト樹脂を含む樹脂層28では、レジスト工程によって貫通孔24を形成できる。ただし、樹脂層28に含まれる樹脂は、上記例に限定されない。基板シート22上には、半導体素子13及び樹脂層28以外の部材、例えば、基板シート22の補強を目的とする金属層等が配置されていてもよいし、配置されていなくてもよい。
半導体素子13の例は、CCD、CMOS、赤外(IR)センサー素子、TOFセンサー素子、LIDARセンサー素子及びレーザー素子等の光半導体素子、加速度センサーである。半導体素子13は、微小電気機械システム(MEMS)であってもよい。ただし、半導体素子13は、上記例に限定されない。
両面粘着シート31は、多孔体シート32、第1の粘着剤層3A及び第2の粘着剤層3Bを備える。多孔体シート32のせん断力は、例えば50N/100mm2以上であり、75N/100mm2以上、100N/100mm2以上、125N/100mm2以上、150N/100mm2以上、170N/100mm2以上、180N/100mm2以上、190N/100mm2以上、200N/100mm2以上、更には210N/100mm2以上であってもよい。せん断力の上限は、例えば350N/100mm2以下である。多孔体シート32が上記範囲のせん断力を有することは、分割工程における多孔体シート32の破損(裂け等)の抑制に寄与しうる。
気孔率(%)=100×[V-(W/D)]/V ・・・(1)
カバーシート25は、厚さ方向の通気性を有していても、厚さ方向の通気性を有さなくてもよい。カバーシート25が厚さ方向の通気性を有さない場合においても、多孔体シート32及び多孔体2により通気性を確保しうる。
積層体21の分割には、例えば、半導体ウェハーから個々の半導体素子を切り出す手法であるダイシングを適用できる。ダイシングは、半導体素子パッケージ11の効率良い製造に適している。ただし、積層体21を分割する方法は、上記例に限定されない。ダイシングは、公知の装置及び手法により実施できる。
本実施形態の半導体素子パッケージの一例は、図1に示された半導体素子パッケージ11である。基板12は、分割されている以外は、基板シート22と同様の構成を有しうる。カバー15は、分割されている以外は、カバーシート25と同様の構成を有しうる。多孔体2は、分割されている以外は、多孔体シート32と同様の構成を有しうる。両面粘着部1は、分割されている以外は、両面粘着シート31と同様の構成を有しうる。
多孔体シートの厚さは、3箇所の測定ポイントについてダイヤル式シックネスゲージ(ミツトヨ製、測定端子径Φ=10mm)により測定した値の平均値として求めた。
多孔体シートの気孔率は、上述の方法により評価した。試験片の形状は直径47mmの円形とした。
多孔体シートの厚さ方向の通気度(ガーレー通気度)は、上述の方法により評価した。
多孔体シートの厚さ方向の耐水圧は、上述の方法により評価した。
多孔体シートの側面耐水圧は、上述の方法により評価した。切り出した多孔体シートの両面に貼り合わせる両面粘着テープ61には、日東電工製、No.585を用いた。ガラス板の厚さは2mmとした。
多孔体シートのせん断力は、上述の方法により評価した。切り出した多孔体シートの両面に貼り合わせる両面粘着テープ51には、日東電工製、No.585を用いた。引張試験機には、島津製作所製、オートグラフAg-X plus(卓上型)を使用した。評価は、多孔体シートと両面粘着テープ51とを貼り合わせた後、JIS Z0237に定められた質量2kgの圧着ローラを一往復させ、更に常温で30分放置することで両者の接合を安定させた後に実施した。
サンプル1の多孔体シートとして、PTFEの延伸多孔質シート(日東電工製、NTF1122)を準備した。準備した多孔体シートは、面内方向の通気性を有していた。次に、準備した多孔体シートの両面に、それぞれ、両面粘着テープ(日東電工製、No.585)を貼り合わせた後、これを打ち抜いて、10mm□の正方形の形状を持つ25個の貫通孔が5×5の配列で形成された、100mm□の正方形の形状を有する両面粘着シートを作製した。次に、10mm□の正方形の形状を有する有底の窪み25個が一方の面に設けられた、100mm□の正方形の形状を有するガラスエポキシ基板(パナソニック電工製、R1700)における当該面に、基板の主面に垂直な方向から見て両面粘着シートの貫通孔の周と基板の窪みの周とが一致するように、両面粘着シートを貼り合わせた。次に、両面粘着シートの露出面に対して、100mm□の正方形の形状を有するガラスシート(厚さ500μm)を貼り合わせて、半導体素子パッケージを模したパッケージ(貫通孔及び窪みにより構成される内部空間を基板とガラスとの間に有する)を分割によって得るための積層体を作製した。次に、積層体に対してハンダリフローを模した高温処理を実施した後、ダイシングにより積層体を分割した。分割線は、基板の主面に垂直な方向から見て、各々の貫通孔(及び窪み)の間の位置とした。ダイシング装置には、DISCO製、DFD6450を使用した。ブレードにはP1A861 SDC300Nを使用し、ブレードの回転速度は30000rpm、送り速度は30mm/秒とした。積層体の状態におけるハンダリフローの際にはパッケージの破損は生じなかった。また、積層体をダイシングにより分割する際に多孔体シートの破損及びパッケージ内への水漏れは起きることなく、パッケージを製造できた。
サンプル2の多孔体シートとして、PTFEの延伸多孔質シートを以下のように準備した。PTFE微粉末(AGC製、フルオンPTFE CD123E)100重量部と、成形助剤としてn-ドデカン(ジャパンエナジー製)20重量部とを均一に混合し、得られた混合物をシリンダーにより圧縮した後、ラム押出成形して、シート状の混合物を形成した。次に、形成したシート状の混合物を一対の金属ロールを通して厚さ0.2mmに圧延し、更に150℃の加熱により成形助剤を除去して、帯状のPTFEシート成形体を形成した。次に、形成したシート成形体を、延伸温度120℃、延伸倍率1.7倍で長手方向に延伸した後、延伸温度375℃、延伸倍率1.3倍で長手方向に更に延伸して、PTFEの延伸多孔質シートを得た。準備した多孔体シートは、面内方向の通気性を有していた。
サンプル3の多孔体シートとして、PTFEの延伸多孔質シートを以下のように準備した。PTFE微粉末(ダイキン工業製、ポリフロンF-121)100重量部と、成形助剤としてn-ドデカン(ジャパンエナジー製)20重量部とを均一に混合し、得られた混合物をシリンダーにより圧縮した後、ラム押出成形して、シート状の混合物を形成した。次に、形成したシート状の混合物を一対の金属ロールを通して厚さ0.8mmに圧延し、更に150℃の加熱により成形助剤を除去して、帯状のPTFEシート成形体を形成した。次に、形成したシート成形体を、延伸温度300℃、延伸倍率3.5倍で長手方向に延伸した後、延伸温度150℃、延伸倍率25倍で幅方向に更に延伸し、PTFEの融点以上の温度である400℃で焼成して、PTFEの延伸多孔質シートを得た。準備した多孔体シートは、面内方向の通気性を有していた。
サンプル4の多孔体シートとして、PTFEの延伸多孔質シート(日東電工製、NTF1131)を準備した。準備した多孔体シートは、面内方向の通気性を有していた。
Claims (13)
- 複数の半導体素子パッケージの製造方法であって、
前記複数の半導体素子パッケージは、それぞれ、基板と、前記基板上に配置された半導体素子と、前記半導体素子を覆うカバーと、前記基板と前記カバーとの間において前記半導体素子を囲むように配置された多孔体と、を備え、かつ、前記半導体素子が配置された内部空間と外部空間との間は、前記多孔体の内部を介して気体が通過可能であり、
前記製造方法は、
カバーシートと、前記複数の半導体素子が配置された基板シートとを、複数の貫通孔を有すると共に多孔体シートと前記多孔体シートの両面それぞれに予め形成された粘着層とを有する両面粘着シートを介して、前記半導体素子が前記貫通孔内に位置すると共に前記カバーシートにより覆われるように接合して、積層体を得ることと、
前記カバーシート、前記基板シート、及び前記多孔体シートから、それぞれ、複数の前記カバー、複数の前記基板、及び複数の前記多孔体が得られるように、前記積層体を分割することと、を含む、製造方法。 - 前記多孔体シートのせん断力が50N/100mm2以上である、請求項1に記載の製造方法。
- 前記多孔体シートの側面耐水圧が400kPa以上である、請求項1に記載の製造方法。
- 前記多孔体シートは耐熱性材料を含む、請求項1に記載の製造方法。
- 前記耐熱性材料はフッ素樹脂である、請求項4に記載の製造方法。
- 前記多孔体シートは、フッ素樹脂の延伸多孔質シートである、請求項1に記載の製造方法。
- 前記カバーシートは厚さ方向の通気性を有さない、請求項1に記載の製造方法。
- 前記カバーシートは光学的に透明である、請求項1に記載の製造方法。
- 前記カバーシートは、耐熱性樹脂及びガラスから選ばれる少なくとも1種を含む、請求項1に記載の製造方法。
- 前記カバーシートは光学レンズを含む、請求項1に記載の製造方法。
- 基板と、前記基板上に配置された半導体素子と、前記半導体素子を覆うカバーと、前記基板と前記カバーとの間において前記半導体素子を囲むように配置された多孔体と、を備え、かつ、前記半導体素子が配置された内部空間と外部空間との間は、前記多孔体の内部を介して気体が通過可能であり、
前記基板と前記カバーとは、前記多孔体と前記多孔体の両面それぞれに形成された粘着層とを有する両面粘着部を介して接合されている、
半導体素子パッケージ。 - 前記多孔体のせん断力が50N/100mm2以上である、請求項11に記載の半導体素子パッケージ。
- 前記多孔体の側面耐水圧が400kPa以上である、請求項11に記載の半導体素子パッケージ。
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020247008607A KR20240052777A (ko) | 2021-08-31 | 2022-08-31 | 반도체 소자 패키지의 제조 방법 및 반도체 소자 패키지 |
| CN202280058779.5A CN117897806A (zh) | 2021-08-31 | 2022-08-31 | 半导体元件封装的制造方法和半导体元件封装 |
| JP2023545666A JPWO2023033090A1 (ja) | 2021-08-31 | 2022-08-31 |
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| WO2023033090A1 true WO2023033090A1 (ja) | 2023-03-09 |
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| PCT/JP2022/032886 Ceased WO2023033090A1 (ja) | 2021-08-31 | 2022-08-31 | 半導体素子パッケージの製造方法及び半導体素子パッケージ |
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| JP (1) | JPWO2023033090A1 (ja) |
| KR (1) | KR20240052777A (ja) |
| CN (1) | CN117897806A (ja) |
| TW (1) | TW202312295A (ja) |
| WO (1) | WO2023033090A1 (ja) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1064927A (ja) * | 1996-08-14 | 1998-03-06 | Japan Gore Tex Inc | Icパッケージ接着用シート及びicパッケージ |
| JP2006005025A (ja) * | 2004-06-15 | 2006-01-05 | Sharp Corp | 蓋部を備えた半導体ウェハの製造方法及び半導体装置の製造方法 |
| JP2006344903A (ja) * | 2005-06-10 | 2006-12-21 | Fujifilm Holdings Corp | 半導体モジュール |
| JP2007157792A (ja) * | 2005-11-30 | 2007-06-21 | Matsushita Electric Works Ltd | ウェハースケール半導体パッケージの製造方法 |
| JP2009021381A (ja) * | 2007-07-12 | 2009-01-29 | Sumitomo Bakelite Co Ltd | 受光装置および受光装置の製造方法 |
| JP2012169564A (ja) * | 2011-02-16 | 2012-09-06 | Omron Corp | ウエハレベルパッケージ、チップサイズパッケージデバイス及びウエハレベルパッケージの製造方法 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009043893A (ja) | 2007-08-08 | 2009-02-26 | Fujikura Ltd | 半導体パッケージ及びその製造方法 |
-
2022
- 2022-08-31 WO PCT/JP2022/032886 patent/WO2023033090A1/ja not_active Ceased
- 2022-08-31 KR KR1020247008607A patent/KR20240052777A/ko active Pending
- 2022-08-31 CN CN202280058779.5A patent/CN117897806A/zh active Pending
- 2022-08-31 JP JP2023545666A patent/JPWO2023033090A1/ja active Pending
- 2022-08-31 TW TW111133027A patent/TW202312295A/zh unknown
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1064927A (ja) * | 1996-08-14 | 1998-03-06 | Japan Gore Tex Inc | Icパッケージ接着用シート及びicパッケージ |
| JP2006005025A (ja) * | 2004-06-15 | 2006-01-05 | Sharp Corp | 蓋部を備えた半導体ウェハの製造方法及び半導体装置の製造方法 |
| JP2006344903A (ja) * | 2005-06-10 | 2006-12-21 | Fujifilm Holdings Corp | 半導体モジュール |
| JP2007157792A (ja) * | 2005-11-30 | 2007-06-21 | Matsushita Electric Works Ltd | ウェハースケール半導体パッケージの製造方法 |
| JP2009021381A (ja) * | 2007-07-12 | 2009-01-29 | Sumitomo Bakelite Co Ltd | 受光装置および受光装置の製造方法 |
| JP2012169564A (ja) * | 2011-02-16 | 2012-09-06 | Omron Corp | ウエハレベルパッケージ、チップサイズパッケージデバイス及びウエハレベルパッケージの製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| TW202312295A (zh) | 2023-03-16 |
| JPWO2023033090A1 (ja) | 2023-03-09 |
| CN117897806A (zh) | 2024-04-16 |
| KR20240052777A (ko) | 2024-04-23 |
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