WO2022064729A1 - 配線形成方法及び転写型の製造方法 - Google Patents
配線形成方法及び転写型の製造方法 Download PDFInfo
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- WO2022064729A1 WO2022064729A1 PCT/JP2021/000514 JP2021000514W WO2022064729A1 WO 2022064729 A1 WO2022064729 A1 WO 2022064729A1 JP 2021000514 W JP2021000514 W JP 2021000514W WO 2022064729 A1 WO2022064729 A1 WO 2022064729A1
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- wiring
- curing
- transfer type
- substrate
- curing treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/26—Printing on other surfaces than ordinary paper
- B41M1/34—Printing on other surfaces than ordinary paper on glass or ceramic surfaces
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/0002—Lithographic processes using patterning methods other than those involving the exposure to radiation, e.g. by stamping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
- B41C1/00—Forme preparation
- B41C1/08—Forme preparation by embossing, e.g. with a typewriter
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/10—Intaglio printing ; Gravure printing
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
- H05K3/107—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern by filling grooves in the support with conductive material
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
- H05K3/12—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using thick film techniques, e.g. printing techniques to apply the conductive material or similar techniques for applying conductive paste or ink patterns
- H05K3/1275—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using thick film techniques, e.g. printing techniques to apply the conductive material or similar techniques for applying conductive paste or ink patterns by other printing techniques, e.g. letterpress printing, intaglio printing, lithographic printing, offset printing
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
- H05K3/12—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using thick film techniques, e.g. printing techniques to apply the conductive material or similar techniques for applying conductive paste or ink patterns
- H05K3/1283—After-treatment of the printed patterns, e.g. sintering or curing methods
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
- H05K3/20—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern by affixing prefabricated conductor pattern
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
- H05K3/20—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern by affixing prefabricated conductor pattern
- H05K3/207—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern by affixing prefabricated conductor pattern using a prefabricated paste pattern, ink pattern or powder pattern
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- H10W72/071—
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/26—Printing on other surfaces than ordinary paper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/26—Printing on other surfaces than ordinary paper
- B41M1/30—Printing on other surfaces than ordinary paper on organic plastics, horn or similar materials
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/09—Use of materials for the conductive, e.g. metallic pattern
- H05K1/092—Dispersed materials, e.g. conductive pastes or inks
- H05K1/095—Dispersed materials, e.g. conductive pastes or inks for polymer thick films, i.e. having a permanent organic polymeric binder
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/11—Printed elements for providing electric connections to or between printed circuits
- H05K1/119—Details of rigid insulating substrates therefor, e.g. three-dimensional details
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/01—Dielectrics
- H05K2201/0104—Properties and characteristics in general
- H05K2201/0133—Elastomeric or compliant polymer
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09009—Substrate related
- H05K2201/09036—Recesses or grooves in insulating substrate
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- H10W70/098—
Definitions
- the present invention relates to a wiring forming method for forming wiring of a predetermined pattern on a substrate, and particularly to a wiring forming method suitable for forming wiring on the surface of a substrate having irregularities.
- Wiring formation using conductive paste can be performed at a lower temperature than conventional wiring formation using copper wiring or metal such as solder, so wiring formation on film such as plastic, which was not possible until now, can be performed. Chip mounting is possible.
- wiring formation using this conductive paste is generally performed by using a printing method.
- the printing method there is a limit to the minimum line width of the wiring that can be formed.
- the wiring printing having a width of about 30 ⁇ m is the limit.
- a paste or ink-like conductive member is used in the printing method, it does not cure immediately after printing on the substrate, so if thick wiring (wiring with a high aspect ratio) is formed, the wiring will bleed and the dimensions will be accurate. And the flow due to the constant viscosity of the paste or ink-like conductive member causes shape sagging. Therefore, at present, the upper limit of the aspect ratio of the wiring that can be formed by the printing method is about 0.5 at most.
- the recess of a mold having a recess formed in a pattern similar to the wiring pattern formed on the substrate is filled with a conductive paste, and the recess is filled with the conductive paste.
- a printing plate in Japanese Patent Laid-Open No. 2016-58664
- the conductive paste filled in the recesses of this mold is transferred to the substrate, and a predetermined pattern of wiring is formed on the substrate. ..
- the substrate has irregularities (steps) such that another wiring is already formed on the wiring forming surface.
- the transfer type 14 cannot be properly grounded (adhered) to the surface of the substrate 11 due to the unevenness, whereby the transfer-formed wiring 13 adheres particularly in the vicinity of the wiring step formed in advance on the substrate 11. There will be a problem that it will be in a raised state without doing so.
- the present invention has been made in view of such a current situation, and is an epoch-making unprecedented invention that enables transfer wiring formation by a transfer type without performing a flattening process on a substrate having an uneven surface.
- a wiring forming method is provided.
- a conductive member 2 is filled in the recess 4a of the transfer mold 4 in which the recess 4a having a predetermined pattern is formed, and the transfer mold 4 filled with the conductive member 2 is superposed on the surface of the substrate 1 having irregularities.
- the present invention relates to a wiring forming method characterized by using a soft material of 70.
- the unevenness relates to a wiring forming method provided on the surface of the substrate 1 and having a wiring step having an aspect ratio of 1 or more.
- the transfer type 4 is made of a resin material in which a curing agent is mixed with a main agent containing a silicone-based polymer compound as a main component. It concerns the method.
- the transfer type 4 is made of a resin material in which a curing agent is mixed with a main agent containing a silicone-based polymer compound as a main component. It concerns the method.
- the resin material relates to a wiring forming method in which the main agent and the curing agent are mixed at a mixing ratio of about 5: 1. Is.
- the resin material relates to a wiring forming method in which the main agent and the curing agent are mixed at a mixing ratio of about 5: 1. Is.
- the transfer type 4 is pressed by a support substrate after the resin material is provided on an original plate on which a convex portion of a predetermined pattern is formed. It relates to a wiring forming method characterized by being obtained by molding and hardening treatment.
- the wiring forming method according to claim 8 relates to a wiring forming method characterized in that the room temperature curing treatment is performed over 24 hours or more.
- the curing treatment is carried out at room temperature for 48 hours in a space set at 15 ° C to 30 ° C, and then at 200 ° C to 250 ° C, 30.
- the present invention relates to a wiring forming method, which comprises performing the heat curing treatment for a portion.
- the curing treatment is carried out at room temperature for 48 hours in a space set at 15 ° C to 30 ° C, and then at 200 ° C to 250 ° C, 30.
- the present invention relates to a wiring forming method, which comprises performing the heat curing treatment for a portion.
- a transfer type manufacturing method obtained by providing a resin material on an original plate on which a convex portion of a predetermined pattern is formed, then pressure-molding on a support substrate, and performing a curing treatment.
- the resin material is a transfer type manufacturing method.
- a method for producing a transfer type characterized in that a curing agent is mixed with a main agent containing a silicone-based polymer compound as a main component to obtain a soft transfer type 4 having a durometer A hardness of 40 to 70. It is related.
- the resin material is a transfer type manufacturing method in which the main agent and the curing agent are mixed at a mixing ratio of about 5: 1. It is related to.
- the curing treatment is a room temperature curing treatment for curing at room temperature and a heat curing treatment for curing by heating at a temperature of 200 ° C. or higher. It relates to a transfer type manufacturing method characterized by the above.
- the curing treatment is carried out at room temperature for 48 hours in a space set at 15 ° C to 30 ° C, followed by 200 ° C to 250 ° C.
- the present invention relates to a method for producing a transfer type, which comprises performing the heat curing treatment for 30 minutes.
- the curing treatment is carried out at room temperature for 48 hours in a space set at 15 ° C to 30 ° C, followed by 200 ° C to 250 ° C.
- the present invention relates to a method for producing a transfer type, which comprises performing the heat curing treatment for 30 minutes.
- the present invention is as described above, it is possible to form a transfer wiring using a transfer mold even on a substrate having an uneven surface.
- the present invention eliminates the need for the flattening process which has been required when using the transfer type, and the man-hours for that amount are reduced. It is reduced, and the effect of improving the throughput and reducing the cost can be obtained.
- the conductive member 2 is filled in the concave portion 4a of a predetermined pattern formed in the transfer mold 4, and the transfer mold 4 in which the conductive member 2 is filled in the concave portion 4a is superposed on the surface of the substrate 1 and pressure-welded.
- the transfer mold 4 is deformed following the unevenness of the substrate surface, and the transfer mold 4 is in close contact with the substrate surface.
- the transfer-formed wiring portion 3 is in a raised state (a state in which it is not grounded to the substrate 1) even in the vicinity of the wiring step formed in advance on the substrate 1, so that the substrate has an uneven surface.
- the present invention eliminates the need for the flattening process which has been required when using the transfer type, and the man-hours for that amount are reduced. It is reduced, and the effect of improving the throughput and reducing the cost can be obtained.
- the concave portion 4 of the transfer mold 4 in which the concave portion 4a having a predetermined pattern is formed is filled with the conductive member 2, and the transfer mold 4 filled with the conductive member 2 is filled with the concave surface of the substrate 1 having irregularities.
- This is a wiring forming method in which the conductive member 2 is superposed on the surface of the substrate 1 and cured in the recess 4a, transferred to the surface of the substrate 1, and the wiring portion 3 is formed on the surface of the substrate 1 by the conductive member 2. .. That is, in this embodiment, wiring is already formed on the substrate 1, and the wiring portion 3 is transferred and formed on the substrate 1 having irregularities (steps) on the surface by the imprint method using the transfer mold 4. It is a forming method.
- the transfer mold 4 of this embodiment is generally obtained by dropping a resin material on a master plate on which a convex portion of a predetermined pattern is formed, pressurizing it with a support substrate, molding it, and then performing a curing treatment. It is a soft transfer type 4 called a soft replica mold.
- the transfer type 4 of the present embodiment is made of a silicone resin obtained by curing a resin material obtained by mixing a main agent containing a silicone-based polymer compound as a main component and a curing agent, and the hardness is durometer A hardness. It is about 40 to 70.
- the recess 4a formed in the transfer mold 4 is formed in a tapered recess (forward taper) so that the shape of the wiring portion 3 transferred and formed on the substrate 1 is a forward taper shape.
- the transfer type 4 of this embodiment is manufactured as follows.
- a resin material obtained by mixing PDMA (polydimethylsiloxane) as a main agent and a curing agent at a mixing ratio of 5: 1 is dropped onto an original plate on which convex portions of a predetermined pattern are formed, and pressure-molded on a support substrate.
- PDMA polydimethylsiloxane
- the mixing ratio of the main agent and the curing agent is conventionally set to about 10: 1, but in this embodiment, the ratio of the curing agent is large (as described above). About twice). This is to reduce the adhesiveness (tackiness) of the surface of the transfer mold 4 after curing and to make it easier to scrape the conductive member 2 on the surface of the transfer mold 4.
- a room temperature curing treatment is performed in which the pressure-molded resin material is cured at room temperature (15 ° C. to 30 ° C., preferably 25 ° C.) for 24 hours or longer, preferably 48 hours or longer.
- the normal temperature curing treatment conditions of this example are 25 ° C. and 48 hours.
- the transfer mold 4 cured at room temperature is removed from the original plate, and the removed transfer mold 4 is removed at 200 ° C. to 300 ° C., preferably 250 ° C. for about 30 minutes using a heating device (for example, a hot plate or the like).
- the resin material is main-cured by performing a heat-curing treatment to complete the process.
- the hardness of the transfer type 4 formed by the above manufacturing method is about 60 in terms of the durometer A hardness.
- the resin material containing PDMA as the main component conventionally, the resin material dropped on the original plate is pressure-molded on a support substrate and then heat-cured at 100 ° C. to 150 ° C. for 10 minutes to 35 minutes.
- the transfer mold was cured to a predetermined hardness by this heat curing treatment, but in this conventional heat curing treatment, the lower limit side is due to the difference in the coefficient of thermal expansion between the transfer mold and the original plate (main material, glass).
- pattern shrinkage of more than 2% occurs.
- the pattern shrinkage can be suppressed to about 0.5% by performing the curing treatment in two stages of the room temperature curing treatment and the heat curing treatment as described above.
- the pattern shrinkage after the room temperature curing treatment at 25 ° C. for 48 hours is about 0.1%
- the pattern shrinkage after the heat curing treatment at 250 ° C. for 30 minutes is 0.6. %.
- the conductive member 2 used in this embodiment is an active ray-curable resin-containing conductive paste in which the active ray-curable resin is contained in the conductive paste.
- the conductive member 2 is not cured by heating, but is cured by, for example, activated light rays such as ultraviolet rays.
- the conductive paste includes Ag paste (including nanopaste), Cu paste (including nanopaste), Au paste (including nanopaste), Pt paste (including nanopaste), Pd paste (including nanopaste), and the like. It is possible to select from Ru paste (including nanopaste) and C paste (including nanopaste), and this example uses Ag paste.
- the active ray-curable resin contained in this conductive paste is an ultraviolet curable resin, and is contained in the conductive paste so that the volume content in the conductive member 2 is 20% to 40%. There is.
- the conductive member 2 of this embodiment is an ultraviolet curable resin-containing Ag paste in which the volume ratio of the Ag base and the ultraviolet curable resin is set to 6: 4 to 8: 2.
- the concave portion 4 of the transfer mold 4 in which the concave portion 4a having a predetermined pattern is formed is filled with the conductive member 2, and the transfer mold 4 is filled with the conductive member 2.
- the conductive member 2 in the recess 4a is transferred to the surface of the substrate 1, and the conductive member 2 forms the wiring portion 3 on the surface of the substrate 1.
- the conductive member filling processing step of filling the concave portion 4a of the transfer mold 4 with the conductive member 2 and the transfer mold 4 filled with the conductive member 2 are mounted on the substrate 1.
- the transfer mold 4 is set so that the opening of the recess 4a faces upward, the conductive member 2 is filled in the recess 4a from above, and then the transfer mold 4 overflows from the surface or the recess 4a.
- This is a step of scraping off the protruding conductive member 2 using a scraper (squeegee) and filling the recess 4a with the conductive member 2.
- the transfer type 4 used in this example has a larger mixing ratio of the curing agent to the main agent than the conventional one, and reduces the adhesiveness (tackiness) of the surface of the transfer type 4.
- the unnecessary conductive member 2 on the surface of the transfer mold 4 can be smoothly scraped off, and the unnecessary conductive member 2 remains on the surface of the transfer mold 4. Will be prevented as much as possible.
- the transfer type superposition processing step is a step of superimposing the transfer type 4 in which the concave portion 4a is filled with the conductive member 2 on the substrate 1 and pressing the transfer type 4 against the substrate 1 by pressurization.
- the soft transfer type 4 (soft replica mold) having a durometer A hardness of 60 is used as the transfer type 4, when the transfer type 4 is pressed against the substrate 1 as shown in FIG. 1, the transfer type 4 is used. 4 is elastically deformed following the unevenness of the substrate 1, specifically, the step formed by the wiring already formed on the substrate 1, and the surface of the transfer mold 4 (the opening side of the recess 4a) is the substrate. It is in a state of being grounded (adhered) to the surface of 1 and the upper surface of the wiring already formed on the substrate 1.
- the conductive member curing treatment step is a step of curing the conductive member 2 filled in the recess 4a of the transfer mold 4, and in this embodiment, the conductive member 2 is cured by ultraviolet irradiation.
- ultraviolet irradiation is applied from the bottom side of the concave portion 4a of the transfer mold 4 to cure the contact interface portion of the conductive member 2 filled in the concave portion 4a of the transfer mold 4 with the inner surface of the concave portion, thereby conducting conductivity.
- the releasability of the member 2 with respect to the transfer mold 4 is improved.
- the processing time can be significantly shortened as compared with the case where the conductive member 2 is cured by heating.
- the conductive member curing treatment step may be performed before the transfer mold 4 is superposed on the substrate 1, that is, before the transfer mold superposition treatment step.
- the transfer mold 4 overlapped with the substrate 1 is separated from the substrate 1, the conductive member 2 in the recess 4a of the transfer mold 4 is transferred to the substrate 1, and the transfer mold 4 is predetermined on the substrate 1.
- the wiring portion 3 of the pattern is formed.
- the transfer type 4 (soft replica mold) having a durometer A hardness of 60 is used as the transfer type 4, the transfer type is used for a substrate having an uneven surface without flattening treatment. It is possible to form the transfer wiring (wiring formation by the imprint method).
- the transfer type 4 used in this embodiment has lower surface adhesiveness (tackiness) than the conventional transfer type, the workability of scraping the conductive member 2 with a scraper (squeegee) is improved. improves.
- the transfer type 4 used in this example is cured by a two-step curing treatment of a room temperature curing treatment and a heat curing treatment, the pattern shrinkage can be suppressed to about 0.5%.
- an ultraviolet curable resin-containing Ag paste in which an ultraviolet curable resin is contained in an Ag paste is used as the conductive member 2, and the conductive member 2 is cured by irradiation with ultraviolet rays, so that the thermosetting resin is cured.
- the conductive member 2 is cured by irradiation with ultraviolet rays, so that the thermosetting resin is cured.
- the conductive member 2 using Ag paste whose average particle diameter is set to 1/5 to 1/10 of the minimum line width of the wiring portion 3 is used, it is formed on the substrate 1.
- the shape of the wiring portion 3 becomes a smooth shape with few irregularities, whereby the local electric field concentration between the wiring portions 3 is relaxed, and the long-term reliability of the wiring portion 3 is improved.
- the shape of the recess 4a of the transfer mold 4 is formed in a tapered shape (forward taper shape), the shape of the wiring portion 3 transferred and formed on the substrate 1 becomes a forward taper shape, and the transfer is performed.
- the mold releasability of the transfer mold 4 of the conductive member 2 at the time from the recess 4a is improved, the detachment is smoothly performed, and the yield in the conductive member transfer processing step is improved.
- this embodiment is an epoch-making wiring forming method which has never been seen before and has an epoch-making effect as described above.
- the present invention is not limited to the present embodiment, and the specific configuration of each constituent requirement can be appropriately designed.
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Manufacturing Of Printed Wiring (AREA)
- Manufacture Or Reproduction Of Printing Formes (AREA)
- Printing Methods (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
Claims (17)
- 所定パターンの凹部が形成された転写型の該凹部に導電性部材を充填し、この導電性部材が充填された前記転写型を凹凸を有する基板の表面に重ね合わせ、前記導電性部材を前記基板の表面に転写して該導電性部材により該基板の表面上に配線部を形成する方法であって、前記転写型にデュロメータA硬度が40~70の軟質性のものを用いることを特徴とする配線形成方法。
- 請求項1記載の配線形成方法において、前記凹凸は、前記基板の表面に設けられたアスペクト比が1以上の配線段差であることを特徴とする配線形成方法。
- 請求項1記載の配線形成方法において、前記転写型は、シリコーン系高分子化合物を主成分とする主剤に硬化剤が混合された樹脂材料からなるものであることを特徴とする配線形成方法。
- 請求項2記載の配線形成方法において、前記転写型は、シリコーン系高分子化合物を主成分とする主剤に硬化剤が混合された樹脂材料からなるものであることを特徴とする配線形成方法。
- 請求項3記載の配線形成方法において、前記樹脂材料は、前記主剤と前記硬化剤とがほぼ5:1の混合比で混合されたものであることを特徴とする配線形成方法。
- 請求項4記載の配線形成方法において、前記樹脂材料は、前記主剤と前記硬化剤とがほぼ5:1の混合比で混合されたものであることを特徴とする配線形成方法。
- 請求項3~6いずれか1項に記載の配線形成方法において、前記転写型は、所定パターンの凸部が形成された原版上に前記樹脂材料を設けた後、支持基板で加圧成形し、硬化処理を行うことで得られるものであることを特徴とする配線形成方法。
- 請求項7記載の配線形成方法において、前記硬化処理は、常温で硬化させる常温硬化処理及び200℃以上の温度で加熱して硬化させる加熱硬化処理であることを特徴とする配線形成方法。
- 請求項8記載の配線形成方法において、前記常温硬化処理は24時間以上かけて行うことを特徴とする配線形成方法。
- 請求項8記載の配線形成方法において、前記硬化処理は、15℃~30℃に設定された空間内で48時間かけて前記常温硬化処理を行い、続いて、200℃~250℃、30分の前記加熱硬化処理を行うことを特徴とする配線形成方法。
- 請求項9記載の配線形成方法において、前記硬化処理は、15℃~30℃に設定された空間内で48時間かけて前記常温硬化処理を行い、続いて、200℃~250℃、30分の前記加熱硬化処理を行うことを特徴とする配線形成方法。
- 所定パターンの凸部が形成された原版上に樹脂材料を設けた後、支持基板で加圧成形し、硬化処理を行うことで得られる転写型の製造方法であって、前記樹脂材料は、シリコーン系高分子化合物を主成分とする主剤に硬化剤が混合され、デュロメータA硬度が40~70の軟質性の転写型が得られるものであることを特徴とする転写型の製造方法。
- 請求項12記載の転写型の製造方法において、樹脂材料は、前記主剤と前記硬化剤とがほぼ5:1の混合比で混合されたものであることを特徴とする転写型の製造方法。
- 請求項12,13いずれか1項に記載の転写型の製造方法において、前記硬化処理は、常温で硬化させる常温硬化処理及び200℃以上の温度で加熱して硬化させる加熱硬化処理であることを特徴とする転写型の製造方法。
- 請求項14記載の転写型の製造方法において、前記常温硬化処理は24時間以上かけて行うことを特徴とする転写型の製造方法。
- 請求項14記載の転写型の製造方法において、前記硬化処理は、15℃~30℃に設定された空間内で48時間かけて前記常温硬化処理を行い、続いて、200℃~250℃、30分の前記加熱硬化処理を行うことを特徴とする転写型の製造方法。
- 請求項15記載の転写型の製造方法において、前記硬化処理は、15℃~30℃に設定された空間内で48時間かけて前記常温硬化処理を行い、続いて、200℃~250℃、30分の前記加熱硬化処理を行うことを特徴とする転写型の製造方法。
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| KR1020237005121A KR102825660B1 (ko) | 2020-09-25 | 2021-01-08 | 배선 형성 방법 및 전사 형틀의 제조 방법 |
| CN202180063636.9A CN116157273B (zh) | 2020-09-25 | 2021-01-08 | 布线形成方法及转印模的制造方法 |
| EP21871866.6A EP4219165A4 (en) | 2020-09-25 | 2021-01-08 | WIRING FORMING METHOD, AND TRANSFER MOLD MANUFACTURING METHOD |
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| EP4219165A1 (en) | 2023-08-02 |
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| TWI864218B (zh) | 2024-12-01 |
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