Adhesive tape for electronic parts

A technology for electronic components and tapes, applied in electrical components, electrical solid devices, circuits, etc., can solve the problem of high operating temperature for attachment, achieve sufficient heat resistance, improve operability and yield.

CN101063026BActive Publication Date: 2011-02-09TOMOEGAWA PAPER CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2011-02-09

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Abstract

The invention provides an adhesive tape for electronic unit which provided a thermosetting adhesive layer in at least one insulation surface, When shearing adhesive strength at the time of 160 degree heating to a copper plate of said thermosetting adhesive layer measures by a part for speed-of-testing / of 20 mm, above 20 N / cm2, and adhesive tape for electronic parts, wherein ratios (a / b) of speed-of-testing shearing adhesive strength for / of 20 mm (a) and shearing adhesive strength for 50-mm / (b) are 0.8-1.0.
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Description

technical field

[0001] The present invention relates to an adhesive tape for electronic components used in an assembly process of a semiconductor device for adhering components constituting a semiconductor device, such as a semiconductor chip, a chip mounting substrate, a lead frame, a heat sink, etc. . Background technique

[0002] Examples of the adhesive tape used in resin-molded semiconductor devices include lead frame fixing tape, TAB tape, die attach tape, and the like.

[0003] Hitherto, for the above-mentioned applications, thermosetting adhesives in which thermosetting resins represented by epoxy resins and NBR (acrylonitrile-butadiene copolymer) are mixed are widely used. It is made of a flexible thermoplastic resin. Currently, there are products in which adhesives are laminated on one or both sides of a film such as plastic as needed, or products in which an adhesive sheet is formed on a release film, etc. products.

[0004] For example, the adhesive tape for f...

Examples

Embodiment 1

[0034] (Production of tapes for electronic components)

[0035] On one side of a polyimide film (manufactured by Toray Dupont (DUPONT), trade name KAPTON200EN) with a thickness of 50 μm, the following adhesive paint is coated, and the thickness of the thermosetting adhesive layer after drying is Thickness was 20 micrometers, and it dried in the hot-air circulation type oven set at 160 degreeC after that, and obtained the adhesive tape for electronic components of this invention.

[0036] (composition of adhesive paint)

[0037] 100 parts by weight of acrylonitrile-butadiene copolymer

[0038] (Mooney viscosity is 53M 1+4 100°C, acrylonitrile content 40% by weight)

[0039] 75 parts by weight of dicyclopentadiene type epoxy resin

[0040] (manufactured by Dainippon Ink Chemical Industry Co., Ltd., trade name: EPICLON HP7200)

[0041] 20 parts by weight of novolak resin

[0042] (manufactured by Qunyei Chemical Co., trade name: RESITOP PSM-4324)

[0043] 3,3',5,5'-tetraet...

Embodiment 2

[0047] Except having changed the adhesive paint into the following composition, it carried out similarly to Example 1, and obtained the adhesive tape for electronic components of this invention.

[0048] (composition of adhesive paint)

[0049] 100 parts by weight of acrylonitrile-butadiene copolymer

[0050] (Mooney viscosity is 53M 1+4 100°C, acrylonitrile content 40% by weight)

[0051] 70 parts by weight of biphenyl epoxy resin

[0052] (manufactured by Japan Epoxy Co., Ltd., trade name: EPIKOTE YX4000H)

[0053] 3,3',4,4'-benzophenone tetracarboxylic anhydride 30 parts by weight

[0054] 400 parts by weight of methyl ethyl ketone

[0055] 200 parts by weight of tetrahydrofuran

Embodiment 3

[0057] Except having changed the adhesive paint into the following composition, it carried out similarly to Example 1, and obtained the adhesive tape for electronic components of this invention.

[0058] (composition of adhesive paint)

[0059] 100 parts by weight of acrylonitrile-butadiene copolymer

[0060] (Mooney viscosity is 53M 1+4 100°C, acrylonitrile content 40% by weight)

[0061] 70 parts by weight of novolac epoxy resin

[0062] (manufactured by Nippon Kayakusha, brand name: EPPN-501H)

[0063] 25 parts by weight of 4,4'-diaminodiphenylsulfone

[0064] 5 parts by weight of zinc oxide

[0065] 400 parts by weight of methyl ethyl ketone

[0066] 200 parts by weight of tetrahydrofuran