Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Adhesive outermost layer
Reexamination Certificate
2011-08-23
2011-08-23
Fourson, George (Department: 2823)
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Adhesive outermost layer
C438S455000, C257SE21122, C257SE21567
Reexamination Certificate
active
08003207
ABSTRACT:
An adhesive bonding sheet having an optically transmitting supporting substrate and an adhesive bonding layer, and being used in both a dicing step and a semiconductor element adhesion step, wherein the adhesive bonding layer comprises: a polymer component (A) having a weight average molecular weight of 100,000 or more including functional groups; an epoxy resin (B); a phenolic epoxy resin curing agent (C); a photoreactive monomer (D), wherein the Tg of the cured material obtained by ultraviolet light irradiation is 250° C. or more; and a photoinitiator (E) which generates a base and a radical by irradiation with ultraviolet light of wavelength 200-450 nm.
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Inada Teiichi
Ookubo Keisuke
Antonelli, Terry Stout & Kraus, LLP.
Fourson George
Hitachi Chemical Company Ltd.
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