Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Adhesive outermost layer
Patent
1990-06-29
1993-02-16
Davis, Jenna L.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Adhesive outermost layer
427516, 428345, 428355, C09J 702, C09J13308, C09J13310
Patent
active
051870070
ABSTRACT:
An adhesive sheet according to the present invention comprises a substrate having coated on the surface thereof an adhesive layer consisting of an adhesive and a radiation polymerizable compound, which compound is a urethane acrylate oligomer having a molecular weight of 3,000-10,000, preferably 4,000-8,000. The adhesive sheet is preferably used in subjecting semiconductor wafers to dicing operation and no adhesive sticks to and remains on the back side surface of the wafer chips as picked up.
REFERENCES:
patent: 4311759 (1982-01-01), Glennon
patent: 4421322 (1983-12-01), Levens
patent: 4598036 (1986-07-01), Iwasaki
patent: 4601973 (1986-07-01), Bauer
patent: 4756968 (1988-07-01), Ebe
patent: 4965127 (1990-10-01), Ebe
Akeda Yoshitaka
Ebe Kazuyoshi
Narita Hiroaki
Saito Takanori
Taguchi Katsuhisa
Davis Jenna L.
Lintec Corporation
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