Patent ID: 7541264
Filing Date: 2009-06-02
Classification: C08L,C09J,H01L

Abstract:
1. A method comprising: (1) forming a film by applying an addition reaction curable adhesive composition to a first substrate, where the addition reaction curable composition is a hydrosilylation reaction curable composition comprising: (A) a polyorganosiloxane containing an average of at least two silicon- bonded unsaturated organic groups per molecule, (B) an organosilicon compound containing an average of at least two silicon-bonded hydrogen atoms per molecule in an amount sufficient to cure the composition, (C) a catalytic amount of a hydrosilylation catalyst, optionally (D) a solvent, optionally (E) an inhibitor, optionally (F) a filler, optionally (G) a treating agent, optionally (H) a spacer, optionally (I) an adhesion promoter, optionally (J) a surfactant, and optionally (K) a colorant; optionally (2) heating the product of step (1), (3) applying a second substrate to the film, where at least one of the first substrate and the second substrate is a semiconductor wafer, (4) curing the film to form a cured film, (5) processing the semiconductor wafer, and (6) removing the cured film with an etching solution.