Patent ID: 8764933
Filing Date: 2014-07-01
Classification: C08L,C09J,H01L,Y10T

Abstract:
1. A method for producing an electronic part, comprising: attaching an adhesive sheet to an electronic parts assembly, wherein the adhesive sheet is formed by applying an adhesive composition on a substrate film; dicing the electronic parts assembly attached to the adhesive sheet; and then stripping the adhesive sheet from each electronic part, wherein the adhesive composition comprises (A) a (meth)acrylic acid ester copolymer component which has a functional group-containing monomer unit and a weight average molecule weight of less than 350,000, and (B) a (meth)acrylic acid ester copolymer component which has a functional group-containing monomer unit and a weight average molecular weight of 350,000 to 2,000,000, at a weight ratio of 10:90 to 90:10, and further comprises 0.5 to 20 parts by mass of a crosslinking agent which reacts with both the functional group of said component (A) and the functional group of said component (B), with respect to 100 parts by mass of said component (A) and said component (B) in total.