Patent ID: 8653202

Claim:
An adhesive composition for semiconductor comprising an organic-solvent-soluble polyimide (a), an epoxy compound (b) and a hardening accelerator (c), wherein, per 100 wt parts of the epoxy compound (b), there are contained 30 to 65 wt parts of the organic-solvent-soluble polyimide (a) and 0.1 to 10 wt parts of the hardening accelerator (c), wherein the organic-solvent-soluble polyimide (a) is a polymer which has a structure represented by any one of the general formulas (2) to (7), and is capable of reacting with the epoxy compound, wherein R 4 in the general formulas (2) to (7) is either a 2 to 12-valent organic group, or a structure represented by general formula (1) in an amount of 2 to 15 wt % with respect to a total amount of the polymer; wherein in formula (1), R 1 is a phenylene group or an alkylene group with 1 to 5 carbons and R 2 is a phenyl group or an alkyl group with 1 to 5 carbons, and n denotes an integer of 1 to 10; wherein, R 3 is a 4 to 14-valent organic group, at least one of R 3 and R 4 contains at least one group selected from the group consisting of 1,1,1,3,3,3-hexafluoropropyl group, isopropyl group, ether group, thioether group and SO 2 group; R 5 and R 6 denote organic groups containing at least one group selected from the group consisting of phenolic hydroxyl group, sulfonic acid group and thiol group and they may be same or different; X denotes a monovalent organic group, Y denotes a divalent organic group and Z denotes a monovalent organic group; m denotes a range of 8 to 200; α and β respectively denote an integer of 0 to 10, and α+β is an integer of 1 to 10; and the epoxy compound (b) comprises an epoxy compound that is liquid at 25° C. under 1.013×10 5 N/m 2 and an epoxy compound that is solid at 25° C. under 1.013×10 5 N/m 2 , and an amount of the epoxy compound that is liquid based on all the epoxy compounds is in a range of 30 wt % or more and 50 wt % or less.