Patent ID: 6355750
Filing Date: 2002-03-12
Classification: C08F,C08G,C08L,C09J,H01L,Y02P

Abstract:
A curable adhesive composition for bonding an electronic component to a substrate comprising a maleimide compound and a curing initiator selected from the group consisting of a free-radical initiator, a photoinitiator, and a combination of those, the maleimide compound having the formula (Mâ€”Xm)nâ€”Q in which n is 1 to 6, m is 1 or 2 and(a) M is a maleimide moiety having the structure: â€ƒin which R1 is H or an alkyl group having 1 to 5 carbon atoms; (b) X is an aromatic group selected from the group of aromatic groups having the structures: â€ƒand â€ƒand (c) Q is an ester having the structure: â€ƒin which R3 is a siloxane having the structure â€”(CR12)gâ€”(O)1,0â€”(CR12)eâ€”(Siâ€”R42â€”O)fâ€”Siâ€”R42â€”(CR12)gâ€”(O)1,0â€”(CR12)gâ€” in which the R1 substituent independently for each position is H or an alkyl group having 1 to 5 carbon atoms, R8 is a linear or branched chain alkyl or alkylene oxy having 1 to 20 carbon atoms, R4 substituent independently for each position is an alkyl group having 1 to 5 carbon atoms or an aryl group, e and g are independently 1 to 10, and f is 1 to 50.