Patent ID: 9695345
Date: 2017-07-04
CPC Classifications: C08G,C08K,C09J,H01L,Y10T

Claim:
1. A dicing die bonding film, comprising: a die bonding portion having an adhesive layer adapted to adhere to a wafer; and a dicing portion having a tacky layer, wherein a ratio X/Y of adhesive power X between the wafer and the adhesive layer of the die bonding portion to tacky power Y between the die bonding portion and the tacky layer of the dicing portion is 0.25 to 0.33, and the adhesive layer of the die bonding portion has a storage modulus of 125 to 276 MPa at a room temperature, wherein the adhesive power X between the wafer and the adhesive layer of the die bonding portion is 30 to 75 gf/inch, and the tacky power Y between the die bonding portion and the tacky layer of the dicing portion is 122 to 221 gf/inch, wherein the adhesive layer of the die bonding portion consists of a) a thermosetting multi-functional epoxy resin, b) an acryl copolymer containing glycidyl groups, c) a curing agent, d) a curing promoting agent, and e) an inorganic filler, wherein the a) thermosetting multi-functional epoxy resin contains at least two epoxy groups in a main chain and has a glass transition temperature of 50° C. or above, and wherein the b) acryl copolymer containing glycidyl groups has a glass transition temperature of 50° C. or below.