Patent ID: 8545979
Filing Date: 2013-10-01
Classification: C09J,H01L,Y10T

Abstract:
1. A wafer-processing tape, having an adhesive layer and a removable adhesive layer formed at least on one side of a base film, wherein the adhesive layer and the base film are formed of a single layer, wherein the removable adhesive layer is directly disposed on a part of the adhesive layer different from a portion whereto a wafer is to be adhered, wherein the adhesive layer is directly disposed on the base film, said wafer-processing tape comprising: an area where B an area where A>B in which a peeling force between the base film and the adhesive layer disposed on the base film is designated as A, and peeling forces between one target to be bonded and the adhesive layer and between another target to be bonded and the removable adhesive layer are designated as B 1 and B 2 , respectively, wherein the adhesive layer is transferred onto a chip side upon pickup in the area where B wherein said wafer is said one target to be bonded.