Patent ID: 9035466
Filing Date: 2015-05-19
Classification: H01L,Y10T

Abstract:
1. A process for producing a semiconductor device, the process comprising: attaching a workpiece onto a film for flip chip type semiconductor back surface of a dicing tape-integrated film for semiconductor back surface, dicing the workpiece to form a chip-shaped workpiece, peeling the chip-shaped workpiece from a pressure-sensitive adhesive layer of the dicing tape together with the film for flip chip type semiconductor back surface, and fixing the chip-shaped workpiece to an adherend by flip chip bonding, wherein the film for flip chip type semiconductor back surface of the dicing tape-integrated film for semiconductor back surface comprises a dicing tape comprising a base material and a pressure-sensitive adhesive layer provided on the base material; and the film for flip chip type semiconductor back surface, wherein the film is provided on the pressure-sensitive adhesive layer and the film contains a black pigment; wherein the film flip chip type semiconductor back surface has a thickness of 2 to 200 μm; wherein a ratio of a thickness of the film for semiconductor back surface to a thickness of the dicing tape is in a range of 150/50 to 3/500; wherein the film for flip chip type semiconductor back surface has a moisture absorbance of 1% by weight or less when the film is allowed to stand under an atmosphere of temperature of 85° C. and humidity of 85% RH for 168 hours; and wherein the film for flip chip type semiconductor back surface has a ratio of weight decrease of 1% by weight or less after heating at a temperature of 250° C. for 1 hour.