Patent ID: 9576838
Date: 2017-02-21
CPC Classifications: B23Q,B32B,H01L,Y10S,Y10T

Claim:
1. An apparatus to separate a semiconductor wafer from a disk, the apparatus comprising: a bonded assembly including a semiconductor wafer, an adhesive layer, and an optically transparent disk dimensioned to receive the semiconductor wafer and bonded to the semiconductor wafer by the adhesive layer to provide support for the semiconductor wafer, the optically transparent disk defining a circular perimeter with first and second corner profiles, at least one of the first and second corner profiles having a chamfered profile to reduce likelihood of chipping; and a debonding chuck including a first surface that defines a recess, a second surface disposed in the recess and separated from the first surface to define a depth of the recess, the second surface defining at least one suction opening configured to facilitate delivery of a suction force to the semiconductor wafer via the recess, at least a portion of the second surface being in thermal contact with a heat source to allow heating of the bonded assembly positioned on the debonding chuck.