Patent ID: 9659807
Date: 2017-05-23
CPC Classifications: H01L

Claim:
1. A method for fabricating a semiconductor device, comprising: providing a structure comprising a stressor layer stack on a first surface of a semiconductor substrate; forming an interfacial release layer on an exposed second surface of the semiconductor substrate; adhesively bonding the interfacial release layer to a rigid handle substrate using an epoxy; removing at least a portion of the stressor layer stack from the first surface of the semiconductor substrate; processing the semiconductor substrate by isolating cells in the semiconductor substrate by applying a hardmask to the semiconductor substrate and etching exposed semiconductor substrate down to the epoxy; and removing the hardmask and applying a pressure-sensitive tape to the semiconductor substrate to remove the semiconductor substrate from the interfacial release layer; wherein providing a structure comprising a stressor layer stack comprises forming the stressor layer stack by depositing an adhesion layer on the semiconductor substrate, depositing a seed layer on the adhesion layer, depositing a stressor layer on the seed layer, and applying a releasable tape to the stressor layer; wherein depositing an adhesion layer on the semiconductor substrate comprises depositing titanium on the semiconductor substrate.