Patent ID: 9679814
Date: 2017-06-13
CPC Classifications: H01L

Claim:
1. A method for forming a thin film material for at least one of a solar device, semiconductor device, and an electronic device during an epitaxial lift off process, comprising: forming an epitaxial material over a sacrificial layer on a substrate; flattening a curved support material to form a support handle; adhering a first surface of the support handle to the epitaxial material, wherein the support handle is under tension while flattened and the epitaxial material is under compression; and removing the sacrificial layer during an etching process, at least an edge of the support handle bending toward a second surface of the support handle and away from the substrate to form an etch crevice between the support handle and the substrate, the second surface of the support handle opposing the first surface, and the epitaxial material being on an outside of the curvature of the support material.