Patent ID: 8841207
Filing Date: 2014-09-23
Classification: H01L,Y10T

Abstract:
1. A method for using a reusable substrate made of a first material with a plurality of grooves for electronic device fabrication, said method comprising: preparing a reusable substrate including a top planar surface, the top planar surface being divided by a plurality of grooves into a plurality of planar regions, the plurality of planar regions including a plurality of planar bottom surfaces parallel to the top planar surface; forming a first epitaxial layer made of a second material on the plurality of planar regions, the first epitaxial layer being in direct contact with the top planar surface; separating the first epitaxial layer from each of the plurality of planar regions, the first epitaxial layer being separated directly from the top planar surface; and after the first epitaxial layer is separated from each of the plurality of planar regions, forming a second epitaxial layer made of a third material on the plurality of planar regions, the second epitaxial layer being in direct contact with the top planar surface.