Patent ID: 8324084
Filing Date: 2012-12-04
Classification: H01L

Abstract:
1. A manufacturing method of a semiconductor substrate comprising: emitting rare gas ions to a surface of a single crystal semiconductor substrate to form a first damaged region in the single crystal semiconductor substrate; emitting a laser light to the surface of the single crystal semiconductor substrate to form a second damaged region with a portion of the first damaged region melted; emitting hydrogen ions to the second damaged region through the surface of the single crystal semiconductor substrate to form an embrittled region at a certain depth from the surface of the single crystal semiconductor substrate; and performing a heat treatment to separate the single crystal semiconductor substrate at the embrittled region using the embrittled region to serve as a cleaved surface with the single crystal semiconductor substrate and a base substrate superimposed over each other in order to form a single crystal semiconductor layer over the base substrate from the single crystal semiconductor substrate.