Patent ID: 7994022
Filing Date: 2011-08-09
Classification: H01L

Abstract:
1. A method for manufacturing a semiconductor substrate, comprising: forming a bonding layer comprising one or a plurality of layers of phosphosilicate glass, borosilicate glass, and borophosphosilicate glass over a bond substrate using organosilane by a thermal CVD method at a temperature equal to or higher than 500° C. and equal to or lower than 800° C.; adding ions from a surface side where the bonding layer is formed to form a damaged region at a given depth of the bond substrate; and performing thermal treatment by which the damaged region cracks and the bond substrate is separated at the damaged region, in a state in which the bond substrate and a glass substrate are overlapped with the bonding layer interposed therebetween, so that a semiconductor layer which is separated from the bond substrate is formed over the glass substrate.