Patent ID: 6335231
Filing Date: 2002-01-01
Classification: H01L,Y10S

Abstract:
A method of fabricating a semiconductor device, said method comprising the steps of:preparing a single crystal semiconductor substrate having a main surface of a {110} surface; forming an oxide layer in the single semiconductor substrate; forming a hydrogen-containing layer at a predetermined depth in the single crystal semiconductor substrate by adding hydrogen into the single semiconductor substrate from a side of the main surface through the oxide layer; bonding the single crystal semiconductor substrate and a supporting substrate to each other; separating the single crystal semiconductor substrate by a first heat treatment along the hydrogen-containing layer; carrying out a second heat treatment at a temperature of 900 to 1200Â° C.; polishing a single crystal semiconductor layer remaining on the supporting substrate and having a main surface of a {110} plane; and forming at least one thin film transistor using the single crystal semiconductor layer as an active layer thereof.