The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 04, 2001
Filed:
Jun. 29, 1999
Shin-Etsu Handotai Co., Ltd., Tokyo, JP;
Abstract
There is disclosed a method of fabricating an SOI wafer wherein an oxide film is formed on at least one of two single crystal silicon wafers; hydrogen ions or rare gas ions are implanted into the upper surface of one of the two silicon wafers in order to form an ion implanted layer; the ion-implanted surface is brought into close contact with the surface of the other silicon wafer via the oxide film; heat treatment is performed to separate a thin film from the silicon wafer with using the ion implanted layer as a delaminating plane to fabricate the SOI wafer having an SOI layer; and then an epitaxial layer is grown on the SOI layer to form a thick SOI layer. There is provided an SOI wafer which has a thick SOI layer with good thickness uniformity and good crystallinity and which is useful for a bipolar device or a power device.