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:
Apr. 10, 2012
Filed:
Jan. 28, 2010
Applicant:
Bong-gyun Ko, Tokyo, JP;
Inventor:
Bong-Gyun Ko, Tokyo, JP;
Assignee:
Sumco Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
At oxygen ion implanting steps in manufacture of a SIMOX wafer, a path is formed inside or on a back surface of wafer holding means, and oxygen ions are implanted while heating an outer peripheral portion of the wafer that is in contact with the wafer holding means by flowing a heated fluid through this path. An in-plane temperature of a wafer held at the time of ion implantation is prevented from becoming uneven, and in-plane film thicknesses of both an SOI layer and a BOX layer are uniformed.