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. 01, 2003
Filed:
Feb. 04, 2002
Applicant:
Inventor:
Hiroomi Nakajima, Yokohama, JP;
Assignee:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 2/176 ; H01L 2/1332 ;
U.S. Cl.
CPC ...
H01L 2/176 ; H01L 2/1332 ;
Abstract
Gettering layers are formed near element isolation insulating films in an active layer on a buried oxide film. The gettering layers trap mainly heavy metals diffused from the element isolation insulating films into the active layer.