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:
Aug. 12, 2008
Filed:
Dec. 08, 2005
Applicant:
Frédéric Lanois, Tours, FR;
Inventor:
Frédéric Lanois, Tours, FR;
Assignee:
STMicroelectronics S.A., Montrouge, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 29/80 (2006.01);
U.S. Cl.
CPC ...
Abstract
A vertical unipolar component formed in a semiconductor substrate, comprising vertical fingers made of a conductive material surrounded with silicon oxide, portions of the substrate being present between the fingers and the assembly being coated with a conductive layer. The component periphery includes a succession of fingers arranged in concentric trenches, separated from one another by silicon oxide only, the upper surface of the fingers of at least the innermost rank being in contact with said conductive layer.