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:
Jun. 22, 2004
Filed:
Jul. 31, 2002
Applicant:
Inventors:
Eddie Huang, Stockport, GB;
Steven T. Peake, Warrington, GB;
Assignee:
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 2/900 ;
U.S. Cl.
CPC ...
H01L 2/900 ;
Abstract
A semiconductor rectifier includes an intermediate semiconductor region ( ) extending between anode ( ) and cathode ( ) contacts. A trenched gate ( ) with insulated sidewalls ( ) and base ( ) can deplete the intermediate region. However, a shield region ( ) acts to shield the intermediate region ( ) from the gate ( ) to allow current to flow in dependence on the polarity of the voltage applied between anode and cathode contacts ( ).