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:
Oct. 20, 2009
Filed:
Jul. 14, 2006
Florin Udrea, Cambridge, GB;
Nishad Udugampola, Cambridge, GB;
Gehan A. J. Amaratunga, Cambridge, GB;
Florin Udrea, Cambridge, GB;
Nishad Udugampola, Cambridge, GB;
Gehan A. J. Amaratunga, Cambridge, GB;
Cambridge Semiconductor Limited, Cambridge, GB;
Abstract
A bipolar high voltage/power semiconductor device has a drift region having adjacent its ends regions of different conductivity types respectively. High and low voltage terminals are provided. A first insulated gate terminal and a second insulated gate terminal are also provided. One or more drive circuits provide appropriate voltages to the first and second insulated gate terminals so as to allow current conduction in a first direction or in a second direction that is opposite the first direction.