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:
May. 19, 2009
Filed:
Jun. 16, 2006
Eric J. Stewart, Silver Spring, MD (US);
Stephen Van Campen, Clarksville, MD (US);
Rowland C. Clarke, Sykesville, MD (US);
Eric J. Stewart, Silver Spring, MD (US);
Stephen Van Campen, Clarksville, MD (US);
Rowland C. Clarke, Sykesville, MD (US);
Northrop Grumman Corp, Baltimore, MD (US);
Abstract
A dual gate power switch comprised of a vertical arrangement of a normally off SIT (static induction transistor) in series with a normally on SIT in a monolithic semiconductor structure. The structure includes a first pillar having at the base thereof laterally extending shoulder portions having sections of a first gate for controlling the normally off SIT. The structure includes a second pillar, of a width greater than the first pillar and which also has laterally extending shoulder portions having sections of a second gate for controlling the normally on SIT. Contacts are provided for SIT operation.