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:
Jul. 19, 2011
Filed:
Jan. 15, 2010
Applicants:
John M. Shannon, Whyteleafe, GB;
Stanley D. Brotherton, Forest Row, GB;
Inventors:
John M. Shannon, Whyteleafe, GB;
Stanley D. Brotherton, Forest Row, GB;
Assignee:
ST-Ericsson SA, Plan-les-Ouates, CH;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01J 5/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A photo transistor has an active region spaced from a source by barrier. A drain is laterally spaced from the active region. Light incident on the active region creates electron-hole pairs. Holes accumulate at the barrier and modulate the effective barrier height to electrons. A gate reset voltage then is applied to gate which lower the barrier allowing the holes to escape.