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. 30, 2009
Filed:
Jan. 11, 2006
Paul Ranucci, Tucson, AZ (US);
Robert Labicane, Tucson, AZ (US);
Paul Ranucci, Tucson, AZ (US);
Robert Labicane, Tucson, AZ (US);
National Semiconductor Corporation, Santa Clara, CA (US);
Abstract
The present invention provides a versatile system for producing sense transistors having optimized thermal and parametric matching with an associated power transistor. A power transistor is formed, having a plurality of alternating source and drain structures, with a plurality of gate structures interposed there between. At a desired location within the power transistor—which may be in a central location, or symmetrically distributed—one or more sense transistors are formed from an isolated portion of either a drain or source structure.