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:
Nov. 04, 2008
Filed:
Mar. 14, 2006
Shuming Xu, Schnecksville, PA (US);
Jacek Korec, Sunrise, FL (US);
Shuming Xu, Schnecksville, PA (US);
Jacek Korec, Sunrise, FL (US);
Ciclon Semiconductor Device Corp., Bethlehem, PA (US);
Abstract
A low voltage power device includes a plurality of quasi-vertical LDMOS device cells. A conductive trench sinker is formed through the epitaxial layer and adjacent a selected one of the source and drain regions in each cell. The trench sinker electrically couples the selected one of the source and drain regions to the substrate for coupling current from the channel to the substrate. The resulting device exhibits a vertical current flow between the metal electrode covering the front surface and the second electrode formed at the back side of the wafer. The device cells are arranged in a closed cell configuration.