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. 10, 2003
Filed:
Aug. 30, 1999
Stephen Keetai Park, Cupertino, CA (US);
Advanced Micro Devices, Inc., Sunnyvale, CA (US);
Abstract
The present invention is directed to an integrated circuit having an optimized gate coupling capacitance. The integrated circuit includes a substrate defining a trench therein. A first conductive layer has a portion which extends into the trench. The first conductive layer defines a channel fabricated by a blanket etching step. An insulative layer is adjacent the first conductive layer. A second conductive layer is adjacent the insulative layer. The present invention is further directed to a method of fabricating an integrated circuit. The method includes forming a trench in the substrate, filling the trench with a trench fill material, etching the trench fill material until an upper surface of the trench fill material is below an upper surface of the substrate, providing a first conductive layer over at least a portion of the trench fill material, and blanket etching the first conductive layer until the portion is exposed.