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:
Aug. 30, 2011
Filed:
Aug. 10, 2009
Alan B. Botula, Essex Junction, VT (US);
Alvin J. Joseph, Williston, VT (US);
Alan D. Norris, Hinesburg, VT (US);
Robert M. Rassel, Colchester, VT (US);
Yun Shi, South Burlington, VT (US);
Alan B. Botula, Essex Junction, VT (US);
Alvin J. Joseph, Williston, VT (US);
Alan D. Norris, Hinesburg, VT (US);
Robert M. Rassel, Colchester, VT (US);
Yun Shi, South Burlington, VT (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A Schottky barrier diode comprises a doped guard ring having a doping of a second conductivity type in a semiconductor-on-insulator (SOI) substrate. The Schottky barrier diode further comprises a first-conductivity-type-doped semiconductor region having a doping of a first conductivity type, which is the opposite of the second conductivity type, on one side of a dummy gate electrode and a Schottky barrier structure surrounded by the doped guard ring on the other side. A Schottky barrier region may be laterally surrounded by the dummy gate electrode and the doped guard ring. The doped guard ring includes an unmetallized portion of a gate-side second-conductivity-type-doped semiconductor region having a doping of a second conductivity type. A Schottky barrier region may be laterally surrounded by a doped guard ring including a gate-side doped semiconductor region and a STI-side doped semiconductor region. Design structures for the inventive Schottky barrier diode are also provided.