US Patent 7285822 Power MOS device

Patent 7285822 was granted and assigned to Alpha & Omega Semiconductor on October, 2007 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

Alpha & Omega Semiconductor

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7285822

Date of Patent

October 23, 2007

Patent Application Number

11056346

Date Filed

February 11, 2005

Patent Citations Received

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US Patent 11776994 SiC MOSFET with reduced channel length and high V

Patent Primary Examiner

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Thien F. Tran

Patent abstract

A semiconductor device comprises a drain, a body disposed over the drain, having a body top surface, a source embedded in the body, extending downward from the body top surface into the body, a gate trench extending through the source and the body into the drain, a gate disposed in the gate trench, a source body contact trench having a trench wall and an anti-punch through implant that is disposed along the trench wall.