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:
Apr. 29, 2014
Filed:
Jan. 05, 2012
Izak Bencuya, Saratoga, CA (US);
Brian Sze-ki MO, Palo Alto, CA (US);
Ashok Challa, Sandy, UT (US);
Fairchild Semiconductor Corporation, South Portland, ME (US);
Abstract
A metal-oxide-semiconductor field effect transistor (MOSFET) includes a substrate, the substrate being heavily doped and of a first conductivity type, a substrate cap region disposed on the substrate, the substrate cap region being heavily doped and of the first conductivity type and a body region disposed on the substrate cap region, the body region being lightly doped and of a second conductivity type. The MOSFET also includes a trench extending into the body region, a source region of the first conductivity type disposed in the body region and in contact with an upper portion of a sidewall of the trench and an out-diffusion region of the first conductivity type formed such that a spacing between the source region and the out-diffusion region defines a channel region of the MOSFET extending along the sidewall of the trench.