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.

Date of Patent:
Jul. 14, 1998

Filed:

Sep. 27, 1995
Applicant:
Inventors:

Chenming Hu, Alamo, CA (US);

Hsing-Jen Wann, Albany, CA (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ; H01L / ;
U.S. Cl.
CPC ...
257335 ; 257338 ; 257350 ;
Abstract

A dynamic threshold voltage IGFET such as a MOSFET is operable at voltages of 0.6 volt or less. The threshold voltage of the transistor is reduced to zero volt or less by interconnecting the gate contact and the device body in which the voltage controlled channel is located. The channel region is delta-doped or counter-doped which permits superior performance for high-end VSLI applications. A selective epitaxy on a counter-doped substrate can be used in a counter-doped device. Doped wells can be used in a bulk silicon substrate in forming the devices. Trenching can be used to isolate devices in the doped wells.


Find Patent Forward Citations

Hu, Chenming. (1998). Delta doped and counter doped dynamic threshold voltage mosfet for (U.S. Patent No. 5780899). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5780899

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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