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.:

US 7906805 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 15, 2011

Filed:

Aug. 22, 2008
Applicants:

Michael Sadd, Austin, TX (US);

Fethi Dhaoui, Patterson, CA (US);

John Mccollum, Saratoga, CA (US);

Richard Chan, Los Altos, CA (US);

Inventors:

Michael Sadd, Austin, TX (US);

Fethi Dhaoui, Patterson, CA (US);

John McCollum, Saratoga, CA (US);

Richard Chan, Los Altos, CA (US);

Assignee:

Actel Corporation, Mountain View, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/788 (2006.01);
U.S. Cl.
CPC ...
Abstract

An edgeless one-transistor flash memory array includes transistors that have two polysilicon gate layers that overlay an active region. The bottom polysilicon gate layer is electrically isolated. The memory is configured such that current passes from drain to source under the bottom polysilicon layer, such that it does not approach a field oxide region. An edgeless two-transistor programmable memory includes memory cells that have two active devices. Two polysilicon gate layers overlay two active regions and are shared between the two active devices. One of the devices is used to program and erase the cell while the other used as a programmable switch in a programmable logic device. The bottom polysilicon gate layer is electrically isolated. The memory is configured such that current passes from drain to source under the bottom polysilicon layer, such that it does not approach a field oxide region.


Find Patent Forward Citations

Sadd, Michael. (2011). Reduced-edge radiation-tolerant non-volatile transistor memory cells (U.S. Patent No. 7906805). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7906805

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

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