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:
Oct. 09, 2001
Filed:
Mar. 19, 1999
Applicant:
Inventors:
Donald S. Gerber, Gilbert, AZ (US);
Randy L. Yach, Phoenix, AZ (US);
Kent D. Hewitt, Chandler, AZ (US);
Gianpaolo Spadini, Mesa, AZ (US);
Assignee:
Microchip Technology Incorporated, Chandler, AZ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 2/18238 ; H01L 2/18242 ; H01L 2/1336 ;
U.S. Cl.
CPC ...
H01L 2/18238 ; H01L 2/18242 ; H01L 2/1336 ;
Abstract
An array of P-channel memory cells is separated into independently programmable memory segments by creating multiple, electrically isolated N-wells upon which the memory segments are fabricated. The methods for creating the multiple, electrically isolated N-wells include p-n junction isolation and dielectric isolation.