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US006466480B2
(12) United States Patent ao) Patent No.: us 6,466,480 B2
Pekny (45) Date of Patent: Oct. 15,2002
(54) METHOD AND APPARATUS FOR
TRIMMING NON-VOLATILE MEMORY
CELLS
(75) Inventor: Theodore T. Pekny, Campbell, CA
(US)
(73) Assignee: Micron Technology, Inc., Boise, ID (US)
( * ) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 0 days.
(21) Appl. No.: 09/818,957
(22) Filed: Mar. 27, 2001
(65) Prior Publication Data
US 2002/0141235 Al Oct. 3, 2002
(51) Int. CI.7 G11C 16/06
(52) U.S. CI 365/185.2; 365/185.22;
365/185.24
(58) Field of Search 365/185.2, 185.22,
365/185.21, 185.24, 185.19
(56) References Cited
U.S. PATENT DOCUMENTS
5,764,568 A 6/1998 Chevallier
