Controlled boosting in non-volatile memory soft programming

Details Controlled boosting in non-volatile memory soft programming Controlled boosting in non-volatile memory soft programming

2011-03-22

2011-03-22

Dinh, Son (Department: 2824)

Static information storage and retrieval

Floating gate

Particular biasing

C365S185300, C365S185220

Reexamination Certificate

active

07911849

ABSTRACT:
A soft programming pre-charge voltage provides boosting control during soft programming operations for non-volatile memory devices. A pre-charge voltage can be applied to the word lines of a block of memory cells to enable pre-charging of the channel region of a NAND string to be inhibited from soft programming. The level of boosting in the channel region of the inhibited NAND string is governed by the pre-charge voltage and the soft programming voltage. By controlling the pre-charge voltage, more reliable and consistent channel boosting can be achieved. In one embodiment, the pre-charge voltage is increased between applications of the soft programming voltage to reduce or eliminate a rise in the channel's boosted potential. In one embodiment, the soft programming pre-charge voltage level(s) is determined during testing that is performed as part of a manufacturing process.

REFERENCES:
patent: 5745410 (1998-04-01), Yiu et al.
patent: 6134140 (2000-10-01), Tanaka et al.
patent: 6249459 (2001-06-01), Chen et al.
patent: 6252803 (2001-06-01), Fastow et al.
patent: 6381177 (2002-04-01), De Sandre et al.
patent: 6469939 (2002-10-01), Wang et al.
patent: 6522583 (2003-02-01), Kanda et al.
patent: 6532175 (2003-03-01), Yachareni et al.
patent: 6594178 (2003-07-01), Choi et al.
patent: 6798694 (2004-09-01), Mihnea et al.
patent: 6859397 (2005-02-01), Lutze et al.
patent: 6912159 (2005-06-01), Osawa et al.
patent: 6940752 (2005-09-01), Tanaka et al.
patent: 7009881 (2006-03-01), Noguchi
patent: 7023733 (2006-04-01), Guterman et al.
patent: 7092290 (2006-08-01), Hemink
patent: 7180781 (2007-02-01), Abedifard et al.
patent: 7286408 (2007-10-01), Higashitani
patent: 7295478 (2007-11-01), Wan et al.
patent: 7301817 (2007-11-01), Li et al.
patent: 7355889 (2008-04-01), Hemink et al.
patent: 7440323 (2008-10-01), Lutze et al.
patent: 7440326 (2008-10-01), Ito
patent: 7486564 (2009-02-01), Hemink et al.
patent: 7499338 (2009-03-01), Ito
patent: 7535763 (2009-05-01), Hemink
patent: 7545675 (2009-06-01), Kamei
patent: 7697338 (2010-04-01), Hemink
patent: 2001/0015910 (2001-08-01), Choi
patent: 2002/0110019 (2002-08-01), Satoh et al.
patent: 2003/0147279 (2003-08-01), Pan et al.
patent: 2005/0122780 (2005-06-01), Chen et al.
patent: 2005/0265097 (2005-12-01), Tanaka et al.
patent: 2006/0044919 (2006-03-01), Taoka et al.
patent: 2008/0084747 (2008-04-01), Hemink et al.
U.S. Appl. No. 11/560,744, filed Nov. 16, 2006.
U.S. Appl. No. 11/560,751, filed Nov. 16, 2006.
International Search Report & The Written Opinion of the International Searching Authority dated May 19, 2008, Patent Cooperation Treaty, International Application No. PCT/US2007/084463 filed Nov. 12, 2007.
Restriction Requirement dated Aug. 7, 2008, United States Patent & Trademark Office, U.S. Appl. No. 11/560,744, filed Nov. 16, 2006.
Response to Restriction Requirement dated Sep. 3, 2008, U.S. Appl. No. 11/560,744, filed Nov. 16, 2006.
Non-Final Office Action dated Oct. 7, 2008, United States Patent & Trademark Office, U.S. Appl. No. 11/560,744, filed Nov. 16, 2006.
Response to Non-Final Office Action dated Jan. 7, 2009, U.S. Appl. No. 11/560,744, filed Nov. 16, 2006.
Notice of Allowance and Fee(s) Due dated Jan. 16, 2006, United States Patent & Trademark Office, U.S. Appl. No. 11/560,744, filed Nov. 16, 2006.
International Exam Report dated May 28, 2009, Patent Cooperation Treaty, International Application No. PCT/US2007/084463 filed Nov. 12, 2007.
Non-Final Office Action dated Jun. 10, 2009, United States Patent & Trademark Office, U.S. Appl. No. 11/560,751, filed Nov. 16, 2006.
Response to Non-Final Office Action dated Aug. 27, 2009, U.S. Appl. No. 11/560,751, filed Nov. 16, 2006.
Notice of Allowance and Fee(s) Due dated Nov. 25, 2009, United States Patent & Trademark Office, U.S. Appl. No. 11/560,751, filed Nov. 16, 2006.

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