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:
May. 05, 2009
Filed:
Dec. 28, 2006
Applicants:
Feng Pan, Fremont, CA (US);
Trung Pham, Fremont, CA (US);
Inventors:
Feng Pan, Fremont, CA (US);
Trung Pham, Fremont, CA (US);
Assignee:
SanDisk Corporation, Milpitas, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/34 (2006.01); G11C 16/06 (2006.01); G11C 7/06 (2006.01); G11C 5/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
Controlling a bitline bias voltage by sensing the bitline bias voltage, modifying a bitline bias control signal in accordance with the sensed bitline bias voltage, and controlling the bitline bias voltage in accordance with the modified bitline bias control signal. The modifying the bitline bias control signal is carried out by enabling a pull up circuit and disabling a pull down circuit in response to a first control signal and disabling the pull up circuit and enabling the pull down circuit in response to a second control signal.