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:
Feb. 28, 2012
Filed:
Aug. 31, 2009
Tyler Thorp, Palo Alto, CA (US);
Roy E. Scheuerlein, Cupertino, CA (US);
Tyler Thorp, Palo Alto, CA (US);
Roy E. Scheuerlein, Cupertino, CA (US);
SanDisk 3D LLC, Milpitas, CA (US);
Abstract
The present invention provides methods and apparatus for adjusting voltages of bit and word lines to program a two terminal memory cell. The invention may include setting a first line connected to a memory cell to a first voltage from a first line standby voltage, charging a second line connected to the memory cell to a predetermined voltage from a second line standby voltage, and switching the first line from the first voltage to a second voltage. The voltage difference between the first voltage and the predetermined voltage is such that a safe voltage results that does not program the memory cell. A voltage difference between the second voltage and the predetermined voltage is such that a programming voltage operative to program the memory cell results.