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. 14, 2008
Filed:
Aug. 04, 2006
Prajit Nandi, Karnataka, IN;
Prajit Nandi, Karnataka, IN;
SanDisk Corporation, Milpitas, CA (US);
Abstract
Method and system for controlling voltage and its temperature co-efficient in a non-volatile memory device having a plurality of programmable memory cells is provided. The system includes a temperature-dependent voltage generator for generating an output that is controlled independently by a first multiplier; a temperature-independent voltage generator having a constant output, wherein the constant output is controlled by a second multiplier; and an amplifier that receives the constant output of the temperature-independent voltage generator and the output of temperature-dependent voltage generator to generate a voltage that is applied to a memory cell for a read, and program-verify operation; wherein the temperature co-efficient and voltage applied to memory cells is controlled independently so that intrinsic temperature coefficient of the memory cell is substantially similar to temperature coefficient of the applied voltage.