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:
Dec. 08, 2015
Filed:
Aug. 14, 2014
Sandisk Technologies Inc., Plano, TX (US);
Jonathan Huynh, San Jose, CA (US);
Jongmin Park, Cupertino, CA (US);
SanDisk Technologies Inc., Plano, TX (US);
Abstract
Techniques and corresponding circuitry are presented for controlling the amount of current flowing through the cells of a memory circuit during a sensing operation though a feedback arrangement. The amount of current supplied to bit lines from an external power supply by regulation circuitry is compared with a reference level. Based on this comparison, the level on the control gates of clamp transistors in the sense amp circuits is set to control the amount of current supplied to the bit lines. This can reduce device variation since the levels are replicated locally at the generator on the chip. The circuitry can also be used more generally to determine the current level drawn during a sensing operation.