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:
Aug. 10, 2021
Filed:
Apr. 10, 2020
Sandisk Technologies Llc, Addison, TX (US);
Hiroki Yabe, Yokohama, JP;
SanDisk Technologies LLC, Addison, TX (US);
Abstract
A sense amplifier architecture is presented that can reduce sensing times by being able to sense smaller voltage swings between an ON memory cell and an OFF memory cell. The sense amplifier includes a sensing capacitor that, on one side, is connectable to multiple bit lines and, on the other side, to a main sense amplifier section. The main section includes a latch formed of a pair of inverters that has an input connected to the capacitor and an output that is connected to the other side of the capacitor by a third inverter. To pre-charge the latch, the input and output nodes are shorted and then the capacitor is connected to discharge the capacitor through a selected memory cell based on whether it is ON or OFF. A programming data latch for each bit line can bias the bit line to either a program enable or program inhibit level.