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:
Jun. 10, 2025
Filed:
Jul. 21, 2023
Sandisk Technologies Llc, Addison, TX (US);
Dimitri Houssameddine, Sunnyvale, CA (US);
Michael Nicolas Albert Tran, San Jose, CA (US);
Ward Parkinson, Boise, ID (US);
Michael Grobis, Campbell, CA (US);
Sandisk Technologies, Inc., Milpitas, CA (US);
Abstract
Technology is disclosed herein for reading programmable resistance memory cells. A first (faster) self-referenced read (SRR) of a group of memory cells is performed and if successful the read is complete. However, if the first SRR fails then a second (slower or nominal) SRR is performed. The bit error rate (BER) of the second SRR may be significantly lower than the BER of the first SRR. However, the BER of the first SRR may be low enough such that most of the time the first SRR is successful. Therefore, most of the time the read is completed with just the first SRR, thereby providing for an SRR having on average is faster than if just the second SRR had been used. Moreover, the effective BER of the SRR is extremely low due to the low BER of the second SRR.