US 11,727,996 B2
Dynamic valley searching in solid state drives
Harish Singidi, Fremont, CA (US); Amiya Banerjee, Bangalore (IN); and Shantanu Gupta, Freemont, CA (US)
Assigned to Western Digital Technologies, Inc., San Jose, CA (US)
Filed by Western Digital Technologies, Inc., San Jose, CA (US)
Filed on Oct. 6, 2022, as Appl. No. 17/961,468.
Application 17/961,468 is a continuation of application No. 17/197,488, filed on Mar. 10, 2021, granted, now 11,468,953.
Prior Publication US 2023/0023725 A1, Jan. 26, 2023
Int. Cl. G11C 16/26 (2006.01); G11C 16/10 (2006.01); G11C 7/10 (2006.01); G11C 16/34 (2006.01)
CPC G11C 16/26 (2013.01) [G11C 7/106 (2013.01); G11C 7/1087 (2013.01); G11C 16/10 (2013.01); G11C 16/3459 (2013.01); G11C 2207/2254 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of utilizing dynamic valley searches, the method comprising:
writing data to a plurality of planes of a storage device utilizing a multi-pass programming process wherein;
an initial searching read during an intermediate stage of the multi-pass programming process is utilized; and
a series of valley scans is performed to verify the data; and
reading the stored data utilizing a calibrated read derived from an initial searching read comprising at least a series of valley scans performed on planes within the plurality of planes.