US 12,175,111 B2
Data migration techniques
Kulachet Tanpairoj, San Mateo, CA (US); and Jianmin Huang, San Carlos, CA (US)
Assigned to Micron Technology, Inc., Boise, ID (US)
Filed by Micron Technology, Inc., Boise, ID (US)
Filed on Jan. 13, 2022, as Appl. No. 17/647,943.
Claims priority of provisional application 63/139,418, filed on Jan. 20, 2021.
Prior Publication US 2022/0229574 A1, Jul. 21, 2022
Int. Cl. G06F 3/06 (2006.01)
CPC G06F 3/0647 (2013.01) [G06F 3/0614 (2013.01); G06F 3/0635 (2013.01); G06F 3/0659 (2013.01); G06F 3/0679 (2013.01)] 25 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a first memory device; and
control circuitry coupled with the first memory device and configured to cause the apparatus to:
receive, from a host device, a command associated with a write operation;
determine whether to use a data migration technique for transferring data from a second memory device to the first memory device in a tri-level write format or a quad-level write format based at least in part on receiving the command;
select the tri-level write format instead of the quad-level write format for transferring the data from the second memory device to the first memory device based at least in part on a timing to complete transferring the data from the second memory device to the first memory device in the quad-level write format and determining to use the data migration technique;
transfer the data from the second memory device to the first memory device in the tri-level write format based at least in part on selecting the tri-level write format;
write the data to the first memory device using the tri-level write format based at least in part on selecting the tri-level write format; and
convert the data from the tri-level write format to the quad-level write format based at least in part on writing the data.