US 11,915,737 B2
Apparatus with refresh management mechanism
Nathaniel J. Meier, Boise, ID (US); James S. Rehmeyer, Boise, ID (US); and David R. Brown, Allen, TX (US)
Filed by Lodestar Licensing Group LLC, Evanston, IL (US)
Filed on Aug. 8, 2022, as Appl. No. 17/882,894.
Application 17/882,894 is a continuation of application No. 17/091,969, filed on Nov. 6, 2020, granted, now 11,410,715.
Prior Publication US 2022/0375509 A1, Nov. 24, 2022
Int. Cl. G11C 11/00 (2006.01); G11C 11/406 (2006.01); G06F 3/06 (2006.01); G11C 29/52 (2006.01); H01L 25/065 (2023.01)
CPC G11C 11/40611 (2013.01) [G06F 3/0604 (2013.01); G06F 3/0659 (2013.01); G06F 3/0673 (2013.01); G11C 11/40615 (2013.01); G11C 11/40618 (2013.01); G11C 29/52 (2013.01); G11C 2211/4061 (2013.01); G11C 2211/4062 (2013.01); H01L 25/0655 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An apparatus, comprising:
a memory array;
a refresh control circuit coupled to the memory array, the refresh control circuit configured to:
track a set of disturbed rows to be refreshed according to received commands;
receive from an external circuit a refresh management (RFM) command intended to initiate a refresh management operation in the memory array, wherein the refresh management operation is configured to update a charge level of at least one row within the set of disturbed rows; and
in response to the received RFM command, generate an operation command separate from the intended refresh management.