Patent ID: 11894073
Assignee: SANDISK TECHNOLOGIES, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 12:
13. The controller as set forth in claim 12, wherein the memory cells comprise a plurality of blocks, the controller further configured to:
determine whether all of the plurality of blocks have been checked for the at least one edge word line in response to a proactive refresh operation being triggered;
instruct the memory apparatus to end reprogramming the memory cells associated with the at least one edge word line without erasing the memory cells associated with the at least one edge word line in response to determining all of the plurality of blocks have been checked for the at least one edge word line;
instruct the memory apparatus to proceed to check one of the plurality of blocks for the at least one edge word line in response to determining not all of the plurality of blocks have been checked for the at least one edge word line;
determine whether each of the plurality of word lines of the one of the plurality of blocks is the at least one edge word line and whether the memory cells connected to the at least one edge word line contain the data;
return to determine whether all of the plurality of blocks have been checked for the at least one edge word line in response to determining at least one of the each of the plurality of word lines of the one of the plurality of blocks is not the at least one edge word line and the memory cells connected to the at least one edge word line does not contain the data;
return to determine whether all of the plurality of blocks have been checked for the at least one edge word line in response to determining the edge higher data state quantity is not less than an edge higher data state threshold; and
return to determine whether all of the plurality of blocks have been checked for the at least one edge word line following reprogramming the memory cells associated with the at least one edge word line without erasing the memory cells associated with the at least one edge word line.