Patent ID: 8891303

Claim:
A method of operation in a storage device that includes a three-dimensional array of memory cells, including multiple blocks of memory cells, each block including a plurality of word lines arranged in different vertical positions relative to a substrate of the storage device, the method comprising: for a respective block of the multiple blocks, performing operations including: configuring the plurality of word lines corresponding to the respective block in a first configuration, wherein the first configuration includes a respective set of configuration parameters for each word line of the plurality of word lines determined at least in part on the vertical positions of each word line relative to the substrate of the storage device; while the plurality of word lines are configured in accordance with the first configuration, writing data to the respective block and reading data from the respective block; in response to detecting a first trigger condition as to a respective word line of the plurality of word lines, adjusting a first parameter in the respective set of configuration parameters corresponding to the respective word line; and after adjusting the first parameter in the respective set of configuration parameters corresponding to the respective word line, writing data to the respective word line and reading data from the respective word line.