Patent ID: 9318220
Filing Date: 2016-04-19
CPC Classification: G06F,G11C

Claim Text:
1. A method for memory cell coupling compensation, comprising: determining a state of a memory cell by sensing the memory cell with a first voltage that is changed in accordance with a first memory cell coupling compensation voltage; performing an error check on the state of the memory cell; determining a threshold voltage difference between a first number of memory cells of a target page coupled to memory cells programmed to a first program state and a second number of memory cells of the target page coupled to memory cells programmed to a second program state; and determining the state of the memory cell by sensing the memory cell with a second voltage that is changed in accordance with a second memory cell coupling compensation voltage in response to the error check failing, wherein the second memory cell coupling compensation voltage is based on the determined threshold voltage difference between the first number of memory cells of the target page coupled to memory cells programmed to the first program state and the second number of memory cells of the target page coupled to memory cells programmed to the second program state.