Non volatile memory device and operating method fo the same

The present invention relates to a nonvolatile memory device and method of operation thereof, the operating method for a nonvolatile memory device according to the present invention includes the steps of counting a number of times subsequently verify without pre-charging; Sensing a temperature; And verify the number of times exceeds the predetermined number of times, and a step of adjusting the bias voltage level sensing according to the sensed temperature. Non-volatile memory, fast berry pie, a bit line