Volpe and Koenig, P.C.
Programming selection devices in non-volatile memory strings
Non-volatile memory strings may include multiple selection devices for coupling memory cell devices to a bit line. Different programming operations may be used to program various individual selection devices in a non-volatile memory cells string. For example, a control circuit may set a threshold voltage of a particular selection device to a value greater than a threshold voltage of another selection device. In another example, the control circuit may program the selection device using an initial sense time. Subsequent to programming the selection device using the initial sense time, the control circuit may program the selection device using a different sense time that is shorter than the initial sense time.
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