Patent ID: 11894062
Assignee: SANDISK TECHNOLOGIES, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 6:
7. The memory apparatus as set forth in claim 5, wherein the control means, during a detection period of time, is further configured to:
apply a bit line detect voltage being less than the inhibiting voltage to unselected ones of the of the plurality of bit lines associated with the ones of the memory cells connected to the at least one dummy word line having the threshold voltage not being below the predetermined detection voltage threshold and to selected ones of the plurality of bit lines associated with the ones of the memory cells connected to the at least one dummy word line having the threshold voltage being below the predetermined detection voltage threshold;
apply a control gate voltage to selected ones of the at least one drain-side select gate transistor associated with the ones of the memory cells connected to the at least one dummy word line having the threshold voltage being below the predetermined detection voltage threshold to turn on the selected ones of the at least one drain-side select gate transistor while applying approximately zero volts to unselected ones of the at least one drain-side select gate transistor associated with the ones of the memory cells connected to the at least one dummy word line having the threshold voltage not being below the predetermined detection voltage threshold to turn off the unselected ones of the at least one drain-side select gate transistor;
apply a read voltage to the at least one dummy word line associated with the ones of the memory cells connected to the at least one dummy word line having the threshold voltage not being below the predetermined detection voltage threshold;
apply the predetermined detection voltage threshold to the at least one dummy word line and determine whether the ones of the memory cells connected to the at least one dummy word line have the threshold voltage above the predetermined detection voltage threshold; and
apply the control gate voltage to the at least one source-side select gate transistor to turn on the at least one source-side select gate transistor.