A nonvolatile semiconductor memory device includes nonvolatile memory cells (C), constant voltage circuits for applying one of different verify voltages to control gates of the nonvolatile memory cells C in response to control data introduced into the memory device from the exterior, and writing and...http://www.google.fr/patents/US6414893?utm_source=gb-gplus-shareBrevet US6414893 - Nonvolatile semiconductor memory device and method of using the same
Nonvolatile semiconductor memory device and method of using the same
