Patent ID: 9368218
Filing Date: 2016-06-14
CPC Classification: G11C

Claim Text:
1. A method for erasing information stored in a flash memory device, comprising: receiving a fast erase signal to erase one or more groups of flash memory cells in the flash memory device; switching, by a flash memory controller, operating parameters of the flash memory device from first parameters corresponding to a first erase mode to second parameters corresponding to a second erase mode based on receiving the fast erase signal, the first erase mode for erasing the one or more groups of flash memory cells using a plurality of erase pulses and the second erase mode for erasing the one or more groups of flash memory cells using a single erase pulse, wherein an erase operation in the first erase mode is an incremental stepping pulse erase operation and the flash memory device is configured to perform the erase operation in the first erase mode by default; and instructing the flash memory device to perform an erase operation to erase the one or more groups of flash memory cells according to the second parameters.