Patent ID: 7433243
Filing Date: 2008-10-07
Classification: G11C,H01L

Abstract:
1. An operation method of a non-volatile memory, suitable for a memory cell formed in a first conductive type substrate, the memory cell comprising a gate formed on the first conductive type substrate, a second conductive type drain region and a second conductive type source region formed in the first conductive type substrate at two sides of the gate, a charge storage layer formed on the first conductive type substrate between the gate and the second conductive type drain region, and a second conductive type first lightly doped region formed in the first conductive type substrate between the gate and the second conductive type source region, in an operation with normal bias, the voltage that allowing the memory cell to have the maximum turn-on current being a 1 st voltage, the operation method comprising: injecting electrons or holes into the charge storage layer by using one of channel hot electron (hole) injection, band-to-band tunneling induced hot hole (electron) injection, drain avalanche breakdown induced hot hole injection, and channel hot carrier induced secondary carrier injection.