Patent ID: 7499336

Claim:
A method of programming a nonvolatile memory cell formed between a first doping region and a second doping region of a semiconductor substrate, said nonvolatile memory cell comprising: a first conductive line formed above the semiconductor substrate, a first conductive block formed at a first side of the first conductive line and insulated from the first conductive line with a first dielectric spacer, a second conductive block formed at a second side of the first conductive line and insulated from the first conductive line with a second dielectric spacer, a first dielectric layer formed on both of the first conductive block and the second conductive block, and a second conductive line formed on the first dielectric layer and being substantially perpendicular to both of the first doping region and the second doping region; the method comprising: applying a high voltage to the second conductive line; applying a low voltage to the first conductive line; applying a first voltage to the first doping region; and applying a second voltage to the second doping region; wherein the first voltage is higher than the second voltage so that a second doping region injects electrons toward the first conductive blocks during programming of said nonvolatile memory cell.