Patent ID: 7053406

Claim:
An one-time programmable read only memory, comprising: a first electrically conductive type semiconductor substrate; a second electrically conductive type doping region disposed in the first electrically conductive type semiconductor substrate; a first electrically conductive type first doping layer disposed in the first electrically conductive type semiconductor substrate above the second electrically conductive type doping region; a first electrically conductive type second doping layer disposed between the second electrically conductive type doping region and the first electrically conductive type first doping layer, wherein the first electrically conductive type second doping layer has a linear structure and serves as a bit line; an electrically conductive layer disposed over the first electrically conductive type doping region, wherein the first electrically conductive layer has a linear structure that crosses over the first electrically conductive type first doping layer; a second electrically conductive type first doping layer disposed in the first electrically conductive type semiconductor substrate between the electrically conductive layer and the first electrically conductive type first doping layer; and an anti-fuse layer disposed between the electrically conductive layer and the second electrically conductive type first doping layer.