Patent ID: 8097872

Claim:
A system comprising: a system memory; a processor; a bus that interconnects the system memory, the processor, and the integrated circuit memory device; and an integrated circuit memory device, the integrated circuit memory device comprising a controller that interfaces the integrated circuit memory device to the bus, the integrated circuit memory device having memory cells comprising: a transistor comprising a channel, a gate dielectric layer, a gate electrode, and a modifiable insulating layer disposed under the gate electrode and with at least a portion of the modifiable insulating layer in contact with the gate dielectric layer, wherein information stored in the memory cell depends on a changeable conductivity of the modifiable insulating layer, wherein the modifiable insulating layer comprises a low conductivity material, and further comprises a highly conductive filament in the low conductivity material changes a conductivity of the modifiable insulating layer, wherein the modifiable insulating layer further comprises an sp 3 -rich carbon layer, and wherein the highly conductive filament comprises an sp 2 -rich carbon filament formed in the sp 3 -rich carbon layer.