Implication logic and the synapse
Williams compared HP's resistive RAM technology against flash and claimed to meet or exceed the performance of flash memory in all categories. Read times are less than 10 nanoseconds and write/erase times are about 0.1-ns. HP is still accumulating endurance cycle data at 10^12 cycles and the retention times are measured in years, he said.
One of the best things about the memristor memory is that it is a simple structure made using materials that are already common in the world's wafer fabs making CMOS-compatible devices relatively straight forward, he said.
This creates the prospect of adding dense non-volatile memory as an extra layer on top of logic circuitry. "We could offer 2-Gbytes of memory per core on the processor chip. Putting non-volatile memory on top of the logic chip will buy us twenty years of Moore's Law, said Williams.
Further out Williams said the memristor could be used for computation under a scheme called "implication logic" in a fraction of the area taken up in CMOS by Boolean logic. In addition a memristor device is a good analog of the synapse in brain function.
In conclusion Williams stressed that HP would not be getting into the semiconductor components business but would seek to commercialize and then license the technology to all comers.
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