Wednesday, September 16, 2009

Graphit memory chips

Researchers are testing the use of graphite as a storage medium in new chip designs.  These new chips won't be ready for another 10 years, but they will bring with them some interesting benefits.  They are comparable to flash memory, where as there aren't any moving parts, graphite chips will have 10 times the storage capacity and won't wear out as quickly.

"A graphite memory cell is composed of sheets of graphite deposited between two electrodes. The two-electrode design of graphitic memory differs from that of flash memory, which requires a "source," a "drain," and a "gate" to hold electric charge--essentially the bits of data. Because flash memory must store charge on the gates, which tend to leak, the cells wear out over time. "

Researchers have also been experimenting with graphene and carbon nanotubes, but manufacturing processes which involve these two components are considerably slower than graphite.

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