Patent ID: 8223553

Claim:
A memory device, comprising: a hole injection-type memory cell having a source and a drain, the hole injection-type memory cell configured to generate a sense current in response to a sense voltage applied to the hole injection-type memory cell, wherein the source is operable to allow current to flow between the source and the substrate and is operable to store bits, and wherein the drain is operable to allow current to flow between the drain and the substrate and is operable to store bits; and an amplifier unit coupled with the hole injection-type memory cell, the amplifier unit configured to amplify the sense current generated by the hole injection-type memory cell, wherein the sense current is generated by current flow from a substrate to one of a source and a drain of the hole injection-type memory cell, wherein the current flow is between the substrate and only the one of the source and the drain of the hole injection type memory cell.