Patent ID: 8072791

Claim:
A method of making a nonvolatile memory device, comprising: forming a first electrode; forming at least one nonvolatile memory cell comprising a silicon, germanium or silicon-germanium diode; intentionally doping at least a portion of the diode with at least one of nitrogen or carbon, wherein a concentration of carbon in the diode is lower than 1Ã—10 21 cm âˆ’3 and a concentration of nitrogen in the diode is lower than 1Ã—10 21 cm âˆ’3 , and wherein the diode has a leakage current of less than 4Ã—10 âˆ’10 A at âˆ’5.5 V in a high resistivity, reset state; and forming a second electrode over the at least one nonvolatile memory cell.