Ohmic contacts to n-type silicon-germanium

S. F. Nelson, Thomas Nelson Jackson

Research output: Contribution to journalArticlepeer-review

Abstract

We have studied both alloyed metal and ion-implanted Ohmic contacts to n-type silicon/silicon germanium heterostructures. We found that gold/antimony contacts can distort low temperature mobility measurements, and seriously degrade a sample after a short time. A more reliable alternative alloy is silver/antimony. We also found phosphorous ion-implanted contacts, annealed to 600°C for 30 min, to be reliably Ohmic and of low resistivity at low temperatures.

Original languageEnglish (US)
Number of pages1
JournalApplied Physics Letters
StatePublished - Dec 1 1995

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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