Claims
- 1. A semiconductor device comprising:
- a body including a region of P type indium phosphide, and
- a contact on said P type indium phosphide region, said contact comprising an alloy of gold, germanium and zinc in which the germanium is present in an amount of 11% to 14% by weight.
- 2. A semiconductor device in accordance with claim 1 in which the contact includes 2% to 5% by weight of the zinc.
- 3. A semiconductor device in accordance with claim 2 in which the contact includes 81% to 86% by weight of the gold.
- 4. A semiconductor device in accordance with claim 1 in which the body has a pair of opposed surfaces, the P type region extends to one of said surfaces, an N type region extends to the other surface.
- 5. A semiconductor device in accordance with claim 4 in which the contact includes 2% to 5% by weight of the zinc.
- 6. A semiconductor device in accordance with claim 5 in which the contact includes 81% to 86% by weight of the gold.
- 7. A semiconductor device in accordance with claim 4 including a second contact on said other surface, said second contact being of a conductive material which makes good ohmic contact with the material of the N type region.
Government Interests
The invention described herein was made in the performance of work under a NASA contract and is subject to the provisions of section 305 of the National Aeronautics and Space Act of 1958, Public Law 85-568 (72 L Stat. 435; 42 U.S.C. 2457).
US Referenced Citations (4)