Stock material or miscellaneous articles – All metal or with adjacent metals – Composite; i.e. – plural – adjacent – spatially distinct metal...
Patent
1977-04-04
1979-08-14
Smith, John D.
Stock material or miscellaneous articles
All metal or with adjacent metals
Composite; i.e., plural, adjacent, spatially distinct metal...
75165, 75171, 338308, 338309, 427101, 427102, 427103, 427124, 428209, 428210, 428434, 428472, 428672, 428680, 428469, 428630, 428632, 428656, 428667, H01C 700, H01C 702, H01C 704
Patent
active
041646070
ABSTRACT:
High stability thin film resistors are made from an alloy comprising selected portions of nickel, chromium, and gold selected in a ratio to provide the desired temperature coefficient of resistance (TCR). The resistors are made by co-depositing gold with the nickel chromium alloy by a flash evaporation process. The evaporation process is carried out by feeding a nickel chromium wire, having a gold wire extending therealong to provide the desired composition, onto a heated tungsten strip within a vacuum system with substrates disposed in a position to obtain uniform deposition of the evaporated material thereon.
REFERENCES:
patent: 3296574 (1967-01-01), Tassara
patent: 3578420 (1971-05-01), Nishimura et al.
patent: 3833410 (1974-09-01), Ang et al.
patent: 3904461 (1975-09-01), Estep et al.
patent: 4019168 (1977-04-01), Collins
patent: 4021277 (1977-05-01), Shirn et al.
Maurer Edward H.
Thiel Ronald A.
General Dynamics Corporation Electronics Division
Smith John D.
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