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Thin film thermistor

  • US 4,424,507 A
  • Filed: 03/30/1982
  • Issued: 01/03/1984
  • Est. Priority Date: 04/10/1981
  • Status: Expired due to Term
First Claim
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1. A thin film thermistor comprising:

  • an insulating substrate having two surfaces;

    one pair of electroconductive electrode films arranged on one surface of said insulating substrate in a desired pattern, the electrodes being electrically insulated from each other;

    a thermally sensitive resistive film arranged on said one surface of said insulating substrate and said at least one pair of electroconductive electrode films, said film arranged so as to leave part of said electrodes exposed for making external connections thereto;

    one pair of external leads connected to said exposed electrode portions; and

    a metal housing in a cylindrical form having a bore extending along the longitudinal axis thereof and having both a closed end and an open end, wherein another surface of said insulating substrate is secured to the inner surface of said closed end by a brazing arrangement of an Ag-Cu alloy layer, one of a Ti and a Zr foil layer, and another Ag-Cu alloy layer, said layers arranged between said another surface of said insulating substrate and said inner surface of said closed end.

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