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THERMAL DETECTOR AND METHOD OF MAKING THE SAME

  • US 3,801,949 A
  • Filed: 03/08/1973
  • Issued: 04/02/1974
  • Est. Priority Date: 03/08/1973
  • Status: Expired due to Term
First Claim
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1. A thermal detector device comprising a flat substrate having opposed surfaces and an opening in one of said surfaces, a layer of a material having a thermal resistance to the flow of heat along the plane of the layer on said one surface of the substrate and extending over said opening, and a body of a thermally sensitive material on said layer and positioned only over said opening in said substrate with the periphery of the body being spaced from the periphery of the opening.

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