Abstract
Thin cermet films of gold and glass have been prepared by r.f. sputtering of the two components. The temperature coefficient of resistance (TCR) has been shown to lie within the commercially acceptable limits of ±250 ppm °C −1 over a wide range of sheet resistances. The drift rate of the films, as measured continuously under normal laboratory conditions, is extremely low. It is believed that transfer of electrons takes place by normal metallic conduction in capillaries and by quantum mechanical tunnelling between discrete islands in parallel with the capillaries.
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