Oxygen sensor

  • Inventors:
  • Assignees: Fuji Electric Co Ltd
  • Publication Date: December 10, 1981
  • Publication Number: JP-S56160648-A

Abstract

PURPOSE:To simplify manufacture by a method wherein a pair of electrodes are prepared in parallel on a ceramic substrate and between said electrodes a transition metal oxide thick film resistor substance is formed to connect a terminal conductor with a pair of said electrode from the back side of substrate. CONSTITUTION:On the diagonals of a square substrate 11 consisting of aluminium oxide a straight hole 12 is provided and on the surface thereof platinum paste is printed and fired to form a platinum electrode thick film 13. On said thick film 13 a porous titanium dioxide thick film resistor 14 as well as the second layer 15 of the platinum electrode thick film are screen-printed to be formed by simultaneous burning. Said second layer 15 is provided for securing the connection of the titanium dioxide film with the electrode to reduce the connection resistance. Next, an iron nickel alloy line 16 is introduced through the straight hole 12, the tip thereof is bent to contact the platinum electrode film 13 to be adhered with adhesives. Thereafter magnescia spinel is fuse-spray by plasma on the preheated substrate to form a porous protective film 18.

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Cited By (2)

    Publication numberPublication dateAssigneeTitle
    US-6040754-AMarch 21, 2000Uchihashi Estec Co., Ltd.Thin type thermal fuse and manufacturing method thereof
    US-7477130-B2January 13, 2009Littelfuse, Inc.Dual fuse link thin film fuse