| 摘要 |
PROBLEM TO BE SOLVED: To provide a connector part structure of a membrane circuit which can prevent migration of a conductive material generated at the connector insertion-coupling part. SOLUTION: Wirings 3a to 3c formed at a tail part 1 of a membrane switch are each formed of Ag paste in width 35μm and at 0.5 mm pitch on an insulation film by a screen printing method or the like, on which an insulation 2b is laminated. The insulation film 2b is not laminated at a tip side of the tail part 1 forming a connector part of the wirings 3a to 3c. Since the wirings 3a to 3c of this part are normally exposed, they are to be protected by forming a protective film 6 of resin in stead, which is made in such a material and a film thickness that it is easily burst through by the terminal of a mating connector at time of insertion-coupling to realize an electric conduction.
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