| 摘要 |
PROBLEM TO BE SOLVED: To provide a circuit inspections tool for electronic circuit board capable of exhibiting electric connection reliability without reducing the flow-up property of a conductive rubber to an electrode in a wiring pattern even if the conductive rubber with a high hardness is used. SOLUTION: In this circuit inspection tool for the electronic circuit board, characteristics of the electronic circuit board 1 are inspected by applying voltage between the electronic circuit board 1 and the circuit inspection tool 10. The electronic circuit board 1 is constructed of a base board 2, a wiring pattern layered on the base board 2, a resist printed layer 5 for protecting the wiring pattern, and a pad conducted with the wiring pattern formed on the base board 2. The circuit inspection tool 10 is constructed into a multilayer structure consisting of a conductive rubber layer 11 facing the resist printed layer 5 and a rubber layer 12 for the conductive rubber layer 12. A projection piece 14 to be crimped to the electrode 4 of the wiring pattern via an aperture 6 in the resist printed layer 5 is formed in the conductive rubber layer 11, while the width of the projection piece 14 is set 1.4 times of the aperture width or less, and a break in wiring is inspected by short-circuiting the wiring pattern by crimping the matching projection piece 14 to the electrode 4.
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