| 摘要 |
PROBLEM TO BE SOLVED: To provide a circuit inspection device capable of positively and easily detecting a defection of a circuit board. SOLUTION: When inspecting common patterns 20 at least with end parts arranged in a row and mutually connected base parts and a flow pattern group 30 arranged between row like patterns of the common patterns 20 and not connected to other patterns, alternating current signals are alternately fed to both patterns, others are connected to a grounding level, and the alternating current signals are detected by sensors 131, 132, and 133 arranged in other end parts.
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