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Method and apparatus for testing circuit boards

  • US 7,188,037 B2
  • Filed: 08/20/2004
  • Issued: 03/06/2007
  • Est. Priority Date: 08/20/2004
  • Status: Active Grant
First Claim
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1. Apparatus for testing a circuit board including at least one conductor path, comprising:

  • a transmission unit having an antenna for transmitting electromagnetic wave signal to the circuit board, wherein said antenna has a loop coil shape, and the circuit board is positioned in the antenna and perpendicular to the magnetic field induced by the electromagnetic wave signal transmitted from the antenna;

    a detecting unit for detecting the electromagnetic wave signal received from the conductor path of the circuit board; and

    a compare unit for comparing the electromagnetic wave signal received from the conductor path with reference data corresponding to the conductor path so as to detect a defect in the circuit board.

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