Method and apparatus for testing circuit boards
US7188037B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 20, 2004 |
| Grant date | Mar 6, 2007 |
| Priority date | — |
| Expiry date | Sep 23, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/2806
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention provides a method of apparatus for testing circuit boards which does not require any inner wide power plane so as to detect an open circuit defect and/or a short circuit defect in a conductor path network formed in the circuit board quickly and accurately. An apparatus for testing a circuit board according to the present invention includes a transmission unit (2) for transmitting electromagnetic (radio) wave signal by way of an antenna (1) to a circuit board (3) to be tested, a detecting unit (3) for detecting signal received by a conductor path (4) of the circuit board (3) by using the conductor path (4) as a receiving antenna, and compare unit (8) for determining whether or not there is an open circuit defect or a short circuit defect in the conductor path (4) by comparing the detected signal with reference data of corresponding to a conductor path not including any defect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.