Automatic circuit board tester
US4240750A · kind A · utility
34Cited by
3References
2Claims
0Family size
Inventors
Key dates
| Filing date | Oct 2, 1978 |
| Grant date | Dec 23, 1980 |
| Priority date | — |
| Expiry date | Oct 2, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/309
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An automatic printed circuit board tester in which a laser beam is directed onto and scanned around solder pads and foil regions of a printed circuit board, and errors in structure are determined by detecting patterns of scattered light and comparing these patterns with similarly obtained ones from a properly constructed board.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.