Detecting structure formed on a PCB to detect unavailability of the lines
US6639396B2 · kind B2 · utility
0Cited by
3References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 26, 2001 |
| Grant date | Oct 28, 2003 |
| Priority date | — |
| Expiry date | Apr 3, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/2812
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A detecting structure formed on the space of circuit unit correctly and easily detects whether the lines of the circuit unit are formed on the correct position, and more particularly to obtain the deviation difference of a position provided to form the lines. The detecting structure is able to be formed on a space of periphery of each circuit unit, thus the detecting result is exactly correct.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.