Printed circuit board
US4960614A · kind A · utility
27Cited by
2References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 14, 1989 |
| Grant date | Oct 2, 1990 |
| Priority date | — |
| Expiry date | Jun 14, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2203/104
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for producing a circuit board involves printing a U.V. curable ink onto a substrate in a desired circuit pattern and curing the ink by exposing it to a pulsed U.V. source having an output in the region between 360 nm and 420 nm in a pulsing manner consisting of 5 to 8 one-half second exposure periods where each exposure period is followed by a non-exposure period of about 2 to 3 seconds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.