Cathodic photoresist stripping process
US6436276B1 · kind B1 · utility
3Cited by
2References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 6, 2000 |
| Grant date | Aug 20, 2002 |
| Priority date | — |
| Expiry date | Oct 6, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/425
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A novel photoresist stripping process is disclosed. Specifically, it has been found that if a printed wiring board panel having photoresist on its surface is used as a cathode during electrolysis in an alkaline solution, the result is a rapid and complete photoresist removal with minimal sheeting of removed photoresist and no evidence of chemical attack upon metallic traces on the printed wiring board.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.