Process for use in rapidly producing printed circuit boards using a computer controlled plotter
US4720798A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 16, 1985 |
| Grant date | Jan 19, 1988 |
| Priority date | — |
| Expiry date | Apr 16, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49156
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A conductor clad board from which the printed circuit board is produced is operatively retained for manipulation in a plotter controlled by a computer. Etchant-resist material is laid down in a printed circuit conductor pattern on at least one conductive sheet of the board by a marking instrument operatively manipulated by the plotter. The computer controls the application of the resist material in accordance with printed circuit board computer aided design information in the computer memory. Both conductive sheets of the board can be marked with resist after establishing the orientation of the board so the printed circuit patterns on opposite sides of the board occupy a predetermined aligned relationship. After etching, the board is again retained in the plotter and holes are drilled through the board by using drill apparatus operatively adapted for use and manipulation by the plotter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.