Method and device for the treatment of printed circuit boards
US4611554A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 24, 1985 |
| Grant date | Sep 16, 1986 |
| Priority date | — |
| Expiry date | Jan 24, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K3/0085
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A device and method for the treatment of printed circuit boards with process solutions, in which the boards being treated are continually vertically moved by a transporting conveyer above an accumulating reservoir and below spraying nozzles which apply a process solution to the side surfaces of each board. Two collecting receivers are arranged in mirror-inverted relationship at two sides of the boards being treated. The reservoir, into which the process solution drains from the receivers and the boards, is connected to the spraying nozzles by tubular conduits, provided with regulating valves, in a closed circuit, whereby the accumulated solution is fed back to the nozzles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.