Apparatus for use in preparing a printed circuit board and photosensitive ink for in an ink jet printer
US11596070B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 11, 2020 |
| Grant date | Feb 28, 2023 |
| Priority date | — |
| Expiry date | Feb 11, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2203/0551
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus is used in preparing a printed circuit board (PCB). The apparatus can include a common chassis, an inkjet printer mounted on the common chassis, and a pattern exposer mounted on the common chassis. The inkjet printer can selectively print unexposed photosensitive patterns on a PCB substrate with a photosensitive ink. The pattern exposer can expose said photosensitive patterns to radiation thereby defining exposed patterns. A photosensitive ink for use in an ink jet printer can include a photoresist, a solvent, a humectant, a surfactant, an adhesion promoter, and a basic solution. The adhesion promoter is operative to increase anisotropy of a wet etching process of a copper component on which said photosensitive ink is printed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.