Catalyzed metal foil and uses thereof to produce electrical circuits
US12063748B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2021 |
| Grant date | Aug 13, 2024 |
| Priority date | — |
| Expiry date | Nov 1, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2203/1415
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Systems, methods, and devices related to catalyzed metal foils are disclosed. Contemplated metal foils have a bottom surface, preferably roughened to Ra of at least 0.1 μm, bearing a catalyst material. The metal foils are etchable, typically of aluminum or derivative thereof, and is less than 500 μm thick. Methods and systems for forming circuits from catalyzed metal foils are also disclosed. The catalyst material bearing surface of the metal foil is applied to a substrate and laminated, in some embodiments with a thermoset resin or thermoplastic resin therebetween or an organic material first coating the catalytic material. The metal foil is removed to expose the catalyst material, and a conductor is plated to the catalyst material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.