Systems and methods for manufacturing thin substrate
US12035466B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2021 |
| Grant date | Jul 9, 2024 |
| Priority date | — |
| Expiry date | Jun 23, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/0376
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Printed circuit boards (PCB) used to mechanically and electrically connect electrical components within an electronic device. Thin printed circuit boards (PCB) may be desirable to manufacturers and users of electronic devices. Accordingly, a process for manufacturing a printed circuit board may involve manufacturing a thin bilayer dielectric. The process may involve applying a first non-conductive layer to a metal substrate, and curing the first non-conductive layer to a C-stage resin layer that is fully cross-linked layer in a clean environment. In turn, a B-stage layer that is partially cured may be applied to the C-stage resin layer. Using a hot press, one or more metal traces may be pressed onto the B-stage layer. The B-stage resin layer may be fully cross-linked and integrated with the C-stage resin layer after lamination of the one or more metal traces and the B-stage resin layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.