Printed circuit board
US10881000B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2020 |
| Grant date | Dec 29, 2020 |
| Priority date | — |
| Expiry date | Feb 26, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2203/308
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A printed circuit board includes a core layer having a first surface and a second surface opposing the first surface; a first built-up structure disposed on the first surface of the core layer; a second built-up structure disposed on the second surface of the core layer; and a first penetration portion penetrating the first built-up structure and the core layer and penetrating a portion of the second built-up structure. The first penetration portion has a step portion on at least a portion of a wall of the first penetration portion in the region of the first penetration portion penetrating the second built-up structure, and a region including the first penetration portion on a plane is configured as a flexible region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.