Method for making a three-dimensional liquid crystal polymer multilayer circuit board including membrane switch including air
US10818448B2 · kind B2 · utility
2Cited by
35References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2018 |
| Grant date | Oct 27, 2020 |
| Priority date | — |
| Expiry date | Nov 4, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4913
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method is for making an electronic device including forming a multilayer circuit board having a non-planar three-dimensional shape defining a membrane switch recess therein, the multilayer circuit board including at least one liquid crystal polymer (LCP) layer, and at least one electrically conductive pattern layer thereon defining at least one membrane switch electrode adjacent the membrane switch recess to define a membrane switch. The method also includes filling the membrane switch recess with air, and positioning at least one biasing member in the membrane switch recess.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.