G-TAB having particular through hole
US5065228A · kind A · utility
16Cited by
13References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 4, 1989 |
| Grant date | Nov 12, 1991 |
| Priority date | — |
| Expiry date | Apr 4, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/3011
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A thin, preferably flexible circuit having multiple conductive planes separated by a non-conductive layer is provided. Conductive vias electrically interconnect the conductive planes. The conductive vias comprise carbon coated blind vias which are made conductive by the electrolytic deposition of a metal on the carbon. The invention is particularly suited for G-TAB wherein a first metal plane is patterned into signal plane circuit traces and a second metal plane is patterned into ground plane traces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.