Circuit board
US4644093A · kind A · utility
9Cited by
6References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 17, 1985 |
| Grant date | Feb 17, 1987 |
| Priority date | — |
| Expiry date | Oct 17, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/0002
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A circuit board comprises a substrate made of a semi-insulating or insulating material, an insulating layer formed on the substrate and having a lower dielectric constant than the dielectric constant of the substrate, and a plurality of wiring conductors formed at predetermined intervals on the insulating layer. The insulating layer has a thickness determined according to the distance between adjacent wiring conductors and equal to 0.5 to 2.5 times the distance noted above, for the purpose of reducing cross-talk noise.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.