Anisotropic conductive sheet and printed circuit board
US6121688A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 8, 1998 |
| Grant date | Sep 19, 2000 |
| Priority date | — |
| Expiry date | Oct 8, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/0215
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
An anisotropic conductive sheet material includes a resin and conductive fillers, such as metallic particles, added in the resin. A conductive layer is formed on one of the surfaces of the anisotropic conductive sheet material. A circuit board includes a substrate having first and second surfaces and a circuit pattern being formed on the first surface of the substrate, an anisotropic conductive sheet having first and second surfaces, a circuit pattern being formed on the first surface thereof. The second surface of the anisotropic conductive sheet is adhered to the first surface of the substrate in such a manner that the circuit patterns are electrically connected to each other by means of the anisotropic conductive sheet. An electrically insulative layer formed on the first surface of the anisotropic conductive sheet to cover the circuit pattern thereof, except that external connecting portions thereof are exposed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.