Anisotropic interposer pad
US5636996A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 1996 |
| Grant date | Jun 10, 1997 |
| Priority date | — |
| Expiry date | Feb 12, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K3/325
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An anisotropic interposer pad (10) disposed between a first surface (11) and a second surface (12) in an electrical interface wherein the interface surfaces (11, 12) are non-compatible metals. The interposer pad (10) is a plastic layer (20) and a plurality of spaced-apart electrically conducting particles (21) are disposed in a random pattern throughout the plastic layer (20). The particles (21) extend between the first side (22) of the plastic layer (20) and the second side (23) of the plastic layer (20). There is no lateral contact between any of the particles (21). The particles (21) are electrically conductive in a direction oriented between the first side (22) and the second side (23) of the plastic layer (20). The particles (21) act as an electrical connection between the first surface (11) and the second surface (12).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.