Uses of uniaxially electrically conductive articles
US5637925A · kind A · utility
13Cited by
20References
22Claims
0Family size
Inventors
Key dates
| Filing date | Jan 21, 1993 |
| Grant date | Jun 10, 1997 |
| Priority date | — |
| Expiry date | Jan 21, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2203/107
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The present concepts include "1:1" uniax (40) with one conductive through-hole per chip connection site, "mirror chip" testing, heat-sink bonding to chips, avoiding contact with conductive cleaved edge of chip, indium solid columns, metal recessed (41) in the through-holes. All of these are subject to preferred materials (UPILEX polyimide) and techniques (U.V. laser ablation, minimum taper of holes).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.