Connection sheet and electrode connection structure for electrically interconnecting electrodes facing each other, and method using the connection sheet
US6338195B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 1999 |
| Grant date | Jan 15, 2002 |
| Priority date | — |
| Expiry date | Dec 27, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49144
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A connection sheet which firmly bonds electrodes that face each other together by interposing the connection sheet between the electrodes. The connection sheet comprises a first adhesive layer containing a first adhesive having an insulating property and a second adhesive layer containing a second adhesive having an insulating property and a conductive material and placed at least on one side of the first adhesive layer. At the same time of electrode connection, the second adhesive molten has a viscosity equal to or lower than that of the first adhesive when molten. When the electrodes are connected with this structure, the conductive material contained in the second adhesive layer is embedded in the first adhesive layer having relatively high melting viscosity, and part of the conductive material is trapped on the electrodes to be connected in contact therewith. Accordingly, the conductive material can be securely held between the electrodes. Further, since the region between adjacent protruding electrodes contains no air bubbles, connection reliability and excellent moisture resistance is ensured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.