Electronic parts loaded module including thermal stress absorbing projecting electrodes
US5422516A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 8, 1992 |
| Grant date | Jun 6, 1995 |
| Priority date | — |
| Expiry date | May 8, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2203/0577
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
An electronic parts loaded module comprises a circuit board having electronic parts connected thereto via a plurality of projecting electrodes, in which two or more of the plurality of projecting electrodes for connecting the electronic parts have a narrowed portion between one end adjacent to the boundary for connection with the electronic parts and the other end adjacent to the boundary for connection with the board, the narrowed portion having a cross-section which has different dimensions in crossing directions, or a minor axis and a major axis different in length from each other. The projecting electrodes are disposed in a manner as the larger dimension or the major axis being aligned along the periphery or the side of the electronic parts, or as surrounding the central area of the surface, on which the electronic parts are loaded. The module can be used in IC cards and liquid crystal display apparatuses and the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.