Method of manufacturing an electronic calculator utilizing a flexible carrier
US4081898A · kind A · utility
23Cited by
6References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 5, 1976 |
| Grant date | Apr 4, 1978 |
| Priority date | — |
| Expiry date | May 5, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49105
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Electronic calculators are manufactured by use of a flexible insulative carrier, the carrier being a tape-like-plastic substrate a single length of which is sufficient to manufacture a plurality of the electronic calculators, wherein conductor patterns are formed on the carrier, a keyboard is formed on the carrier using selected portions of the aforementioned conductors as keyboard switch contacts and semiconductor devices are interconnected with selected conductors formed on the carrier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.