Indicating element and method of manufacturing same
US4019196A · kind A · utility
6Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 24, 1975 |
| Grant date | Apr 19, 1977 |
| Priority date | — |
| Expiry date | Oct 24, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F2013/222
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An indicating element comprises a base plate of P-type or N-type epitaxial crystals, a N-type or P-type indicating layer of diffusion or growth planarly formed on the base plate, and an electrode layer provided on the planar indicating layer and having a desired pattern thereon. The element is manufactured by forming an electrode on a rear surface of the base plate, forming the N-type or P-type planar indicating layer on an upper surface of the base plate by means of diffusion or crystal growth, and mounting on the planar indicating layer the electrode layer having the desired pattern thereon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.