Ceramic substrate for a light emitting diode where the substrate incorporates ESD protection
US7279724B2 · kind B2 · utility
48Cited by
12References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2004 |
| Grant date | Oct 9, 2007 |
| Priority date | — |
| Expiry date | May 30, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49171
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A metal oxide varistor comprising one or more zinc oxide layers is formed integral to a ceramic substrate to provide ESD protection of a semiconductor device mounted to the substrate. The portion of the ceramic substrate not forming the varistor may be aluminum oxide, aluminum nitride, silicon carbide, or boron nitride. The varistor portion may form any part of the ceramic substrate, including all of the ceramic substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.