IC substrate with over voltage protection function
US7528467B2 · kind B2 · utility
26Cited by
31References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 28, 2006 |
| Grant date | May 5, 2009 |
| Priority date | — |
| Expiry date | Sep 15, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/19106
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
The present invention relates to an IC substrate provided with over voltage protection functions and thus, a plurality of over voltage protection devices are provided on a single substrate to protect an IC chip directly. According to the present invention, there is no need to install protection devices at respective I/O ports on a printed circuit board to prevent the IC devices from damage by surge pulses. Therefore, the costs to design circuits are reduced, the limited space is efficiently utilized, and unit costs to install respective protection devices are lowered down.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.