Integrated circuit protected against electrostatic overvoltages
US5515225A · kind A · utility
20Cited by
4References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 4, 1994 |
| Grant date | May 7, 1996 |
| Priority date | — |
| Expiry date | Aug 4, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D89/611
Abstract
A circuit protects pads of an integrated circuit having a plurality of power supply sources against electrostatic overvoltages. Each power supply is connected between a high voltage pad and a low voltage pad. Each pad of the circuit, as well as each power supply pad, is connected to the anode of a first diode having its cathode connected to a first conductive bus, and to the cathode of a second diode having its anode connected to a second conductive bus. A unidirectional clipping device is connected by its cathode to the first bus and by its anode to the second bus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.