Diode fabrication for ESD/EOS protection
US6770938B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 16, 2002 |
| Grant date | Aug 3, 2004 |
| Priority date | — |
| Expiry date | Jan 16, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D89/611
Abstract
An ESD protection device is provided for an integrated circuit. The ESD protection device includes a power supply clamp device formed from a diode and coupled between a first power supply VCC and a second power supply VSS. An input protection device is also provided which is formed from a diode coupled between an input pad and the first power supply and a second diode coupled between the input pad and a second power supply. The diodes have an adjusted reverse breakdown voltage that is higher than the voltage supply VCC used to power the peripheral circuitry that drives circuitry within a core of the integrated circuit. The adjusted reverse breakdown voltage is also lower than the breakdown voltage of gate oxide layers used within the peripheral circuitry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.