Single-chip system having electrostatic discharge (ESD) protective circuitry including a single bipolar transistor portion
US5923079A · kind A · utility
16Cited by
6References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 28, 1997 |
| Grant date | Jul 13, 1999 |
| Priority date | — |
| Expiry date | Nov 28, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D89/60
Abstract
To protect a system efficiently from static electricity and electrostatic discharge (ESD) and thereby prevent the system from becoming defective, a system formed on a first conductivity-type semiconductor substrate includes a pad for receiving a signal, a protection element connected to the pad, and a discharge line connected to the protection element. The protection element includes a single bipolar transistor portion and at least one diode portion located adjacent to the bipolar transistor portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.