Gate controlled lateral bipolar junction transistor
US5717241A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 20, 1994 |
| Grant date | Feb 10, 1998 |
| Priority date | — |
| Expiry date | Sep 20, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D84/409
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A gate controlled lateral bipolar junction transistor (GCLBJT) device for an integrated circuit and a method of fabrication thereof are provided. The GCLBJT resembles a merged field effect transistor and lateral bipolar transistor, i.e. a lateral bipolar transistor having base, emitter and collector terminals and a fourth terminal for controlling a gate electrode overlying an active base region. The device is operable as an electronically configurable lateral transistor. Advantageously a heavily doped buried layer provides a base electrode having a base contact which surrounds and encloses the collector. The surface region between emitter and collector is characterized by lightly doped regions adjacent and contiguous with the heavily doped emitter and collector, which effectively reduce the base width of the bipolar transistor and improve operation for analog applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.