Darlington transistors
US4604640A · kind A · utility
1Cited by
0References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 1, 1984 |
| Grant date | Aug 5, 1986 |
| Priority date | — |
| Expiry date | Oct 1, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D84/642
Abstract
In a darlington transistor having an integrated resistor connected from base to emitter of the output transistor element, the effect of the diode between collector and emitter formed when the resistor consists of an extension to the base region is reduced by forming at least part of the resistor either as an extension to the emitter region or as a separate region of the same conductivity type and connected to it. The resistor formed by the emitter region material appears in series with the diode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.