Semiconductor integrated circuit device including a substrate bias controller and a current limiting circuit
US6867637B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2004 |
| Grant date | Mar 15, 2005 |
| Priority date | — |
| Expiry date | Jul 13, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F3/205
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
In a semiconductor integrated circuit device, for realizing high speed, as well as superior product yield rate and usability, while reducing circuit scale and improving on product yield rate and reliability thereof, a main circuit, constructed with CMOS elements, is coupled to a speed monitor circuit for forming a speed signal corresponding to an operating speed thereof and to a substrate bias controller for supplying corresponding substrate bias voltages to the main circuit in response to the speed monitor circuit. A current limiting circuit is also provided in conjunction with the substrate bias controller to prevent an overflow of current due to bias voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.