Semiconductor apparatus
US8633723B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 10, 2011 |
| Grant date | Jan 21, 2014 |
| Priority date | — |
| Expiry date | Jan 25, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D84/83
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A semiconductor apparatus according to aspects of the invention includes a power MOSFET including a main MOSFET and sensing MOSFET's. The main MOSFET and the sensing MOSFET's are formed on a semiconductor substrate, and a sensing MOSFET is selected for changing the sensing ratio and further for confining the sensing ratio variations within a certain narrow range stably from a low main current range to a high main current range. A semiconductor apparatus according to aspects of the invention facilitates reducing the manufacturing costs thereof, obviating the cumbersomeness caused in the use thereof, and confining the sensing ratio variations within a certain narrow range stably.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.