Vertical hall sensor circuit comprising stress compensation circuit
US8723515B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 5, 2012 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Jul 5, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/0002
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A vertical Hall sensor circuit includes an arrangement comprising a vertical Hall effect region of a first doping type, formed within a semiconductor substrate and having a stress dependency with respect to a Hall effect-related electrical characteristic. The vertical Hall sensor circuit further includes a stress compensation circuit which comprises at least one of a lateral resistor arrangement and a vertical resistor arrangement for generating a stress-dependent lateral resistor arrangement signal based on a reference signal provided to the stress compensation circuit, and for generating a stress-dependent vertical resistor arrangement signal based on the reference signal, respectively. The vertical Hall sensor circuit further includes a first circuit for providing a first signal to the arrangement based on at least one of the stress-dependent lateral resistor arrangement signal and the stress-dependent vertical resistor arrangement signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.