Long wavelength infrared sensor and electronic device including the same
US12339170B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 9, 2022 |
| Grant date | Jun 24, 2025 |
| Priority date | — |
| Expiry date | Jan 19, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2005/202
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A long wavelength infrared sensor includes a first magnetoresistive unit; a second magnetoresistive unit; and a light absorption layer that absorbs light and emits heat, wherein the first magnetoresistive unit includes a first magnetoresistive element and a second magnetoresistive element electrically connected to each other, the second magnetoresistive unit includes a third magnetoresistive element and a fourth magnetoresistive element electrically connected to each other, the first and third magnetoresistive elements each have an antiparallel state of magnetization direction, the second and fourth magnetoresistive elements each have a parallel state of magnetization direction, and the first magnetoresistive element is electrically connected to the third magnetoresistive element by way of the second magnetoresistive element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.