Infrared detector devices and focal plane arrays having a transparent common ground structure and methods of fabricating the same
US10714531B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 4, 2018 |
| Grant date | Jul 14, 2020 |
| Priority date | — |
| Expiry date | May 4, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F77/146
Abstract
Focal plane arrays and infrared detector device having a transparent common ground structure and methods of their fabrication are disclosed. In one embodiment, a front-side illuminated infrared detector device includes a contact layer and a detector structure adjacent to the contact layer. The detector structure is capable of absorbing radiation. The front-side illuminated infrared detector device further includes a common ground structure adjacent the detector structure, wherein the common ground structure is transmissive to radiation having a wavelength in a predetermined spectral band, and the common ground structure has a bandgap that is wider than a bandgap of the detector structure. The front-side illuminated infrared detector device further includes an optical layer adjacent the common ground structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.