About MCT Technology
Flagship MCT Technology
Sofradir has pioneered and manufactured advanced infrared detectors (IR) based on Mercury Cadmium Telluride (MCT) technology and Quantum-Well Infrared Photodetectors (QWIP) for major military programs, satellite and space missions, as well as commercial applications since 1986, bringing customers a legacy in skills and experience.
MCT technology has qualities superior to other semiconductor materials used to make IR detectors, notably in its ability to produce IR detectors in all wavelengths: from the visible to 1 – 3 micron (SWIR), 3 – 5 micron (MWIR) 8 – 12 micron (LWIR) and 12 – 15 micron (VLWIR) and beyond.
The key advantages of Sofradir’s MCT technology are:
- A large MCT (HgCdTe) wafer size and quality, up to 4-inch wafers, enabling larger format Focal Plane Arrays (FPA).
- A silicon-like ion implantation process that is high yield and proficient at controlling the pixel diodes and accuracy of the indium bump positioning.
- A unique hybridization technology, which is flexible and enables the manufacturing of MCT detectors, as well as QWIP detectors or even Indium Gallium Arsenide (InGaAs) or InSb based detectors.
- An ability to operate within a wide range of temperatures, from 90 to 100 K (-183 to -173 °C) for LW to 110 to 130 K (-163 to -143 °C) for MW and close to ambient temperature for SW.
- A small pitch technology for higher resolution and greater cost reductions.
- Inherent ability to design completely new customized production for specific missions.