10 - 11 May 2022 | London, UK
Imec will be present with a talk by Jiwoon Lee, R&D team lead on May 10 at 5:30pm. Making infrared imaging more accessible with quantum dots
Short-wavelength infrared (SWIR) wavelengths carry a lot of useful information relevant for new augmented vision applications in the connected world. Seeing in adverse weather conditions (automotive), discrimination of materials unrecognizable in the visible range (sorting), looking through Si (inspection) or seeing through sunglasses (security) are just some examples where infrared vision can add important cues.
Up to now, SWIR was limited to niche applications, as high-cost, flip-chip bonded imagers based on III-V detectors were the only option. Since recently, image sensors based on quantum dot (QD) absorbers are making large strides towards being an affordable alternative.
Thanks to a monolithic-hybrid approach, the pixel pitch is only limited by the readout circuit (and sub-2 um pixels have been demonstrated) and the resolution can be freely expanded to provide multi-megapixel focal plane arrays. External quantum efficiencies above 40% already now enable plethora of both passive and active illumination schemes. In this presentation, imec will update on the progress of QD-based image sensors for the SWIR range and present the approach towards wafer-level manufacturing which will enable volume upscaling and opening of new augmented vision implementations