| Popis: |
In this work a breakthrough in the field of low-cost uncooled infrared detectors is presented: an 80x80 FPA of VPD PbSe with MWIR detection in uncooled operation. The new device represents a milestone in the road towards affordable uncooled MWIR imagers, once the Vapor Phase Deposition PbSe technology (aka VPD PbSe) has reached the industrial maturity. The devices presented in this work, in which the active material has been monolithically integrated with the corresponding Si-CMOS readout circuitry (ROIC), were processed on 200-mm Si wafers with excellent results in terms of manufacturing yield and repeatability. Fast speeds of response and high frame rates were, until date, non-existing performances in the low-cost uncooled IR imagers domain: this new detector fills the gap, being capable to provide MWIR images with rates as high as 2 KHz, full frame, snapshot imaging and real uncooled operation. The technology opens the MWIR band to SWaP concept. |
