⚡ 本页包含 AI 生成的分析内容，仅供参考
该论文提出了一款320×256像素、25μm像素间距的红外图像传感器，通过优化CMOS读出电路（ROIC）的电荷处理能力，实现了90dB的信噪比（SNR），解决了传统红外传感器在热成像条件下因电荷容量限制导致的SNR瓶颈问题。
cooled Infrared (IR) HgCdTe (Mercury Cadmium Telluride) hybrid sensors (detector bump-bounded over the CMOS IC) are very demanding in term of SNR (typical state-of-the-art values are in the 70to-80dB range [1,2]). Considering the photodiode shot noise (photon noise) as the main noise contribution, the SNR equals to the square root of the average number of collected photons. Thus the detector sensitivity can be limited either by the incident number of photons during one frame or by the CMOS readout IC (ROIC) charge-handling capacity. In many thermal imaging conditions, this second point predominates. This limited charge-well capacity is determined by 2 CMOS process constraints: (1) the integration capacitance that has to be fitted
Arnaud Peizerat1, Fabrice Guellec1, M. Tchagaspanian1,
Eric De Borniol1, Sylvette Bisotto1, Patrick Maillard2 1 CEA-LETI-MINATEC, Grenoble, France, Sofradir, Chatenay-Malabry, France 2 Used in security and defense applications