The HgCdTe material with the size of 30 mm×25 mm is processed by the double-surface flattening process.After processing,the total thickness variation(TTV) is lower than 2 μm,which meets the demand of Si ROIC flip chip,and the flip chip bonding yield of MW1280×1024 focal plane arrays(FPA) is remarkably improved.
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李春领,王春红,秦艳红.碲镉汞材料双面平坦化工艺研究[J].激光与红外,2017,47(8):992~995 LI Chun-ling, WANG Chun-hong, QIN Yan-hong. Study on double-surface flattening process of HgCdTe material[J]. LASER & INFRARED,2017,47(8):992~995