大连理工大学电信学部生物医学工程学院辽宁省集成电路与生物医学电子系统重点实验室
纸质出版:2024
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王林峰, 余隽, 李中洲, 等. CMOS红外光源的设计与实现[J]. 传感器与微系统, 2024,(2):120-123+126.
王林峰, 余隽, 李中洲, 等. CMOS红外光源的设计与实现[J]. 传感器与微系统, 2024,(2):120-123+126. DOI: 10.13873/J.1000-9787(2024)02-0120-04.
基于红外气体传感器微型化、低成本和低功耗的发展需要,设计了一种用于非色散红外(NDIR)集成气体传感器的互补金属氧化物半导体(CMOS)红外光源。它以非等间隔的蛇形钨(W)薄膜电阻作为加热丝,以二氧化硅(SiO
2
)和氮化硅(Si
3
N
4
)多层复合介质薄膜为支撑形成悬空膜片式微热板,以氧化铜(CuO)和二氧化锰(MnO
2
)纳米材料复合薄膜作为辐射增强层。基于COMSOL软件进行了热电耦合仿真,证明结构设计合理性。采用标准CMOS工艺、硅(Si)的深刻蚀工艺以及静电流体动力学打印技术流片制造了该CMOS红外光源芯片。性能测试结果表明:该红外光源从室温升温至469℃的热响应时间约为41 ms
电功耗仅为138 mW
辐射区温度分布均匀,引入辐射增强层使表面比辐射率提高约35%
红外光源的辐射功率和红外光谱辐射强度测试结果表明:该涂层有效地增强了红外辐射。
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