基于聚酰亚胺绝热层的热释电红外探测器的二维热分析

ompared with several common view of the current uncooled infrared detector thermal-isolation structure, a new type of uncooled infrared detector with polyimide thermal-isolation structure is presented. Two-dimensional models of pyroelectric thin film infrared detectors with polyimide thermal-isolation structure is built and it’s thermal analyses is performed by utilizing ANSYS. The temperature distribution of detectors is obtained. The influence of polyimide thermal-isolation structure on temperature distribution is analyzed and the performance of the detector compared with that of micro-bridge structure.