The infrared focal plane array (IRFPA) device is a new generation of infrared detectors formed by introducing CO CD technology into the infrared band. It is a key component of modern infrared imaging systems and is widely used in infrared imaging, infrared search and tracking systems, and missile navigation. equipment, aerial surveillance, and infrared countermeasures. IRFPA A is built on materials, detector arrays, microelectronics, interconnects, packaging and many other technologies.