Screening method for commercial plastic packaging device space application

Abstract

This invention relates to a method used in selecting commercial plastic sealed devices in space including selection and test, reliable computation and anti-radiation test, anti-radiation reinforcement and evaluation based on the above mentioned test result, reliable computation and anti-radiation reinforcement result, which carries out 100% un-destrctive selection tests to eliminate forepart invalid products with potential shortcomings and increases the reliability of batch products.

Description

technical field [0001] The invention relates to a screening method for the space application of commercial plastic-encapsulated devices, in particular to a screening method for commercial plastic-encapsulated devices applied in the field of aerospace. Background technique [0002] According to the international general classification method, the grades of electronic components can generally be divided into aerospace grade, 883B grade, military grade, industrial grade, and commercial grade. Commonly referred to as commercial devices Commercial-Off-The-Shelf (COTS) includes industrial-grade and commercial-grade devices. In space missions, most devices use aerospace-grade / 883B-class products, but in recent years, high-performance commercial devices, especially commercial plastic-encapsulated devices Plastic Encapsulated Microcircuits (PEMs) are gradually and widely used in space missions to meet the system's high-performance requirements . [0003] In recent years, the perfor...

AI Technical Summary

Problems solved by technology

The radiation environment mainly has the total dose effect and the single event effect. The radiation resistance of commercial plastic packaged devices is poor, which will lead to different degrees of damage and failure of the device in the space environment. This is an unavoidable problem when using commercial plastic packaged devices.

In addition, devices in space applications cannot be repaired and replaced, and have high requirements on device reliability, while commercial plastic-encapsulated devices have low reliability and their reliability data are not provided by manufacturers; commercial plastic-encapsulated devices have no traceability; users cannot know Changes in the process of commercial plastic-encapsulated devices; commercial plastic-encapsulated devices are susceptible to moisture

However, there is not yet a mature specification or guideline for commercial plastic-encapsulated devices to follow, and the reliability test methods applied to military products cannot be applied to commercial plastic-encapsulated devices, so further research is still needed

Images