Screening method for commercial plastic packaging device space application

A screening method, a technology for suppliers, applied in the field of screening for space applications of commercial plastic packaging devices, can solve the problems of poor radiation resistance, low reliability, failure, etc., and achieve the effects of saving costs, improving reliability, and saving time

Inactive Publication Date: 2006-11-08
NAT SPACE SCI CENT CAS
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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 r

Method used

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  • Screening method for commercial plastic packaging device space application
  • Screening method for commercial plastic packaging device space application

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Embodiment Construction

[0027] like figure 1 As shown, the screening method provided by the present invention for the space application of commercial plastic packaging devices includes the following steps:

[0028] Step 100, perform a screening test. Screening tests are first performed on a selected commercially available plastic-encapsulated device. like figure 2 As shown, to carry out the screening test, the supply channels of the selected commercial plastic packaging devices must be controlled first, regular and reputable manufacturers must be selected, and orders must be placed through regular channels; after purchase, batch inspection of products is required , it must be confirmed that it is the same batch of products; then the appearance inspection, CSAM test, electrical performance test, DPA (2-3 pieces / batch), humidity test, temperature cycle test, aging test, and reliability screening test with the whole machine are carried out in sequence , and finally provide a screening test report. ...

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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...

Claims

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Application Information

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IPC IPC(8): G01R31/00B07C5/00
Inventor 姜秀杰孙辉先陈小敏赵天麟王志华
Owner NAT SPACE SCI CENT CAS
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