Where can I do secondary screening for components? Professional organization answers

Where can I do secondary screening for components? Secondary screening of components is a qualification inspection conducted before the installation and use of components, with the aim of eliminating early failed products and improving the reliability of product batch use. After the acceptance of the components is qualified, the ordering unit or the user unit shall entrust the component testing station to conduct secondary screening according to relevant regulations, and it is required to remove early failed components. Secondary screening of components is a supplement to primary screening, and should comprehensively consider the usage conditions and application environment of components based on the items and stress of primary screening.

Secondary screening testing items and reference standards for electronic components

1. Appearance inspection: Refer to GB128A-1997 Method 2071, GB548B-2005 Method 2009.1, etc;

2. Electrical testing: room temperature testing, low temperature testing, high temperature testing, according to GB, GJB, component specifications, professional electrical testing equipment, including electrical parameter testing and functional testing;

3. Environmental stress detection: sweep frequency/random vibration, low-temperature/high-temperature storage, temperature cycling/temperature shock, constant acceleration or drop, particle collision noise detection (PIND);

4. Service life/aging/aging: Electrical testing before and after aging, reverse bias aging, power aging, etc., dedicated aging boxes and dedicated aging boards;

5. Sealing: Fine leak detection, coarse leak detection

6. Scanning acoustic microscopy examination: high reliability requirements

7. X-ray photography: Refer to GJB 360A-1996 Method 209, GJB 128A-1997 Method 2076, GJB 548B-2005 Method 2012.1, etc.

Secondary screening process for electronic components

1. Sample collection, identification, warehousing, and entry into the system;

2. Visual inspection;

3. Electrical parameter testing: Conduct electrical performance or electrical performance testing according to the product specifications;

4. Experienced screening: high temperature, reverse bias, power, etc;

5. Environmental stress testing: vibration, impact, centrifugal acceleration, temperature cycling;

6. Sealing inspection: coarse and fine leak detection, PIND;

7. Three temperature electrical parameter testing: Electrical performance or electrical performance testing according to the product specifications

6. Sorting, packaging, and outbound.

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