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The main product types of components include resistance, capacitance and inductance products, discrete devices (semiconductor diode, triode, MOS tube, IGBT, etc.) and integrated circuit IC, etc; Before the electronic components are installed on the whole machine or equipment, it is necessary to try to eliminate the components with problems as much as possible. Therefore, the components should be screened and tested.

The screening and testing laboratory of Yueke components can formulate a screening program according to the final use requirements of components. The main screening and testing items include: electrical performance testing and comparative analysis before and after aging, high temperature storage, dynamic and static aging, temperature cycle, high and low temperature impact, centrifugal acceleration, leak detection, noise particle collision, monitoring vibration and impact, component failure analysis, etc.

Applicable range of secondary screening of electronic components

A. The manufacturer did not conduct "primary screening", or the user did not have a specific understanding of the items and stresses of "primary screening";

B. The manufacturer has conducted "primary screening", but the "primary screening" items or stresses cannot meet the user's requirements for quality;

C. Special screening items that are not specified in the product scope and the manufacturer does not have screening conditions;

D. Components and parts that need to be verified if the manufacturer has conducted "primary screening" according to the contract or specification requirements or if the effectiveness of the manufacturer's "primary screening" is in doubt.

Product range covered by secondary screening

Electronic components: resistance, capacitance, inductance, relay, magnetic bead, transformer, crystal oscillator, crystal resonator, relay, electrical connector, etc;

Semiconductor discrete devices: diode, triode, MOS tube, IGBT, etc;

Semiconductor integrated circuit: CPU, memory, FPGA, AD/DA, digital circuit, analog circuit, hybrid circuit, DC/DC, etc;

Electronic module: power module, communication module, control module, etc. have relatively complete circuits with functions.

Secondary screening test items

-Visual inspection

-Electrical performance test: normal temperature test/high temperature test/low temperature test

-Environmental/mechanical stress detection: sweep frequency/random vibration, low temperature storage, high temperature storage, temperature cycle, temperature shock, constant acceleration or drop, sealing (coarse leak detection, fine leak detection), particle impact noise detection (PIND)

-Service life/aging/aging

-Ultrasonic testing of chip bonding

-X-ray radiography