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PCB/PCBA and related auxiliary materials test items generally include the following items:
2021-10-02
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Author:Frank

PCB/PCBA and related auxiliary materials test items generally include the following items:
In life, we can often see PCBA boards, so do you really understand it? The editor will take you into this article and take you to learn more about PCBA.
PCBA is the abbreviation of Printed Circuit Board Assembly in English, which means that the empty PCB board goes through SMT loading or the entire manufacturing process of DIP plug-in, referred to as PCBA. This is a common way of writing in China, and the standard way of writing in Europe and America is PCB' A, "'" is added, which is called the official idiom.
Typical environmental test of panels: temperature shock, rapid temperature change, condensation, mechanical shock, mechanical vibration, high temperature and high humidity, etc.;

 

Non-destructive testing analysis: X-ray fluoroscopy, high-resolution CT imaging, acoustic scanning microscope, infrared thermal imaging, etc.;

 

Electrical performance test: surface insulation resistance (SIR), volume resistivity, breakdown strength, dielectric strength, etc.;

 

Welding quality and mechanical performance analysis: chip cutter, tape tension, cutting board/reflow stress and strain analysis, dye penetration, etc.;

 

pcb board

Slicing and sample preparation of plate components: automatic cutting, grinding, polishing, micro-etching, etc.;

 

Solder joint defect detection: stereo microscope, metallographic microscope, large depth of field microscope, scanning electron microscope, etc.;

 

Assembly material composition detection: EDX, AES, secondary ion mass spectrometry SIMS, infrared spectroscopy, chromatography, mass spectrometry;

 

Cleanliness detection: ion chromatography, conductivity equivalent method, etc.

 

Thermomechanical performance analysis: differential scanning calorimetry, thermogravimetry, thermal stress test, hot oil test, etc.
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