Category Archives: Test/Inspection


Mar26
What is AOI? What Defects Can 2D AOI Detect in PCB Assembly?

post on March 26, 2024

AOI (Auto Optical Inspection) is an automated optical recognition system that has become widely used in the electronics industry for inspecting the quality of soldering, component placement accuracy and the presence of missing components on PCBA (Printed Circuit Board Assembly) … Continue reading →

Process, Quality, SMT, Test/Inspection     WorkingBear    Views (5,133)     comment (0)

Mar12
Why Do PCBs Have Those Small Circles? What purpose of Test Points on PCBs?

post on March 12, 2024

Have you ever noticed those tiny circles on PCBs and wondered why they’re there? They don’t seem to have any parts soldered onto them, and some don’t even have solder paste. Well, those small circles are called test points, and … Continue reading →

PCB/FPC/PTF, Process, Test/Inspection     WorkingBear    Views (2,333)     comment (0)

Mar05
What are ICT(In-Circuit Test) and MDA(Manufacturing Defects Analyzer) in Electronics Manufacturing? Any Benefits?

post on March 5, 2024

Do you know what ICT (In-Circuit Test) is? Please note that we are not talking about Information and Communication Technology (ICT) here. And what about MDA (Manufacturing Defects Analyzer)? If these tests are commonly implemented in PCB assembly manufacturing, what … Continue reading →

Test/Inspection     WorkingBear    Views (4,613)     comment (0)
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Apr13
Red Dye Penetration Test to check for BGA solder joint cracking

post on April 13, 2023

The Red Dye Penetration Test also known as Red Dye, is a technique used to inspect for surface-mount technology (SMT) defects such as voids or micro-cracks in the soldering of electronic components. It is a destructive test typically used on … Continue reading →

Process, Quality, SMT, Soldering, Test/Inspection     WorkingBear    Views (8,012)     comment (0)
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