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Author Archives: WorkingBear
Mar19
The Purpose of Nickel (Ni) Plating on Components or Circuit Boards in the Electronics Industry
Firstly, let’s clarify that Workingbear is not a metallurgy expert. The content of this article is based purely on personal experience and information gathered from the internet. If there are any errors, feel free to point them out for correction. … Continue reading
Mar12
Why Do PCBs Have Those Small Circles? What purpose of Test Points on PCBs?
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
Mar05
What are ICT(In-Circuit Test) and MDA(Manufacturing Defects Analyzer) in Electronics Manufacturing? Any Benefits?
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
Feb27
What is Graping Solder Defect in SMT Assembly? How to Fix it?
In the reflow soldering process of Surface Mount Technology (SMT) in electronic assembly, the occurrence of “Graping” solder defect refers to the situation where the solder paste does not completely melt and joint together during reflow. Instead, individual solder powders … Continue reading
Feb20
What is IMC (Intermetallic Compound)? How does IMC relate to PCB solder joint strength? Are there IPC standards for IMC thickness?
In the assembly and soldering process of printed circuit boards (PCBs), we often hear engineers or lab reports mentioning the term “IMC.” But what exactly is IMC? What role does IMC play in the PCB assembly (PCBA) soldering process? Does … Continue reading
