Monthly Archives: May 2023


May30
The Hidden Dangers of Using Overdue PCBs: Can Baking Salvage Them?

post on May 30, 2023

All materials actually have its shelf-life, some shorter and some longer than others. So what happens when expired materials are used? Think about what will happens when you eat expired food. What about using expired Printed Circuit Boards (PCBs)?

PCB/FPC/PTF, Quality, Reliability, SMT, Soldering     WorkingBear    Views (4,539)     comment (0)

May22
What is the Purpose of Surface Finishes for PCB? A Summary of the Pros and Cons of Common PCB Finishes

post on May 22, 2023

This is just a summary article about PCB surface finishes. Workingbear has only worked on the electronic system assembly factory and has not been involved in the production process of bare PCBs. Therefore, the following insights are based on personal … Continue reading →

PCB/FPC/PTF     WorkingBear    Views (3,089)     comment (0)
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May18
Clarifying the Concept of Electronic Component Soldering Strength

post on May 18, 2023

While organizing an article on the structural analysis of Micro-USB connectors, Workingbear came across an interesting soldering concept that he would like to discuss with everyone. During the product development and NPI verification phase, RD often comes to me, I … Continue reading →

Connector, Quality, Reliability, SMT, Soldering     WorkingBear    Views (2,885)     comment (0)
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May16
What is the difference between PCB and PCBA? PCB is like land with roads, but it doesn’t have buildings yet

post on May 16, 2023

What is the difference between PCB and PCBA? This is actually something that should be easily understood, but since someone asked, Workingbear will try explain it briefly here. If any readers notice any errors, please feel free to correct me. … Continue reading →

Manufacture, PCB/FPC/PTF, Soldering     WorkingBear    Views (4,116)     comment (0)

May10
How to Bake PCB? Baking Conditions and Methods, Why Expired PCBs Need to Be Baked Before SMT or Reflow Soldering?

post on May 10, 2023

For many engineers, they may not understand why PCBs must be baked before going through the SMT reflow oven if they have expired their storage shelf life. Or perhaps, they believe that PCBs should be baked regardless of whether or … Continue reading →

PCB/FPC/PTF, Process, Quality     WorkingBear    Views (10,781)     comment (0)
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