Category Archives: PCB/FPC/PTF
Nov11
OSP vs. ENIG: Which PCB Surface Finish Provides Stronger BGA Solder Joints?
Figure: OSP vs. ENIG: Which PCB Surface Finish Provides Stronger BGA Solder Joints? This article uses experimental data to demonstrate that solder joints on OSP-finished PCBs can have higher strength than those on ENIG-finished PCBs. The results also confirm that … Continue reading
Sep30
What Is HASL Surface Finish? Advantages and Disadvantages
Figcaption: What Is HASL Surface Finish? Advantages and Disadvantages HASL stands for Hot Air Solder Leveling and is one of the most common PCB surface finishes. It is commonly referred to simply as HASL or a solder coating. During the … Continue reading
Sep16
Component Drop-Off on PCBs: How to Analyze, Troubleshoot, and Identify the Root Cause
Figcaption: Component Drop-Off on PCBs: How to Analyze, Troubleshoot, and Identify the Root Cause Components falling off a PCB can be a nightmare for many process and quality engineers. Workingbear has previously shared several cases involving components falling off PCBs. … Continue reading
Apr15
Common Ways to Connect FPC to PCB: What Actually Works
As electronics keep getting smaller and more advanced, the need to connect flexible printed circuits (FPCs) to rigid PCBs continues to grow. In this article, Workingbear will walk you through the most common methods used in the industry today—and share some … Continue reading
Apr08
How I Troubleshoot Hidden Open Circuits in FPCs
Flexible printed circuits (FPCs) are widely used because they can bend and fold. They’re perfect for compact products or for connecting signals between different PCBAs. But there’s a downside. As usage increases—especially in applications with repeated motion—FPCs can develop open circuits or … Continue reading
