All Blog
Anti-CAF PCB Design & Manufacturing: How to Prevent Conductive Anodic Filament Failure
1. What is Conductive Anodic Filament (CAF) Failure? Conductive Anodic Filament (CAF) formation is an electrochemical process that leads to internal electrical shorts within a Printed Circuit Board (PCB). Under continuous DC bias voltage and high humidity, copper ions migrate along microscopic gaps between glass fibers and the epoxy resin substrate, moving from the anode…
From Gerber to Finished PCBA: The 7 Quality Inspection Steps Every Board Must Pass
In PCB and electronics manufacturing, relying solely on end-of-line inspection is a risky business. Hidden issues like cold solder joints or short circuits can bypass basic checks and trigger major product failures once deployed. For OEMs, that means costly replacements, warranty headaches, and damaged reputation Last month, a client came to us after losing $25,800…
HASL, ENIG, or OSP: Which PCB Surface Finish Best Fits Your Project?
Choosing the right PCB surface finish is one of the most critical decisions in the printed circuit board manufacturing process. The surface finish protects the exposed copper traces from oxidation and creates a solderable surface for component assembly. However, with multiple options available, each offering distinct advantages in terms of cost, shelf life, and assembly…
Why Are PCB Prices Different Between Suppliers? A Complete Guide for Buyers
When sourcing Printed Circuit Boards (PCBs), buyers often receive quotations that vary significantly from one supplier to another. In some cases, the price difference can exceed 30% or even 50% for seemingly identical PCB specifications. Especially currently, due to geopolitical issues and the evolving situation in the Middle East, the prices of raw materials and…
Why Low Dk and Low Roughness Materials Matter for RF & Antenna PCB Design
In modern RF and antenna applications—especially in satellite communication, 5G systems, and high-frequency devices—PCB material selection plays a critical role in overall performance. Among various parameters, dielectric constant (Dk) and copper surface roughness (Rz) stand out as two core indicators, which directly determine signal integrity and signal transmission efficiency. 1. The Importance of Low Dk…
