Article & Blog

Tang, Ying
How thick is 1 oz copper on a PCB?

PCB copper thickness guide: 1 oz standard balances cost/performance. Use 2 oz for high-current/high-heat design zones. Avoid thick copper for high-frequency/sensitive price projects.

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What is the Difference Between a Via and a Hole in PCB?
Tang, Ying
Blind, Buried, or Through Via?

Master PCB via selection: balance cost, density & signal needs. Proper sizing prevents overheating. Understand via-pad differences. Prevent failures with plating standards.

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Cold Solder Joint
Tang, Ying
Why Do Cold Solder Joints Occur?

Cold solder joints cause device failure. Learn to spot dull/cracked joints, fix with proper reflow and tools like flux, and test using thermal/multimeter methods.

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Tang, Ying
Why choose rigid flex PCB?

Rigid flex PCBs merge solid & bendable circuits to eliminate connectors, cut failure risks, boost signal integrity, and enable compact designs for medical/aerospace systems.

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FR4
Tang, Ying
What are 5 critical FR4 properties?

FR4 PCB material dominates with 5 key traits: insulation, strength, flame retardancy (UL-certified), moisture resistance, and cost-efficiency. Avoid catastrophic failures by mastering specs.

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