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3D-AOI-FQC

What Does FQC Mean in PCB Manufacturing? Final Quality Control Process and FQC Packaging Explained

Discover what FQC (Final Quality Control) means in PCB manufacturing and why it’s the last critical step before shipping. Learn the full FQC inspection process, testing methods, and packaging standards that ensure every PCB is defect-free, protected, and ready for reliable performance.
chip resistor and MELF resistor structure diagram

Chip Resistor Explained: Types, Sizes, and How to Read SMD Resistor Codes Like a Pro

Chip resistor demystified: SMD types, sizes, power ratings, terminal structure, and how to read SMD resistor codes—clear tips to improve solder reliability and PCB design.
January 21, 2026
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Df vs frequency chart for Low Dk Df PCB Materials (2, 5, 10 GHz)

Low Dk Df PCB Materials Explained: Boost Signal Integrity and Lead-Free Reliability

Learn how low Dk Df PCB materials boost signal integrity and lead-free reliability. Practical tips on resin content, frequency effects, and stackup selection.
January 21, 2026
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Macro of a purple PCB with ENIG pads and SMD parts

What Is a Purple PCB? Advantages, Solder Mask Guide, and Design Tips You Should Know

Purple PCB explained: what it is and how solder-mask color affects readability, inspection, and yield—plus ground-plane tips to know when to choose purple vs green.
January 20, 2026
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black pcb

What Is a Black PCB? Black Solder Mask vs. Black Core FR-4, Pros, Cons, and Design Considerations

Learn what a black PCB is: black solder mask vs black-core FR-4, key pros and cons, AOI challenges, silkscreen readability, and ground-plane design tips.
January 20, 2026
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Table 6.8 electrical properties of lead-free FR-4 vs DICY FR-4 at 2/5 GHz

Lead-Free FR-4 Explained: High-Frequency Dk/Df for lead free solder

Understand lead-free FR-4 electrical performance for lead free solder: Dk/Df at GHz, phenolic vs DICY systems, resin content impact, and practical design tips.
January 15, 2026
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PCB substrate dielectric constant versus frequency for epoxy, low-Dk blends, and APPE

PCB Substrate Selection Guide: How to Choose the Best Material for High-Speed and RF PCB Performance

Choose the right PCB substrate for high-speed and RF designs. Understand Dk, Df, resin, reinforcement, moisture and frequency effects, plus cost and build trade-offs.
January 15, 2026
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Eye diagram showing noise margin and jitter

How PCB Dielectric Materials Impact High-Speed Signal Integrity: Rise Time, Eye Diagrams, and Loss Explained

How PCB dielectric materials (Dk/Df) shape high-speed signal integrity: rise time, bandwidth, eye diagrams and loss — plus material choices for 10+Gbps designs.
January 13, 2026
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How Dielectric Constant and Dissipation Factor affect signal speed and loss in high-speed PCBs

How Dielectric Constant and Dissipation Factor Impact High Speed PCB Design and Signal Integrity

Learn how dielectric constant (Dk) and dissipation factor (Df) impact high speed PCB signal integrity, loss, and design performance.
January 13, 2026
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High-Density Interconnect

High-Density Interconnect (HDI) Explained: Microvia, Blind/Buried Vias & Materials Guide

High-Density Interconnect (HDI) guide: how microvias, blind/buried vias, laser drilling and advanced materials (RCC, aramid, ePTFE) boost PCB density and high-speed signal performance.
January 5, 2026
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PCB lamination heat/pressure profile with stack-up showing perfect alignment versus distortion and misregistration.

Top 7 Ways to Improve Dimensional Stability in PCB Laminates

Top 7 ways to improve dimensional stability in PCB laminates — practical material & process tips to boost registration accuracy, yield, and long-term reliability.
January 5, 2026
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Resin flow filling inner-layer copper in multilayer PCB; higher RC gives more fill

Prepreg PCB Selection Guide: Resin Content, Flow, and Thickness Explained

Prepreg PCB selection made simple: learn how resin content, flow and pressed thickness affect multilayer lamination—practical tips, charts, and stackups.
January 5, 2026
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rigid-flex-pcb

Rigid Flex PCB: Ultimate Guide to Stackups & DFM

Rigid Flex PCB guide: stackup examples, bend-radius & DFM rules, fabrication tips, cost & lead-time drivers, and how to choose the proper manufacturer.
December 24, 2025
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