Blog
Everything You Need to Know About PCB Backdrilling
PCB backdrilling is a controlled-depth drilling process used to remove via stubs in multilayer PCBs, helping improve signal integrity in high-speed designs.
SMD Resistor Size Chart
Use this SMD resistor size chart to quickly compare 01005–2512 packages, imperial and metric codes, dimensions, and typical power ratings.
Arduino Uno-Based Traffic Light Project
This Arduino Uno-based traffic light project recreates a real signal cycle, showing how red, green, and yellow LEDs can be controlled with simple timing logic.
Practical High-Speed PCB Design Guide for Real Manufacturing
High-speed PCB design is often associated with advanced materials, but material choice is only part of the story. This article explains why practical layout design matters just as much for reliable manufacturing.
Wave Soldering Process for Through-Hole PCB Assembly
Even as SMT dominates modern PCB assembly, wave soldering remains essential for strong, repeatable through-hole joints. PCBCool explains why this process still matters.
How PCBCool Secures PCB Material Stock for Stable Production
When PCB material supply becomes uncertain, stable inventory matters. PCBCool prepared Kingboard materials in advance to help keep standard PCB projects moving.
How Gold Price Volatility Affects PCB Costs
Gold is used in selected PCB finishes and contacts. This article explains when gold price volatility affects PCB and PCBA costs, and how OEMs can respond.
The Complete Guide to PCB Via Filling
PCB via filling fills plated vias to improve reliability, routing density, heat transfer, and via-in-pad support. PCBCool explains when and how to use it in PCB design.
ESP32 WiFiManager Tutorial for WiFi Setup
ESP32 WiFiManager is a library that helps ESP32 devices configure WiFi without hardcoded credentials. This tutorial explains how to set it up step by step.
BGA Rework Tutorial to Support Your Failure Repair Process
BGA rework is a high-risk process that requires precise rework stations and inspection equipment. In this article, PCBCool explains the full BGA rework process step by step.
How the Reflow Soldering Process Works in SMT Assembly
The reflow soldering process turns solder paste into reliable PCB joints in SMT assembly. This guide explains how profile control, inspection, and process stability affect solder quality.
LattePanda Mu Carrier Board Design Guide (Intel N305)
This guide explains how to design a custom carrier board around the LattePanda Mu, turning an x86 SOM into a reliable hardware platform for embedded, industrial, and edge computing applications.
PCBCool 2026 Dragon Boat Festival Holiday Notice and Appreciation
During the 2026 Dragon Boat Festival holiday, PCBCool’s China factories will pause production while project teams remain available to support customers.
Top 7 U.S. PCB Manufacturers to Watch in 2026
Discover how the U.S. PCB market supports high-end electronics, and see PCBCool’s 2026 list of 7 recommended U.S. PCB manufacturers.
6 Strategies for the 2026 PCB Material Shortage
AI server growth is tightening supply for high-end PCB materials, including glass fabric, resin, and CCL. PCBCool shares 6 practical strategies to help your teams reduce material risk and lead-time pressure.
GSR-Enabled Multi-Biomarker Athlete Monitoring Wristband Case Study
See how PS Electronics helped a European sports-tech startup turn a GSR-enabled athlete monitoring wristband into a manufacturable product.
How a PCB Is Manufactured Step by Step
PCBCool explains the standard bare PCB manufacturing process step by step through text, images, and video, from production files to finished circuit boards.
LPG Gas Monitor Mechanical-Electrical Prototype Case Study
PS Electronics defined a mechanical-electrical prototype path for a smart LPG gas-level monitor, addressing load-cell accuracy, enclosure structure, battery layout, RF clearance, and production readiness.
Everything You Need to Know About Zener Diodes
A Zener diode is a specially doped p-n junction diode designed to operate in reverse breakdown and maintain a stable voltage.
Complete Guide to Tunnel Diodes
A tunnel diode is a heavily doped p-n junction diode that uses quantum tunneling to produce negative resistance. This guide explains its working principle, characteristics, and applications.
