HDI PCB Orders Explained: Definition, Differences from Standard PCBs, and Manufacturing Process

As electronics become smaller and more integrated, HDI (High Density Interconnect) PCBs have become the standard for high-end hardware. This guide explains how HDI orders are defined (1-N, 2-N, any-layer), how HDI PCBs differ from standard PCBs in routing density, via technology, and layer count, and walks through the HDI manufacturing process.

2026.10.26

PCB Stack-Up Design Principles: What Is a PCB Stack-Up?

A PCB stack-up determines signal integrity, power integrity, EMI/EMC performance, and manufacturing cost. When designing boards with four or more layers, stack-up decisions directly impact board performance and price. This guide covers stack-up fundamentals, key design principles, and how stack-up choices affect circuit performance.

2026.10.26

Differential Pair Routing in PCB Design: Principles, Benefits, and Manufacturing Control

Differential pair routing is the standard for high-speed signals like PCIe, USB, HDMI, and Ethernet. This guide covers the two core principles—length matching and width matching—along with six key benefits including strong noise immunity, EMI suppression, and lower power consumption. It also explains how manufacturing controls differential impedance in production.

2026.10.23

How to Inspect PCB Laser Solder Joints: 4 Optical Detection Methods

As electronics move toward miniaturization, laser solder joints are becoming smaller and harder to inspect. This guide covers four optical detection methods used to evaluate solder joint quality—laser triangulation, reflection distribution, multi-angle imaging, and multi-focus detection—and explains how process control from SPI to 3D AOI prevents defects at the source.

2026.10.22

Why AOI Inspection Is the Gatekeeper of SMT Solder Quality

As PCBs shrink and component density increases, manual visual inspection is no longer enough. AOI (Automated Optical Inspection) uses high-resolution cameras and image processing to catch missing components, misalignments, and solder defects right on the SMT line. This guide covers how AOI works, what it can detect, and how manufacturing process control prevents the most common SMT defects.

2026.10.21

Power PCB Design Essentials: From Thermal Management to Manufacturability

Power PCBs face challenges that standard signal boards don't: high currents, high voltages, and extreme heat. This guide covers the core essentials of power PCB design—thermal management, power and ground routing, component layout, via design, protection circuits, and EMC—while highlighting the manufacturing pitfalls that can cause production failures.

2026.10.21

PCB Plated Through Holes (PTH) vs. Vias: Concepts and Manufacturability

In PCB design, holes are not all created equal. Plated through holes (PTH), vias, and non-plated through holes (NPTH) serve completely different purposes. Mislabeling them in design files often leads to manufacturing delays, extra costs, or assembly failures. This guide explains the differences and the manufacturing pitfalls to avoid.

2026.10.19

What Is a Backplane PCB? Key Functions, Advantages, and Manufacturing Priorities

A backplane PCB sits at the back or bottom of electronic equipment, supporting and connecting multiple subsystems. Unlike standard PCBs, backplanes feature higher layer counts, more connectors, and demanding requirements for high-speed signal transmission, power distribution, thermal management, and EMI/EMC. This guide covers their core functions, key advantages, and manufacturing priorities.

2026.10.19

What Is a Backplane PCB? Key Functions, Advantages, and Manufacturing Considerations

A backplane PCB sits at the back or bottom of electronic equipment, supporting and connecting multiple components and subsystems. Unlike standard PCBs, backplanes handle higher layer counts, more connectors, and demanding requirements for signal integrity, power distribution, thermal management, and EMI/EMC. This guide covers their functions, advantages, and manufacturing priorities.

2026.10.16

LCD and Touchscreen PCB Design: From Working Principles to Manufacturability

LCD and touchscreen technology is at the core of devices from smartphones to medical equipment. PCB design directly affects their performance and reliability. This guide covers signal integrity, power management, interface design (MIPI DSI, LVDS), grounding and shielding, stack-up, layout, thermal management, and serviceability.

2026.10.16

What Is HDI? PCB Design Basics and HDI Manufacturing Process

High-density interconnect (HDI) PCBs pack more components into smaller spaces using blind vias, buried vias, microvias, via-in-pad, and fine traces. This guide covers HDI design fundamentals, material selection, stack-up planning, via types, sequential lamination, metallization, and manufacturing considerations.

2026.10.15

15 Common PCB Circuit Effects Every Engineer Should Know

Some PCB problems aren't caused by design errors—they're caused by physical effects. This guide covers 15 common PCB circuit effects, from bridging and ripple to crosstalk, reflection, thermal expansion, and via effects—explaining the symptoms, root causes, and mitigation measures for each.

2026.10.15