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PCB Materials

Do PCBs Expire? PCB Shelf Life, Storage Guidelines, and Handling Expired Boards

Printed circuit boards (PCBs) do expire. Like food has a best-before date, PCBs have a defined shelf life that directly affects solderability, reliability, and assembly performance. Under ideal vacuum-sealed and humidity-controlled conditio...

Jun 10, 2026 Read More

PCB Materials

What Do 7628, 2116, and 1080 Mean in PCB Manufacturing?

If you've ever reviewed a PCB stack-up, prepreg specification, or laminate datasheet, you've probably come across numbers such as 7628, 2116, and 1080. At first glance, these codes look like random product identifiers; however, they are act...

Jun 8, 2026 Read More

PCB Materials

PCBMASTER's Stable Shengyi Material Supply Ensures Consistent PCB Quality

In the PCB manufacturing industry, material consistency is one of the most critical factors affecting product quality, reliability, and long-term performance. Among the various raw materials used in PCB production, laminate materials play a...

Jun 6, 2026 Read More

PCB Materials

M4 to M9 PCB Materials Explained: High-Speed Evolution for 112G and 224G AI Servers

AI servers are pushing signal transmission into an entirely new regime, where 112G and even 224G interconnects are no longer experimental targets but engineering realities. At this level, traditional PCB material selection is no longer suff...

Jun 3, 2026 Read More

PCB Materials

PCB Drilling Guidelines for Different FR-4 Materials: How to Optimize Hole Quality and Reliability

FR-4 is the most widely used material in PCB manufacturing because it offers a strong balance of electrical performance, mechanical stability, and cost efficiency. However, although FR-4 is often discussed as a single material category, it ...

May 25, 2026 Read More

PCB Materials

IPC-4103 High-Speed High-Frequency PCB Materials: Complete Guide for Designers

High-speed digital circuits and high-frequency analog designs demand more than conventional PCB materials can offer. As signal speeds reach the GHz range and RF/microwave applications become commonplace, standard FR-4 boards struggle to mai...

May 15, 2026 Read More

PCB Materials

Understanding PCB Coefficient of Thermal Expansion (CTE) and Its Effects

Every electronic device relies on the stability of its printed circuit board (PCB). When a PCB heats up or cools down, it slightly changes size—a property called thermal expansion. The measure of this change is the coefficient of thermal e...

May 14, 2026 Read More

PCB Materials

Complete Guide to PCB Materials: Types, Properties, and Sizing

Choosing the right PCB material is crucial to ensuring the reliability and performance of your electronic products. Whether you're designing a consumer gadget, a high-speed communication device, or an energy-efficient lighting solution, the...

Apr 20, 2026 Read More

PCB Materials

Prepreg (PP) in PCB Production: Composition, Properties, and Common Defects

Prepreg (PP) is a unique material that bridges the gap between raw glass fiber and the final, fully functional PCB. It’s the material that holds the layers of a multi-layer circuit board together while providing critical insulation and str...

Apr 17, 2026 Read More

PCB Materials

Top 10 Common Circuit Board Components and Their Functions in Electronics

Circuit boards are crucial to nearly every electronic device, from smartphones and computers to home appliances and vehicles. These flat, often small, boards contain a network of electrical pathways that connect various components, enabling...

Apr 15, 2026 Read More

PCB Materials

How to Control PCB Material Direction (Warp vs. Weft) for Better Dimensional Stability and Quality

Effective control of PCB material direction—warp and weft—is key to maintaining dimensional stability and product quality. Even slight differences in how materials react to heat, moisture, and stress can cause warping or alignment issues,...

Apr 13, 2026 Read More

PCB Materials

Essential Guide to PCB Solder Mask Ink: Functions, Types, and Color Selection

When you look at a PCB, the green (or sometimes black or white) layer covering the surface isn’t just for appearance. It’s a vital component known as solder mask ink. This protective coating plays a key role in the overall performance and...

Apr 7, 2026 Read More