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2025-10-15 241

Gold Fingers in PCB: Design, Plating, and Manufacturing Best Practices

Gold Fingers in PCB: Design, Plating, and Manufacturing Best Practices In high-reliability electronic systems, gold fingers are not just a finishing touch—they are essential. Acting as the edge connectors between a PCB and an external device or motherboard, gold fingers play a pivotal role in ensuring durable, low-resistance, and high-cycle connections. But here’s the kicker… Not all gold fingers...

2025-10-14 251

PCB Gerber File Extensions and Their Meanings

Common PCB Gerber File Extensions and Their Meanings Gerber files typically consist of multiple layers, each represented by a different file extension. Extension Meaning Purpose .GTL Gerber Top Layer Top copper layer .GBL Gerber Bottom Layer Bottom copper layer .GTS Gerber Top Solder Mask Top solder mask openings .GBS Gerber Bottom Solder Mask Bottom solder mask openings .GTO Gerber Top Overlay To...

2025-10-13 274

The Impact of Rising Gold Prices on ENIG PCB Costs

The Impact of Rising Gold Prices on ENIG PCB Costs ENIG PCB (Electroless Nickel Immersion Gold PCB) is one of the most widely used finishes. The ENIG process deposits a thin layer of nickel on the copper surface, followed by a very thin layer of gold. This protects the copper from oxidation, enhances solderability, and extends the PCB’s lifespan. SQPCB is a professional ENIG PCB manufacturer, serv...

2025-10-13 235

Rigid PCB: Complete Guide to Rigid Circuit Boards

Rigid PCB: Complete Guide to Rigid Circuit Boards As the name suggests, Rigid PCBs are made from stiff materials that cannot be bent or folded. Typically manufactured from FR4 (fiberglass epoxy), CEM, or other high-performance laminates, they offer strong mechanical durability and stable electrical performance. In the electronics manufacturing industry, Rigid PCBs (Printed Circuit Boards) are the...

2025-10-12 203

Custom PCB: Complete Guide for Tailored Circuit Boards

Custom PCB: Complete Guide for Tailored Circuit Boards In the electronics manufacturing industry, Custom PCB (Printed Circuit Board) refers to circuit boards designed and produced according to specific customer requirements, functions, and applications. Unlike standardized boards, Custom PCBs emphasize flexibility and differentiation, enabling them to meet the unique needs of consumer electronics,...

2025-10-12 262

IC Substrate vs PCB: Key Differences and SQPCB Solutions

What is an IC Substrate? IC Substrate (Integrated Circuit Substrate) is primarily used in chip packaging and serves as the “bridge” between the semiconductor chip and the printed circuit board. Chips are extremely small, with pad diameters typically around 0.05 mm, whereas the minimum pad diameter on a standard PCB is usually 0.3 mm or larger. This huge size difference makes it impossible to achie...

2025-10-09 204

The Critical Link: How Rogers 5880 Thickness Options Directly Impact Impedance and Performance

The Critical Link: How Rogers 5880 Thickness Options Directly Impact Impedance and Performance Introduction In the realm of high-frequency circuit design, few materials have achieved the recognition that Rogers 5880 has earned. Engineers who demand consistency, precision, and electrical reliability often turn to this material because of its low dielectric constant, exceptional signal stability, an...

2025-09-16 226

The SMT Assembly Killer: Understanding and Combating PCB Twist Through Root Cause Analysis and Prevention

The SMT Assembly Killer: Understanding and Combating PCB Twist Through Root Cause Analysis and Prevention Introduction: Why PCB Twist Is Called the SMT Assembly Killer Surface Mount Technology (SMT) assembly thrives on precision. Modern pick-and-place machines are designed to operate at sub-millimeter tolerances, and automated soldering equipment expects perfectly flat substrates. Any deviation in...

2025-09-16 212

Safeguarding Yield and Reliability: Mastering the Causes, Measurement, and Prevention of PCB Bow

Safeguarding Yield and Reliability: Mastering the Causes, Measurement, and Prevention of PCB Bow Understanding PCB Bow: Definition and Industry Significance Detailed Introduction to PCB Bow PCB Bow refers to the unwanted curvature or warping of a printed circuit board. Instead of remaining perfectly flat, the board bows or twists, creating a non-planar surface. While minor deviations are inevitabl...

2025-09-15 187

A Threat to Yield: What are the Reasons Why PCB Board Pads Resist Proper Tinning?

A Threat to Yield: What are the Reasons Why PCB Board Pads Resist Proper Tinning? Introduction Printed circuit boards (PCBs) are the backbone of virtually all electronic devices. From smartphones and laptops to advanced automotive control units and aerospace systems, their reliability directly affects the performance and longevity of the entire product. One of the most crucial aspects of PCB assem...

2025-09-11 271

The Mechanical Interface: How PCB Slotting Enables Secure Component Integration

The Mechanical Interface: How PCB Slotting Enables Secure Component Integration Introduction In modern electronics, printed circuit boards (PCBs) serve not only as electrical interconnection platforms but also as structural frameworks that hold and support components. While many discussions focus on traces, vias, and layers, a less frequently highlighted feature — PCB Slotting — plays an equally v...

2025-09-09 249

Preventing Field Failure: How Vibration and Impact Testing Uncover Hidden PCB Weaknesses

Introduction 1. Understanding Vibration and Impact Testing in PCB Reliability Printed circuit boards (PCBs) are at the heart of nearly every modern electronic device, from consumer gadgets to aerospace control systems. While design engineers often focus on electrical performance, thermal management, or signal integrity, the mechanical resilience of a PCB is just as critical for long-term reliabili...

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