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Blind vs Buried Vias: A Comprehensive Guide for PCB Design

A printed circuit board (PCB) is made up of layers of copper foil circuits stacked on top of each other, and the connections between different circuit layers rely on vias. If the holes drilled by a drilling machine or laser are left as is, they will not conduct electricity, because the surface of the original drilled hole is only resin, which is not conductive. Therefore, a layer of conductive material (usually copper) must be plated on the surface of the drilled hole. In this way, current propagates ......

Sept 29, 2024

PCB Design All posts >

Essential FPC Design Guidelines for Engineers – Part 2: Tips for Reliable Flexible PCB Designs

In Part 1 of our Flexible PCB (FPC) design series, we covered the basics every engineer needs to know. Now, in Part 2, we dive into more design techniques that ensure your FPCs are not only functional but also reliable, durable, and optimized for performance. Whether you're designing for wearables, medical devices, or automotive applications, these guidelines will help you tackle complex challenges and create high-quality Flexible PCBs. Panelization Design 1. If an entire panel consists of steel sheet......

Essential FPC Design Guidelines for Engineers – Part 1: Mastering the Basics of Flexible PCB Design

Master FPC design with these essential guidelines! Learn best practices for outline, drilling, circuit, and solder mask design to create reliable and high-quality Flexible PCBs. Discover the essential Flexible PCB (FPC) design guidelines in Part 1 of our series. Learn the basics every engineer needs to create reliable, space-saving, and cost-effective FPCs Outline and Drilling Design 1. The minimum distance between through-holes and the board frame should be 0.5mm. If less than 0.5mm, change to a U-sh......

Custom PCB Layout Services in Modern Electronics

Custom PCB services are an important part of making electronics today because they make sure that exact design and performance needs are met. Custom PCBs are different from generic PCBs because they are made to fit the exact technical and functional needs of a wide range of businesses. These services cover everything from making prototypes to mass production, which lets companies make electronic products that are small, efficient, and very reliable. This article covers the importance of custom PCB ser......

Understanding the Importance of Custom PCBs in Modern Electronics

Custom printed circuit boards (PCBs) designed many different types of electronics. These customized boards provide the highest economy and performance, specifically made to satisfy project requirements. Custom PCBs are necessary to make electronic systems that work well and are reliable, whether they are for household electronics or industrial machinery. This article covers custom printed circuit boards (PCBs), their applications, important details, and the best ways to choose one. What is a Custom PC......

PCB Manufacturing All posts >

FPC PCB Manufacturing: How to Choose the Right FPC Parameters for Optimal Performance

What Are FPC Parameters? FPC flexible printed circuit boards parameters refer to the specific design and material choices that define the performance and functionality of a flexible printed circuit. These parameters include material selection, thickness, layer count, bend radius, and more. Properly selecting these parameters ensures that the FPC meets the requirements of its intended application. Key Factors to Consider When Choosing FPC Parameters Board Quantity/Board Size Board size refers to the di......

The Importance of Drill Drawings in PCB Production

In the realm of printed circuit board (PCB) manufacturing, drill drawings are often overlooked yet critically essential components of the design process. They act as a roadmap for accurate hole placement and dimensions. These drawings guide the drilling process, ensuring precise alignment and compatibility with components, mechanical fixtures, and electrical connections. From enhancing communication between designers and manufacturers to reducing production errors, drill drawings are integral to the f......

Via-in-Pad in PCB: Advantages and Challenges

In printed circuit board (PCB) design, via-in-pad has become a widely adopted technique, particularly in high-density interconnect (HDI) designs. It is particularly designed for BGAs with a package pitch of 0.8 mm or smaller. It involves placing a via directly within the surface mount pad of a component, offering several design and performance benefits. For example – placement of decoupling capacitors closer to IC pins, improving bypassing and noise performance. Proper via-in-pad implementation ensure......

Comparing PCB Etching Techniques

Etching is the process of removing copper elements from the board to pave a conductive path for electricity flow. PCB etching is one of the most important elements of the PCB manufacturing process. Manufacturers must prepare a design, transfer it, apply the etching solution, clean it, and perform a finishing process to etch PCB for an electrical device.Although it sounds straightforward, the PCB etching process is quite complex and precision is vital. Without the proper knowledge of what is PCB etchin......

PCB Knowledge All posts >

How to Easily Distinguish Between Adhesive-Based and Adhesive-Free FPC Substrates

FPC substrate is crucial to the performance of flexible circuit boards! It directly affects the reliability and lifespan of your product. Currently, the most commonly used FPC substrate (also known as FCCL) on the market is Polyimide (PI), which has excellent heat resistance, chemical stability, and mechanical properties, allowing it to maintain stable insulation performance in high-temperature environments. However, please note that PI substrates are categorized into adhesive-based and adhesive-free ......

How to Choose the Right FPC Reinforcement

FPC (Flexible Printed Circuit) reinforcement are essential for improving the mechanical strength and stability of FPCs, particularly in connector areas or other regions that require additional support. Selecting the right reinforcement material is critical to ensuring the performance, durability, and reliability of FPCs in various applications. Why Are FPC Reinforcement Materials Important? FPCs are widely used in industries such as electronics, automotive, medical devices, and aerospace due to their ......

PCB Controllers in Electronic Circuit Design

PCB controllers are the vital part of modern electronics and they are found on printed circuit boards (PCBs). These controllers are like the brains of electronic systems. They handle data, keep voltages stable, and make sure that all the parts on the circuit board can talk to each other easily. It is impossible to overstate how important they are, especially since computer designs are getting more complicated all the time. There are different kinds of PCB controllers and different uses for them. This ......

The Impact of Vias on High-Speed PCB Design

High speed signals require impedance matching. Basically this means that the signal path must have a continuous impedance throughout which is matched with the receiver impedance. This is to prevent signal reflections that can corrupt the signal. In very basic language, the PCB track characteristic impedance depends on the track width, track copper height, distance from the reference GND plane and dielectric constant. This is a very clear statement in high speed designs, but there are several issues wi......

PCB Assembly All posts >

PCB Soldering Basic Techniques and Overview

Soldering means joining metal components with a melted metal called solder, which has a low melting point compared to other metals. Soldering is crucial in the electronics industry and is the primary method of joining electrical components. There are different types of soldering materials based on quality and their melting points. The most common combination is a tin or lead metal alloy mixed with silver or brass. The soldering iron melts the metal so it can be used like glue to connect two pieces. On......

The Risks of Using Tin-Spray Process for BGA Packages and Solutions

As integrated circuit (IC) technology evolves, coupled with advancements in equipment and high-precision PCB manufacturing, consumer electronics are trending toward being lighter, thinner, and more powerful. Traditional through-hole or standard surface-mount components (SMT) are no longer sufficient to meet these demands. With the increasing integration level of silicon chips, the packaging method has transitioned to Ball Grid Array (BGA) technology. The Rise of BGA Packaging BGA package offers severa......

The Comprehensive Guide to PCB Assembly Process at JLCPCB: Efficient and Reliable PCB Manufacturing

One of the most important factors to create a working circuit board is the assembly technique and process, such a step has to be controlled and carefully executed to ensure the wellness of the final produced device. JLCPCB provides PCB Assembly by taking charge of the full steps of soldering each component to its placement on the board based on their capabilities which shortens the path for engineers and companies by saving more time. The PCB Assembly process comes directly after the PCB manufacturing......

The Essential Guide to SMT Stencils in PCB Assembly

Introduction In the dynamic world of electronics manufacturing, Surface Mount Technology (SMT) plays a crucial role in achieving efficiency and precision in printed circuit board (PCB) assembly. Central to the SMT process is the SMT stencil, an indispensable tool for the accurate application of solder paste. This ensures solid electrical connections between components and PCBs. This guide delves into the specifics of SMT stencils, examining their types, materials, manufacturing methods, advantages, ch......