Author: Grace

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Wiring tips for amplifier PCB
ByGrace July 15, 2025July 15, 2025
Join the exchange group During the circuit design process, application engineers often overlook the layout of the printed circuit board (PCB). A common problem is that the circuit schematic is correct, but it does not work, or only operates at low performance. I will show you how to properly layout the circuit board of an…
Read More Wiring tips for amplifier PCB
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Impact of PCB structure on millimeter wave radar performance
ByGrace July 15, 2025July 15, 2025
Most common composite printed circuit boards (PCBs) use glass fiber as filler in their dielectric layers. However, due to the special weaving structure of glass fiber, the local dielectric constant (Dk) of the PCB board will change. Especially at millimeter wave (mmWave) frequencies, the glass weaving effect of thinner laminates will be more obvious, and…
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Study on the influence of ceramic PCB on the RF performance of wireless system
ByGrace July 15, 2025July 15, 2025
Introduction: With the rapid development of wireless communication technology, RF performance is crucial to the performance of wireless system. As a key component in wireless system, the material and structure of printed circuit board (PCB) are crucial to RF performance. In recent years, ceramic PCB has gradually attracted attention as an emerging high-end electronic material….
Read More Study on the influence of ceramic PCB on the RF performance of wireless system
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The Three Major Factors Affecting PCB Impedance Control
ByGrace July 15, 2025July 15, 2025
Abstract Impedance control is critical in modern printed circuit board (PCB) design, especially for high-speed digital and RF applications. Precise impedance matching ensures signal integrity, minimizes reflections, and reduces electromagnetic interference (EMI). This article explores the three primary factors influencing PCB impedance: trace geometry, dielectric material properties, and reference plane configuration. Understanding these factors helps…
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Impedance Control in PCB Manufacturing: A Detailed Analysis
ByGrace July 15, 2025July 15, 2025
1. Introduction Printed Circuit Boards (PCBs) are the backbone of modern electronics, enabling the interconnection of components in devices ranging from smartphones to aerospace systems. As signal frequencies increase and devices become more compact, maintaining signal integrity is critical. One of the most crucial aspects of signal integrity is impedance control, which ensures that signals…
Read More Impedance Control in PCB Manufacturing: A Detailed Analysis
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Application of Aluminum PCB in LED Lighting Industry
ByGrace July 15, 2025July 15, 2025
Printed circuit boards (PCB) are ubiquitous in our technological society. Everything from computers to medical devices to cars contain these PCBs in one form or another. However, not all PCBs are the same – many of them use different designs or materials to serve unique purposes. The base material is especially important for circuit boards,…
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Specific steps for PCB surface treatment
ByGrace July 15, 2025July 15, 2025
I.PCB surface treatment: After drilling, there will be residual copper foil burrs attached to the surface of the through hole on the PCB surface. At this time, the surface of the board will feel rough when touched by hand. These burrs will affect the quality of electroplating, so they must be removed. The steps for…
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The difference between hdi board and ordinary PCB
ByGrace July 15, 2025July 15, 2025
HDI board (High Density Interconnector), that is, high-density interconnection board, is a circuit board with a relatively high line distribution density using micro blind buried hole technology. HDI board has inner and outer layers of lines, and then uses drilling, in-hole metallization and other processes to connect the internal layers of each layer of lines….
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What is Chemical-Free PCB Manufacturing and Assembly
ByGrace July 15, 2025July 15, 2025
Commonly referred to as PCBA, Printed Circuit Board Assembly refers to the process of securely mounting electronic components onto a printed circuit board. It is basically a mechanical assembly process of soldering or assembling different electronic components onto one printed circuit board in a manner that enables encapsulation. A fully functional PCB is by no…
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Solving Blind Via Issues in PCB Design and Manufacturing
ByGrace July 15, 2025July 15, 2025
Abstract Blind vias are essential in modern high-density printed circuit board (PCB) designs, enabling connections between outer layers and inner layers without penetrating the entire board. However, blind vias present several challenges, including reliability concerns, manufacturing complexities, and signal integrity issues. This paper explores common problems associated with blind vias, analyzes their root causes, and…
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PCB Characteristics and PDN Performance
ByGrace July 15, 2025July 15, 2025
Basic design rules for power distribution networks (PDNs) tell us that the best performance comes from a consistent, frequency-independent (or flat) impedance profile. This is one reason why power supply stability is important, because a poorly stable source will result in impedance peaks that degrade the flat impedance profile and the performance of the powered…
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PCB Rigid Boards vs. FPC Flexible Circuits: A Comprehensive Comparison
ByGrace July 14, 2025July 14, 2025
Introduction Printed Circuit Boards (PCBs) are essential components in modern electronics, providing mechanical support and electrical connections for electronic components. Two major types of PCBs are Rigid PCBs (Hard Boards) and Flexible Printed Circuits (FPCs or Soft Boards). While both serve similar fundamental purposes, they differ significantly in material composition, design flexibility, manufacturing processes, and…
Read More PCB Rigid Boards vs. FPC Flexible Circuits: A Comprehensive Comparison
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Why does PCB need 20H principle?
ByGrace July 14, 2025July 14, 2025
1) In PCB design, small power supply should be copper-plated on the signal layer first, and then connected by routing that can carry current; 2) In PCB design, if 12V and 5V power supply is the input power supply of switching power supply, it should be processed on the signal layer (surface layer and inner…
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Detailed explanation of decoupling capacitor PCB design and layout
ByGrace July 14, 2025July 14, 2025
Today I will share with you: decoupling capacitor, decoupling capacitor PCB design and layout. 1.Decoupling capacitor Decoupling capacitor is used to filter out the interference of output signal. It is usually used in amplifier circuits that do not require AC power to eliminate self-excitation and make the amplifier work at a low temperature. In a…
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How to set jumpers in PCB design
ByGrace July 14, 2025July 14, 2025
In PCB design, sometimes we will encounter some single-sided boards, that is, the usual single-sided boards (LED-type light boards are more often designed). In this type of board, only single-sided wiring can be used, so jumpers have to be used. Of course, in complex boards, problems that can be solved with jumpers are basically not…
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