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Importance of Stencils to PCB Assembly
ByGrace July 19, 2025July 16, 2025
The surface mount assembly process uses a stencil as a gateway to accurate, repeatable solder paste deposits. A stencil is a sheet or sheet of brass or stainless steel with a circuit pattern cut into it that matches the location pattern of the surface mount devices (SMDs) on the printed circuit board (PCB) where the…
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Parameters Involved in PCB Layout
ByGrace July 19, 2025July 16, 2025
When you are not used to a new set of PCB design tools, the large number of parameters that need to be set can be overwhelming. But you have to get familiar with it because, through its proper handling of controls, the layout tool can be made to fit your design methods and style. Here…
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Common PCB Failure Modes and How to Avoid Them
ByGrace July 19, 2025July 16, 2025
Water is bad news for an operating PCBA. Even small amounts of moisture can cause your board to fail, and avoiding moisture requires the best possible protection methods to be used. Even with this security, your board may still be vulnerable, as several PCB failure modes exist. To build a comprehensive defense, we first need…
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Methods for high-power PCB heat dissipation
ByGrace July 19, 2025July 15, 2025
The entire power electronics industry, including RF applications and systems involving high-speed signals, is moving towards solutions that provide increasingly complex functions in increasingly smaller spaces. Designers face increasingly demanding challenges in meeting system size, weight and power requirements, including effective thermal management, which starts with the design of the PCB. Highly integrated active power…
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What are the skills for selecting components in PCB design?
ByGrace July 19, 2025July 15, 2025
1.Consider the choice of component package Throughout the schematic drawing stage, you should consider the component package and land pattern decisions that need to be made in the layout stage. Here are some suggestions for considering when selecting components based on component packages. Remember that the package includes the electrical pad connections and mechanical dimensions…
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How to Get Gold Off Circuit PCB: A Comprehensive Guide
ByGrace July 19, 2025July 19, 2025
Introduction Printed Circuit Boards (PCBs) are essential components in nearly all modern electronic devices, from smartphones to industrial equipment. Many PCBs contain small amounts of precious metals, including gold, which is used for its excellent conductivity and corrosion resistance. While the quantity of gold in a single PCB may be small, recovering gold from multiple…
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How to detect PCB board faults quickly
ByGrace July 18, 2025July 18, 2025
Making PCB boards is not as simple as following the process to make the board, drilling a hole and putting in components. The production of PCB is not difficult, but the difficulty lies in the troubleshooting after the production is completed. Whether it is a personal enthusiast or an industry engineer, it is quite a…
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Common PCB layout problems and confusions
ByGrace July 18, 2025July 18, 2025
In electronic design, after the project schematic design is completed and compiled, the PCB design needs to be carried out. After the board size, stacking design, and overall partition conception are determined, the first step of the design is to place the components in their appropriate positions. The layout is a crucial link. The quality…
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The Relationship Between Layout and PCB in Electronic Design
ByGrace July 18, 2025July 18, 2025
Introduction In the realm of electronic design, the terms “layout” and “PCB” (Printed Circuit Board) are intimately connected, representing two fundamental aspects of bringing electronic circuits from concept to reality. While these terms are sometimes used interchangeably by those outside the field, they actually represent distinct but deeply interrelated stages in the electronic design process….
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How to associate schematics with PCBs in AD
ByGrace July 18, 2025July 18, 2025
In Altium Designer (AD for short), associating schematics with PCBs is an important design step that ensures a smooth transition from logical design to physical implementation. The following are the steps to associate schematics with PCBs: 1.Assign component packages Check and assign packages: In the schematic, each component needs to have a corresponding PCB package…
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Contents of PCB manufacturability design review
ByGrace July 18, 2025July 18, 2025
After the PCB design is completed, we need to perform functional checks on all projects. Just like when we finish the test paper, we need to do a simple analysis and inspection, and look at all the questions again to ensure that there will be no major mistakes due to negligence. Similarly, the PCB design…
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Three major factors affecting PCB impedance
ByGrace July 18, 2025July 18, 2025
The three major factors affecting PCB impedance mainly include: dielectric thickness, wire width and dielectric constant. The following is a detailed explanation: 1.Dielectric thickness (H): The dielectric thickness is proportional to the impedance, that is, the thicker the dielectric, the greater the impedance; the thinner the dielectric, the smaller the impedance. In the actual production…
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PCB module division and layout of key components
ByGrace July 18, 2025July 18, 2025
When talking about PCB EMC design, we cannot ignore the PCB module division and layout of key components. On the one hand, the relative position and direction of certain frequency generating devices, drivers, power modules, filter devices, etc. on the PCB will have a huge impact on the emission and reception of electromagnetic fields. On…
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How to isolate the digital ground and analog ground of PCB
ByGrace July 18, 2025July 18, 2025
When designing a printed circuit board (PCB), the isolation of digital ground and analog ground is a very important link, because improper grounding will cause signal interference and increase noise, thus affecting the performance of the entire system. 1.Understanding digital ground and analog ground Digital ground: usually refers to the reference ground of the digital…
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PCB Selective Soldering Process Skills
ByGrace July 18, 2025July 18, 2025
This article mainly introduces the knowledge of PCB selective soldering technology and process, including the process characteristics of PCB selective soldering technology, the process of selective soldering technology, two different processes of drag soldering and dip soldering, and the shortcomings of single-nozzle solder wave drag soldering process. I. Process characteristics of PCB selective soldering technology…
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