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9 tips for basic PCB board testing
ByGrace January 8, 2025January 7, 2025
When testing PCB boards, we should pay attention to some details in order to better ensure product quality. When testing PCB boards, we should pay attention to the following 9 tips. 1.It is strictly forbidden to use grounded test equipment to contact TV, audio, video and other equipment with electrified bottom plate to test PCB…
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Three wiring skills for PCB high-speed signal circuit design
ByGrace January 8, 2025January 18, 2025
PCB board design is a compulsory course for electronic engineers, and it is not as easy as it seems to design a perfect PCB board. A perfect PCB board not only needs to have reasonable component selection and setting, but also needs to have good signal conduction performance. This article will introduce and share the…
Read More Three wiring skills for PCB high-speed signal circuit design
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How to solve the EMI problem in multi-layer PCB design?
ByGrace January 8, 2025January 18, 2025
Power bus Reasonably placing capacitors of appropriate capacity near the power pins of IC can make the jump of IC output voltage faster. However, the problem does not end there. Due to the limited frequency response characteristics of capacitors, capacitors cannot generate the harmonic power required to drive IC output cleanly over the full frequency…
Read More How to solve the EMI problem in multi-layer PCB design?
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Several misunderstandings about differential signal layout on PCB
ByGrace January 8, 2025January 18, 2025
Misunderstanding 1 It is believed that differential signals do not need a ground plane as a return path, or that differential traces provide return paths for each other. The reason for this misunderstanding is that people are confused by surface phenomena or do not have a deep enough understanding of the mechanism of high-speed signal…
Read More Several misunderstandings about differential signal layout on PCB
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About the difference between various surface treatment processes of circuit boards
ByGrace January 4, 2025January 3, 2025
The main factor that determines the quality and positioning of a board is the surface treatment process. For example, OSP tin spraying, gold plating, and immersion gold. Relatively speaking, immersion gold is for high-end boards. Due to its good quality, immersion gold is also relatively costly. Therefore, many customers choose the most commonly used tin…
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Three special wiring techniques for PCB
ByGrace January 4, 2025January 3, 2025
Today, we will introduce three special routing techniques for PCB. The following will explain the routing of PCB LAYOUT from three aspects: right-angle routing, differential routing, and serpentine routing: 1.Right-angle routing (three aspects) The impact of right-angle routing on signals is mainly reflected in three aspects: first, the corner can be equivalent to the capacitive…
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Circuit board heat dissipation method
ByGrace January 2, 2025January 6, 2025
1.High heat generation devices plus heat sinks and heat conducting plates When there are a few devices on the PCB that generate a lot of heat (less than 3), a heat sink or heat pipe can be added to the heat generating device. When the temperature cannot be lowered, a heat sink with a fan…
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Let you know what is the DPC process of copper-clad ceramic substrate
ByGrace January 1, 2025December 30, 2024
Let you know what is the DPC process of copper-clad ceramic substrateDirect Plating Copper (DPC) process: It is a process method for preparing high-density electronic packaging materials. This process is the main method for metal film deposition in microelectronics manufacturing. It mainly uses surface deposition processes such as evaporation and magnetron sputtering to metallize the…
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Basic methods to minimize RF effects during PCB interconnect design
ByGrace December 31, 2024December 31, 2024
The interconnection of the circuit board system includes three types of interconnection: chip to circuit board, interconnection within the PCB board, and between the PCB and external devices. In RF design, the electromagnetic characteristics at the interconnection point are one of the main problems faced by engineering design. This article introduces various techniques for the…
Read More Basic methods to minimize RF effects during PCB interconnect design
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Five major categories of PCB substrates improve CCL technology level
ByGrace December 30, 2024December 27, 2024
The key tasks of my country’s copper clad laminate (CCL) industry in the future development strategy, specifically speaking, should be to work hard on five major categories of new PCB substrate materials, that is, through the development and technological breakthroughs of the five major categories of new substrate materials, to improve my country’s CCL cutting-edge…
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About the pros and cons of PCB copper coating
ByGrace December 28, 2024December 27, 2024
Copper coating is an important part of PCB design. Whether it is the domestic Qingyuefeng PCB design software or some foreign Protel and PowerPCB, they all provide intelligent copper coating function. So how to coat copper well? I will share some of my ideas with you, hoping to benefit my peers. The so-called copper coating…
Read More About the pros and cons of PCB copper coating
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SMT equipment management
ByGrace December 28, 2024December 27, 2024
(1) Talking about efficiency must start with management Among SNIT equipment, the SMT machine is recognized as the most complex equipment. With the rapid development of assembly technology, its complexity will continue to increase. At the same time, since the cost of the SMT machine accounts for a considerable proportion of the entire SMT processing,…
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What is hardware design?
ByGrace December 28, 2024December 26, 2024
My understanding: Hardware design is to complete hardware products (note: products, not development boards) that meet the requirements of PRS (Product Requirement Specification) and COGS (Cost of Goods Sale) within the specified time using the current mature chip solutions or technologies in the industry, including functions, performance, power supply, power consumption, heat dissipation, noise, signal…
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Analysis of signal integrity in high-speed digital PCB design
ByGrace December 28, 2024December 26, 2024
With the increase in the output switching speed of integrated circuits and the increase in the density of PCB boards, signal integrity has become one of the issues that must be concerned about in high-speed digital PCB design. Factors such as the parameters of components and PCB boards, the layout of components on PCB boards,…
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PCB component layout principles and practical tips
ByGrace December 24, 2024December 23, 2024
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. Layout is a crucial link. The quality of…
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