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How to choose PCB material for microwave amplifiers millimeter wave amplifiers
ByGrace January 25, 2025January 21, 2025
5G represents the latest and greatest in wireless technology,and both design and manufacturing will be challenging,and of course circuit board materials will be challenging,because it will operate at many different frequencies ,such as 6GHz and below,as well as millimeter wave frequencies(typically 30 GHz and above ). it will also combine network access from ground base…
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PCB anti-interference design principles you don’t know
ByGrace January 24, 2025January 21, 2025
Anti-interference is a very important part of modern PCB circuit design, which directly reflects the performance and reliability of the entire system. At present, the anti-interference technologies used in the system mainly include hardware anti-interference technology and software anti-interference technology. 1) Design of hardware anti-interference technology. The inverter circuit of the flywheel energy storage system…
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Detailed explanation of there special pcb wiring and inspection methods
ByGrace January 24, 2025January 21, 2025
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 load on the transmission line, slowing down the rise time; second, the impedance discontinuity will cause signal reflection; third, the EMI generated by the right-angle tip, in the RF…
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How to choose PCB materials for microwave amplifiers/millimeter wave amplifiers
ByGrace January 23, 2025January 21, 2025
5G represents the latest and greatest in wireless technology, and both design and manufacturing will be challenging, and of course circuit board materials will be challenging, because it will operate at many different frequencies, such as 6 GHz and below, as well as millimeter wave frequencies (typically 30 GHz and above). It will also combine…
Read More How to choose PCB materials for microwave amplifiers/millimeter wave amplifiers
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PCB copper coating knowledge must know
ByGrace January 22, 2025January 20, 2025
Copper coating is a common operation, which is to cover the area without wiring on the circuit board with copper film. This can enhance the anti-interference performance of the circuit board. The so-called copper coating is to use the idle space on the PCB as the reference surface and then fill it with solid copper….
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Six good habits to make your PCB design better
ByGrace January 22, 2025January 20, 2025
PCB layout engineers face thousands of lines on the board every day, various packages, and repeat the work of pulling wires. Perhaps many people will think that this is a very boring job. Although they seem to be software operators, designers actually have to make trade-offs between various design rules in the process, taking into…
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The shape and size design standards of pads in PCB design
ByGrace January 22, 2025January 20, 2025
I. Types of pads In general, pads can be divided into 7 categories, which are distinguished by shape as follows 2.Requirements for pads in PCB manufacturing process
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Basic principles and requirements for printed circuit board design
ByGrace January 22, 2025January 20, 2025
1.The design of a printed circuit board starts with determining the size of the board. The size of the printed circuit board is limited by the size of the chassis shell, so it is best to fit it into the shell. Secondly, the connection method between the printed circuit board and external components (mainly potentiometers,…
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Implementation of conductive hole plugging process
ByGrace January 21, 2025January 20, 2025
For surface mount boards, especially BGA and IC mounting, the via plugging requirements must be flat, with a convex and concave of plus or minus 1mil, and the via edge must not be red and tinned; the via hole must not have tin beads. In order to meet customer requirements, the via plugging process can…
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PCB stacking design
ByGrace January 21, 2025January 20, 2025
In general, stacking design mainly follows two rules: 1.Each routing layer must have an adjacent reference layer (power or ground layer); 2. The adjacent main power layer and ground layer must maintain a minimum spacing to provide a larger coupling capacitor; The following lists the stacking from two-layer boards to ten-layer boards: 3.Stacking of single-sided…
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Popular Science Cracking MCU Technology, It’s That Simple
ByGrace January 21, 2025January 20, 2025
The security level of MCU is gradually improving, and some companies have even launched secure master controls. This is a good phenomenon, indicating that people are paying more and more attention to information security and program security in the embedded field. However, for many special industries, such as consumer electronics, low-cost communication modules, power control…
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Why is “serial” so popular?
ByGrace January 21, 2025January 20, 2025
In the past two years, the word that everyone has heard the most is probably serial transmission. From the perspective of technological development, serial transmission has the momentum to completely replace parallel transmission. USB replaces IEEE 1284, SATA replaces PATA, and PCI Express replaces PCI. In principle, parallel transmission is actually better than serial transmission….
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Copper clad laminate
ByGrace January 21, 2025January 20, 2025
In addition to supporting various components in PCB boards, copper clad laminates can also achieve electrical connections or electrical insulation between them. 1.Classification of copper clad laminates Copper clad laminates are composed of three parts: copper foil, reinforcement material, and adhesive. Boards are usually classified according to the type of reinforcement material and adhesive type…
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Why do circuit boards need copper cladding?
ByGrace January 21, 2025January 20, 2025
Generally, there are several reasons for copper cladding. 1.EMC. For large-area ground or power copper cladding It will play a shielding role. Some special grounds, such as PGND, play a protective role. 2.PCB process requirements. Generally, in order to ensure the electroplating effect or lamination deformation, copper is laid on PCB layers with less wiring….
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Improved circuit board welding to cause false soldering
ByGrace January 21, 2025January 20, 2025
1 Surface tension The cohesive force of tin-lead solder is even greater than that of water, making the solder spherical to minimize its surface area (under the same volume, the sphere has the smallest surface area compared to other geometric shapes to meet the requirements of the lowest energy state). The effect of flux is…
Read More Improved circuit board welding to cause false soldering