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Engineering Technology

Engineering Technology

PCB high speed board wiring experience of more than 4 layers
14Jun
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PCB high speed board wiring experience of more than 4 layers

the oscillating circuit components as close as possible to the IC, the oscillating circuit as far as possible away from the antenna and other vulnerable areas. Put a ground pad under the crystal oscillator.

Electromagnetic compatibility design of mobile phone PCB
14Jun
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Electromagnetic compatibility design of mobile phone PCB

Differential PCB lines are usually always routed in pairs, and the distance between them along the direction of the pair remains a constant at any position. In general, the layout of the differential pair is always as close as possible.

Realize the design of efficient automatic PCB routing
14Jun
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Realize the design of efficient automatic PCB routing

​Now PCB design time is getting shorter and shorter, smaller and smaller board space, higher and higher device density, extremely demanding layout rules and large-size components make the designer's job more difficult.

About the four basic characteristics of RF circuits in PCB design
13Jun
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About the four basic characteristics of RF circuits in PCB design

Transmitters have two main PCB design goals: the first is that they must emit a specific amount of power while consuming the least amount of power possible. Second, they cannot interfere with the normal operation of transceivers in adjacent channels.

Copper sulfate PCB electroplating process
13Jun
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Copper sulfate PCB electroplating process

The main components of the bath are copper sulfate and sulfuric acid, and the formula of high acid and low copper is adopted to ensure the uniform thickness distribution of the plate and the deep plating ability of deep holes during electroplating.

Common defects on the copper surface of the substrate
12Jun
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Common defects on the copper surface of the substrate

the core board (GND to POWER) should not be too thick to reduce the distributed impedance of the power supply and ground plane; Ensure the decoupling effect of the power plane.

Changes in the size of the substrate in the printed board manufacturing process
06Jun
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Changes in the size of the substrate in the printed board manufacturing process

In the rapid development of science and technology today, a variety of high-tech electronic products emerge in an endless stream, which makes the demand for printed circuit boards increase sharply, manufacturing difficulties are becoming higher and higher

PCB substrate prone to problems analysis and solutions
06Jun
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PCB substrate prone to problems analysis and solutions

In order to ensure the high quality and high stability of the printed circuit board, to achieve the total quality management of the PCB factory and the control of the environment, it is necessary to fully understand the characteristics of the printed circ

  BGA component assembly
05Jun
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BGA component assembly

BGA component assembly1. PBGA (PLASTICBALL GRID ARRAY) plastic package BGAIts advantages are:①Good thermal matching with epoxy resin circuit board.② Solder balls participate in the formation of solder joints during reflow soldering, and the requirements f

                 BGA package introduction
05Jun
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BGA package introduction

BGA package introduction BGA package (Ball Grid Array Package), that is, ball grid array, is a surface mount package chip used for an integrated circuit. Xiaoliu, I was a little confused at the beginning, what the hell is a ball grid array? In fact

   Integrated circuit board environmental protection ROHS testing
04Jun
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Integrated circuit board environmental protection ROHS testing

Integrated circuit board environmental protection ROHS testingThe integrated circuit board ROHS detection circuit board makes the circuit miniaturized and intuitive, and plays an important role in the mass production of fixed circuits and the optimization

  What types of consumer electronics are PCB boards suitable for
03Jun
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What types of consumer electronics are PCB boards suitable for

What types of consumer electronics are PCB boards suitable forBasically, all electronic products need to use PCB boards, but not every electrical appliance needs a circuit board, simple electrical appliances may not need a circuit, such as a motor. So, wh

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