pcb design

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What is PCB
ByGrace December 3, 2024December 4, 2024
PCB is the abbreviation of Printed Circuit Board. Its Chinese name is printed circuit board, also known as printed circuit board, printed circuit board, which is an important electronic component, a support for electronic components, and a provider of electrical connections for electronic components. Because it is made by electronic printing, it is called a…
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What is conformal coating and how to use it?
ByGrace December 3, 2024December 4, 2024
1.What is conformal coating? Conformal coating is a specially formulated coating used to protect circuit boards and related equipment from environmental erosion. Conformal coating has good high and low temperature resistance; after curing, it forms a transparent protective film with excellent insulation, moisture-proof, leakage-proof, shock-proof, dust-proof, corrosion-proof, anti-aging, and corona-resistant properties. Under realistic conditions, such…
Read More What is conformal coating and how to use it?
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High Temperature PCB – Circuit Boards for High Temperature Applications
ByGrace December 2, 2024November 28, 2024
It’s no secret that designers are squeezing more performance out of printed circuit boards. Power densities are rising, and with them come higher temperatures that can wreak havoc on conductors and dielectrics. Increased temperatures—whether from I2R losses or environmental factors—affect thermal and electrical impedances, leading to erratic system performance, if not outright failure. Differences in…
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Hole metallization of FPC and copper foil surface cleaning process
ByGrace November 30, 2024November 28, 2024
The hole metallization of the flexible printed board is substantially the same as the hole metal process of the rigid printed board. In recent years, there has been a substitution electroless plating process using a direct electroplating process that forms a carbon conductive layer technology. Hole metallization of flexible printed boards has also introduced this…
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Why should the PCB board “paste gold”
ByGrace November 30, 2024November 27, 2024
1 PCB board surface treatment Anti-oxidation, spray tin, lead-free spray tin, immersion gold, Shen tin, Shen silver, hard gold plating, the whole board gold-plated, Goldfinger, nickel palladium Gold OSP: the cost of the end, good solderability, storage conditions harsh, time Short, environmentally friendly technology, welding is good, smooth. Spray tin: spray tin plate is generally…
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How to do the RF work well
ByGrace November 30, 2024November 27, 2024
A RF product engineer should have what knowledge, how to do the RF product work well. There is a dozens of discussion stickers on this issue, it seems this is a common problem. So how can the RF products work well? Can say that no one would say that this or that way, we can…
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Printed Circuit Board Design Tips
ByGrace November 30, 2024November 28, 2024
At present, electronic equipment is still used in printed circuit boards as the main assembly method for various electronic devices and systems. Practice has proved that even if the circuit schematic design is correct, improper design of the printed circuit board will also have an adverse effect on the reliability of electronic equipment. For example,…
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LED aluminum substrate process and material selection
ByGrace November 30, 2024November 28, 2024
The aluminum substrate PCB consists of a circuit layer (copper foil layer), a thermally conductive insulating layer, and a metal base layer. The circuit layer requires a large current-carrying capacity, so thick copper foil should be used, and the thickness is generally 35μm~280μm. The thermal insulation layer is the core technology of the PCB aluminum…
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The influence and requirements of different manufacturing processes on the pads on the PCB
ByGrace November 29, 2024November 27, 2024
1. The test points must be added to the components of the chip components that are not connected to the plug-in components. The diameter of the test points is between 1.0mm and 1.5mm, which is convenient for online tester testing. The edge of the test pad is at least 0.4 mm from the edge of…
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A brief discussion on key materials for high-frequency microwave RF PCB circuit boards
ByGrace November 29, 2024November 26, 2024
The circuit materials of printed circuit boards (PCBs) are key building blocks of radio frequency (RF)/microwave circuits – essentially the starting point of these circuits. PCB materials come in many different forms, and the choice of materials depends largely on the requirements of the intended application. For example, materials that reliably support high-frequency circuits in…
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Why can’t I touch the board with my hand?
ByGrace November 28, 2024November 25, 2024
It is a common knowledge of electronics engineers that human hands cannot directly touch or touch a circuit board. Why? First, the harm of static electricity In different environments, the electrostatic voltage carried by the human body ranges from a few hundred volts to several tens of thousands of volts. Contact with electronic components (conductors)…
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What rules should be followed when designing PCB pads?
ByGrace November 28, 2024November 26, 2024
1.PCB pads PCB pads: Components are fixed to the PCB through the lead holes on the PCB with solder, and the printed wires connect the pads to achieve electrical connection of the components in the circuit. The lead holes and the surrounding copper foil are called pads. Types of PCB pads include: Square pads –…
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ESD protection circuit design for pcb
ByGrace November 27, 2024November 25, 2024
Static electricity from the human body, the environment, and even inside electronic devices can cause various damages to precision semiconductor chips, such as: Penetrating the thin insulating layer inside the components;Destroying the gate of MOSFET and CMOS components;Locked triggers in CMOS devices; Short-circuiting reverse-biased PN junctions;Short-circuiting forward-biased PN junctions;Melt welding wires or aluminum wires inside…
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Electronic engineers often make these mistakes
ByGrace November 27, 2024November 25, 2024
Everyone in PCB design knows that solder mask is a layer of ink printed on the PCB surface. It not only plays the role of insulation, but also protects the copper surface. It also plays a beautiful and beautiful role. It is like wearing on the outside of the PCB. A piece of clothing, so…
Read More Electronic engineers often make these mistakes
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Discussion on Electromagnetic Compatibility Design of SCM System from PCB Design to Software Processing
ByGrace November 27, 2024November 23, 2024
PCB design to software processing to introduce the handling of electromagnetic compatibility. First, the factors that affect EMC 1, the voltage: the higher the power supply voltage, means that the greater the voltage amplitude, the more emission, and low power supply voltage sensitivity. 2, frequency: high-frequency produce more emissions, periodic signals produce more emissions. In…
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pcb design

What is PCB

What is conformal coating and how to use it?

High Temperature PCB – Circuit Boards for High Temperature Applications

Hole metallization of FPC and copper foil surface cleaning process

Why should the PCB board “paste gold”

How to do the RF work well

Printed Circuit Board Design Tips

LED aluminum substrate process and material selection

The influence and requirements of different manufacturing processes on the pads on the PCB

A brief discussion on key materials for high-frequency microwave RF PCB circuit boards

Why can’t I touch the board with my hand?

What rules should be followed when designing PCB pads?

ESD protection circuit design for pcb

Electronic engineers often make these mistakes

Discussion on Electromagnetic Compatibility Design of SCM System from PCB Design to Software Processing

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