What are the differences between PCB layers?
In the design of PCB, I found that many people do not understand the layers of PCB, each layer has the characteristics of each layer, function.
Контрактное производство электроники под ключ в Китае
Шэньчжэнь, район Баоань, улица Фуюн, улица Фуцяо, район 3, промышленный парк Лонгхуй 6
How does a PCBA electronics engineer repair a non-drawing circuit board?
When looking for faulty capacitors, it is important to check the capacitors close to the heat source, such as the capacitors near the heat sink and high-power components. The closer to the capacitors, the greater the possibility of damage.
SMT patch, PCB board, PCBA circuit board, DIP plug-in you know how much
PCBA is one of the basic components of electronic components, PCB it through surface assembly technology (SMT), and the whole process of DIP plug-in insertion, known as PCBA process.
What are the requirements of flux in SMT patch processing
The physical characteristics of flux refer to melting point, surface tension, viscosity, mixing and so on, which are related to welding performance.
Working environment of SMT production equipment
Eliminate tin bead operation as far as possible not through direct removal of tin bead, in the production process to pay attention to: 1, steel mesh: 1, according to the size of the welding plate opening, 2, steel mesh but thick, 3, when mounting pressure
Multilayer soft and hard joint circuit board production solution
Soft and hard combination board is considered appropriate and the use of rigid (FR4) materials and flexible (PI or PET) materials combination, is a kind of both rigid PCB durability and flexible PCB suitable force of the new printed circuit board.
The problems that should be paid attention to when drawing PCB drawing are discussed from welding point of view
From PCB design to the completion of welding of all components into a high quality circuit board, PCB design engineers and even the level of welding process, welding workers and many other links have strict control.
What are the advantages of PCB bottom layer of copper?
Engineers in the whole process of PCB design, in order to save time all want to ignore the table bottom of the whole board laying copper this link.
Detail impedance matching
Input impedance is no different from a normal reactance element, which reflects the amount of resistance to current. For a voltage-driven circuit, the greater the input impedance, the lighter the load on the voltage source,
What is the inside of multilayer PCB?
Because the copper plating is not satisfied, the hole inside is empty, so it can not be directly punched on the above, to stagger a certain distance, and then hit a layer of empty.
Recycle PCB components for other purposes
One of the important criteria for determining the requirements for recycling components is to know how to place components on the next board. One of the final standards is the type of component packaging required.
Why should PCB circuit board brush three anti paint
Three anti paint has satisfactory high and low temperature resistance; It cures into a transparent film that tries to protect the circuit from damage in such conditions as chemicals, shock, moisture, salt spray, moisture and high temperatures.
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