There are four main methods of electroplating in circuit board
Through the above five points of analysis, we should be able to find the cause of short circuit tinning of PCB board after wave soldering.
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What is a pcb board?
Printed circuit board, also known as printed circuit board, printed circuit board, shortened to build and circuit board, often use English (PCB Printed circuit board) or write PWB (Printed wire board), printed with insulation board as the base material, c
What is a pcb circuit board? How much do you know about the composition of PCB circuit board?
he computer has the computer circuit board, the machine has the machine circuit board, a lot of electronic products are required to be equipped with the corresponding circuit board.
PCB copy board and grinding board should pay attention to what matters?
communication Pcb board, automotive circuit board, instrument circuit board, Military circuit board, composite bus copper substrate, foldable metal substrate, FPC soft and hard combined board, quality assurance, delivery on time, to sales as one of the hi
Various circuit board process flow
The higher the TG value, the better the temperature resistance of the plate, especially in the lead-free process, high Tg is often used. High Tg means high heat resistance.
What are the differences between wash and wash free process of circuit board and the types of flux?
PCB wave soldering, surface welding to use detergent or pure water to clean off the pollutants on the board, with the design of electronic parts more and more diverse, but also more and more small, washing made gradually appeared some problems.
Why does PCBA circuit board need to spray three anti - paint?
Three anti-paint, also known as PCBA electronic circuit board protective oil, the use of three anti-paint PCBA circuit board with waterproof, moisture, dust "three", cold and heat shock resistance, aging resistance, radiation resistance, salt sp...
PCB board single panel, double panel, multi - layer board meaning
In the use of solder paste is to pay attention to the following requirements: 1. After the solder paste is purchased, write the number for each can of solder paste. 2, in the form of sealed storage in the constant temperature and humidity of the refrigera
printed circuit board wiring
Key signals such as analog small signal, high-speed signal, clock signal and synchronization signal are routed first, and the devices with the most complex connection relationship on the board are routed first.
How to repair circuit boards
Resistance is the most numerous component in electrical equipment, but it is not the component with the highest damage rate. Resistance damage is most common in open circuit, and resistance increases are rare and resistance decreases are rare.
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.
Hard to design PCB board, but do not let the hole destroyed!
Through hole is one of the important components of multi-layer PCB. From the perspective of function, through hole can be divided into two categories: one is the electrical connection between each layer; The second is the device fixing or positioning.
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