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.
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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.
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.
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.
PCB circuit board surface treatment process simply said
Several parts of the circuit board are mainly: 1. Bare copper plate: 2. Gold plate: 3. Spray tin circuit board: 4. OSP process board is also called organic welding film in SMT factory.
Recycling of waste printed circuit board non-metallic powder
The base material of printed circuit board is usually glass fiber reinforced phenolic resin or epoxy resin, and various components are welded on it. The composition is very complex, including a variety of metals, which has high resource recovery value.
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.
Among the four ceramic circuit board manufacturing technologies, laser activated metallization will become the main process
With the gradual development of electronic products to fine and intelligent, more materials are applied in them. Understand the characteristics of various materials used in the product, and adopt more suitable laser processing technology and process.
Circuit and substrate flush PCB circuit board production process development
If the contact or line on the PCB circuit board needs to contact with the parts over and over again, with the passage of the product office hours, the appearance of the metal will reveal a certain wear, so the contact is not good.
Precautions in the production process of PCB circuit board proofing
PCB proofing refers to the trial production of PCB before mass production. After the electronic engineer presets the circuit and completes the PCB Layout, he carries out the process of small batch trial production to the factory, that is, PCB proofing.
Explain the process of manufacturing circuit board
Circuit presets and circuit board presets are designed to produce satisfactory circuit boards and successfully achieve the value of research and development and the target of mass production.
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