PCBA foundry _ circuit board components
Circuit board composition: 1, welding plate: 2, layer number: 3, hole: 4, components: 5, wiring: 6, silk screen: 7, welding resistance layer: 8, positioning hole: 9, filling: 10, electrical boundary:
Контрактное производство электроники под ключ в Китае
Шэньчжэнь, район Баоань, улица Фуюн, улица Фуцяо, район 3, промышленный парк Лонгхуй 6
Detailed analysis of PCB vacuum etching technology, principle and advantages of detailed overview
Vacuum in this context refers to the negative pressure in the operating area of the system and the low suction force just enough to prevent the etching fluid from creating a puddle effect.
Design of high frequency PCB wiring
PCB is also known as the Printed Circuit Board (Printed Circuit Board), it can realize the circuit connection between electronic components and function realization, is also an important part of the power supply circuit design.
How to avoid HDI PCB design problems?
Maintain the integrity of signal transmission and prevent the "ground projectile phenomenon" caused by the division of ground wire.
PCB drawing design process
The preliminary preparation contains the preparatory component library and schematic diagram. Before PCB planning, the schematic SCH component library and PCB component packaging library should be prepared first.
PCB related concepts
The correct screen printing layer character placement criteria is: "no ambiguity, see stitches, beautiful and generous".
The difference between HDI circuit board and ordinary PCB circuit board
PCB board is a closed electronic device, is the electronic component of the support body, is the electronic component of the electrical joint carrier. HDI board is a high density interconnected circuit board.
PCB advantages and disadvantages of different surface treatment processes and applicable scenarios
If the PCB circuit board has the functional requirements and the demand to reduce the cost, Shen Yin is a good choice; With the outstanding flatness and touch of silver sinking, it is more appropriate to choose the silver sinking process.
Troubleshooting method of short circuit in PCBA processing
To introduce the troubleshooting method of short circuit in PCBA processing: Open the PCB design drawing on the computer, pay attention to the IC internal short circuit, three, if found short circuit, it is recommended to take a board secant line, step by
Explain the process of PCB circuit board manufacturing and packaging
Not paying attention to the packaging of products can bring immeasurable benefits.
High-end high precision PCB manufacturing
Exposed to heat, humidity and pollution, it can still provide excellent electrical properties and maintain satisfactory weldability, but it will miss shine.
PCB circuit board design should pay attention to the seven steps
The first step to enter the PCB circuit board system is to set the PCB preset background, including setting the grid volume and type, cursor type, version layer reference, wiring reference, etc.
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