PCBA manual welding precautions
In the process of PCB processing, in addition to batch welding by reflow welding and wave soldering, manual welding is also needed to produce complete products.
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Introduction to PCBA flexible electronic production process and quality control
The FPC board is soft and not vacuum packed when leaving the factory. It is easy to absorb moisture in the air during transportation and storage. It needs to be pre-baked before SMT line casting to slowly force out the moisture.
The causes of plate bending and warping and the ways to prevent it
If the temperature of the board reaches the upper Tg value, the board will begin to soften, causing permanent deformation.
8 kinds of wave soldering quality defects and solutions
The crest is not smooth, the height on both sides is not parallel, especially when the solder nozzle of the electromagnetic pump crest welder is blocked by oxide, it will appear zigzag shape, which is easy to cause leakage welding and virtual welding.
Automatic wiring of PCB
Software vendors and third-party engineers have also tried and failed to achieve acceptable performance improvements.
Multi-person online collaborative PCB design
The load on the server is lighter than that on the client and therefore does not affect system performance. Tests on this environment show that the server is very responsive and does not slow down the client.
How to design pcb window opening
introduces how to realize the PCB wire window on tin, finally describes the PCB design how to set the steps of wire window, follow the small series together to understand.
In PCB design "ground" division and processing method
The specific use of which connection depends on the specific situation. These are the PCB design must understand the content, but also important data. How to partition in PADS is described later in this article.
Explain in detail the PCB design of phosphorus copper ball
In this paper, the key is to introduce PCB phosphorus copper ball in detail, the first detailed introduction of PCB electroplating copper need to use phosphorus containing copper ball, followed by the discussion of the use of phosphorus copper ball in PCB
How to reduce ESD interference in PCB design process
in the design of PCB board, PCB anti-ESD design can be realized by layering, proper layout and wiring and installation. The PCB layout and wiring can be adjusted to prevent ESD.
The difference between aluminum substrate and FR4 plate
Aluminum substrate and FR4 board are two common PCB board, aluminum substrate is commonly used as LED lamp board, and FR-4 board is suitable for general circuit design and common electronic products.
The debugging procedure and method of PCBA machining circuit board
PCBA machining circuit board debugging steps and methods: 1. Board surface observation and resistance check, 2. Install components, 3. Detect power supply output voltage, 4. Preset overcurrent protection current, 5. Install and test other modules
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