Exploration on Industrial PCBA Assembly Process of R&D Enterprises (II)
Intercept the defective devices before welding to avoid the increase of maintenance cost and scrap risk after the defective mounting devices enter reflow welding.
Professional PCB manufacturing and assembly
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Pre-processing /THT/ hand welding process
It mainly includes color ring resistor, carbon film resistor, cement resistor, thermistor, varistor, resistor row, variable resistor
Solve the challenges of Mini LED printing process
For such a small print, the press must be able to provide an excellent solution to achieve maximum coplanicity between the substrate and the steel mesh.
PCB design reuse skills
How to cleverly design multiple circuits of the same circuit structure quickly: 1. Design code segments (code segments), 2. Equipment Table, 3. Multi-channel design method (Multi-channel)
PCB design differential wiring requirements and operating skills
PCB design differential wiring operation skills: 1, activate the wiring instruction, 2, support single line Mode, 3, in the layout of small space position differential wiring, can switch to the Neck Mode, 4, according to the wiring needs to select the app
Common problems in PCB design
What is the cause of PCB board broken line: 1, film process: 2, exposure process: 3, development process: 4, etching process: 5, electroplating problem: 6, improper operation
What are the characteristics of PCB circuit boards that are widely used?
he system speed can be greatly reduced because of the increase of delay time caused by the delay of 2ns per 30cm line length of the common interconnect on the baseboard. Image shift register synchronization counter.
Detail the cause of multilayer circuit board electroplating on nickel gold tin plate?
with the increase of labor cost and raw material price again and again, many customers began to require product price reduction to save costs.
How to make a good PCB board?
In short, the technological parameters and conditions of copper plating must be strictly controlled to ensure that the thickness of the copper plating layer in the hole meets the requirements of the technical standard.
Why does tin-spraying lead to uneven pad surface?
When entering the tin furnace, the liquid tin on the solder plate will be arc shaped by the surface tension of the liquid, resulting in uneven tin thickness on the solder plate.
Circuit board factory: Which kinds of rigid circuit boards are classified
The common multilayer board is generally 4 or 6 layers, complexMultilayer board can reach dozens of layers.
Circuit board tips: How to strengthen PCB circuit board BGA prevent cracking
The deformation of the circuit board (PCBA board) usually comes from the rapid temperature rise and rapid temperature drop (thermal expansion and cold contraction) caused by Reflow。
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