Ten PCB circuit board design questions and answers
PCB technology is very complex, involving many aspects of the problem, whether in the design stage or the production stage, there are a lot of problems need to be answered.
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What problems should be paid attention to in high speed PCB hole design?
he PCB hole is mainly composed of the hole, the bright plate area around the hole, and a part of the power layer isolation area. In high speed PCB design, it is often necessary to use multi-layer PCB, and the hole is multi-original.An important factor in
PCB design surface should be coated with copper
Copper coating has advantages and disadvantages. PCB design for two layer board, high resistance loop, multilayer board (microstrip line), copper coating is very necessary. For multilayer high speed digital circuits with a complete power supply and ground
PCB boards often peel off the original size Reasons
A typical manufacturer can only request it twice per production cycle, and only check it once every few months. IR testing in simulated batches also prevents more spills of defective products, which are a prerequisite for quality PCB factories. In additio
Notes for avionics PCB development
Avionics and PCB board development requires special consideration and timely action to ensure that your design and manufacture meet aerospace industry standards.
PCB screen printing
In short, electronic screen printing technology refers to the combination of electronic information technology and screen printing technology formed a new modern screen printing technology with the characteristics of electronic information technology.
PCB factory Fufu 20% cash reduction case declaration effective Fufu Electronics Co.
The director of Fufu Electronics pointed out today that this cash reduction plan is expected to be implemented in the fourth quarter after the completion of various application procedures to the competent authorities.
PCB type and preparation method are introduced
Teach all process personnel to wear gloves to handle copper-clad plates. Make sure that the laminate is shipped with the appropriate padding paper or in a bag, that the padding paper is low in sulfur, that the bag is free of dirt, and that no one touches
Eight PCB panel guide
Although PCB designers can make their own panels, contract manufacturers are generally recommended to carry out this work. Manufacturers collaborate to build and design panels based on size, shape, assembly standards and expected production volumes.
Process defects in PCB board design
Some customers have designed contour lines for Keep layer, Board layer, Top over layer and so on, and these contour lines do not coincide, which makes it difficult for pcb manufacturers to judge which contour line shall prevail.
IN terms of PCB design
After PCB production, SMT welding can be carried out directly, which brings great convenience to customers and saves cost. Through technology integration, quality can be improved to a greater extent, and quality problems can be eliminated in the bud.
Multilayer PCB circuit processing
through holes are only used to connect the wires on both sides of the circuit board, the number of holes is much less, and the diameter of holes is much smaller. This design can greatly improve the installation density of PCB components.
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