A large area of the power layer can make wiring easy, but this structure often leads to deterioration of system performance. Connecting all the power leads together on a large plane cannot avoid noise transmission between pins.
pad according to pad, this is the plug-in hole, via you have two choices, if you provide the original file, you can choose when placing the order, if you provide the gerber file, please check whether the gerber file meets your requirements!
All switching power supplies on the circuit board have the same components and similar current path sensitivity.
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.
The fact that there are few restrictions on where components can be placed and no "infallible" rules doesn't mean you can do whatever you want.
In any switching power supply design, the physical design of the PCB board is the last link. If the design method is not correct, the PCB may radiate excessive electromagnetic interference, causing the power supply to work unstable.
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.
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.
Failure to provide sufficient time and effort for the PCB layout and wiring phase of the design can lead to problems in the manufacturing phase or functional deficiencies as the design moves from the digital domain to the physical reality.
For you to introduce the circuit board design precautions and operation skills :1, the processing level definition to be clear, 2, the distance from the copper foil frame can not be too close, 3, can not use the filler block picture welding pad, 4, electr
What are the features of SMT processing BGA assembly: 1, the BGA pin (welding ball) is located under the package body, 2, before mounting must confirm whether it meets the process requirements, 3, in the PCB design should be as far as possible to lay it a
The most important material for printed circuit boards is copper, from which most boards are made.
