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lichao2013



Posts : 9
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Join date : 2013-08-07

PostSubject: PCB component placement   Wed Aug 28, 2013 3:39 pm

Before proceeding with the detailed PCB design and layout, it is necessary to gain a rough idea of where components will be located and whether there is sufficient space on the board to contain all the required circuitry. This will enable decisions about the number of layers needed in the board, and also whether there is sufficient space to contain all the circuitry may need to be made.
Once a rough estimate has been made of the space and approximate locations of the components, a more detailed component layout can be made for the PCB design. This can take into account aspects such as the proximity of devices that may need to communicate with each other, and other information pertaining to any RF considerations for example.
In order that components can be incorporated into the PCB design they must have all the relevant information associated with them. This will include the footprint for the printed circuit board pads, any drilling information, keep out areas and the like. Typically several devices may share the same footprint, so this information does not have to be entered for each component part number. However a library for all the devices used will be built up within the http://www.aliexpress.com/store/233890 Professional custom PCB The most professional PCB manufacturer in China High quality, low price layout design system. In this way components that have been used previously can be called up easily.
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