1.Impact of Raw materials on inner layer Shorts: The dimensional stability of multilayer PCB materials is the primary factor affecting the positioning accuracy of inner layers.The thermal expansion coefficients of the substrate and copper foil must also be considered.Regarding the physical properties of the substrate used,laminates all contain ploymers,which undergo a structual changes at a…
PCB engineers layout a product, not only layout and wiring, but also the design of inner power plane and ground plane is very important. In dealing with the inner layer, we must not only consider power integrity, signal integrity, electromagnetic compatibility, but also DFM manufacturability. The difference between the inner layer and the surface layer…
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