Because cavity PCBs usually require continuous lamination steps, it is often difficult to predict/achieve registration. We have many years of experience in the manufacture of cavity PCBs and have set up models according to the number of laminates, the size of notches and the type of materials. In addition, we have created customized and proprietary tool systems to fix the material in place and ensure that the incision layer is aligned with the prepreg around it.
Exudation of adhesives
Because of our experience with many kinds of cavity boards, the model we set up can predict the flow of bonding materials most accurately, and thus can be processed to the optimum size.
Shallow cavity wiring
Most mechanical depth-controlled routers cannot maintain Z-axis tolerances less than 5-10 mils. Our CO2/UV laser system can solve this problem without pressure. We can process the covering material into a cavity less than 5 mil in height without damaging the exposed layer.
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