In the high frequency and high speed PCB design and technology, we typically use the multilayer PCB. Basically multilayer PCB is incorporated by itching bits of single-sided layer or of twofold sided layer then the coating and paste. As compared to the single layer PC and twofold layer PCB, High frequency circuit board have a great deal of important points, particularly in little volume electronic items for developing applications, here are a few preferences of high frequency circuit board.
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