Invention Grant
US08633392B2 Circuit board with high-density circuit patterns 有权
电路板采用高密度电路图案

Circuit board with high-density circuit patterns
Abstract:
A circuit board including: an insulator having a trench; a first circuit pattern formed to bury a portion of the trench; and a second circuit pattern formed on a surface of the insulator having the trench formed therein.
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