HYBRID PRINTED CIRCUIT BOARD FOR MEMORY MODULE

摘要

PURPOSE: A hybrid printed circuit board is provided to satisfy the electronic characteristics of high frequency at a low cost. CONSTITUTION: A hybrid printed circuit board comprises an insulating layer having a dielectric constant of 4.0 or lower, wherein the insulating layer is deposited on the top, bottom or top and bottom of a copper layer having a circuit pattern corresponding to the signal line related to a signal input/output; and an FR4 insulating layer deposited between other layers. The insulating layer is a Teflon-based, polyphenylene ether-based or cyanate ester-based insulating layer.