| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a multilayer substrate which suppresses interference of signals, can be thinned, and is capable of obtaining desired characteristic impedance. <P>SOLUTION: The multilayer substrate of the present invention, in which a plurality of insulating layers and a plurality of conductor layers are laminated, comprises: a core 10 which is the thickest of the conductor layers and functions as ground wiring; and signal wiring 14a which is included in the conductor layers and is adjacent to the core 10 via an insulating layer 22 and through which a high-frequency signal flows. A recess 10a is provided in that region of the core 10 which faces the signal wiring 14a. <P>COPYRIGHT: (C)2013,JPO&INPIT |
