| 摘要 |
PROBLEM TO BE SOLVED: To provide a high-reliable 3D steric circuit board of a cavity structure, wherein the circuit board can be efficiently mounted without restriction of a wiring pattern even when a metal lid is used.SOLUTION: The 3D steric circuit board 10 including an insulating board 1 having a recessed part, a plurality of wiring patterns 11 formed on the recessed part 5 of the insulating board 1, and an engagement part 6 engaging with a metal lid 3 formed to seal a region surrounding the recessed part is structured such that, in the engagement part 6, a surface of at least one wiring pattern (grounding line) 11g out of the wiring patterns is formed high, and abuts on the metal lid 3. |
