作者: Nishimoto Akihiko
DOI:
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摘要: PROBLEM TO BE SOLVED: To improve high frequency characteristic and close contact of wiring layers also to prevent deterioration insulation resistance for reduction pitch between wires wiring. SOLUTION: The board is provided with an insulating layer 15 including at least resin a 11. At part the 11 includes covering structure consisting main 11a metal 11b having composition which different from that entire circumference 11a. COPYRIGHT: (C)2006,JPO&NCIPI