| 摘要 |
PROBLEM TO BE SOLVED: To prevent a mark from being changed to a state where the function is spoiled even if an electrode is polished. SOLUTION: A multilayer wiring board comprises a board layer having wiring patterns formed by a plurality of wirings in multiple layers, an auxiliary layer comprising an auxiliary pattern provided on the upper surface of the board layer and an electrical insulating material which covers the auxiliary pattern, an electrode pattern formed by a plurality of electrodes provided on the upper surface of the auxiliary layer, and an alignment mark provided on the upper surface of the auxiliary layer. The auxiliary pattern is formed between the board layer and the mark and is not formed immediately below the mark. COPYRIGHT: (C)2010,JPO&INPIT |
