| 摘要 |
PROBLEM TO BE SOLVED: To provide a printed wiring board to which a plurality of piece substrates are imposed, which prevents the generation of cut powders from a slit end face, and also which prevents the generation of cut powders when a coupling part is cut and divided into pieces. SOLUTION: The coupling part connecting at least the piece substrate and an extra substrate surrounding the piece substrate is formed by an etchable metal. COPYRIGHT: (C)2010,JPO&INPIT |
