PRINTED WIRING BOARD AND METHOD OF DETECTING INTERLAYER MISREGISTRATION THEREOF

摘要

PROBLEM TO BE SOLVED: To provide a printed wiring board in which misregistration occurring in conductor layers can be accurately and quickly measured. SOLUTION: Insulating layers 3 and conductor layers 2 are alternately laminated for the formation of a printed wiring board 1. Divisions 4 each composed of a plurality of masks 5 arranged at an equal pitch are formed on at least the conductor layer 2. The other divisions 4 each composed of a plurality of marks 5 arranged at a regular pitch different from that of the former division 4 are formed on the other conductor layer 2. The divisions are formed on the conductor layer 2 at a prescribed position so as to make the direction of arrangement of the marks 5 includes in the former division 4 in parallel with that of the marks 5 included in the latter division 4.