| 摘要 |
PROBLEM TO BE SOLVED: To obtain a printed wiring board in which a conductor pattern being insertion mounted with a lead component having an inter-terminal pitch of 2.5 mm and a conductor pattern being connected with a chip component at the time of surface mounting can be used commonly. SOLUTION: Each land 20 of a conductor pattern 2 has a part 21 extending from a round shape 11 toward other land 20 with reference to the round shape 11, and a part 22 formed by cutting the round shape 11 at a position facing the extended part 21 of other land 20 wherein the extended part 21 and the cut part 22 of each land 20 are arranged on the opposite sides of a center line (c) connecting the central points of a pair of through holes 10. Since such a conductor pattern 2 is provided, a printed wiring board can mount a chip component such that the longitudinal direction thereof becomes parallel with the width direction (a) of the conductor pattern 2. COPYRIGHT: (C)2005,JPO&NCIPI
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