| 摘要 |
<p>Object: To provide a test coupon for printed wiring boards of which the projecting length from the printed wiring board is short. Constitution: First and second groups (14, 15, 31, 32) of through holes are provided at both ends of a coupon area (E2). Conductor patterns (24 to 29) for electrically connecting the through holes (14a, 15a, 31a, 32a) are extended among the first and second groups (14, 15, 31, 32) of through holes. The direction where the conductor patterns (24 to 29) are extended are the same as that where the through holes (14a, 15a, 31a, 32a) are extended. Hence, a test coupon (12) can be extended along the edge of a printed wiring board (11) not in proportion to the number of through holes (53, 54).</p> |
