| 摘要 |
<p>Protective walls (11), higher than conductor patterns (10, 12, 13, 14) and (15), are formed between the conductor patterns (10, 12, 13, 14) and (15) on a circuit board (1). As a result, metal particles, which may be produced by fretting collision, cannot cause short circuits between the conductor patterns (10, 12, 13) and (14), which are electrically isolated from each other, thereby preventing malfunctions and damage to electronic parts.</p> |
