| 摘要 |
<p>AN COPPER ALLOY STRIP MATERIAL FOR ELECTRICAL/ELECTRONIC COMPONENTS ACCORDING TO THE PRESENT INVENTION IS CHARACTERIZED IN THAT SUCH THE COPPER ALLOY STRIP MATERIAL FOR ELECTRICAL/ELECTRONIC COMPONENTS INCLUDES: NI AS BETWEEN 1.5 MASS% AND 4.0 MASS%; SI AS BETWEEN 0.3 MASS% AND 1.5 MASS%; AND THE BALANCE BEING CU AND UNAVOIDABLE IMPURITIES, WHEREIN A MEAN ROUGHNESS RA OF A SURFACE ROUGHNESS IS NOT LARGER THAN 0.3 µM REGARDING THE STRIP IN A DIRECTION AS RIGHT ANGLE TO A DIRECTION A ROLLING THERE FOR, A MAXIMUM HEIGHT RY THEREOF IS NOT HIGHER THAN 3.0 µM REGARDING THE SAME THEREIN, AND THERE IS POSITIONED A PEAK POSITION REGARDING A FREQUENCY CURVE, THAT REPRESENTS A CONCAVE COMPONENT OF THE SURFACE ROUGHNESS AND/OR A CONVEX COMPONENT THEREOF, AT THE PLUS SIDE (THE SIDE FOR THE CONVEX COMPONENT) COMPARING TO AN AVERAGE VALUE OF THE CURVE FOR MEANING THE SURFACE ROUGHNESS.</p> |
