| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rolled copper foil which can exert stable, excellent properties for a bending fatigue life even after application of heat treatment in the range of wide temperature conditions. <P>SOLUTION: The rolled copper foil includes: copper (Cu) as the main component with inevitable impurities; boron (B); silver (Ag); and one or more kinds of additive elements selected from an elemental group excluding copper (Cu) and silver (Ag), which has a face-centered cubic crystal structure and also has the value of stacking fault energy higher than that of copper (Cu). <P>COPYRIGHT: (C)2012,JPO&INPIT |
