Copper alloy material and a method for fabricating the same

A method for fabricating a copper alloy material comprising:

• hot rolling process of hot rolling an ingot comprising a copper alloy to manufacture a sheet of the copper alloy;
• cold rolling process of cold rolling the sheet;
• solution treatment process of carrying out a solution treatment on the sheet after the cold rolling process;
• and
• finish cold rolling process of cold rolling the sheet after the solution treatment process,
• wherein the cold rolling process comprising cold rolling passes for plural times,
• wherein an area reduction ratio of the sheet in an initial cold rolling pass is greater than any of area reduction ratios of other cold rolling passes to produce a copper alloy material wherein diffraction intensities of the crystal faces in an inverse pole figure obtained by crystal diffraction measurement of the rolled surface as a reference satisfy the relationships of:
• {011}>{155}>{133},
• {011}>{023}>{012}, and
• {011}>{135}>{112}.