ROLLED COPPER FOIL, CAPABLE OF INCLUDING AN EXCELLENT DISTORTION CHARACTERISTIC WITH BASE RIGIDITY AFTER A RECRYSTALLIZATION ANNEALING PROCESS

摘要

PURPOSE: A rolled copper foil is provided to have an excellent distortion characteristic with base rigidity after a recrystallization annealing process.;CONSTITUTION: A rolled copper foil comprises a major surface, and multiple crystal faces parallel to the major surface. The rolled copper foil is after a final cool rolled process, and before a recrystallization annealing process. The multiple crystal faces comprises {022} side, {002} side, {113} side, {111} side, and {133} side. When a diffraction peak intensity of each crystal plane obtained from an X-ray diffraction measurement by 2&thgr; / &thgr; method about a major surface is defined as respective I {022}, I {002}, I {113}, I {111}, and I {133}, I {022} / (I(022) + I(002) + I(113) + I(111) + I(133)) = 0.50, (I{002} + I{113}) The / (I(111) + I(133)) = 1.0, I {022} / I {002} = 8.0, I {022} / I {113} = 30, I {022} / I {111} = 7.0, I {022} / I {133} = 10, 1.0 = I {002} / I {113} = 15, I {111} / I {133} = 10, I {113} / I {111} = 0.30, 1.0 = I {002} / I {111} = 20, 1.0 = I {002} / I {133} = 75, and 0.50 = I {113} / I {133} = 20.;COPYRIGHT KIPO 2013;[Reference numerals] (AA) Start rolled copper foil; (BB) (fixed repetition time) repetition process; (CC) End rolled copper foil; (S10) Preparation process for ingot; (S20) Hot rolling process; (S30) Repetition process; (S31) Cold rolled process; (S32) Medium annealing process; (S40) Copper annealing process; (S50) Final cold rolled process; (S60) Surface finishing process