An apparatus and method are provided for effectively heating a first die stacked above a second die attached onto a substrate during wire bonding conducted on the first die. An embodiment of the invention includes a compression system for compressing the destination address as a compressed MaxiCode symbol, a smart shipping label system for generating a shipping label with a compressed MaxiCode and a pre-load assist system for generating package handling instructions from the electronically-captured destination address. , cold rolling the hot-rolled steel sheet at a reduction ratio of 50% or more; and recovery-recrystallization annealing the cold-rolled steel sheet at a line speed of 150-200 mpm and at a temperature of 780-820\xb0 C.