Patent ID: 6162729
Filing Date: 2000-12-19
Classification: H01L

Abstract:
A production method of a semiconductor device for filling in a wiring connection hole by sputtering deposition of aluminum or an alloy mainly comprising aluminum characterized by a process for first depositing aluminum or an alloy mainly comprising aluminum at a temperature of below 300.degree. C. (low-temperature sputtering), followed by a process for depositing aluminum or an alloy mainly comprising aluminum at or above 300.degree. C. (high-temperature sputtering), wherein a thickness A of the film of aluminum or an alloy mainly comprising aluminum deposited at a temperature of below 300.degree. C. and a thickness B of the film of aluminum or an alloy mainly comprising aluminum deposited at or above 300.degree. C. are in a relation of A>B, and a deposition rate of aluminum or an alloy mainly comprising aluminum deposited at or above 300.degree. C. is a rate which does not deteriorate the shape of a registration position measurement mark.