Aluminum alloy line resistive to stress migration formed in semiconductor integrated circuit

作者: Yasushi Higuchi , Kazunori Kawamoto , Ryoichi Kubokoya

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摘要: A first PSG film having a control hole is formed on silicon substrate circuit, and aluminum alloy line layer resistive to stress migration made of Al-Si the film, so as electrically contact, via contact hole, surface semiconductor substrate. The by use sputtering method, crystal face oriented, mainly in (111) plane, controlling temperature at time sputtering, well Ar gas pressure, depositing rate, degree vacuum prior commencement depositing. grain size l set satisfy "(W/14)

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