Patent ID: 6169019
Filing Date: 2001-01-02
Classification: H01L

Abstract:
A semiconductor apparatus comprising: a base layer; a first conductive layer formed on the base layer; an interlayered insulating film formed on the base layer, the interlayered insulating film covering the first conductive layer and having a contact hole opening toward the first conductive layer; an etch stop insulating film formed between the base layer and the interlayered insulating film, the etch stop insulating film covering the first conductive layer; and a second conductive layer formed in the contact hole formed in the interlayered insulating film; and an alloyed layer formed between the first conductive layer and the second conductive layer and having a composition containing an atom for forming the etch stop insulating film and a metal atom of at least one of the first conductive layer and the second conductive layer.