Patent ID: 6563216
Filing Date: 2003-05-13
Classification: H01L

Abstract:
A semiconductor device comprising: a semiconductor substrate; an insulation film formed on the semiconductor substrate; a patterned film formed on a portion of the insulation film; an interlayer insulation film formed on the insulation film and the patterned film and having a first stepped surface portion over the patterned film and a first contact hole in the first stepped surface portion; metal wiring formed over the first stepped surface portion of the interlayer insulation film and in the first contact hole; a protective film formed on the first stepped surface portion of the interlayer insulation film and the metal wiring and having a second stepped surface portion and a second contact hole; a barrier metal film formed on the protective film and having a third stepped surface portion disposed above and formed by the first and second stepped surface portions and the first and second contact holes; and a bump electrode formed on the third stepped surface portion of the barrier metal film.