Patent ID: 6518165
Filing Date: 2003-02-11
Classification: H01L

Abstract:
A method for manufacturing a semiconductor device having a substrate 101 and a metal layer floating over the substrate 101, the method comprising the steps of:forming a first metal layer 203 on the substrate 101; forming a second metal layer 205 on a portion of said first metal layer 203 such that side surfaces of said second metal layer 205 and an upper surface of other portion of said first metal layer 203 on which said second metal layer 205 is not formed define a recess; forming a third metal layer 102 on said first and second metal layers 203 and 205 such that a portion of said third metal layer 102 is located on a predetermined portion of said second metal layer 205 and other portion of said third metal layer 102 fills said recess; removing said second metal layer 205; and removing a portion of said first metal layer 203 which is not covered by said third metal layer 102.