Patent ID: 6103615
Filing Date: 2000-08-15
Classification: H01L,Y10S

Abstract:
A process of forming a semiconductor wafer including a corrosion monitoring feature, comprising:defining on a surface of said semiconductor substrate an active die region and a scribeline region that is adjacent said active die region;depositing an insulating layer above said semiconductor substrate surface;forming a first and a second corrosion sensitive metal plug in said insulating layer in said scribeline region; anddepositing and patterning a metallization layer above said insulating layer, said first and said second corrosion sensitive metal plugs in said scribeline region such that said metallization layer above said second corrosion sensitive metal plug includes a first opening that extends from a top surface of said metallization layer down to a top surface of said second corrosion sensitive metal plug so that a liquid introduced above said top surface of said metallization layer flows into said second corrosion sensitive metal plug.