Patent ID: 6291361
Filing Date: 2001-09-18
Classification: H01L

Abstract:
A method of fabricating a semiconductor device of the type comprising a metal layer, an ARC layer disposed on said metal layer, and a photoresist pattern disposed on said ARC layer opposite said metal layer, the method comprising the steps of:placing said device in a fixture in a plasma etch chamber;supplying a first plasma etching chemistry to a surface of said device proximate said photoresist pattern;etching said ARC layer comprising an inorganic dielectric and said photoresist pattern in a first etching step using said first plasma etching chemistry while said device is in said fixture; andsupplying a second plasma etching chemistry to said workpiece surface; andetching said metal layer using said second plasma etching chemistry in a second etching step subsequent to said first etching step while said device remains in said fixture.