Patent ID: 6541378
Filing Date: 2003-04-01
Classification: H01L,H05K

Abstract:
A method for making a high-density interconnection between at least one component and one integrated circuit, said method comprising the steps of:procuring a component having its copper-containing electrical contacts lying in a common plane; procuring a film of polyimide dielectric material; laminating said film to at least said electrical contacts of said component using a layer of silicone polyimide epoxy adhesive; following said laminating step, laser-forming vias through said film of polyimide epoxy adhesive and any polyimide dielectric material to at least some of said electrical contacts of said component, whereby soot and copper oxides may remain on said electrical contacts; cleaning at least said vias and that portion of said electrical contacts exposed at the bottoms of said vias by at least argon reactive ion etching, to generate cleaned vias and contacts; and metallizing at least said cleaned vias and contacts, to form a path for the flow of electricity through said film of polyimide dielectric material to said electrical contacts.