Patent ID: 6272736
Filing Date: 2001-08-14
Classification: H01C,H01L,Y10T

Abstract:
A method for forming a thin-film resistor, comprising the steps of:providing a substrate having a first insulator disposed thereon;forming a thin-film resistor layer on the first insulator;patterning the thin-film resistor layer to form a thin-film,resistor;forming a second insulator on the substrate and the thin-film resistor;forming a third insulator on the second insulator;forming a first contact hole through said second and third insulators to expose a first region of said substrate;forming a second contact hole through said second and third insulators to expose a second region of said thin-film resistor, wherein said third insulator masks the second insulator in forming said second contact hole; andforming first and second interconnects by performing a metallization process to fill the first contact hole and the second contact hole with metal, respectively.