Patent ID: 6319804
Filing Date: 2001-11-20
Classification: H01L

Abstract:
A method of forming a semiconductor device, comprising the steps ofa) providing a substrate having an insulating layer formed thereon;b) forming a gate stack over said substrate, said gate stack having:(i) a first gate material layer doped with a first dopant at a first doping level;(ii) a first conducting layer comprised of a conducting material capable of surviving thermal processing; and(iii) a blocking layer thicker than about 1000 .ANG.;c) forming heavily doped source-drain regions in said substrate, said heavily doped source-drain regions in said substrate doped with a second dopant at a second doping level;d) forming a second conducting layer over said heavily doped source-rain regions; ande) performing an activation cycle comprising heating said substrate to at least approximately 1000.degree. C.