Patent ID: 6110769
Filing Date: 2000-08-29
Classification: H01L,Y10S

Abstract:
A method for fabricating an SOI device comprising the steps of:forming first insulating films formed in a first semiconductor substrate to be spaced apart by a predetermined distance;forming first buried insulating layers to expose predetermined areas of the first semiconductor substrate between the first insulating films;forming a first silicon layer on the first semiconductor substrate including the first buried insulating layers;forming a second buried insulating layer on a second semiconductor substrate;bonding the first silicon layer with the second buried insulating layer;polishing the first semiconductor substrate until the first insulating films are exposed to form semiconductor layers of first and second regions;implanting ions into the first silicon layer to form a first conductivity type silicon layer;forming a gate electrode on the semiconductor layer of the first region;implanting ions into the semiconductor layer of the second region to form a second conductivity type semiconductor layer;forming impurity regions in the semiconductor layer of the first region at both sides of the gate electrode; andforming a contact pad in contact with the second conductivity type semiconductor layer and simultaneously line layers in contact with the impurity regions.