Patent ID: 7037862
Filing Date: 2006-05-02
Classification: H01L

Abstract:
1. A method of corming a dielectric layer comprising: providing a substrate comprising a silicon-containing surface; forming a first metal-containing layer over the surface, all the metal of the first layer consisting of at least one element selected from Group IVB of the periodic table; forming a second metal-containing layer on and in contact with the first metal-containing layer, all the metal of the second layer consisting of at least one element selected from GROUP IIIB of the periodic table; exposing the first layer and the second layer to an oxygen comprising atmosphere and heating the first layer and the second layer to temperature effective to form a first metal-containing dielectric layer consisting of metal oxide and a second metal-containing dielectric layer consisting of metal oxide; and including the first and second metal-containing dielectric layers in an integrated circuit device.