Patent ID: 6455329
Filing Date: 2002-09-24
Classification: H01L

Abstract:
A method for fabricating a capacitor in a semiconductor device, comprising the steps of:forming a semiconductor device having a source, a drain, and a gate on a semiconductor substrate; forming an interlayer insulating film having a contact hole exposing the source; forming a conductive layer in the contact hole; forming a lower electrode on the interlayer insulating film, inclusive of the conductive layer; coating an insulating material on the lower electrode for forming a dielectric film; subjecting the insulating material to a first rapid thermal annealing of a first temperature in a chamber, to form nuclei oriented along an a-b axis; subjecting the insulating material to a second rapid thermal annealing at a second temperature higher than the first temperature in the chamber, to grow the nuclei oriented along the a-b axis, to form a dielectric film; and forming an upper electrode on the dielectric film.