Patent ID: 6733584
Filing Date: 2004-05-11
Classification: H01L

Abstract:
A method of forming a crystalline semiconductor film comprising silicon for crystallizing an amorphous semiconductor film comprising silicon formed over a substrate by a horizontal growth process using a catalyst element promoting to crystallize the amorphous semiconductor film at an annealing temperature To, wherein a density of projections present at an underlayer film or the substrate in contact with a bottom face of the amorphous semiconductor film has a value specified below or lower;g(T, f (T0))âˆ’2 wherein a relationship specified below is established between the annealing temperature and an annealing time period when the amorphous semiconductor film is formed on the substrate by the same process and the amorphous semiconductor film naturally starts crystallizing;t=f(T) (T; annealing temperature, t; annealing time period) wherein a relationship specified below is established between the annealing temperature and a growth distance in the using the catalyst element promoting to crystallize the amorphous semiconductor film in respect of the amorphous semiconductor film formed on the substrate;X=g(T, t) (x; growth distance).