Patent ID: 7863113

Claim:
A method for producing a transistor for active matrix display comprising the steps of: forming an active material and electrode on a substrate, said active material being formed using a vapor deposition method; forming an insulator on top of said active material and electrode; forming a plasma treated interface on top of said insulator; and forming a microcrystalline silicone film on top of said treated interface at a temperature between 100 and 400Â° C. using at least a deposition chemical element and a crystallisation chemical element, wherein, said microcrystalline silicon film comprises a crystalline fraction of above 80% and said microcrystalline silicon film comprises grains of a size between 10 nm and 400 nm, said plasma treated interface is selected from the group consisting of a SiN x layer, a SiN x O y layer, a SiO 2 layer and glass, said plasma treated interface is formed using a gas, said gas selected from the group consisting of N 2 , 0 2 , N 2 0 and NH 3 , and the transistor has a linear mobility greater than or equal to 1.5 cm 2 V âˆ’1 s âˆ’1 .