Patent ID: 8338237

Claim:
A method for forming one or more thin film transistors comprising: depositing a first layer of amorphous silicon thin film on a substrate; forming a second layer of thin film on the first layer of amorphous silicon thin film; patterning the second layer of thin film so that the first layer of amorphous silicon thin film is exposed at selected locations of the first layer to expose crystalline nucleation sites and nickel supplementary sites of the first layer; depositing a thin layer of a nickel containing compound on the exposed selected locations on the first amorphous silicon thin film; removing the second layer of thin film; annealing at temperature sufficient to convert the first layer of amorphous silicon thin film into a polycrystalline silicon thin film; patterning the polycrystalline silicon thin film into an array of active channels; providing source, drain, and gate connections to the active channels; and providing interconnections to the source, drain, and gate connections to form one or more thin film transistors.