Patent ID: 7998843

Claim:
A method of forming an amorphous silicon layer, the method comprising: preparing a substrate; and forming an amorphous silicon layer in which a ratio of Si—H bonding to Si—H 2 bonding has a value equal to or less than 4 to 1, the amorphous silicon layer being formed on the substrate using chemical vapor deposition equipment, wherein the chemical vapor deposition equipment comprises: a chamber; first and second electrodes in the chamber, the first and second electrodes facing each other; a gas supply to supply SiH 4 and H 2 to the chamber; and a power supply to apply power to the first and second electrodes, and wherein a pressure of the chamber is about 1.6 Torr to about 3.5 Torr, a percentage of SiH 4 to H 2 to be supplied to the gas supply unit is about 1% by volume to about 4% by volume, the power is about 150 W to about 500 W, a distance between the first and second electrodes is about 1.3 cm to about 2.5 cm, and a temperature of the chamber is about 100° C. to about 180° C.