Patent ID: 6472297
Filing Date: 2002-10-29
Classification: G02F,H01L

Abstract:
A method for producing a TFT array substrate for a liquid crystal display device comprising a production process of forming a poly-Si TFT having a channel area in a polysilicon semiconductor layer located on a substrate, the production process comprising:forming a polysilicon layer by using an apparatus comprising a vaporized particle-generating portion for generating vaporized silicon particles, a plasma atmosphere region for exciting the vaporized silicon particles generated in the vaporized particle-generating portion, a substrate-holding portion disposed outside the plasma atmosphere region and opposed to the plasma atmosphere region so that the vaporized particle-generating portion is between the plasma atmosphere region and the substrate-holding portion, and a voltage applying means for applying an electric field between the plasma atmosphere region and the substrate-holding portion so that, using the electric field, silicon particles excited and ionized in the plasma atmosphere region are extracted and applied onto a surface of the substrate, locating a substrate on the substrate holding portion, and subsequently depositing silicon particles excited in the plasma atmosphere region onto a substrate so that the polysilicon layer is formed at the stage when the silicon particles are deposited on the substrate surface.