A liquid crystal display device and a method of fabrication thereof that simplify a fabrication process of the LCD and improve contact resistance properties. A liquid crystal display device according to an embodiment of the present invention includes a substrate; a TFT (thin film transis
An etching solution for a multiple layer of copper and molybdenum includes: about 5% to about 30% by weight of a hydrogen peroxide; about 0.5% to about 5% by weight of an organic acid; about 0.2% to about 5% by weight of a phosphate; about 0.2% to about 5% by weight of a first additi