Patent ID: 9082701
Filing Date: 2015-07-14
Classification: H01L

Abstract:
1. A method of forming a thin film transistor array panel, the method comprising: providing a first insulating layer on a substrate; providing an amorphous carbon layer on the first insulating layer; providing a second insulating layer on the amorphous carbon layer; providing an opening in the amorphous carbon layer, by patterning the second insulating layer and the amorphous carbon layer; and providing a trench in the first insulating layer, by etching the first insulating layer, the etching the first insulating layer using the amorphous carbon layer comprising the opening as a mask, wherein in the providing the amorphous carbon layer, the amorphous carbon layer is formed by using a gas comprising carbon and hydrogen, and an assistant gas comprising at least one of helium or argon, and the gas comprising carbon and hydrogen comprises at least one of C