Patent ID: 11871617
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A manufacturing method of a light emitting display device, the manufacturing method comprising:
forming amorphous silicon on a substrate;
cleaning the amorphous silicon;
crystallizing the amorphous silicon by irradiating the amorphous silicon with a laser; and
plasma-treating a surface of a crystallized semiconductor with hydrogen;
forming a semiconductor layer by etching the crystallized semiconductor;
forming a first gate insulating film covering the semiconductor layer; and
forming a first gate conductor on the first gate insulating film,
wherein the first gate insulating film is defined by one of a single layer of a silicon oxide film and a double layer of a silicon nitride film and the silicon oxide film,
wherein the first gate insulating film has a thickness value in a range of 800 Å to 1200 Å,
wherein the thickness value of the first gate insulating film is a thickness of the single layer of the silicon oxide film or a converted thickness of the double layer of the silicon nitride film and the silicon oxide film to the thickness of the single layer of the silicon oxide film, and
wherein a length of a channel of a transistor defined by a portion of the semiconductor layer is in a range of 1 μm to 2.5 μm.