Patent ID: 11955563
Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 3:
4. A manufacturing method of the thin film transistor, comprising the steps:
providing a substrate;
forming an active region on the substrate;
forming a channel region arranged in a center of the active region;
forming source and drain regions arranged on two sides of the channel region;
forming a gate dielectric layer arranged above the channel region;
forming a reflective coating above the gate dielectric layer;
forming a gate metal arranged above the reflective coating;
forming an interlayer dielectric layer that covers the gate metal, the active region, and the substrate; and
forming a source/drain metal layer passes through the interlayer dielectric layer and electrically connecting with a surface of the source and drain regions;
wherein the reflective coating and the gate metal are different layers;
wherein the reflective coating is a metal with a mirror surface structure.