Patent ID: 11869904
Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method for fabricating an array substrate, comprising:
providing a substrate;
forming an array layer on the substrate; wherein the array layer comprises a thin film transistor and a conductive pad spaced apart in a direction parallel to the substrate;
forming a passivation layer on the array layer, wherein the passivation layer covers the thin film transistor and the conductive pad;
forming a full-surface carbon film on the passivation layer; and
removing the passivation layer and the carbon film corresponding to the conductive pad by a patterning process to obtain the array substrate;
wherein the step of removing the passivation layer and the carbon film corresponding to the conductive pad by the patterning process comprises:
forming a photoresist layer on a surface of the carbon film away from the passivation layer;
patterning the photoresist layer to obtain a patterned photoresist layer with an opening corresponding to the conductive pad;
sequentially removing part of the carbon film and part of the passivation layer corresponding to the opening to expose the conductive pad; wherein the carbon film forms a patterned carbon film covering the thin film transistor, and the patterned carbon film is a light-shielding layer.