薄膜晶体管、显示装置、电子设备以及制造薄膜晶体管的方法

By controlling the carbon residue on the channel surface of the thin-film transistor and employing UV ozone treatment and heat treatment, the problem of negative threshold voltage shift in InSnZnO thin-film transistors under negative bias temperature stress was solved, resulting in more stable thin-film transistor performance.

CN116724402BActive Publication Date: 2026-07-17THE JAPAN SCI & TECH AGENCY

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
THE JAPAN SCI & TECH AGENCY
Filing Date
2022-02-18
Publication Date
2026-07-17

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Abstract

在一个实施方式中,薄膜晶体管为形成在基板上的薄膜晶体管,包括:由至少含铟(In)的金属氧化物半导体层的至少一部分形成的沟道、栅电极、设置在所述沟道和所述栅电极之间的栅极绝缘层、以及连接到所述金属氧化物半导体层的源电极和漏电极。例如,通过使从所述沟道的表面到深度5nm的范围内的碳原子的平均浓度为1.5×1021cm‑3以下,能够有效地抑制由电压应力引起的阈值移位。
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