Thin film transistor and method of forming the same
First Claim
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1. A thin film transistor, comprising:
- a channel layer including an oxide semiconductor material;
a source electrode and a drain electrode facing each other on the channel layer;
a protective layer under the source electrode and the drain electrode and covering the channel layer;
a gate electrode configured to apply an electric field to the channel layer, wherein the gate electrode is above the channel layer; and
a gate insulating layer interposed between the gate electrode and the channel layer.
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Abstract
A thin film transistor (TFT) may include a channel layer, a source electrode, a drain electrode, a protective layer, a gate electrode, and/or a gate insulating layer. The channel layer may include an oxide semiconductor material. The source electrode and the drain electrode may face each other on the channel layer. The protective layer may be under the source electrode and the drain electrode and/or may cover the channel layer. The gate electrode may be configured to apply an electric field to the channel layer. The gate insulating layer may be interposed between the gate electrode and the channel layer.
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Citations
36 Claims
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1. A thin film transistor, comprising:
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a channel layer including an oxide semiconductor material; a source electrode and a drain electrode facing each other on the channel layer; a protective layer under the source electrode and the drain electrode and covering the channel layer; a gate electrode configured to apply an electric field to the channel layer, wherein the gate electrode is above the channel layer; and a gate insulating layer interposed between the gate electrode and the channel layer. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of manufacturing a thin film transistor comprising:
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forming a channel layer including an oxide semiconductor material and a protective layer covering the channel layer; forming a source electrode and a drain electrode facing each other and contacting two regions of the channel layer; forming a gate insulating layer covering the protective layer, the source electrode, and the drain electrode; and forming a gate electrode on the gate insulating layer above the channel layer. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A method of manufacturing a thin film transistor, comprising:
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forming a gate electrode; forming a gate insulating layer covering the gate electrode; forming a channel layer including an oxide semiconductor material on the gate insulating layer above the gate electrode and a protective layer covering the channel layer; and forming a source electrode and a drain electrode facing each other and contacting two regions of the channel layer, wherein the forming of the channel layer and the protective layer includes depositing an oxide semiconductor material film on the gate insulating layer, forming the channel layer by patterning the oxide semiconductor material film, treating a surface of the channel layer using oxygen plasma, depositing a protective material film on the gate insulating layer and the surface-treated channel layer, and forming the protective layer by patterning the protective material film. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31)
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32. A method of manufacturing a thin film transistor, comprising:
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forming a gate electrode; forming a gate insulating layer covering the gate electrode; forming a channel layer including an oxide semiconductor material on the gate insulating layer above the gate electrode and a protective layer covering the channel layer; and forming a source electrode and a drain electrode facing each other and contacting two regions of the channel layer, wherein the forming of the channel layer and the protective layer includes depositing an oxide semiconductor material film on the gate insulating layer, treating a surface of the oxide semiconductor material film using oxygen plasma, depositing a protective material film on the surface-treated oxide semiconductor material film, and patterning the oxide semiconductor material film and the protective material film. - View Dependent Claims (33, 34, 35, 36)
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Specification