Thin-film transistor and method of manufacturing the same
First Claim
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1. A thin-film transistor comprising:
- a gate;
a gate insulation layer;
a channel layer including a first oxide semiconductor layer and a second oxide semiconductor layer; and
a source and drain on opposite sides of the channel layer,wherein the first oxide semiconductor layer has larger crystal grains than the second oxide semiconductor layer.
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Abstract
Example embodiments relate to thin-film transistors (TFT) and methods for fabricating the same. A thin-film transistor according to example embodiments may include a gate, a gate insulation layer, a channel layer including a first oxide semiconductor layer and a second oxide semiconductor layer, and a source and drain on opposite sides of the channel layer. The first oxide semiconductor layer may have relatively large crystal grains compared to the second oxide semiconductor layer.
32 Citations
17 Claims
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1. A thin-film transistor comprising:
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a gate; a gate insulation layer; a channel layer including a first oxide semiconductor layer and a second oxide semiconductor layer; and a source and drain on opposite sides of the channel layer, wherein the first oxide semiconductor layer has larger crystal grains than the second oxide semiconductor layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of fabricating a thin-film transistor, comprising:
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forming a gate; forming a first oxide semiconductor layer of a crystalline material; forming a second oxide semiconductor layer having smaller crystal grains than the first oxide semiconductor layer, the first and second oxide semiconductor layers constituting a channel layer; and forming a source and drain on opposite sides of the channel layer. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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Specification