Thin Film Transistor and Method of Manufacturing the Same
First Claim
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1. A thin film transistor (TFT) comprising:
- a gate electrode;
a source electrode and a drain electrode spaced from the gate electrode in a vertical direction and spaced from each other in a horizontal direction;
a gate insulation layer between the gate electrode and the source and drain electrodes; and
an active layer between the gate insulation layer and the source and drain electrodes,wherein the active layer comprises a first conductive oxide layer having a first conductivity and a second conductive oxide layer having a second conductivity different from said first conductivity, said first and second conductivities corresponding to an impurity in the respective conductive oxide layer.
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Abstract
Provided are a Thin Film Transistor (TFT) and a method of manufacturing the same. The TFT includes a gate electrode; a source electrode and a drain electrode spaced from the gate electrode in a vertical direction and spaced from each other in a horizontal direction; a gate insulation layer disposed between the gate electrode and the source and drain electrodes; and an active layer disposed between the gate insulation layer and the source and drain electrodes. The active layer is formed of a conductive oxide layer and comprises at least two layers having different conductivities according to an impurity doped into the conductive oxide layer.
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Citations
20 Claims
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1. A thin film transistor (TFT) comprising:
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a gate electrode; a source electrode and a drain electrode spaced from the gate electrode in a vertical direction and spaced from each other in a horizontal direction; a gate insulation layer between the gate electrode and the source and drain electrodes; and an active layer between the gate insulation layer and the source and drain electrodes, wherein the active layer comprises a first conductive oxide layer having a first conductivity and a second conductive oxide layer having a second conductivity different from said first conductivity, said first and second conductivities corresponding to an impurity in the respective conductive oxide layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of manufacturing a thin film transistor (TFT), comprising:
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forming a gate electrode and source and drain electrodes on a substrate, the gate electrode spaced from the source and drain electrodes in a vertical direction; forming a gate insulation layer on one of (i) the gate electrode and (ii) the source and drain electrodes; and forming an active layer on one of (i) the gate insulation layer and (ii) the source and drain electrodes, wherein the active layer comprises a first conductive oxide layer having a first conductivity and a second conductive oxide layer having a second conductivity different from said first conductivity, said first and second conductivities corresponding to an impurity in the respective conductive oxide layer. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification