ZnO based semiconductor devices and methods of manufacturing the same
First Claim
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1. A display device including a semiconductor device comprising:
- a substrate;
an active layer including a composite represented by Formula 1 below, on the substrate;
source and drain electrodes electrically connected to the active layer;
a gate electrode on the active layer; and
a gate insulating layer between the gate electrode and the active layer;
x(Ga2O3).y(In2O3).z(ZnO)
Formula 1wherein x, y, and z are about 1.25≦
x/z≦
about 1.45, and about 1.45≦
y/z≦
about 1.65 in Formula 1, andwherein, when a drain current is 1E−
10 A, the difference of V (light on) and V (light off) is equal to or less than 5V.
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Abstract
A semiconductor device may include a composite represented by Formula 1 below as an active layer.
x(Ga2O3).y(In2O3).z(ZnO) Formula 1
wherein, about 0.75≦x/z≦about 3.15, and about 0.55≦y/z≦about 1.70.
Switching characteristics of displays and driving characteristics of driving transistors may be improved by adjusting the amounts of a gallium (Ga) oxide and an indium (In) oxide mixed with a zinc (Zn) oxide and improving optical sensitivity.
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Citations
17 Claims
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1. A display device including a semiconductor device comprising:
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a substrate; an active layer including a composite represented by Formula 1 below, on the substrate; source and drain electrodes electrically connected to the active layer; a gate electrode on the active layer; and a gate insulating layer between the gate electrode and the active layer;
x(Ga2O3).y(In2O3).z(ZnO)
Formula 1wherein x, y, and z are about 1.25≦
x/z≦
about 1.45, and about 1.45≦
y/z≦
about 1.65 in Formula 1, andwherein, when a drain current is 1E−
10 A, the difference of V (light on) and V (light off) is equal to or less than 5V. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of manufacturing a display device including a semiconductor device, the method comprising:
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forming an active layer including a composite represented by Formula 1 below, source and drain electrodes, a gate insulating layer and a gate electrode on a substrate,
x(Ga2O3).y(In2O3).z(ZnO)
Formula 1wherein, x, y, and z are about 1.25≦
x/z≦
about 1.45, and about 1.45≦
y/z≦
about 1.65 in Formula 1, andwherein, when a drain current is 1E−
10 A, the difference of V (light on) and V (light off) is equal to or less than 5V. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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Specification