Organic thin film transistor and method of manufacturing the same
First Claim
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1. An organic thin film transistor comprising:
- a gate electrode;
a gate insulating film that is formed on the gate electrode;
a source electrode that is formed on the gate insulating film and that contacts the gate insulating film;
a drain electrode that is formed on the gate insulating film and that contacts the gate insulating film, wherein each of the source and drain electrodes includes inner and outer ends;
a threshold voltage controlling film that is formed on the gate insulating film, that contacts the gate insulating film, and that is located entirely between the inner ends of the source electrode and the drain electrode; and
an organic semiconductor film that is formed on the threshold voltage controlling film and that is located between the source electrode and the drain electrode.
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Abstract
An organic thin film transistor and a method of manufacturing the same are provided. The transistor has a threshold voltage that can be easily controlled without changing the material forming an organic semiconductor film. The organic thin film transistor includes a gate electrode, a gate insulating film, a source electrode, a drain electrode, and an organic semiconductor film. A threshold voltage controlling film is provided between the gate insulating film and the organic semiconductor film.
16 Citations
15 Claims
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1. An organic thin film transistor comprising:
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a gate electrode; a gate insulating film that is formed on the gate electrode; a source electrode that is formed on the gate insulating film and that contacts the gate insulating film; a drain electrode that is formed on the gate insulating film and that contacts the gate insulating film, wherein each of the source and drain electrodes includes inner and outer ends; a threshold voltage controlling film that is formed on the gate insulating film, that contacts the gate insulating film, and that is located entirely between the inner ends of the source electrode and the drain electrode; and an organic semiconductor film that is formed on the threshold voltage controlling film and that is located between the source electrode and the drain electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of manufacturing an organic thin film transistor comprising:
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forming a gate electrode; forming a gate insulating film on the gate electrode; forming a source electrode on the gate insulating film and in contact with the gate insulating film; forming a drain electrode on the gate insulating film and in contact with the gate insulating film, wherein each of the source and drain electrodes includes inner and outer ends; forming a threshold voltage controlling film on the gate insulating film, in contact with the gate insulating film, and located entirely between the inner ends of the source electrode and the drain electrode; and forming an organic semiconductor film on the threshold voltage controlling film and located between the source electrode and the drain electrode. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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Specification