Active solid-state devices (e.g. – transistors – solid-state diode – Organic semiconductor material
Reexamination Certificate
2011-04-19
2011-04-19
Such, Matthew W (Department: 2891)
Active solid-state devices (e.g., transistors, solid-state diode
Organic semiconductor material
C257SE51006, C438S099000
Reexamination Certificate
active
07928429
ABSTRACT:
An organic thin film transistor (TFT), a method of making and a display including the organic TFT. In the TFT, the disconnection of a channel region does not occur because a step difference between a substrate and source and drain electrodes is lessened or eliminated by forming the source and drain electrodes in grooves in a buffer film. The method of manufacturing the organic TFT includes forming a buffer film on a substrate, forming concave units separated by a distance from each other in the buffer film by etching the buffer film, forming an electrode layer on the buffer film, forming source and drain electrodes within the concave units by etching the electrode layer using a photolithography process, forming a semiconductor layer on the source and drain electrodes and on the buffer film, forming a gate insulating film on the semiconductor layer and forming a gate electrode on the gate insulating film.
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Koo Jae-Bon
Lee Hun-Jung
Suh Min-chul
Bushnell , Esq. Robert E.
Samsung Mobile Display Co., Ltd.
Such Matthew W
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