摘要:
The roughness and structural height of printed metal lines is used to pin a fluid. This fluid deposits a top contact material which is connected to the bottom printed contacts through pinholes in the hydrophobic polymer layer. This results in a sandwich-like contact structure achieved in a self-aligned deposition process and having improved source-drain contact for all-additive printed circuits. In one form, the present technique is used for thin film transistor applications, but it may be applied to electrodes in general.
摘要:
The roughness and structural height of printed metal lines is used to pin a fluid. This fluid deposits a top contact material which is connected to the bottom printed contacts through pinholes in the hydrophobic polymer layer. This results in a sandwich-like contact structure achieved in a self-aligned deposition process and having improved source-drain contact for all-additive printed circuits. In one form, the present technique is used for thin film transistor applications, but it may be applied to electrodes in general.
摘要:
The roughness and structural height of printed metal lines is used to pin a fluid. This fluid deposits a top contact material which is connected to the bottom printed contacts through pinholes in the hydrophobic polymer layer. This results in a sandwich-like contact structure achieved in a self-aligned deposition process and having improved source-drain contact for all-additive printed circuits. In one form, the present technique is used for thin film transistor applications, but it may be applied to electrodes in general.
摘要:
The roughness and structural height of printed metal lines is used to pin a fluid. This fluid deposits a top contact material which is connected to the bottom printed contacts through pinholes in the hydrophobic polymer layer. This results in a sandwich-like contact structure achieved in a self-aligned deposition process and having improved source-drain contact for all-additive printed circuits. In one form, the present technique is used for thin film transistor applications, but it may be applied to electrodes in general.
摘要:
An embodiment is a method and apparatus to treat surface of polymer for printing. Surface of a polymer having a surface energy modified for a time period to control a feature characteristic and/or provide a hysteresis behavior. A material is printed on the surface to form a circuit pattern having at least one of the controlled feature characteristic and the hysteresis behavior.
摘要:
A first patterned contact layer, for example a gate electrode, is formed over an insulative substrate. Insulating and functional layers are formed at least over the first patterned contact layer. A second patterned contact layer, for example source/drain electrodes, is formed over the functional layer. Insulative material is then selectively deposited over at least a portion of the second patterned contact layer to form first and second wall structures such that at least a portion of the second patterned contact layer is exposed, the first and second wall structures defining a well therebetween. Electrically conductive or semiconductive material is deposited within the well, for example by jet-printing, such that the first and second wall structures confine the conductive or semiconductive material and prevent spreading and electrical shorting to adjacent devices. The conductive or semiconductive material is in electrical contact with the exposed portion of the second patterned contact layer to form, e.g., an operative transistor.
摘要:
A method and structures to achieve improved TFTs and high fill-factor pixel circuits are provided. This system relies on the fact that jet-printed lines have print accuracy, which means the location and the definition of the printed lines and dots is high. The edge of a printed line is well defined if the printing conditions are optimized. This technique utilizes the accurate definition and placement of the edges of printed lines of conductors and insulators to define small features and improved structures.
摘要:
A first patterned contact layer, for example a gate electrode, is formed over an insulative substrate. Insulating and functional layers are formed at least over the first patterned contact layer. A second patterned contact layer, for example source/drain electrodes, is formed over the functional layer. Insulative material is then selectively deposited over at least a portion of the second patterned contact layer to form first and second wall structures such that at least a portion of the second patterned contact layer is exposed, the first and second wall structures defining a well therebetween. Electrically conductive or semiconductive material is deposited within the well, for example by jet-printing, such that the first and second wall structures confine the conductive or semiconductive material and prevent spreading and electrical shorting to adjacent devices. The conductive or semiconductive material is in electrical contact with the exposed portion of the second patterned contact layer to form, e.g., an operative transistor.
摘要:
A thin film transistor (TFT) structure is implemented. This embodiment is much less sensitive than conventional TFTs to alignment errors and substrate distortion. In such a configuration, there is no need to define gate features, so the layout is simplified. Moreover, the gate layer may be patterned by several inexpensive printing or non-printing methods.
摘要:
A process for fabricating fine features such as small gate electrodes on a transistor. The process involves the jet-printing of a mask and the plating of a metal to fabricate sub-pixel and standard pixel size features in one layer. Printing creates a small sub-pixel size gap mask for plating a fine feature. A second printed mask may be used to protect the newly formed gate and etch standard pixel size lines connecting the small gates.