Pre-patterned substrate for organic thin film transistor structures and circuits and related method for making same
First Claim
1. A substrate for carrying an organic thin film transistor (OTFT) structure, comprising:
- said substrate having a thickness and a surface of arbitrary size and shape, and at least one groove in said substrate surface having a predefined pattern for carrying the OTFT structure.
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Abstract
Grooves in a desired circuit configuration are formed in the surface of a substrate to pre-pattern the area to receive material forming an organic thin film transistor (OTFT) structure and interconnecting conductive paths. The OTFT material is deposited in the pre-patterned area using printing techniques such as ink jet printing. In one embodiment, the grooves are formed in the surface substrate during the injection molding process of the substrate. Inter-exchangeable device covers carry different substrates to provide different functionalities of an electronic device with which the covers are used.
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Citations
20 Claims
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1. A substrate for carrying an organic thin film transistor (OTFT) structure, comprising:
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said substrate having a thickness and a surface of arbitrary size and shape, and at least one groove in said substrate surface having a predefined pattern for carrying the OTFT structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for pre-patterning an area on a substrate to carry an organic thin film transistor (OTFT) structure, comprising the steps of:
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defining grooves in a desired pattern in the surface of the substrate; and
depositing organic and inorganic material defining the source, drain and gate electrodes and the insulating layer and the semiconductor layer in the grooves to form the OTFT structure. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification