Thin film transistor with three dimensional multichannel structure
First Claim
1. A thin film transistor gate structure comprising:
- (a) a substrate;
(b) a plurality of spaced apart semiconductive strips formed substantially parallel to one another and to said substrate, each said strip having a channel portion;
(c) a gate insulating layer surrounding a cross-sectional periphery of each said channel portion of each said semiconductive strip; and
(d) a gate electrode surrounding said gate insulating layer, a portion of said gate electrode being disposed on said substrate.
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Abstract
A thin film transistor gate structure with a three-dimensional multichannel structure is disclosed.
The thin film transistor gate structure according to the present invention comprises source/drain electrodes formed so as to be spaced from and opposite to each other on a substrate; semiconductive layers, comprised of a plurality of sub-semiconductive layers, each formed in a row, each end of the sub-semiconductive layers being in ohmic-contact with the source/drain electrodes; gate insulating layers surrounding each of the semiconductive layers; and gate electrodes surrounding each of the gate insulating layers.
Accordingly, the whole outerlayers of each sub-semiconductive layer surrounded by the gate electrodes serve as channel regions. As a result, the effective channel area increases, thereby improving the channel conductance and current driving ability.
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Citations
10 Claims
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1. A thin film transistor gate structure comprising:
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(a) a substrate; (b) a plurality of spaced apart semiconductive strips formed substantially parallel to one another and to said substrate, each said strip having a channel portion; (c) a gate insulating layer surrounding a cross-sectional periphery of each said channel portion of each said semiconductive strip; and (d) a gate electrode surrounding said gate insulating layer, a portion of said gate electrode being disposed on said substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification