THIN-FILM TRANSISTOR SUBSTRATE AND METHOD OF MANUFACTURING THE SAME
First Claim
Patent Images
1. A thin-film transistor substrate comprising:
- a metal wiring including copper or a copper alloy on a substrate;
an inorganic layer on an upper surface and side surfaces of the metal wiring to surround the metal wiring, and in direct contact with the metal wiring; and
a planarization layer on the inorganic layer and in direct contact with the inorganic layer.
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Abstract
A thin-film transistor (“TFT”) substrate includes a metal wiring including copper or a copper alloy on a substrate, an inorganic layer on an upper surface and side surfaces of the metal wiring to surround the metal wiring, the inorganic layer in direct contact with the metal wiring, and a planarization layer on the inorganic layer and in direct contact with the inorganic layer.
15 Citations
20 Claims
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1. A thin-film transistor substrate comprising:
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a metal wiring including copper or a copper alloy on a substrate; an inorganic layer on an upper surface and side surfaces of the metal wiring to surround the metal wiring, and in direct contact with the metal wiring; and a planarization layer on the inorganic layer and in direct contact with the inorganic layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of manufacturing a thin-film transistor substrate, the method comprising:
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forming a metal wiring including copper or a copper alloy on a substrate; forming an inorganic layer in direct contact with an upper surface and side surfaces of the metal wiring, to surround the metal wiring; forming an organic layer including an organic material, on the substrate; and planarizing the organic layer by removing a predetermined portion of the organic layer, such that a maximum distance between a surface of the substrate and a top surface of the organic layer is smaller than or equal to a maximum distance between the surface of the substrate and a top surface of the inorganic layer. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A thin-film transistor substrate comprising:
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a first metal wiring including copper or a copper alloy on a substrate, wherein the first metal wiring has an upper surface at a maximum thickness of the first metal wiring; a first inorganic layer contacting the upper surface and contacting side surfaces of the first metal wiring; and a first organic layer contacting the first inorganic layer, wherein an upper surface of the first organic layer is closer to the substrate than an upper surface of the first inorganic layer overlapping the upper surface of the first wiring. - View Dependent Claims (19, 20)
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Specification