Transistor device and method for manufacturing the same
First Claim
1. A transistor device comprising a first vertical transistor structure, wherein the first vertical transistor structure comprises:
- a substrate;
a first dielectric layer disposed in a first trench of the substrate;
a first gate disposed in the first dielectric layer, wherein the first gate defines, at both sides thereof, a first channel region and a second channel region in the substrate, wherein the first gate has a cylindrical structure, and the first channel region and the second channel region are respectively a curved channel disposed at both sides of the cylindrical structure;
a first doped region disposed in the substrate, wherein the first doped region is located below the first channel region;
a second doped region disposed in the substrate, wherein the second doped region is located above the first channel region;
a third doped region disposed in the substrate, wherein the third doped region is located below the second channel region; and
a fourth doped region disposed in the substrate, wherein the fourth doped region is located above the second channel region.
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Abstract
Provided is a transistor device including at least a vertical transistor structure. The vertical transistor structure includes a substrate, a dielectric layer, a gate, a first doped region, a second doped region, a third doped region, and a fourth doped region. The dielectric layer is disposed in a trench of the substrate. The gate is disposed in the dielectric layer. The gate defines, at both sides thereof, a first channel region and a second channel region in the substrate. The first doped region and the third doped region are disposed in the substrate and located below the first channel region and the second channel region, respectively. The second doped region and the fourth doped region are disposed in the substrate and located above the first channel region and the second channel region, respectively.
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Citations
6 Claims
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1. A transistor device comprising a first vertical transistor structure, wherein the first vertical transistor structure comprises:
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a substrate; a first dielectric layer disposed in a first trench of the substrate; a first gate disposed in the first dielectric layer, wherein the first gate defines, at both sides thereof, a first channel region and a second channel region in the substrate, wherein the first gate has a cylindrical structure, and the first channel region and the second channel region are respectively a curved channel disposed at both sides of the cylindrical structure; a first doped region disposed in the substrate, wherein the first doped region is located below the first channel region; a second doped region disposed in the substrate, wherein the second doped region is located above the first channel region; a third doped region disposed in the substrate, wherein the third doped region is located below the second channel region; and a fourth doped region disposed in the substrate, wherein the fourth doped region is located above the second channel region. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification