SEMICONDUCTOR DEVICE
First Claim
1. A semiconductor device, comprising:
- a semiconductor substrate;
a gate electrode over the semiconductor substrate;
a channel region between the semiconductor substrate and the gate electrode, wherein the channel region includes a pair of first sides opposing to each other in a channel length direction, and a pair of second sides opposing to each other in a channel width direction;
a pair of source/drain regions adjacent to the pair of first sides of the channel region in the channel length direction; and
a threshold voltage adjusting region covering the pair of second sides of the channel region in the channel width direction, and exposing the pair of first sides of the channel region in the channel length direction.
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Abstract
A semiconductor device includes a semiconductor substrate, a gate electrode, a channel region, a pair of source/drain regions and a threshold voltage adjusting region. The gate electrode is over the semiconductor substrate. The channel region is between the semiconductor substrate and the gate electrode. The channel region includes a pair of first sides opposing to each other in a channel length direction, and a pair of second sides opposing to each other in a channel width direction. The source/drain regions are adjacent to the pair of first sides of the channel region in the channel length direction. The threshold voltage adjusting region covers the pair of second sides of the channel region in the channel width direction, and exposing the pair of first sides of the channel region in the channel length direction.
1 Citation
20 Claims
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1. A semiconductor device, comprising:
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a semiconductor substrate; a gate electrode over the semiconductor substrate; a channel region between the semiconductor substrate and the gate electrode, wherein the channel region includes a pair of first sides opposing to each other in a channel length direction, and a pair of second sides opposing to each other in a channel width direction; a pair of source/drain regions adjacent to the pair of first sides of the channel region in the channel length direction; and a threshold voltage adjusting region covering the pair of second sides of the channel region in the channel width direction, and exposing the pair of first sides of the channel region in the channel length direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A semiconductor device, comprising:
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a semiconductor substrate; an isolation structure in the semiconductor substrate; a gate electrode over the semiconductor substrate; a channel region between the semiconductor substrate and the gate electrode; a pair of source/drain regions adjacent to two opposing sides of the channel region in a channel length direction; and a threshold voltage adjusting region covering a sidewall and a bottom of the isolation structure. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A semiconductor device, comprising:
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a semiconductor substrate; a gate electrode over the semiconductor substrate; a channel region between the semiconductor substrate and the gate electrode; a pair of source/drain regions adjacent to two opposing sides of the channel region in a channel length direction; a pair of isolation structures adjacent to two opposing sides of the channel region in a channel width direction, and extending along the channel length direction; and a pair of threshold voltage adjusting regions between the channel region and the pair of isolation structures respectively, wherein the pair of threshold voltage adjusting regions and the channel region have the same doping type, and the pair of threshold voltage adjusting regions extend along the channel length direction. - View Dependent Claims (17, 18, 19, 20)
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Specification