Semiconductor component and semiconductor device
AssigneeKabushiki Kaisha Toshiba
InventorMizuki Ono
Life of this patent
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Abstract
A semiconductor component includes a mixed crystal layer of silicon and germanium having a first main surface, containing a III-group impurity, and having a first face orientation alone represented as a face (11N) by using N satisfying 1.2<N<10 or a face crystallographically equivalent to the face (11N) in the first main surface, a compressive strain being applied to the mixed crystal layer along an in-plane direction, a gate dielectric layer formed on the first main surface. The component further includes a gate electrode formed on the gate dielectric layer, and source/drain regions formed to sandwich the gate electrode in a direction [110] or a crystallographically equivalent direction of the mixed crystal layer and containing a V-group impurity.
Claims20
A semiconductor component comprising:
- a mixed crystal layer of silicon and germanium having a first main surface, containing a III-group impurity, and having a first face orientation alone which is represented as a face (11N) by using N satisfying 1.2<N<10 or which is crystallographically equivalent to the face (11N) in the first main surface, a compressive strain being applied to the mixed crystal layer along an in-plane direction;
- a gate dielectric layer formed on the first main surface;
- a gate electrode formed on the gate dielectric layer;
- and
- source/drain regions formed to sandwich the gate electrode in a direction [110] of the mixed crystal layer or in a direction crystallographically equivalent to the direction [110] and containing a V-group impurity.
A semiconductor device comprising a first semiconductor component and a second semiconductor component, which are insulated from each other,
- the first semiconductor component comprising:
- a first mixed crystal layer of silicon and germanium containing a III-group impurity, provided with a first main surface having with a first face orientation alone which is represented as a face (11N) by using N satisfying 1.2<N<10 or which is crystallographically equivalent to the face (11N) in the first main surface, a compressive strain being applied to the first mixed crystal layer along an in-plane direction of the first main surface;
- a first dielectric layer formed on the first main surface;
- a first gate electrode formed on the first dielectric layer;
- and
- first source/drain regions formed to sandwich the first gate electrode in a direction [110] of the first mixed crystal layer or in a direction crystallographically equivalent the direction [110] and containing a V-group impurity, and
- the second semiconductor component comprising:
- a second mixed crystal layer of silicon and germanium containing a V-group impurity, and provided with a second main surface having a second main orientation of a face (110) or a face crystallographically equivalent to the face (110), a compressive strain being applied to the second mixed crystal layer along an in-plane direction of the second main surface;
- a second dielectric layer formed on the second main surface;
- a second gate electrode formed on the second dielectric layer;
- and
- second source/drain regions formed to sandwich the second gate electrode in a direction [110] of the second mixed crystal layer or in a direction crystallographically equivalent to the direction [110] and containing a III-group impurity.
A semiconductor device comprising a first semiconductor component and a second semiconductor component insulated from each other,
- the first semiconductor component comprising:
- a first mixed crystal layer of silicon and germanium provided with a first main surface having a surface of a first face orientation represented as a face (11N) by using N satisfying 1.2<N<10 or a face crystallographically equivalent to the face (11N), a compressive strain being applied to the first main surface along an in-plane direction;
- a first semiconductor region formed in the first mixed crystal layer and containing a III-group impurity;
- a first dielectric layer formed on the first semiconductor region;
- a first gate electrode formed on the first dielectric layer;
- and
- first source/drain regions formed to sandwich the first gate electrode in a direction [110] of the first mixed crystal layer or in a direction crystallographically equivalent to the direction [110], and containing a V-group impurity, and
- the second semiconductor component comprising:
- a second mixed crystal layer of silicon and germanium having the first face orientation, a compressive strain being applied to the first main surface along an in-plane direction;
- a second semiconductor region formed on the second mixed crystal layer and containing a V-group impurity;
- a second dielectric layer formed on the second semiconductor region;
- a second gate electrode formed on the second dielectric layer;
- and
- second source/drain regions formed to sandwich the second gate electrode in a direction [110] or in a direction crystallographically equivalent to the direction [110] and containing a III-group impurity.
Dependencies are inferred from the claim text.