SEMICONDUCTOR STRUCTURE AND METHOD OF MANUFACTURE
First Claim
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1. A method of manufacturing a semiconductor device, the method comprising:
- forming at least one recess in a semiconductor layer;
forming a unidirectional device in and over a first region of the semiconductor layer comprising the at least one recess; and
forming a bidirectional device in and over a second region of the semiconductor layer.
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Abstract
In various embodiments, semiconductor structures and methods to manufacture these structures are disclosed. In one embodiment, a method includes forming a portion of the unidirectional transistor and a portion of a bidirectional transistor in or over a semiconductor material simultaneously. Other embodiments are described and claimed.
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Citations
12 Claims
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1. A method of manufacturing a semiconductor device, the method comprising:
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forming at least one recess in a semiconductor layer; forming a unidirectional device in and over a first region of the semiconductor layer comprising the at least one recess; and forming a bidirectional device in and over a second region of the semiconductor layer. - View Dependent Claims (2, 3, 4)
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5. A semiconductor device, comprising:
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a semiconductor layer having at least one recess formed therein; a unidirectional device disposed in and over a first region of the semiconductor layer comprising the at least one recess; and a bidirectional device disposed in and over a second region of the semiconductor layer. - View Dependent Claims (6, 7, 8)
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9. A method of forming a semiconductor structure, the method comprising:
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forming a first dielectric structure extending from a first surface of a semiconductor substrate toward a second surface of the semiconductor substrate; forming a second dielectric structure extending form the second surface of the semiconductor structure and contacting the first dielectric structure; and forming a portion of an active device in the semiconductor substrate and adjacent to the first dielectric structure. - View Dependent Claims (10)
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11. A semiconductor structure, comprising:
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a first dielectric structure extending from a first surface of a semiconductor substrate toward a second surface of the semiconductor substrate; a second dielectric structure extending form the second surface of the semiconductor structure and contacting the first dielectric structure; and an active device, wherein at least a portion of the active device is disposed in the semiconductor substrate and adjacent to the first dielectric structure.
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12. The semiconductor structure of claim 13, wherein:
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the first dielectric structure comprises; a first portion of the semiconductor substrate having a first trench formed therein extending from the first surface into the semiconductor substrate; and silicon dioxide disposed along a sidewall of the first trench via thermal oxidation; and wherein the second dielectric structure comprises; a second portion of the semiconductor substrate having a second trench formed therein extending from the second surface of the semiconductor substrate to the silicon dioxide of the first dielectric structure; and an oxide deposited in the second trench at least partially contacting the silicon dioxide.
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Specification