SEMICONDUCTOR DEVICE AND SEMICONDUCTOR MANUFACTURING METHOD
First Claim
Patent Images
1. A semiconductor device comprising:
- a first SiC layer having a first polar face;
an intermediate layer formed by being deposited on the first SiC layer and comprised of an Si layer or a C layer; and
a second SiC layer formed by being deposited on the intermediate layer and having a second polar face opposite to the first polar face.
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Abstract
One atomic layer of Si atoms 3 is grown on an Si-terminated SiC surface 1a having an Si polar face, and one atomic layer of C atoms 5 is further grown thereon. Then, Si and C are supplied to form an SiC layer. The surface of the SiC layer thus grown is a C polar face opposite to the Si polar face. That is, according to the above-described step, it is possible to grow an SiC polarity-reversed layer 1x having a C polarity on an SiC layer 1 having an Si polarity, with one atomic layer of an Si intermediate layer b interposed therebetween. Consequently, it is possible to provide a technique to reverse the polarity of SiC on the surface.
27 Citations
42 Claims
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1. A semiconductor device comprising:
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a first SiC layer having a first polar face; an intermediate layer formed by being deposited on the first SiC layer and comprised of an Si layer or a C layer; and a second SiC layer formed by being deposited on the intermediate layer and having a second polar face opposite to the first polar face. - View Dependent Claims (4, 5, 6, 9, 10, 11, 12, 13)
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2. A semiconductor device comprising:
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a first SiC layer having a first polar face; an intermediate layer formed by being deposited on the first SiC layer and comprised of an Si layer or a C layer; and a first group III nitride layer or group II oxide layer formed by being deposited on the intermediate layer and having a second polar face opposite to the first polar face. - View Dependent Claims (14, 15, 25, 27, 29, 31, 33, 35, 37, 39)
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3. A semiconductor device comprising:
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a first SiC layer having a first polar face; an intermediate layer formed by being deposited on the first SiC layer and comprised of an Si layer or a C layer; a second SiC layer formed by being deposited on the intermediate layer and having a second polar face opposite to the first polar face; and a first group III nitride layer or group II oxide layer deposited on the second SiC layer and having a polar face identical to the second polar face. - View Dependent Claims (26, 28, 30, 32, 34, 36, 38, 40, 41, 42)
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7-8. -8. (canceled)
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16. A waveguide-type quasi-phase matched wavelength conversion element comprising:
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a first optical waveguide structure formed on a first SiC layer having a first polar face and comprised of a first group III nitride or a group II oxide having a polar face identical to the first polar face; and a second optical waveguide structure comprised of a second group III nitride or group II oxide, formed by being deposited, through an intermediate layer formed by being deposited on the first SiC layer and comprised of an Si layer or a C layer, on the intermediate layer and having a polar face opposite to the first polar face; wherein the first optical waveguide structure and the second optical waveguide structure are spatially arranged and the optical waveguides of both the first and second optical waveguide structures are connected to each other.
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17. An integrated circuit comprising:
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a first semiconductor device formed on a first SiC layer having a first polar face and comprised of SiC, a group III nitride or a group II oxide having a polar face identical to the first polar face; and a second semiconductor device comprised of SiC, a group III nitride or a group II oxide, formed by being deposited, through an intermediate layer formed by being deposited on the first SiC layer and comprised of an Si layer or a C layer, on the intermediate layer and having a polar face opposite to the first polar face. - View Dependent Claims (19, 20, 21)
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18. A semiconductor device comprising:
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a first SiC layer having a first polar face; an intermediate layer formed by being deposited on the first SiC layer and comprised of an SixGe1−
x layer; anda second SiC layer formed by being deposited on the intermediate layer and having a second polar face opposite to the first polar face.
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22. A semiconductor substrate comprising:
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a first SiC layer having a first polar face; an intermediate layer formed by being deposited on the first SiC layer and comprised of an Si layer or a C layer; and a second SiC layer formed by being deposited on the intermediate layer and having a second polar face opposite to the first polar face.
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23. A semiconductor substrate comprising:
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a first SiC layer having a first polar face; an intermediate layer formed by being deposited on the first SiC layer and comprised of an Si layer or a C layer; and a first group III nitride layer or group II oxide layer formed by being deposited on the intermediate layer and having a second polar face opposite to the first polar face.
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24. A semiconductor substrate comprising:
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a first SiC layer having a first polar face; an intermediate layer formed by being deposited on the first SiC layer and comprised of an Si layer or a C layer; a second SiC layer formed by being deposited on the intermediate layer and having a second polar face opposite to the first polar face; and a first group III nitride layer or group II oxide layer formed by being deposited on the second SiC layer and having a polar face identical to the second polar face.
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Specification