Multilayer device
First Claim
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1. A device, comprising:
- a substrate having a trench extending between a first end and a second end of the trench along a first surface of the substrate;
a first semiconductor layer disposed on the first surface of the substrate and extending between the first end and the second end of the trench, the first semiconductor layer comprising a given surface and another surface;
a dielectric layer between the given surface of the first semiconductor layer and the first surface of the substrate, wherein at least one sidewall at the first and second ends of the trench is substantially perpendicular to the dielectric layer that is covering the trench; and
an active region disposed on the other surface of the first semiconductor layer overlying the trench, wherein at least a portion of the active region resides substantially above a region defined by the trench.
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Abstract
A multilayer device includes a substrate having a trench extending along a first surface of the substrate. A first layer disposed on the first surface of the substrate, the first layer comprising a given surface and another surface. A dielectric layer is formed between the given surface of the first layer and the first surface of the substrate. An active region disposed on the other surface of the first layer overlying the trench, wherein at least a portion of the active region resides substantially above a region defined by the trench.
106 Citations
20 Claims
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1. A device, comprising:
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a substrate having a trench extending between a first end and a second end of the trench along a first surface of the substrate; a first semiconductor layer disposed on the first surface of the substrate and extending between the first end and the second end of the trench, the first semiconductor layer comprising a given surface and another surface; a dielectric layer between the given surface of the first semiconductor layer and the first surface of the substrate, wherein at least one sidewall at the first and second ends of the trench is substantially perpendicular to the dielectric layer that is covering the trench; and an active region disposed on the other surface of the first semiconductor layer overlying the trench, wherein at least a portion of the active region resides substantially above a region defined by the trench. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A circuit, comprising:
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a plurality of multilayer devices formed on a substrate, the substrate having a trench extending along a first surface of the substrate, each device of the plurality of multilayer devices comprising; a first layer disposed on the first surface of the substrate, the first layer comprising a given surface and another surface; a dielectric layer between the given surface of the first layer and the first surface of the substrate, wherein the trench comprises a raised portion extending from a bottom of the trench toward the dielectric layer, dividing the trench into two sections; and an active region disposed on the other surface of the first layer overlying the trench, wherein at least a portion of the active region resides substantially above a region defined by the trench. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A method of fabricating a multilayer device, comprising:
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etching a substrate to form a straight trench extending between a first end and a second end of the trench along a first surface of the substrate; bonding a structure to the substrate with a dielectric layer being formed between the structure and the substrate, wherein at least one sidewall at the first and second ends of the trench is substantially perpendicular to the dielectric layer that is covering the trench; and forming an optically active region on the structure located in an overlying relationship with the trench such that at least a portion of the optically active region resides substantially above a region defined by the trench. - View Dependent Claims (18, 19, 20)
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Specification