Semiconductor Devices with Switchable Ground-Body Connection
First Claim
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1. A semiconductor device, comprising:
- a transistor that is fabricated on a substrate, the transistor having a body; and
a switch with a first switch terminal connected to the body and a second switch terminal connected to a reference potential node, the switch configured to be controlled by a control signal to provide a first operating characteristic in the transistor by connecting the body to the reference potential node and to provide a second operating characteristic in the transistor by disconnecting the body from the reference potential node.
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Abstract
Semiconductor devices with switchable connection between body and a ground node are presented. Methods for operating and fabricating such semiconductor devices are also presented.
27 Citations
38 Claims
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1. A semiconductor device, comprising:
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a transistor that is fabricated on a substrate, the transistor having a body; and a switch with a first switch terminal connected to the body and a second switch terminal connected to a reference potential node, the switch configured to be controlled by a control signal to provide a first operating characteristic in the transistor by connecting the body to the reference potential node and to provide a second operating characteristic in the transistor by disconnecting the body from the reference potential node. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A semiconductor device, comprising:
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a stacked arrangement of transistors that is fabricated on a substrate, each transistor of the stacked arrangement having a body; and one or more switches in correspondence of one or more transistors from the stacked arrangement of transistors, each with a first switch terminal connected to the body of a corresponding transistor from the one or more transistors, and a second switch terminal connected to a corresponding reference potential node, the one or more switches configured to be controlled by a control signal to provide a first operating characteristic in the corresponding transistor by connecting the body of the corresponding transistor to the corresponding reference potential node and to provide a second operating characteristic in the corresponding transistor by disconnecting the body from the reference potential node. - View Dependent Claims (15, 16, 17, 18)
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19. A method of operating a transistor, comprising:
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coupling a body of the transistor to a reference potential node when no input signal is provided to the transistor; and decoupling the body from the reference potential node when a radio frequency (RF) signal is provided to the transistor. - View Dependent Claims (20, 21, 22, 23, 24)
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25. A method of fabricating a semiconductor device, comprising:
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fabricating a transistor on a substrate, the transistor having a body; and fabricating a switch on the substrate with a first switch terminal of the switch connected to the body and a second switch terminal of the switch connected to a reference potential node. - View Dependent Claims (26, 27, 28)
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29. A method of operating a stacked arrangement of transistors, comprising:
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coupling a body of one or more transistors from the stacked arrangement of transistors to a corresponding reference potential node when no input signal is provided to an input transistor of the stacked arrangement; and decoupling the body of the one or more transistors from the corresponding reference node when a radio frequency (RF) signal is provided to the input transistor, wherein the one or more transistors comprises the input transistor. - View Dependent Claims (30, 31, 32, 33, 34)
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35. A method of fabricating a semiconductor device, comprising:
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fabricating a stacked arrangement of one or more transistors on a substrate, each of the one or more transistors having a body; and fabricating one or more switches on the substrate in correspondence of the one or more transistors with a first switch terminal of each of the one or more switches connected to the body of a corresponding transistor and a second switch terminal of each of the one or more switches connected to a corresponding reference potential node. - View Dependent Claims (36, 37, 38)
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Specification