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US 2026/0142620 A1Published application
Semiconductor device and operating method thereof
AssigneesTaiwan Semiconductor Manufacturing Company, Ltd., National Cheng Kung University
InventorsKuang-Wei CHENG, Chao An SHEN, Tai Jung HSU
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Abstract
A semiconductor device includes a first inductor, a second inductor and at least one varactor. The first inductor is configured to output at least one output signal. The second inductor is coupled to the first inductor with transformer coupling. The at least one varactor is coupled to the second inductor. A frequency of the at least one output signal is tuned according to the at least one varactor.
Claims20
A semiconductor device, comprising:
- a first inductor configured to receive a first reference voltage signal;
- a second inductor coupled to the first inductor with transformer coupling;
- a third inductor coupled to the first inductor and the second inductor as a trifilar transformer, and configured to receive a second reference voltage signal;
- and
- at least one switch coupled between the first inductor and the third inductor,
- wherein a first voltage level of the first reference voltage signal is higher than a second voltage level of the second reference voltage signal.
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A method, comprising:
- coupling two terminals of a first inductor to a first node and a second node, respectively;
- coupling two terminals of a second inductor to a third node and a fourth node, respectively;
- coupling two terminals of a first switch to the first node and the third node, respectively;
- and
- coupling two terminals of a second switch to the second node and the fourth node, respectively.
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A semiconductor device, comprising:
- at least one varactor;
- a first inductor coupled to the at least one varactor, and comprising a first inductor portion and a second inductor portion;
- and
- a second inductor coupled to the first inductor with transformer coupling, and comprising a third inductor portion and a fourth inductor portion,
- wherein each of the at least one varactor is disposed between the third inductor portion and the fourth inductor portion, and
- each of the third inductor portion and the fourth inductor portion is disposed between the first inductor portion and the second inductor portion.
3 more elements
Dependencies are inferred from the claim text.