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公开(公告)号:US20180152161A1
公开(公告)日:2018-05-31
申请号:US15682918
申请日:2017-08-22
Inventor: Hong-Lin CHU , Hsieh-Hung HSIEH , Tzu-Jin YEH
CPC classification number: H03G3/3042 , G01R31/3606 , H01M10/48 , H03F3/24 , H03G3/001 , H04B1/0466 , H04B2001/0416
Abstract: A circuit includes a first device between a first input node and an internal node, a second device between a second input node and the internal node, a third device between the internal node and ground, a fourth device between the internal node and an output node, and a fifth device between the output node and ground. The second and third devices generate a direct current (DC) voltage on the internal node by dividing a bias voltage on the second input node. The fourth device generates, from the DC voltage, a first component of an output voltage on the output node. The first and third devices generate a modulation signal on the internal node by dividing a radio frequency (RF) signal on the first input node. The fifth device rectifies the modulation signal to generate a second output voltage component.
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公开(公告)号:US20250007459A1
公开(公告)日:2025-01-02
申请号:US18886420
申请日:2024-09-16
Inventor: Chi-Hsien LIN , Ho-Hsiang CHEN , Hsien-Yuan LIAO , Tzu-Jin YEH , Ying-Ta LU
Abstract: A voltage-controlled oscillator (VCO) includes a power supply source, a voltage source, a reference voltage node, first and second transistors, each including a source terminal coupled to the reference voltage node, and first through fourth conductive structures. The first conductive structure includes a first terminal coupled to the power supply source, a first extending portion coupled between the first terminal and a drain terminal of the first transistor, and a second extending portion coupled between the first terminal and a drain terminal of the second transistor, and the second conductive structure includes a second terminal coupled to the voltage source, a third extending portion coupled in series with the third conductive structure between the second terminal and a gate of the first transistor, and a fourth extending portion coupled in series with the fourth conductive structure between the second terminal and a gate of the second transistor.
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公开(公告)号:US20220263464A1
公开(公告)日:2022-08-18
申请号:US17728877
申请日:2022-04-25
Inventor: Chi-Hsien LIN , Ho-Hsiang CHEN , Hsien-Yuan LIAO , Tzu-Jin YEH , Ying-Ta LU
Abstract: An oscillator includes a forward stage including first and second terminals and a transformer-coupled band-pass filter (BPF) coupled between the first and second terminals and including a coupling device between the first and second terminals, and a transformer including first and second windings in a metal layer of an IC. The first winding includes a first conductive structure coupled to the first terminal and a second conductive structure coupled to a voltage node, a third conductive structure including first and second extending portions connected to the first and second conductive structures. The second winding includes a fourth conductive structure including a third extending portion coupled to the voltage node, and a fourth extending portion coupled to the second terminal. The third extending portion is between the second conductive structure and the first extending portion, and the fourth extending portion is between the first conductive structure and the second extending portion.
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公开(公告)号:US20210234508A1
公开(公告)日:2021-07-29
申请号:US17231245
申请日:2021-04-15
Inventor: Chi-Hsien LIN , Ho-Hsiang CHEN , Hsien-Yuan LIAO , Tzu-Jin YEH , Ying-Ta LU
IPC: H03B5/12
Abstract: In some embodiments, a differential oscillator includes a differential circuit coupled between a first output node and a second output node and a transformer-coupled band-pass filter (BPF). The transformer-coupled BPF is coupled between the first output node and the second output node and includes a coupling device and a transformer. The coupling device is coupled between the first output node and the second output node. The transformer includes a first winding coupled between the first output node and a voltage node and a second winding coupled between the second output node and the voltage node.
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公开(公告)号:US20200007080A1
公开(公告)日:2020-01-02
申请号:US16432004
申请日:2019-06-05
Inventor: Chi-Hsien LIN , Ho-Hsiang CHEN , Hsien-Yuan LIAO , Tzu-Jin YEH , Ying-Ta LU
IPC: H03B1/04 , H03L7/099 , H01L23/528 , H01L23/522 , H01L23/66 , H03H7/01 , H03B5/12
Abstract: A voltage-controlled oscillator (VCO) includes a power supply node configured to have a power supply voltage. A reference node is configured to have a first reference voltage. A transformer-coupled band-pass filter (BPF) is coupled to a cross-coupled pair of transistors. The cross-coupled pair of transistors and the transformer-coupled band-pass filter are positioned between the power supply node and the reference node.
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公开(公告)号:US20180006146A1
公开(公告)日:2018-01-04
申请号:US15705469
申请日:2017-09-15
Inventor: Chewn-Pu JOU , Tzu-Jin YEH , Chia-Chung CHEN
Abstract: A semiconductor device includes a plurality of fins over a substrate. Each fin of the plurality of fins extends in a first direction substantially perpendicular to a bottom surface of the substrate, and each fin of the plurality of fins comprises a first doped region having a first dopant type. The semiconductor device further includes an isolation region over the substrate between a first fin of the plurality of fins and a second fin of the plurality of fins adjacent to the first fin. The semiconductor device further includes a second doped region extends continuously across the isolation region, the second doped region extends into each fin of the plurality of fins, and a dimension of the second doped region in the isolation region in a second direction perpendicular to the first direction is less than a dimension of the at least one isolation region in the second direction.
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