公开(公告)号：US12191554B2

公开(公告)日：2025-01-07

申请号：US17347365

申请日：2021-06-14

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Bichoy Bahr ,  Benjamin Stassen Cook ,  Scott R. Summerfelt

IPC: H01P3/12 ,  H01L23/31 ,  H01L25/18 ,  H05K1/18

Abstract: In some examples, a package comprises a semiconductor die having a first surface and a second surface opposing the first surface, the semiconductor die including circuitry formed in the first surface. The package includes an acoustic waveguide in the semiconductor die, the acoustic waveguide including an array of capacitors. The array of capacitors includes a transducer portion and a diffraction grating portion. The transducer portion is configured to convert signals between electrical signals and acoustic waves, and the diffraction grating portion is configured to direct the acoustic waves toward and receive the acoustic waves from the second surface.

公开(公告)号：US11933670B2

公开(公告)日：2024-03-19

申请号：US17463013

申请日：2021-08-31

Applicant: Texas Instruments Incorporated

Inventor： Bichoy Bahr ,  Jeronimo Segovia Fernandez ,  Hassan Omar Ali

IPC: G01J1/46 ,  G01J1/04 ,  G02B5/20

CPC classification number: G01J1/46 ,  G01J1/0403 ,  G01J1/0488 ,  G02B5/208

Abstract: An example apparatus includes: a semiconductor substrate; a mechanical resonator supported by the substrate, the mechanical resonator including an array of capacitors; and a plasmonic infrared (IR) absorber including an array of metal structures. The mechanical resonator is between the substrate and the IR absorber.

公开(公告)号：US11456751B1

公开(公告)日：2022-09-27

申请号：US17536924

申请日：2021-11-29

Applicant: Texas Instruments Incorporated

Inventor： Bichoy Bahr ,  Baher Haroun ,  Swaminathan Sankaran ,  Juan Alejandro Herbsommer

IPC: H03L7/099 ,  H03B5/32 ,  H03L7/08 ,  H03L7/14 ,  H03L7/10 ,  H03L7/06 ,  H03L1/00 ,  H03L1/02 ,  H03L7/00

Abstract: A reference frequency signal generator comprises a plurality of ovenized reference crystal oscillators (OCXOs) having different turn-over-temperatures, a selector logic circuit coupled to outputs of the OCXOs, a temperature sensor, and a controller coupled to an output of the temperature sensor. The selector logic circuit outputs one of the outputs of the OCXOs based on a control signal from the controller. The controller also generates control signals for the OCXOs. In some implementations, the reference frequency signal generator includes a phase-locked loop or a fractional output divider coupled to the output of the selector logic circuit and configured to receive a calibration signal from the controller.

公开(公告)号：US11303288B2

公开(公告)日：2022-04-12

申请号：US17163788

申请日：2021-02-01

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Bichoy Bahr ,  Kaichien Tsai ,  Scott R. Summerfelt

IPC: H03L7/099 ,  H03L7/24 ,  H03L7/08 ,  H03L7/085 ,  H03B1/00 ,  H03L1/02 ,  H03L7/00 ,  H03B28/00 ,  H01L25/065

Abstract: An oscillator assembly includes a scribe seal, an oscillator circuit, and a calibration circuit. The oscillator circuit includes an output. The calibration circuit is coupled to the oscillator circuit. The calibration circuit includes a reference frequency terminal, a conductor coupled to the reference frequency terminal, and an oscillator input terminal. The conductor extends to an edge of the oscillator circuit assembly and penetrates the scribe seal. The oscillator input terminal is coupled to the output of the oscillator circuit.

公开(公告)号：US11119038B1

公开(公告)日：2021-09-14

申请号：US16845962

申请日：2020-04-10

Applicant: Texas Instruments Incorporated

Inventor： Argyrios Dellis ,  Adam Joseph Fruehling ,  Bichoy Bahr ,  Juan Herbsommer

IPC: G01N21/3581 ,  G01J3/447 ,  G01J3/42 ,  G01J3/10

Abstract: A millimeter wave molecular sensor system is provided. The system includes a physics cell configured to contain a sample, a directional coupler configured to receive input millimeter waves, partition the input millimeter waves into a pump signal and a probe signal for transfer to the physics cell, a receiver configured to receive millimeter waves exiting the physics cell, a Faraday rotator coupled between a pump transmitter and the physics cell, and a coupling iris coupled between the Faraday rotator and the physics cell, configured to pass millimeter waves having a first polarization into the physics cell. The Faraday rotator includes a Faraday material, and an electronic device configured to apply a magnetic field to the Faraday material parallel to a propagation direction of the millimeter waves such that when the electronic device is activated, the Faraday material rotates a polarization of the millimeter waves passing through the Faraday rotator.

公开(公告)号：US20210203332A1

公开(公告)日：2021-07-01

申请号：US17163788

申请日：2021-02-01

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Bichoy Bahr ,  Kaichien Tsai ,  Scott R. Summerfelt

IPC: H03L7/099 ,  H03L7/24 ,  H03L7/08 ,  H03L7/085 ,  H03B1/00 ,  H03L1/02 ,  H03L7/00 ,  H03B28/00 ,  H01L25/065

Abstract: An oscillator assembly includes a scribe seal, an oscillator circuit, and a calibration circuit. The oscillator circuit includes an output. The calibration circuit is coupled to the oscillator circuit. The calibration circuit includes a reference frequency terminal, a conductor coupled to the reference frequency terminal, and an oscillator input terminal. The conductor extends to an edge of the oscillator circuit assembly and penetrates the scribe seal. The oscillator input terminal is coupled to the output of the oscillator circuit.

公开(公告)号：US10541697B2

公开(公告)日：2020-01-21

申请号：US15690117

申请日：2017-08-29

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Bichoy Bahr ,  Baher Haroun ,  Ali Kiaei

IPC: H03L7/24 ,  H03K3/03 ,  H03H9/54 ,  H03K3/013

Abstract: For producing a low-power, low-phase noise oscillating signal using a self-injection locking oscillator, examples include: producing, using an oscillator, a signal having a base frequency component and an Nth harmonic component, in which N is a selected integer and N>1; filtering the signal through a bandpass filter with Q factor ≥5, the filter configured to pass the Nth harmonic component as a filtered Nth harmonic component; and injecting the filtered Nth harmonic component into the oscillator to self-injection lock the base frequency of the signal.

公开(公告)号：US20190109561A1

公开(公告)日：2019-04-11

申请号：US15726291

申请日：2017-10-05

Applicant: Texas Instruments Incorporated

Inventor： Bichoy Bahr ,  Baher Haroun ,  Ali Kiaei

IPC: H03B5/04 ,  H03H9/02 ,  G01C19/56 ,  H03B5/30 ,  H03H9/24 ,  G01K7/32

Abstract: An oscillator is provided with an oscillator circuit having tank circuit terminals for coupling to a tank circuit. A microelectromechanical system (MEMS) resonator serves as a tank circuit. The MEMS resonator is coupled to the oscillator circuit using a transformer with a primary coil coupled to the oscillator tank circuit terminals and a secondary coil coupled to the MEMS resonator terminals, wherein the transformer has a turns ratio of N:1 and N is greater than 1.

公开(公告)号：US11984850B2

公开(公告)日：2024-05-14

申请号：US17876008

申请日：2022-07-28

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Udit Rawat ,  Bichoy Bahr ,  Swaminathan Sankaran

IPC: H03B5/24 ,  G01S13/88 ,  H03H9/02

CPC classification number: H03B5/24 ,  G01S13/88 ,  H03H9/02007

Abstract: An oscillator circuit includes a bulk acoustic wave resonator, a differential active inductor circuit, and a gain circuit. The differential active inductor circuit is configured to bias the bulk acoustic wave resonator. The differential active inductor circuit is coupled between the bulk acoustic wave resonator and a power supply terminal. The gain circuit is coupled to the bulk acoustic wave resonator.

公开(公告)号：US11368124B1

公开(公告)日：2022-06-21

申请号：US17189556

申请日：2021-03-02

Applicant: Texas Instruments Incorporated

Inventor： Sachin Kalia ,  Tolga Dinc ,  Bichoy Bahr ,  Swaminathan Sankaran

IPC: H03B5/32 ,  H03H9/17 ,  H03L7/099

Abstract: An oscillator includes: a bulk-acoustic wave (BAW) resonator having a first BAW resonator terminal and a second BAW resonator terminal; and an active circuit coupled to the first and second BAW resonator terminals and having a series resonance topology with: a first transistor; a second transistor; a first resistor; a second resistor; a capacitive network coupled to first and second BAW resonator terminals and to respective current terminals of the first and second transistors; and an inductor having a first inductor terminal and a second inductor terminal, the first inductor terminal coupled to the capacitive network, and the second inductor terminal coupled to ground terminal.