Abstract: A spin qubit quantum device including: a data qubit and a measurement qubit made in a semiconducting layer and coupled to each other by a tunnel junction made in the semiconducting layer, each of which comprising a quantum dot and a control gate; an inductor coupled to the gate of one of the qubits or to another gate capacitively coupled to one of the qubits, the inductor, and a capacitor formed by said gate forming an LC circuit; a first input terminal coupled to the LC circuit and receiving a periodic control voltage of frequency fr substantially equal to the resonant frequency of the LC circuit; a voltage amplifier comprising an input coupled to the gate to which the inductor is coupled; an output terminal coupled to an output of the amplifier.

Abstract: A quantum device including: several spin qubits arranged as a matrix and each comprising a quantum dot; several electrometers each electrostatically coupled to a potential well of one of the quantum dots; circuits for applying an excitation signal to an input electrode of each electrometer, configured such that a value of the frequency, phase or maximum amplitude of each excitation signal is different from that of the other excitation signals, and applying a same excitation signal on electrometers coupled to a same row od qubits; a transimpedance amplifier having an input coupled to output electrodes of the electrometers; a demultiplexing circuit including an input electrically coupled to an output of the transimpedance amplifier, and configured to demultiplex the output signals to be delivered by the electrometers.

Abstract: An integrated circuit including a first passive component of capacitive, resistive, or inductive type, including: a plurality of second and third passive components of said type, each having a same first theoretical value Compu_t, the second components being connected together so that their values add, and each third component being associated with a first switch having its state determining whether the value of the third component adds to the values of the second components; and a plurality of fourth passive components of said type, each associated with a second switch having its state determining whether the value of the fourth component adds to the values of the second components, at least one of the fourth passive components having a second theoretical value equal to (1?P).Compu_t or to (1+P).Compu_t, P being positive and smaller than ½.

Abstract: A spin qubit quantum device including: a data qubit and a measurement qubit made in a semiconducting layer and coupled to each other by a tunnel junction made in the semiconducting layer, each of which comprising a quantum dot and a control gate; an inductor coupled to the gate of one of the qubits or to another gate capacitively coupled to one of the qubits, the inductor, and a capacitor formed by said gate forming an LC circuit; a first input terminal coupled to the LC circuit and receiving a periodic control voltage of frequency fr substantially equal to the resonant frequency of the LC circuit; a voltage amplifier comprising an input coupled to the gate to which the inductor is coupled; an output terminal coupled to an output of the amplifier.

Abstract: An integrated circuit including a first passive component of capacitive, resistive, or inductive type, including: a plurality of second and third passive components of said type, each having a same first theoretical value Compu_t, the second components being connected together so that their values add, and each third component being associated with a first switch having its state determining whether the value of the third component adds to the values of the second components; and a plurality of fourth passive components of said type, each associated with a second switch having its state determining whether the value of the fourth component adds to the values of the second components, at least one of the fourth passive components having a second theoretical value equal to (1?P).Compu_t or to (1+P).Compu_t, P being positive and smaller than ½.

Abstract: A method of calibrating a delay generation circuit and the corresponding circuit.

Abstract: A circuit for generating a time delay, including a capacitive element for integrating a first current supplied by a first current source, in which the first current source includes a switched-capacitor circuit.

Abstract: A method of calibrating a delay generation circuit and the corresponding circuit.

Abstract: A design method for a phase-locked loop comprises: a controlled-frequency oscillator; a phase comparator, to determine a phase difference between an output signal of the controlled-frequency oscillator and a reference signal; a corrector to receive as input a signal representative of the phase difference and to generate at its output a first correction signal; at least one second corrector, to receive as input a signal representative of or affected by a phase noise of the reference signal or of the output signal of the controlled-frequency oscillator and to generate at its output a second correction signal; and a circuit for generating a slaving signal for the controlled-frequency oscillator on the basis of the first and second correction signals; the method using the H-infinity method. Method for fabricating such a loop comprising a design step implementing this method. Phase-locked loop thus obtained.

Abstract: A multimode oscillator comprising: a resonator including: a moving element; actuators of the moving element according to two symmetric and antisymmetric resonance modes; several detectors of the displacement of the moving element; polarization circuitry of the detectors by signals out of phase with each other; a first calculator carrying out a first operation conserving the frequential components of the first mode and cancelling those of the second mode; a second calculator carrying out a second operation conserving the frequential components of the second mode and cancelling those of the first mode; and in which the resonator and the calculators form two self-oscillating loops making the oscillator resonate simultaneously in the two modes.

Abstract: A multimode oscillator comprising: a resonator including: a moving element; actuators of the moving element according to two symmetric and antisymmetric resonance modes; several detectors of the displacement of the moving element; polarization circuitry of the detectors by signals out of phase with each other; a first calculator carrying out a first operation conserving the frequential components of the first mode and cancelling those of the second mode; a second calculator carrying out a second operation conserving the frequential components of the second mode and cancelling those of the first mode; and in which the resonator and the calculators form two self-oscillating loops making the oscillator resonate simultaneously in the two modes.

Abstract: A design method for a phase-locked loop comprises: a controlled-frequency oscillator; a phase comparator, to determine a phase difference between an output signal of the controlled-frequency oscillator and a reference signal; a corrector to receive as input a signal representative of the phase difference and to generate at its output a first correction signal; at least one second corrector, to receive as input a signal representative of or affected by a phase noise of the reference signal or of the output signal of the controlled-frequency oscillator and to generate at its output a second correction signal; and a circuit for generating a slaving signal for the controlled-frequency oscillator on the basis of the first and second correction signals; the method using the H-infinity method. Method for fabricating such a loop comprising a design step implementing this method. Phase-locked loop thus obtained.

Abstract: A NEMS including a network of tracks and/or conducting lines on which symmetric excitation signals are applied, the network having a symmetry about an axis passing through a conducting detection line or track carrying a detection signal from the NEMS, the symmetry of the network and the signal providing a solution to a problem of parasitic capacitances generated between the network and the detection line.

Abstract: In the field of nanoresonator oscillators or NEMS (nanoelectromechanical systems) oscillators, a circuit is proposed for measuring the oscillation frequency of a resonator, including a phase-locked loop with a frequency-controlled oscillator and a phase comparator. The resonator includes a vibration excitation input and a dynamic polarization input (using strain gauges). The frequency-controlled oscillator applies a polarization frequency f1 to the polarization input. A frequency generator supplies a fixed intermediate frequency FI; a mixer receives the frequencies f1 and FI for producing an excitation frequency f0 that is the sum or difference of f1 and FI. The phase comparator receives the frequency FI and the output signal of the resonator and produces a control signal that is sent to the frequency-controlled oscillator, indirectly locking the oscillation frequency onto the resonant frequency of the resonator.

Abstract: The present application relates to a device for controlling a micro-electromechanical system MEMS or a nano-electromechanical system NEMS comprising a feedback loop provided with: means (130) for digitizing at least one analog signal from said MEMS or said NEMS and for delivering a given digital signal, a programmable delay module (170) for inducing a given delay selected from a plurality of predetermined delays to said given digital signal and delivering one or more delayed digital signals according to said given delay to excitation means of the MEMS or NEMS.

Abstract: In the field of nanoresonator oscillators or NEMS (nanoelectromechanical systems) oscillators, a circuit is proposed for measuring the oscillation frequency of a resonator, including a phase-locked loop with a frequency-controlled oscillator and a phase comparator. The resonator includes a vibration excitation input and a dynamic polarization input (using strain gauges). The frequency-controlled oscillator applies a polarization frequency f1 to the polarization input. A frequency generator supplies a fixed intermediate frequency FI; a mixer receives the frequencies f1 and FI for producing an excitation frequency f0 that is the sum or difference of f1 and FI. The phase comparator receives the frequency FI and the output signal of the resonator and produces a control signal that is sent to the frequency-controlled oscillator, indirectly locking the oscillation frequency onto the resonant frequency of the resonator.

Abstract: A field effect transistor including: a support layer, a plurality of active zones based on a semiconductor, each active zone configured to form a channel and arranged between two gates adjacent to each other and consecutive, the active zones and the gates being arranged on the support layer, each gate including a first face on the side of the support layer and a second face opposite the first face. The second face of a first of the two gates is electrically connected to a first electrical contact made on the second face of the first of the two gates, and the first face of a second of the two gates is electrically connected to a second electrical contact passing through the support layer. The gates of the transistor are not electrically connected to each other.

Abstract: A field effect transistor including: a support layer, a plurality of active zones based on a semiconductor, each active zone configured to form a channel and arranged between two gates adjacent to each other and consecutive, the active zones and the gates being arranged on the support layer, each gate including a first face on the side of the support layer and a second face opposite the first face. The second face of a first of the two gates is electrically connected to a first electrical contact made on the second face of the first of the two gates, and the first face of a second of the two gates is electrically connected to a second electrical contact passing through the support layer. The gates of the transistor are not electrically connected to each other.

Abstract: This invention relates to an RF transmission-reception device an antenna, a transmission part that includes a power amplifier that outputs an RF signal with modulated power to the antenna, a reception part, a digital processing and interface module, in which the input signal is picked up at the reception part by taking a current sample at the power supply regulator to generate an image current of the current amplitude output by the antenna to the power amplifier.

Abstract: This invention relates to an RF transmission—reception device comprising: