Qorvo Us, Inc.

Equal1.labs Inc.

Rf Micro Devices, Inc.

Equal 1 Laboratories Ireland Limited

Rf Micro Devices (cayman Islands), Ltd.

Equal!.labs Inc.

Qirvo Us, Inc.

Dirk Robert Walter Leipold

George Adrian Maxim

Baker P Scott

Michael Albert Asker

Marcus Granger-Jones

Julio C Costa

Nadim Khlat

Danny W Chang

Hideya Oshima

Daniel Charles Kerr

Merrill Albert Hatcher, Jr

Kelvin Kai Tuan Yan

John August Orlowski

Toshiaki Moriuchi

Robert Aigner

Gernot G Fattinger

Eric K Bolton

Ali Esmailiyan

Hans Haenlein

David E Reed

Jon Chadwick

Imran Bashir

David Redmond

Stephen Mobley

Robert Bogdan Staszewski

Alexander Wayne Hietala

Ruediger Bauder

Michael Carroll

Christian Rye Iversen

Jayanti Jaganatha Rao

Michael F Zybura

Jinsung Choi

Padmmasini Desikan

Ralph Christopher Nieri

Christopher T Brown

Wolfram C Stiebler

Desikan Padmmasini

A novel and useful system and method of quantum stochastic rounding using silicon based quantum dot arrays. Unitary noise is derived from a probability of detecting a particle within a quantum dot comprising position based charge qubits with two time independent basis states |0> and |1>. A two level electron tunneling device generates quantum noise and includes a reservoir of particles, a quantum dot, and a barrier used to control tunneling between the reservoir and the quantum dot. A detector outputs a digital stream corresponding to the probability of a particle being detected. Controlling the bias applied to the barrier controls the probability of detection. The probability density function (PDF) of the output unitary noise is controlled to correspond to a desired probability. Unitary noise is used to perform stochastic rounding by controlling the bias applied to the barrier according to a remainder of numbers to be rounded.

System and method of quantum stochastic rounding using silicon based quantum dot arrays

Embodiments of an apparatus that includes a substrate and an inductor residing in the substrate are disclosed. In one embodiment, the inductor is formed as a conductive path that extends from a first terminal to a second terminal. The conductive path has a shape corresponding to a two-dimensional (2D) lobe laid over a three-dimensional (3D) volume. Since the shape of the conductive path corresponds to the 2D lobe laid over a 3D volume, the magnetic field generated by the inductor has magnetic field lines that are predominately destructive outside the inductor and magnetic field lines that are predominately constructive inside the inductor. In this manner, the inductor can maintain a high quality (Q) factor while being placed close to other components.

Advanced 3D inductor structures with confined magnetic field

A novel and useful system wiring apparatus and related techniques that address the need to feed power and electronic signals to and from a sample board between the cold, low pressure region in a vacuum chamber and outside room temperature and atmospheric pressure. The wiring apparatus balances electrical resistance with the thermal conductivity of the power and signal conductors. Printed flexible cables are used having an annular sealing region which together with O-rings provide vacuum sealing while allowing electrical signals to pass between integrated circuit(s) inside the vacuum chamber and equipment outside the chamber. A thermal anchor is placed along the printed flexible cable to maintain a desired temperature along the cable. The printed flexible circuits are multilayer with two outer layers serving as an RF shield while two inner layers comprise the signal lines which typically require shielding, electrical isolation from each other and from external electromagnetic fields.

Trans-vacuum printed flexible wiring apparatus

Printed flexible wiring apparatus in a cryostat

Cryostat suspended sample board

A novel and useful quantum computing machine includes classic computing and quantum computing cores. A programmable pattern generator executes instructions that control the quantum core. A pulse generator generates the control signals input to the quantum core to perform quantum operations. A partial readout of the quantum state is re-injected into the quantum core to extend decoherence time. Access gates control movement of quantum particles in the quantum core. Errors are corrected from the readout before being re-injected into the quantum core. Internal and external calibration loops calculate error syndromes and calibrate control pulses input to the quantum core. Control of the quantum core is provided from an external support unit via the pattern generator or retrieved from classic memory where sequences of commands are stored in memory. A cryostat unit functions to cool the quantum computing core to approximately 4 Kelvin.

Reprogrammable quantum processor architecture

Doherty radio frequency (RF) amplifier circuitry includes an input node, an output node, a main amplifier path, and a peaking amplifier path. The main amplifier path is coupled between the input node and the output node and includes a main amplifier. The peaking amplifier path is coupled in parallel with the main amplifier path between the input node and the output node, and includes a peaking amplifier and a peaking variable gain preamplifier between the input node and the peaking amplifier. The peaking variable gain preamplifier is configured to adjust a current provided to the peaking amplifier.

Doherty radio frequency amplifier circuitry

A novel and useful quantum computing machine architecture that includes a classic computing core as well as a quantum computing core. A programmable pattern generator executes sequences of instructions that control the quantum core. In accordance with the sequences, a pulse generator functions to generate the control signals that are input to the quantum core to perform quantum operations. A partial readout of the quantum state in the quantum core is generated that is subsequently re-injected back into the quantum core to extend decoherence time. Access gates control movement of quantum particles in the quantum core. Errors are corrected from the partial readout before being re-injected back into the quantum core. Internal and external calibration loops calculate error syndromes and calibrate the control pulses input to the quantum core. Control of the quantum core is provided from an external support unit via the pattern generator or can be retrieved from classic memory where sequences of commands for the quantum core are stored a priori in the memory. A cryostat unit functions to provide several temperatures to the quantum machine including a temperature to cool the quantum computing core to approximately 4 Kelvin.

Reprogrammable quantum processor architecture incorporating quantum error correction

A novel and useful modified semiconductor fabrication technique for realizing reliable semiconductor quantum structures. Quantum structures require a minimization of the parasitic capacitance of the control gate and the quantum well. The modified semiconductor process eliminates the fabrication of the metal, contact, and optionally the raised diffusion layers from the quantum wells, thereby resulting in much lower well and gate capacitances and therefore larger Coulomb blockade voltages. This allows easier implementation of the electronic control circuits in that they can have larger intrinsic noise and relaxed analog resolution. Several processes are disclosed including implementations of semiconductor quantum structures with tunneling through an oxide layer as well as tunneling through a local well depleted region. These techniques can be used in both planar semiconductor processes and 3D, e.g., FinFET, semiconductor processes. A dedicated process masking step is used for realizing the raised diffusions. In addition, the edge of the raised diffusion layer may be placed either in the gate region or the active layer region.

Semiconductor process optimized for quantum structures

A novel and useful system and method of generating quantum unitary noise using silicon based quantum dot arrays. Unitary noise is derived from a probability of detecting a particle within a quantum dot array structure comprising position based charge qubits with two time independent basis states |0&#x3e; and |1&#x3e;. A two level electron tunneling device such as an interface device, qubit or other quantum structure is used to generate quantum noise. The electron tunneling device includes a reservoir of particles, a quantum dot, and a barrier that is used to control tunneling between the reservoir and the quantum dot. A detector circuit connected to the device outputs a digital stream corresponding to the probability of a particle of being detected. Controlling the bias applied to the barrier controls the probability of detection. Thus, the probability density function (PDF) of the output unitary noise can be controlled to correspond to a desired probability. The unitary noise can be used in stochastic rounding by controlling the bias applied to the barrier in accordance with a remainder of numbers to be rounded.

System and method of generating quantum unitary noise using silicon based quantum dot arrays

Novel and useful quantum structures having a continuous well with control gates that control a local depletion region to form quantum dots. Local depleted well tunneling is used to control quantum operations to implement quantum computing circuits. Qubits are realized by modulating gate potential to control tunneling through local depleted region between two or more sections of the well. Complex structures with a higher number of qdots per continuous well and a larger number of wells are fabricated. Both planar and 3D FinFET semiconductor processes are used to build well to gate and well to well tunneling quantum structures. Combining a number of elementary quantum structure, a quantum computing machine is realized. An interface device provides an interface between classic circuitry and quantum circuitry by permitting tunneling of a single quantum particle from the classic side to the quantum side of the device. Detection interface devices detect the presence or absence of a particle destructively or nondestructively.

Finfet quantum structures utilizing quantum particle tunneling through local depleted well

Quantum-classic detection interface device

Novel and useful quantum structures having a continuous fully depleted well with control gates that form two quantum dot on either side of the gate. Appropriate potentials are applied to the well and control gate to control quantum tunneling between quantum dots thereby enabling quantum operations to occur. Qubits are realized by modulating applied gate potential to control tunneling through a quantum transport path between two or more sections of the well. Complex structures with a higher number of quantum dots per continuous well and a larger number of wells can be fabricated. Both planar and 3D FinFET semiconductor processes are used to build well to gate and well to well tunneling quantum structures. An injection device permits tunneling of a single quantum particle from a classic side to a quantum side of the device. Detection interface devices detect the presence or absence of a particle destructively or nondestructively.

Quantum structures using aperture channel tunneling through depletion region

A novel and useful fully integrated quantum computer containing both quantum core circuitry and associated classical electronic control circuits on the same monolithic die. The integrated quantum computer avoids ESD loading on the quantum structures and minimizes the need for long interconnects with resultant large parasitic inductances and capacitances. Such parasitics reduce the maximum operating frequency of the realized quantum core structures. A cryostat unit functions to provide several temperatures to the quantum computer including a temperature to cool the quantum core to approximately 4&#xb0; K and the interface SoC to 77&#xb0; K. Alternatively, the interface circuitry is also integrated with the main QPU on the same die. A programmable pattern generator executes sequences of instructions that control the quantum core. In accordance with the sequences, a pulse generator functions to generate the control signals that are input to the quantum core to perform quantum operations.

Integrated quantum computer incorporating quantum core and associated classical control circuitry

Novel and useful quantum structures that provide various control functions. Particles are brought into close proximity to interact with one another and exchange information. After entanglement, the particles are moved away from each other but they still carry the information contained initially. Measurement and detection are performed on the particles from the entangled ensemble to determine whether the particle is present or not in a given qdot. A quantum interaction gate is a circuit or structure operating on a relatively small number of qubits. Quantum interaction gates implement several quantum functions including a controlled NOT gate, quantum annealing gate, controlled SWAP gate, a controlled Pauli rotation gate, and ancillary gate. These quantum interaction gates can have numerous shapes including double V shape, H shape, X shape, L shape, I shape, etc.

Semiconductor controlled quantum Pauli interaction gate

Growing community of inventors

San Jose, CA, United States of America

Dirk Robert Walter Leipold