Elmsford, NY, United States
Elmsford, NY, United States

Time filter

Source Type

Patent
Raytheon Co. and Hypres Inc. | Date: 2016-11-18

A magnetic random access memory (MRAM) array including: a plurality of MRAM cells arranged in an array configuration, each comprising a first type nTron and a magnetic memory element; a wordline select circuit comprising of a second type nTron to drive a plurality of parallel wordlines; and a plurality of bitline select circuits, each comprising of said second type nTron for writing to and reading from a column of memory cells in the array and each capable of selecting a single MRAM cell for a memory read or write operation, wherein the second nTron has a higher current drive than the first nTron.


Patent
Hypres Inc. | Date: 2017-01-12

A transceiver architecture for wireless base stations wherein a broadband radio frequency signal is carried between at least one tower-mounted unit and a ground-based unit via optical fibers, or other non-distortive media, in either digital or analog format. Each tower-mounted unit (for both reception and transmission) has an antenna, analog amplifier and an electro-optical converter. The ground unit has ultrafast data converters and digital frequency translators, as well as signal linearizers, to compensate for nonlinear distortion in the amplifiers and optical links in both directions. In one embodiment of the invention, at least one of the digital data converters, frequency translators, and linearizers includes superconducting elements mounted on a cryocooler.


An improved microfabrication technique for Josephson junctions in superconducting integrated circuits, based on the use of a double-layer lithographic mask for partial anodization of the side-walls and base electrode of the junctions. The top layer of the mask is a resist material, and the bottom layer is a dielectric material chosen so to maximize adhesion between the resist and the underlying superconducting layer, be etch-compatible with the underlying superconducting layer, and be insoluble in the resist and anodization processing chemistries. The superconductor is preferably niobium, under a silicon dioxide layer, with a conventional photoresist or electron-beam resist as the top layer. This combination results in a substantial increase in the fabrication yield of high-density superconducting integrated circuits, increase in junction uniformity and reduction in defect density. A dry etch more compatible with microlithography may be employed.


Patent
Hypres Inc. | Date: 2017-02-17

A processor, comprising a first data input configured to receive a stream of samples of a first signal having a spectral space, the stream having a data rate of at least 4 GHz; a second data input configured to receive a stream of samples of a second signal; a multitap correlator, configured to receive the first stream of samples and the second stream of samples, and producing at least one correlation output for each respective sequential sample of the first signal received; and a programmable control configured to alter a relationship of the stream of samples of the first signal and the stream of samples of the second signal, to thereby select, under program control, an alterable correlation output.


Grant
Agency: Department of Defense | Branch: Army | Program: STTR | Phase: Phase II | Award Amount: 523.09K | Year: 2015

HYPRES, in collaboration with University of California, Berkeley, proposes to transition superconducting parametric amplifier technology into a robust line of products. In Phase I, we designed a compact package for lumped-element Josephson parametric amplifiers (LJPA) fabricated by our collaborators at MIT Lincoln Laboratory. We have also established the feasibility of digitization of the amplified output of qubits with a superconductor analog-to-digital converter (ADC) chip. This was accomplished by leveraging the complete digital data acquisition and processing infrastructure from HYPRES cryocooled digital-RF receiver product. In Phase II, we will develop a parametric amplifier product that will accommodate existing chips as well as improved LJPA chips which we plan to fabricate. Additionally, the analog output of the amplifier will be converted to the digital domain using a sensitive analog-to-digital converter to enable multiplexed operation.


Grant
Agency: Department of Energy | Branch: | Program: SBIR | Phase: Phase I | Award Amount: 149.95K | Year: 2015

This SBIR project is to improve the readout system used for cryogenic detector arrays. A frequency multiplexed scheme call fMUX is one of the prevalent methods, which is used to read out the response of cryogenic detectors, such as Transition Edge Sensors TES) Bolometers, operating at mK temperatures used for astrophysical observations of the Cosmic Microwave Background CMB). The electronics for the TES readout approach is maintained at room temperature and requires careful, wiring to minimize stray wiring inductance, stray capacitance, while at the same time minimizing the cryogenic heat load. We propose to develop improvements to this system by developing drop in replacement components, specifically in the link between the 4K cryocooler stage and 250mK TES. We propose to build a low inductance flexible line which will go the majority of the physical distance from the 4K stage to the 250mK bolometer array. Any stray inductance in these lines can cause reduced system performance by introducing unwanted crosstalk, so its electrical and thermal properties must be precisely managed. We also propose to build a Monolithic Microwave Integrated Circuit MMIC) which would retrofit the resonator board currently used. This resonator structure required for the frequency multiplexing scheme is currently achieved by using discrete surface mount capacitors and custom fabricated inductances, we would replace these discrete elements with lumped element resonators, which are easy to reproduce in the mass quantities required in the Thin film based multi-layer HYPRES Superconducting fabrication technology. The HYPRES goal is to develop technology, which once developed could be introduced with no other change to current readout architecture and thus would be low risk, high reward retrofit for the experiment which uses it. In Phase I project, we will simulate, fabricate and test parts of these components. In Phase II we plan to concentrate on delivering a fully working prototype employing our improvement directly to the Cryogenic detector community. Argonne National Lab is part of the CMB Telescope deployed at the South Pole, responsible for fabricating the TES Bolometers. Our final product is intended to interface directly with the Bolometer wedge they are making, so we plan to work closely with them to insure that our components can be drop in improved replacements for their current solution.


Patent
Raytheon Co. and Hypres Inc. | Date: 2015-07-29

A magnetic random access memory (MRAM) array including: a plurality of MRAM cells arranged in an array configuration, each comprising a first type nTron and a magnetic memory element; a wordline select circuit comprising of a second type nTron to drive a plurality of parallel wordlines; and a plurality of bitline select circuits, each comprising of said second type nTron for writing to and reading from a column of memory cells in the array and each capable of selecting a single MRAM cell for a memory read or write operation, wherein the second nTron has a higher current drive than the first nTron.


An improved microfabrication technique for Josephson junctions in superconducting integrated circuits, based on the use of a double-layer lithographic mask for partial anodization of the side-walls and base electrode of the junctions. The top layer of the mask is a resist material, and the bottom layer is a dielectric material chosen so to maximize adhesion between the resist and the underlying superconducting layer, be etch-compatible with the underlying superconducting layer, and be insoluble in the resist and anodization processing chemistries. The superconductor is preferably niobium, under a silicon dioxide layer, with a conventional photoresist or electron-beam resist as the top layer. This combination results in a substantial increase in the fabrication yield of high-density superconducting integrated circuits, increase in junction uniformity and reduction in defect density. A dry etch more compatible with microlithography may be employed.


Patent
Hypres Inc. | Date: 2016-01-29

A processor, comprising a first data input configured to receive a stream of samples of a first signal having a spectral space, the stream having a data rate of at least 4 GHz; a second data input configured to receive a stream of samples of a second signal; a multitap correlator, configured to receive the first stream of samples and the second stream of samples, and producing at least one correlation output for each respective sequential sample of the first signal received; and a programmable control configured to alter a relationship of the stream of samples of the first signal and the stream of samples of the second signal, to thereby select, under program control, an alterable correlation output.


Grant
Agency: Department of Energy | Branch: | Program: SBIR | Phase: Phase I | Award Amount: 149.97K | Year: 2016

The magnetization of polarized nuclei can be determined by using analog DC SQUID (Superconducting QUantum Interference Device) magnetometers. When a large number of channels (>10) are needed for imaging, multiplexed digital SQUIDs that integrate analog SQUIDs with on-chip digital processing circuits, can be utilized and then instrumented with simple peripheral electronics facilitating data acquisition. However, applications requiring few read-out channels are better served with analog SQUIDs. In order to utilize a conventional analog DC SQUID, its voltage is amplified by a step-up transformer and its transfer characteristics is linearized so it could be instrumented with room temperature electronics. The amplification and linearization limits the system bandwidth and require extensive peripheral electronics. A novel analog SQUID is proposed to be developed, which completely eliminates the extensive peripheral electronics and will integrate the SQUID with a superconducting pick- up coil for single-channel systems. An Additional Positive Feedback (APF) coil is incorporated on chip with the analog SQUID, which increases the gain of the device substantially, and as a result no step-up transformer and linearization electronics are required for read out. This additional positive feedback enhances the output voltage gain of the SQUID and enables the use of a direct read-out, circumventing the conventional modulation scheme and increasing the bandwidth more than one order of magnitude to 1 MHz. The objective of the proposed research is to develop high-sensitivity, thin-film low-temperature superconductive SQUID magnetometers with additional positive feedback and integrated pick-up loops in a highly sophisticated cryostat system. The magnetometer will be optimized for measurement of the magnetization of polarized nuclei in a magnetic field for measuring beam currents at the scale of 50 m to 1 mm. Hypres will design an APF SQUID with the goal of getting a SQUID magnetometer with adequate gain so it can be instrumented with simple peripheral electronics without the need for step-up transformer and lock-in amplification. The proposed work will develop a SQUID magnetometer with optimum field sensitivity for specific applications such as nuclear physics instrumentation and general applications, which require higher-sensitivity SQUID magnetometers and gradiometers but lower spatial resolution. SQUIDs are extremely sensitive magnetometers, which can be adapted for many applications such high energy and nuclear physics applications as well as sensors for biomedical applications and corrosion and cracks in metals. The proposed magnetometer system is compact and cost-effective facilitating its use in many research centers and laboratories. Commercial Applications and Other Benefits: The magnetometer system with the new advanced APF SQUID allows Hypres to extend its capabilities and establish the instrumentation techniques required for a rapid-cycle commercial capability to design, fabricate, and characterize custom, low-noise, integrated thin film SQUID magnetometers and gradiometers for high energy and nuclear physics instrumentation. Upon completion of this program, the instruments will be capable of making measurements impossible with any other technique. In addition, the new instrument as a biomagnetometer should lead to new insights into cellular biology and electro- and magnetophysiology. As they are developed, these SQUID chips will be incorporated immediately into the instrument for research and will be made available to others. The instrument will be sufficiently compact and inexpensive for investigators.

Loading Hypres Inc. collaborators
Loading Hypres Inc. collaborators