Patent • #US10889506B2. The present invention relates to vanadium oxide and methods of controlling reaction processes for making such materials (e.g., powders). In particular embodiments, the method includes control of oxygen partial pressure in order to kinetically control the oxidation species of the crystalline vanadium oxide material. Other methods, uses, systems, protocols,...
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Varactor with integrated micro-discharge source
Patent • #US9472689B1. An apparatus that includes a varactor element and an integrated micro-discharge source is disclosed herein. In a general embodiment, the apparatus includes at least one np junction and at least one voltage source that is configured to apply voltage across the np junction. The apparatus further includes an aperture...
Variable bandwidth filter
Patent • #US10267896B1. A variable bandwidth filter is described herein, wherein a bandwidth of a passband of the variable bandwidth filter is dynamically tunable. The variable bandwidth tuner is implemented on a CMOS chip, and acts to filter analog signals. The variable bandwidth filter comprises a plurality of finite impulse response (FIR)...
Variable Flow Exhaust Ventilation Cap for Local Exhaust Systems
Featured Opportunity • SummaryLocal Exhaust Ventilations (LEV) are vital engineering control systems used to prevent exposure to harmful airborne contaminants in the workplace. When fumes are produced, LEV systems produce enough suction to remove them, however, Current LEV systems function at constant rates, providing the same amount of suction at all times. As...
Variable rate compliance modules, assemblies and tools for suppression of drilling vibrations
Patent • #US10407998B1. A suppression module, a suppression assembly, and a drilling tool are disclosed. The suppression module includes a spindle having a first end and a second end, an ear plate slideably disposed between the first end and the second end, a spring positioned between the ear plate and the first...
Variable-pulse-shape pulsed-power accelerator
Patent • #US9974155B2. A variable-pulse-shape pulsed-power accelerator is driven by a large number of independent LC drive circuits. Each LC circuit drives one or more coaxial transmission lines that deliver the circuit's output power to several water-insulated radial transmission lines that are connected in parallel at small radius by a water-insulated post-hole...
Vector measurements using a pulsed, optically pumped atomic magnetometer
Patent • #US11841404B1. An atomic magnetometer, and a method for using same is disclosed. The method for measuring an ambient magnetic field uses an atomic magnetometer that has a probe light beam with a probe axis that probes a polarization vector of an atomic population confined within a vapor cell. The method...
Vehicle barrier with access delay
Patent • #US8523478B2. An access delay vehicle barrier for stopping unauthorized entry into secure areas by a vehicle ramming attack includes access delay features for preventing and/or delaying an adversary from defeating or compromising the barrier. A horizontally deployed barrier member can include an exterior steel casing, an interior steel reinforcing member...
Vehicle barrier with access delay
Patent • #US8210767B1. An access delay vehicle barrier for stopping unauthorized entry into secure areas by a vehicle ramming attack includes access delay features for preventing and/or delaying an adversary from defeating or compromising the barrier. A horizontally deployed barrier member can include an exterior steel casing, an interior steel reinforcing member...
Vehicle track detection in synthetic aperture radar imagery
Patent • #US10467474B1. The various technologies presented herein relate to detecting one or more vehicle tracks in radar imagery. A CCD image can be generated from a first SAR image and a second SAR image captured for a common scene, wherein the second SAR image may include a vehicle track that is...
Vehicle track identification in synthetic aperture radar images
Patent • #US10032077B1. Various technologies pertaining to identification of vehicle tracks in synthetic aperture radar coherent change detection image data are described herein. Coherent change detection images are analyzed in a parameter space using Radon transforms. Peaks of the Radon transforms correspond to features of interest, including vehicle tracks, which are identified...
Vertical Cavity Surface Emitting Lasers (VCSELs)
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Vertical III-nitride thin-film power diode
Patent • #US9595616B1. A vertical III-nitride thin-film power diode can hold off high voltages (kV's) when operated under reverse bias. The III-nitride device layers can be grown on a wider bandgap template layer and growth substrate, which can be removed by laser lift-off of the epitaxial device layers grown thereon.
Vertical tunneling field-effect transistor with enhanced current confinement
Patent • #US12199171B1. A vertical tunneling field-effect transistor and a method for its manufacture are provided. According to methods herein disclosed, oppositely doped source and drain regions are formed, and an APAM delta layer is formed in the surface of the transistor substrate, beneath a metal gate, in electrical contact with, e.g.,...
Vertically integrated optoelectronics package for MEMS devices
Patent • #US10139564B1. The present application relates to vertically integrated assemblies including a MEMS-based optomechanical architecture. In some embodiments, the assembly includes a MEMS/optoelectronic module, an emitter module, and a detector module, where these modules are vertically integrated. Methods of fabricating such assemblies are also described herein.
Via configuration for wafer-to-wafer interconnection
Patent • #US10224312B1. A modification to the standard layout of vias used for vertically-stacked wafer bonding is proposed which has been found to improve the interconnect overlay while avoiding the dishing problems associated with the planarization processes used in the creation of conductive posts within the vias. In particular, the pitch, i.e....
Vibration isolation for centrifuge testbeds
Patent • #US11612899B2. A method for isolating vibrations for centrifuge testing devices is provided. The method comprises coupling a test payload platform to a number of piezoelectric actuators and coupling the piezoelectric actuators to a reaction mass coupled to a centrifuge arm. A layer of vibration-absorbing material is sandwiched between the reaction...
Vibrational Energy Converters
Featured Opportunity • Summary Inexhaustible, miniature electrical power supplies offer the means to power battery-free microelectronic systems, or at a minimum provide a recharging capability to reduce battery size and extend their lifetimes. In particular, the unattended operation of remote microelectronic sensors and communication systems stand to benefit from inexhaustible miniature power technologies....
Vicinal light inspection of translucent materials
Patent • #US7650028B1. The present invention includes methods and apparatus for inspecting vicinally illuminated non-patterned areas of translucent materials. An initial image of the material is received. A second image is received following a relative translation between the material being inspected and a device generating the images. Each vicinally illuminated image includes...
ViralFx
Featured Opportunity • ViralFx is an integrated approach to the diagnosis and treatment of SARS-CoV-2 that is accurate, rapid, repeatable, and easily deployed In pandemic scenarios, the capacity to complete laboratory diagnostic tests can be overwhelmed due to the need for specialized equipment and highly trained personnel to perform the complex workflows for...
Visible light laser voltage probing on thinned substrates
Patent • #US9599667B1. The various technologies presented herein relate to utilizing visible light in conjunction with a thinned structure to enable characterization of operation of one or more features included in an integrated circuit (IC). Short wavelength illumination (e.g., visible light) is applied to thinned samples (e.g., ultra-thinned samples) to achieve a...
VMD fused radar—a hyper-volumetric ultra-low NAR sensor system
Patent • #US10062255B1. A system or method for a physical intrusion detection and assessment system is provided for determining a deliberate motion intrusion. The system includes first and second sensing device to sense physical data set within a predetermined space. A transducer module receives the first sensor physical data set and the...
Void-Free Electrodeposition of Copper TSVs using Automated Endpoint Detection
Featured Opportunity • Sandia’s endpoint detection method for the electrodeposition of copper through silicon vias (TSVs) could dramatically improve microelectronics manufacturing by increasing throughput and reducing consumables Through-silicon vias (TSVs) provide electrical and thermal interconnection from the front of a semiconductor chip to the back and thus are a key component of high-performance...
Voltage tunability of thermal conductivity in ferroelectric materials
Patent • #US9255347B2. A method to control thermal energy transport uses mobile coherent interfaces in nanoscale ferroelectric films to scatter phonons. The thermal conductivity can be actively tuned, simply by applying an electrical potential across the ferroelectric material and thereby altering the density of these coherent boundaries to directly impact thermal transport...
Volume-scalable high-brightness three-dimensional visible light source
Patent • #US8653500B1. A volume-scalable, high-brightness, electrically driven visible light source comprises a three-dimensional photonic crystal (3DPC) comprising one or more direct bandgap semiconductors. The improved light emission performance of the invention is achieved based on the enhancement of radiative emission of light emitters placed inside a 3DPC due to the strong...
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