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....
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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...
VoroCrust v. 1.0
Featured Opportunity • VoroCrust v. 1.0 is one of the first fully automated Voronoi meshing software programs reliable enough for anyone to generate a mesh that conforms to a complex model without clipping—regardless of experience. While there are other meshing software programs currently on the market, VoroCrust is the only one that utilizes...
Vorocrust v1.0
Software • VoroCrust v. 1.0 is one of the first fully automated Voronoi meshing software programs reliable enough for anyone to generate a mesh that conforms to a complex model without clipping—regardless of experience.
Wafer scale oblique angle plasma etching
Patent • #US9659797B1. Wafer scale oblique angle etching of a semiconductor substrate is performed in a conventional plasma etch chamber by using a fixture that supports a multiple number of separate Faraday cages. Each cage is formed to include an angled grid surface and is positioned such that it will be positioned...
Wafer-level packaging with compression-controlled seal ring bonding
Patent • #US8575748B1. A device may be provided in a sealed package by aligning a seal ring provided on a first surface of a first semiconductor wafer in opposing relationship with a seal ring that is provided on a second surface of a second semiconductor wafer and surrounds a portion of the...
Water and heat hub micro-system and method
Patent • #US12540457B1. A water and heat hub micro-system and method that provides heat exchange, water consumption, and micro-water-network capabilities, for example, to a single building system or a connected community system for heat and water management. The micro-system is capable of operating independently or may be aggregated with other water and...
Water-Free Degradation of Organophosphates
Featured Opportunity • Chemical warfare agents (CWAs) present a threat to national security at home and abroad. Current methods to neutralize CWAs and organophosphates rely largely upon reactions in water-based conditions. Though broadly effective, water-based degradation techniques will corrode or short electrical circuitry, rendering contaminated mission-critical electronics inoperable. Researchers at Sandia National Laboratories...
Water-soluble titanium alkoxide material
Patent • #US7741486B1. A water soluble, water stable, titanium alkoxide composition represented by the chemical formula (OC6H6N)2Ti(OC6H2(CH2N(CH3)2)3-2,4,6)2 with a theoretical molecular weight of 792.8 and an elemental composition of 63.6% C, 8.1% H, 14.1% N, 8.1% O and 6.0% Ti.
Water-splitting using photocatalytic porphyrin-nanotube composite devices
Patent • #US7338590B1. A method for generating hydrogen by photocatalytic decomposition of water using porphyrin nanotube composites. In some embodiments, both hydrogen and oxygen are generated by photocatalytic decomposition of water.
Wave energy converter buoy with variable geometry
Patent • #US11536243B2. A nonlinear control design technique capitalizes on a wave energy converter comprising a shaped buoy having a variable geometry wave energy. For example, the shaped buoy can have an hourglass (HG) geometry having a variable cone or steepness angle. The HG buoy is assumed to operate in the heave...
Wave-plate structures, power selective optical filter devices, and optical systems using same
Patent • #US8213070B2. In an embodiment, an optical filter device includes an input polarizer for selectively transmitting an input signal. The device includes a wave-plate structure positioned to receive the input signal, which includes first and second substantially zero-order, zero-wave plates arranged in series with and oriented at an angle relative to...
Waveform frequency notching
Patent • #US9645227B1. The various technologies presented herein relate to incorporating one or more notches into a radar spectrum, whereby the notches relate to one or more frequencies for which no radar transmission is to occur. An instantaneous frequency is monitored and if the frequency is determined to be of a restricted...
Waveform warping for general frequency-modulated radar waveforms
Patent • #US10473755B1. Various technologies pertaining to motion compensation for radar systems using FM waveforms are described herein. A waveform generator outputs a parametrized, pulsed FM waveform to a radar antenna, whereupon the radar antenna emits pulsed electromagnetic (EM) radiation into a target area based upon the parametrized FM waveform. The parametrized...
Waveguide device and method for making same
Patent • #US7256667B1. A monolithic micromachined waveguide device or devices with low-loss, high-power handling, and near-optical frequency ranges is set forth. The waveguide and integrated devices are capable of transmitting near-optical frequencies due to optical-quality sidewall roughness. The device or devices are fabricated in parallel, may be mass produced using a LIGA...
Waveguide module comprising a first plate with a waveguide channel and a second plate with a raised portion in which a sealing layer is forced into the waveguide channel by the raised portion
Patent • #US9947981B1. The various technologies presented herein relate to utilizing a sealing layer of malleable material to seal gaps, etc., at a joint between edges of a waveguide channel formed in a first plate and a surface of a clamping plate. A compression pad is included in the surface of the...
Wavelength-doubling optical parametric oscillator
Patent • #US7248397B1. A wavelength-doubling optical parametric oscillator (OPO) comprising a type II nonlinear optical medium for generating a pair of degenerate waves at twice a pump wavelength and a plurality of mirrors for rotating the polarization of one wave by 90 degrees to produce a wavelength-doubled beam with an increased output...
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