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3266 results about "Young's modulus" patented technology

Young's modulus, or the Young modulus, is a mechanical property that measures the stiffness of a solid material. It defines the relationship between stress (force per unit area) and strain (proportional deformation) in a material in the linear elasticity regime of a uniaxial deformation.

Ophthalmic devices, methods of use and methods of fabrication

An adaptive optic for refractive lens exchange or cataract patients. The intracapsular implant comprises an elastomeric monolith with an equilibrium memory shape that imparts to the capsular sac's periphery the natural shape of the capsule in an accommodated state. In one embodiment, the monolith carries a recessed deformable central lens portion having an ultralow modulus that allows for high accommodative amplitude in response to equatorial tensioning. In a preferred embodiment, the adaptive optic defines an anisotropic modulus with a plurality of on-axis, rotationally symmetric elastomer block portions each having a different Young's modulus. The invention further provides composite materials for enhancing deformation of lens curvature, including the use of auxetic polymeric materials and negative stiffness materials. In preferred embodiments, at least a portion of the lens is fabricated of a shape memory polymer that provides a memory shape and a temporary shape with a reduced cross-sectional shape for introduction into the patient's eye.
Owner:POWERVISION

Wafer holder, and wafer prober provided therewith

A wafer holder is provided having high rigidity and an enhanced heat-insulating effect that allow positional accuracy and heating uniformity to be improved, a chip to be rapidly heated and cooled, and the manufacturing cost to be reduced, and a wafer prober apparatus on which the wafer holder is mounted. The wafer holder of the present invention includes a chuck top for mounting a wafer, a support member for supporting the chuck top, and a stand for supporting the support member. The chuck top has a thermal conductivity K1 and a Young's modulus Y1; the support member has a thermal conductivity K2 and a Young's modulus Y2; and the stand has a thermal conductivity K3 and a Young's modulus Y3. K1>K2 and K1>K3; and Y3>Y1 and Y3>Y2.
Owner:SUMITOMO ELECTRIC IND LTD

Flexible display designed for minimal mechanical strain

InactiveUS20060132025A1Minimize and eliminate mechanical strainDischarge tube luminescnet screensElectroluminescent light sourcesDisplay deviceEngineering
The invention relates to a balanced optical display comprising a flexible substrate, an electrical optical display element comprising at least one conductive layer adjacent to the display element wherein at least one of the conductive layers has an elongation to break of less than 2 percent, and a balancing layer on the side opposite to the substrate, wherein the thickness and Young's modulus of each layers of the display is selected in such a way so that the display capable of being formed to a radius of curvature of 10 cm without damage.
Owner:EASTMAN KODAK CO

Honeycomb structure

A honeycomb structure including a plurality of porous ceramic members which are bonded through an adhesive layer, each of the porous ceramic members has a plurality of cells, which are arranged in parallel while being separated by cell walls. The cells extend in a longitudinal direction of the honeycomb structure. In the honeycomb structure, the following relationship is satisfied: 2≦B≦100 / 3×A−10 / 3  (1) where A (g / cm3) designates apparent density of the porous ceramic members, and B (GPa) designates Young's modulus of the adhesive layer.
Owner:IBIDEN CO LTD

Low profile resorbable stent

A low profile resorbable stent comprising an oriented, resorbable material, wherein said material has Young's Modulus and tensile strength in the oriented state greater than Young's modulus and tensile strength of unoriented material is disclosed. The low profile resorbable stent has a resorbable material with Young's modulus about 2-300 GPa and / or tensile strength 50-200 MPa. The resorbable material of the present invention is oriented such that the tensile strength and modulus are higher than the unoriented materials allowing for the low profile stent design. Also disclosed is a method of manufacturing a low profile resorbable stent. The method comprises providing an extrudate comprising a resorbable material, inducing molecular alignment in the extrudate to form an oriented extrudate and forming the stent from the oriented extrudate. The extrudate of resorbable material can be a sheet, tube or some other form. The sheet extrudate is stretched axially or biaxially to induce molecular alignment. The tubular extrudate is blow-molded to induce molecular alignment.
Owner:MEDTRONIC VASCULAR INC

Fiber thermoset reinforced thermoplastic structural member

In the manufacture of a structural member comprising a thermoplastic composite core with an exterior reinforcing layer, the core member is initially extruded in the shape of a profile. The profile is then contacted with reinforcing fiber and resin to form the exterior reinforcing layer. The exterior thermosetting layer is cured to form a reinforcing layer. The structural member is preferably manufactured using a pultrusion method in which a tractor device is used to provide linear movement of the profile from the extrusion head to the exterior coating operation. The fiber-reinforced thermoset is coated on the entirety of the exterior of the profile or is applied only on a portion of the profile requiring reinforcement in a defined load-bearing direction. A preferred thermoplastic core comprises a polymer-fiber composite material. A structural member of the invention has significantly improved Young's modulus providing strength for applications such as telephone poles, electric poles, electric lighting poles, boat mast or keel applications, lumber replacements, structural members used in window and door manufacture, etc.
Owner:ANDERSEN CORPORATION

Embolic protection systems having radiopaque filter mesh

A device for filtering emboli from blood flowing through a lumen defined by the walls of a vessel in a patient's body. The filter element is expandable from a collapsed configuration when the filter element is restrained to an expanded configuration when the filter element is unrestrained. The filter element includes a mesh including strands, each strand having a diameter. The mesh includes at least one radiopaque strand and at least one non-radiopaque strand, and wherein each strand has an index of wire stiffness EI, where EI is the mathematical product of the Young's modulus (E) and the second moment of area (I), and wherein the largest EI of a strand is no more than five times the smallest EI of a strand.
Owner:TYCO HEALTHCARE GRP LP

Intraocular lenses and business methods

An intraocular accommodating lens comprising a resilient polymer monolith with a peripheral component that has a Young's modulus and an equilibrium memory shape that imparts to the capsular sac's periphery the natural shape of the capsule in an accommodated state. The intraocular lens includes a central deformable optic that provides accommodated and disaccommodated shapes. The peripheral component is deformable to a disequilibrium, stressed shape in responsive to equatorial tensioning-and is capable of applying restorative forces to move the lens toward the accommodated shape from a disequilibrium disaccommodated shape. In one embodiment, the central optic portion includes a displaceable media than can be displaced by very low forces of zonular excursion, wherein the displaceable media can comprise a very low modulus polymer or an index-matched fluid.
Owner:POWERVISION

Advanced polymer wood composite

A composition in the form of pellets comprising a thermoplastic and wood fiber composite material suitable for forming structural members as a replacement for wood in the manufacture of doors and windows. The composite has less than about 10 wt % water based on pellet weight and a Young's modulus of at least about 500,000. Structural members are typically formed from the composite in an extrusion or an injection molding process.
Owner:ANDERSEN CORPORATION

Method of manufacture of high Young's modulus thermoelastic inkjet printer

A method of manufacturing a thermally actuated ink jet printhead includes the step of initially providing a wafer having a circuitry layer including the electrical circuitry necessary for the operation of a thermal actuator. A first sacrificial layer is deposited on the wafer and is etched. A Young's modulus layer is deposited to form a first layer of a thermal actuator and a portion of a nozzle chamber wall. A conductive heater material layer is provided and has a portion interconnected to the circuitry layer. A second sacrificial layer is deposited and etched in preparation for nozzle chamber walls. A nozzle wall material layer is deposited to form the walls of the nozzle chamber. The nozzle wall material layer is etched to define a nozzle port for the ejection of ink. The sacrificial layers are etched away to release the thermal actuator. The nozzle chamber walls are formed to define a fulcrum for the thermal actuator.
Owner:SILVERBROOK RES PTY LTD +1

Protected organic electronic devices and methods for making the same

The present invention relates to structures and components for protecting organic light emitting diodes from environmental elements such as moisture and oxygen. According to a first aspect of the invention, top-emitting, high-resolution, OLED structures are provided which include a metal foil substrate; a planarization layer disposed over the metal foil substrate; an OLED stack (which includes lower and upper electrodes as well as an organic region disposed between the electrodes) disposed over the planarization layer; and a multilayer barrier region disposed over the OLED stack. A second aspect of the invention is directed to flexible, top emitting OLED structures which include the following: thin substrate region (i.e., a substrate having a thickness that is less than 200 microns); an OLED stack disposed over the flexible substrate region; a transparent upper barrier region that cooperates with the flexible substrate region to encapsulate the OLED stack, thereby protecting it from outside species such as water or oxygen; and a polymeric reinforcement layer which has a Young's Modulus ranging from about 0.3 to 7 GPa, which is disposed (i) below the substrate region, (ii) above the upper barrier region (in which case it is transparent), or (iii) both below the substrate region and above the upper barrier region.
Owner:UNIVERSAL DISPLAY

Unconventional oil and gas reservoir horizontal well section full-fracture-length fracturing parameter analog method and device

InactiveCN103256046ASolve the problem that interwell information cannot be obtainedEasy accessBorehole/well accessoriesThree-dimensional spaceYoung's modulus
The invention provides an unconventional oil and gas reservoir horizontal well section full-fracture-length fracturing parameter analog method and device. The method includes the steps of determining an unconventional oil and gas reservoir horizontal well section object region; obtaining three-dimensional earthquake prestack gathered data in the object region, conducting elastic parametric inversion and obtaining a three-dimensional space elastic parameter data body, wherein the three-dimensional space elastic parameter data body comprises a rock mass poisson ratio and Young modulus; calculating a rock mass brittleness index according to the rock mass poisson ratio and the Young modulus; establishing a rock mass mechanical parameter model based on three-dimensional grid nodes according to the three-dimensional space elastic parameter data body and the rock mass brittleness index; calculating stress information on the three-dimensional grid nodes, and generating a three-dimensional stress field distribution model; conducting full- fracture-length three-dimensional numerical simulation of fractures in the fracturing process according to the rock mass mechanical parameter model and the three-dimensional stress field distribution model. The unconventional oil and gas reservoir horizontal well section full-length-fracture fracturing parameter analog method and device can improve effectiveness and accuracy of unconventional oil and gas reservoir horizontal well section full-fracture-length fracturing parameter analog, and improve the reserve utilization degree of a reservoir stratum.
Owner:PEKING UNIV

Honeycomb structure and method for manufacturing honeycomb structure

A honeycomb structure includes a ceramic block and a sealing material layer. The ceramic block includes a plurality of honeycomb fired bodies each having a large number of cells longitudinally disposed substantially in parallel with one another with a cell wall between the cells, an adhesive layer for bonding side faces of the honeycomb fired bodies, and a cavity-holding member placed between the side faces of the honeycomb fired bodies. The sealing material layer is formed on a peripheral face of the ceramic block. The cavity-holding member includes a nonflammable material having Young's modulus of at least about 0.001 GPa and at most about 0.07 GPa.
Owner:IBIDEN CO LTD

Silicon microphone with softly constrained diaphragm

A microphone sensing element and a method for making the same are disclosed. The sensing element has a diaphragm and an attached electrical lead-out arm preferably made of polysilicon that are separated by an air gap from an underlying backplate region created on a conductive silicon substrate. The backplate region has acoustic holes created by removing an oxide filling in a continuous trench that surrounds hole edges and by removing oxide to form the air gap. The diaphragm is softly constrained along its edge by an elastic element that connects to a surrounding rigid polysilicon layer. The elastic element is typically a polymer such as parylene having a Young's modulus substantially less than that of the diaphragm. First and second electrodes are connected to the diaphragm through the lead-out arm and to the substrate through polysilicon via fillings, respectively, and thereby establish a variable capacitor circuit for acoustic sensing.
Owner:SHANDONG GETTOP ACOUSTIC

Nonvolatile magnetic memory device

A nonvolatile magnetic memory device having a magnetoresistance-effect element includes: (A) a laminated structure having a recording layer in which an axis of easy magnetization is oriented in a perpendicular direction; (B) a first wiring line electrically connected to a lower part of the laminated structure; and (C) a second wiring line electrically connected to an upper part of the laminated structure, wherein a high Young's modulus region having a Young's modulus of a higher value than that of a Young's modulus of a material forming the recording layer is provided close to a side surface of the laminated structure.
Owner:SONY CORP

Bond pad structure with stress-buffering layer capping interconnection metal layer

A bond pad structure for an integrated circuit chip has a stress-buffering layer between a top interconnection level metal layer and a bond pad layer to prevent damages to the bond pad structure from wafer probing and packaging impacts. The stress-buffering layer is a conductive material having a property selected from the group consisting of Young's modulus, hardness, strength and toughness greater than the top interconnection level metal layer or the bond pad layer. For improving adhesion and bonding strength, the lower portion of the stress-buffering layer may be modified as various forms of a ring, a mesh or interlocking-grid structures embedded in a passivation layer, alternatively, the stress-buffering layer may has openings filled with the bond pad layer.
Owner:TAIWAN SEMICON MFG CO LTD

Integrated finite element and circulatory model for predicting hemodynamic effects of left ventricular impairment, resynchronization and remodeling

A computational model which integrates a complex circulatory model and a finite element to determine the dynamics of a left ventricle continuously over consecutive cardiac cycles. The model includes determining a LV pressure (plv) using a circulatory model, using a finite element model plv as input and determining a LV volume (vlv), computing a LV elastance according to: elv=plv / vlv, driving the circulatory model with the elv; and returning to determining a LV pressure and starting the next iteration, wherein the steps continue at a sufficient time resolution for a desired number of entire cardiac cycles. The dynamic Young's modulus functions are assigned to individual finite elements, resulting in a time-varying left ventricular elastance that drives the circulatory model.
Owner:BOARD OF GOVERNORS FOR HIGHER EDUCATION STATE OF RHODE ISLAND & PROVIDENCE PLANTATIONS

Method for temperature compensation in MEMS resonators with isolated regions of distinct material

MEMS resonators containing a first material and a second material to tailor the resonator's temperature coefficient of frequency (TCF). The first material has a different Young's modulus temperature coefficient than the second material. In one embodiment, the first material has a negative Young's modulus temperature coefficient and the second material has a positive Young's modulus temperature coefficient. In one such embodiment, the first material is a semiconductor and the second material is a dielectric. In a further embodiment, the quantity and location of the second material in the resonator is tailored to meet the resonator TCF specifications for a particular application. In an embodiment, the second material is isolated to a region of the resonator proximate to a point of maximum stress within the resonator. In a particular embodiment, the resonator includes a first material with a trench containing the second material. In a specific embodiment, the shape, dimensions, location and arrangement of a second material comprising silicon dioxide is tailored so that the resonator comprising a first material of SiGe will have a TCF of a much lower magnitude than that of either a homogeneous SiGe or homogeneous silicon dioxide resonator.
Owner:SEMICON MFG INT (SHANGHAI) CORP

Method for calibrating a model of in-situ formation stress distribution

A method for producing a substantially calibrated numerical model, which can be used for calculating a stress on any point in a formation, accounts for a formation's geologic history using at least one virtual formation condition to effectively “create” the present-day, virgin stress distribution that correlates, within acceptable deviation limits, to actual field stress measurement data obtained for the formation. A virtual formation condition may describe an elastic rock property (e.g., Poisson ratio, Young's modulus), a plastic rock property (e.g., friction angle, cohesion) and / or a geologic process (e.g., tectonics, erosion) considered pertinent to developing a stratigraphic model suitable for performing the desired stress analysis of the formation.
Owner:EXXONMOBIL UPSTREAM RES CO

Piezoelectric vibrator

A piezoelectric vibrator having excellent shock resistance and high reliability is offered. The centers of first and second piezoelectric vibrating plates are supported by pillars on a main surface of an enclosure and nearly or substantially parallel to the main surface of the enclosure. Spacers having a Young's modulus of less than 2 GPa are mounted on both end sides of the second piezoelectric vibrating plate to prevent contact between the vibrating plates, thus preventing damage. Other spacers are mounted on the main surface of the enclosure in positions corresponding to the first-mentioned spacers to prevent contact with the main surface of the enclosure, thus preventing damage to the second piezoelectric vibrating plate.
Owner:TAIYO YUDEN KK
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