105results about How to "Improve lifetime" patented technology

A phosphor screen for image forming including phosphor material being excitable by light in a wavelength λ1. The phosphor screen receives an optical image from an image forming optical system and produces the optical image at a second wavelength λ2. The phosphor screen includes a phosphor layer comprising the phosphor material. A short-pass reflective coating is positioned on a first side of the phosphor layer. The short-pass reflective coating transmits the wavelength λ1 and reflects the wavelength λ2. A long-pass reflective coating is positioned on a second side of the phosphor layer. The long-pass reflective coating transmits the wavelength λ2 and reflects the wavelength λ1. A first substrate is positioned over the short-pass reflective coating. The first substrate is formed of optically clear and thermal conductive material. A second substrate is positioned over the long-pass reflective coating. The second substrate is formed of long-pass absorptive optical filter material that transmits the wavelength λ2 and absorbs wavelength λ1 from ambient light to prevent the phosphor layer from being excited by the ambient light. The phosphor screen may alternatively be used for a direct-view visual display apparatus. These principles can also be utilized for backlighting and general illumination applications.

A method of operating a memory system comprises determining whether a write request from a host is a random write request, and as a consequence of determining that the write request is a random write request, programming a lower page of a selected word line of a nonvolatile memory device with restorable data of the nonvolatile memory device, and programming an upper page of the selected word line with write data corresponding to the write request after programming the lower page.

Provided is a data storage device including two or more data storage areas including may have two or more (heterogeneous) types of nonvolatile memory cells. At least one of the data storage areas includes a plurality of memory blocks that are sequentially selected, and metadata are stored in the currently selected memory block. The memory blocks can be sequentially used and metadata can be stored in a uniformly-distributed manner throughout the data storage device. Therefore, separate merging and wear-leveling operations are unnecessary. Thus, it is possible to improve the lifetime and writing performance of a data storage device having two or more heterogeneous nonvolatile memories.

An electroluminescent device includes: first to third pixel regions; a first electrode in each of the first to third pixel regions, wherein the first electrode of the third pixel region has a first thickness, the first electrode of the first pixel region has a second thickness less than the first thickness, and the first electrode of the second pixel region has a third thickness less than the second thickness; a second electrode in each of the first to third pixel regions; at least two electroluminescent units in each of the first and third pixel regions and disposed between the first electrode and second electrode, wherein one of the at least two electroluminescent units includes a blue light emitting layer and the other of the at least two electroluminescent units include a red / green light emitting layer; and a charge generation layer disposed between the at least two electroluminescent units.

A technique improving the performance and extending the lifetime of an ion source with gas dilution is disclosed. In one particular exemplary embodiment, the technique may be realized as a method for improving performance and extending lifetime of an ion source in an ion implanter with gas dilution. The method may comprise releasing a predetermined amount of dopant gas into an ion source chamber, and releasing a predetermined amount of dilutant gas into the ion source chamber. The dilutant gas may comprise a mixture of a xenon-containing gas and a hydrogen-containing gas for diluting the dopant gas to improve the performance and extend the lifetime of the ion source.

Method and apparatus for storing records in non-uniform access memory. In various embodiments, the placement of records is localized in one or more regions of the memory. This can be accomplished utilizing different ordered lists of hash functions to preferentially map records to different regions of the memory to achieve one or more performance characteristics or to account for differences in the underlying memory technologies. For example, one ordered list of hash functions may localize the data for more rapid access. Another list of hash functions may localize the data that is expected to have a relatively short lifetime. Localizing such data may significantly improve the erasure performance and / or memory lifetime, e.g., by concentrating the obsolete data elements in one location. Thus, the two or more lists of ordered hash functions may improve one or more of access latency, memory lifetime, and / or operation rate.

The invention is directed in a first aspect to electron-conducting porous compositions comprising an organic polymer matrix doped with nitrogen atoms and having elemental sulfur dispersed therein, particularly such compositions having an ordered framework structure. The invention is also directed to composites of such S / N-doped electron-conducting porous aromatic framework (PAF) compositions, or composites of an S / N-doped mesoporous carbon composition, which includes the S / N-doped composition in admixture with a binder, and optionally, conductive carbon. The invention is further directed to cathodes for a lithium-sulfur battery in which such composites are incorporated.

Provided are a cooling device coated with carbon nanotubes and method of manufacturing the same. Carbon nanotubes are dispersively coated on a surface of the cooling device that radiates generated by a predetermined apparatus or component through thermal exchange. Thus, a carbon nanotube structure is formed so that the cooling device can improve in a thermal radiation characteristic and become small-sized. As a result, electronic devices can be downscaled and heat generated by a highly integrated electronic circuit chip can be effectively radiated, thus increasing lifetime and performance of an operating circuit.

This invention relates generally to short-wavelength radiation from laser-produced and discharged produced plasmas, and more particularly to efficient systems and methods for obtaining short-wavelength radiation.

A positive active material, a positive electrode and a lithium battery containing the positive active material, and a method of manufacturing the positive active material are disclosed. The positive active material includes: a positive active material core particle for intercalating and deintercalating lithium ions; and a coating layer at least partially surrounding the positive active material core particle and including a ceramic composite represented by Formula 1.Li7+aLa3−bZr2−cMdO12+e  Formula 1In Formula 1, M comprises at least one selected from aluminum (Al), titanium (Ti), scandium (Sc), vanadium (V), yttrium (Y), niobium (Nb), hafnium (Hf), tantalum (Ta), silicon (Si), gallium (Ga), and germanium (Ge), and −1≦a≦1, 0≦b≦2, 0≦c≦2, 0≦d≦2, and 0≦e≦1.

It is an object of the present invention to provide a copper-based bonding wire whose material cost is low, having excellent ball bondability, reliability in a heat cycle test or reflow test, and storage life, enabling an application to thinning of a wire used for fine pitch connection. The bonding wire includes a core material having copper as a main component and an outer layer which is provided on the core material and contains a metal M and copper, in which the metal M differs from the core material in one or both of components and composition. The outer layer is 0.021 to 0.12 μm in thickness.

Provided are a compound represented by Formula 1, and an organic electric element comprising a first electrode, a second electrode, and an organic material layer formed between the first electrode and the second electrode, wherein the organic material layer comprised the compound represented by Formula 1, and the driving voltage of an organic electronic device can be lowered, and the luminous efficiency, color purity and life time of an organic electronic device can be improved by comprising the compound represented by Formula 1 in the organic material layer.

A jelly roll electrode assembly, including a ceramic separator instead of a film separator and a secondary battery using the assembly, can be easily wound by forming a long non-coating portion of plate instead of the film separator to prevent cross-winding of the electrode assembly and the mandrel due to a friction by separating the wound electrode assembly from the mandrel, and to improve reliability. The jelly roll electrode assembly, including a positive electrode plate and an negative electrode plate, includes: a ceramic layer coated on at least one of the positive electrode plate or the negative electrode plate to prevent an electrical short between the positive electrode and negative electrode plates; a non-coating portion of the positive electrode and negative electrode plates, having no active material coated thereon, and an extended contact part, of the same electrode material as the non-coating portion, extending from one end of the non-coating portion of the positive electrode plate or the negative electrode plate to contact a mandrel during winding of the assembly.

A semiconductor surface light-emitting element of this invention is provided with a photonic crystal layer 6 obtained by periodically forming a plurality of holes H in a basic layer 6A comprised of a first compound semiconductor of the zinc blende structure and growing embedded regions 6B comprised of a second compound semiconductor of the zinc blende structure, in the holes H, and an active layer 4 to supply light to the photonic crystal layer 6, in which a principal surface of the basic layer 6A is a (001) plane and in which side faces of each hole H have at least three different {100} facets.

Embodiments of the present invention provide microelectromechanical systems (MEMS) switching methods and apparatus having improved performance and lifetime as compared to conventional MEMS switches. In some embodiments, a MEMS switch may include a resilient contact element comprising a beam and a tip configured to wipe a contact surface; and a MEMS actuator having an open position that maintains the tip and the contact surface in a spaced apart relation and a closed position that brings the tip into contact with the contact surface, wherein the resilient contact element and the MEMS actuator are disposed on a substrate and are movable in a plane substantially parallel to the substrate. In some embodiments, various contact elements are provided for the MEMS switch. In some embodiments, various actuators are provided for control of the operation of the MEMS switch.

Provided are a compound represented by Formula 1, and an organic electric element comprising a first electrode, a second electrode, and an organic material layer formed between the first electrode and the second electrode, wherein the organic material layer comprised the compound represented by Formula 1, and the driving voltage of an organic electronic device can be lowered, and the luminous efficiency, color purity and life time of an organic electronic device can be improved by comprising the compound represented by Formula 1 in the organic material layer.

Provided are a compound represented by Formula 1, and an organic electric element comprising a first electrode, a second electrode, and an organic material layer formed between the first electrode and the second electrode, wherein the organic material layer comprised the compound represented by Formula 1, and the driving voltage of an organic electronic device can be lowered, and the luminous efficiency, color purity and life time of an organic electronic device can be improved by comprising the compound represented by Formula 1 in the organic material layer.

A structure of lithium-ion battery module comprises a battery case, containing one or more flexible packaging polymer lithium-ion battery cells, at of which top a connecting conductor is arranged to connect them in series and / or parallel to form a battery pack, positive and negative poles of the battery pack are mounted on the connecting conductor. The structure further comprises a battery cover plate welded on the open end of the battery case to package the battery pack into the battery case, and the positive and negative pole terminals of the battery module are arranged on the battery cover plate and welded to the positive and negative poles. The plate is provided with one or more through hole, through which the air in the battery case is evacuated and the inert gas is injected, after that a steel ball is clamped into each through hole to seal the battery case.

Provided are a compound capable of lowering a driving voltage, enhancing light emitting efficiency and thermal resistance, and improving lifespan and color purity of the element, an organic element using the same, and an electric device for the same.

A membrane electrode assembly for an electrochemical cell assembly is provided with a modified catalyst layout. The modified catalyst layout improves reactant fluid flow along the membrane electrode assembly, reduces wear on the membrane electrode assembly and improves electrochemical cell efficiency during operation.

A technique improving performance and lifetime of indirectly heated cathode ion sources is disclosed. In one particular exemplary embodiment, the technique may be realized as a method for improving performance and lifetime of an indirectly heated cathode (IHC) ion source in an ion implanter. The method may comprise maintaining an arc chamber of the IHC ion source under vacuum during a maintenance of the ion implanter, wherein no gas is supplied to the arc chamber. The method may also comprise heating a cathode of the IHC ion source by supplying a filament with a current. The method may further comprise biasing the cathode with respect to the filament at a current level of 0.5-5 A without biasing the arc chamber with respect to the cathode. The method additionally comprise keeping a source magnet from producing a magnetic field inside the arc chamber.

A drawer assembly for a consumer appliance is provided. The drawer assembly includes an anti-racking system for minimizing misalignment of an appliance drawer. More particularly, the present subject matter provides a drawer slide assembly for a drawer having some horizontal flexibility. The drawer slide assembly may have a pinion gear and connecting rod assembly that minimizes racking of the appliance drawer as it is moved into and out an appliance chamber. The appliance drawer may be attached to the appliance chamber by a ball and joint pinion gear configuration that adds another degree of freedom to the anti-racking system in order to reduce stress on the pinion gear. By adding an additional degree of freedom to the pinion gear and reducing the imposed stresses applied to the pinion gear, the performance and lifetime of the drawer assembly may be improved.

A negative active material and a lithium battery are provided. The negative active material includes a composite core, and a coating layer formed on at least part of the composite core. The composite core includes a carbonaceous base and a metal / metalloid nanostructure disposed on the carbonaceous base. The coating layer includes a metal oxide coating layer and an amorphous carbonaceous coating layer.

Heat treatment of conductive polymer buffer layers results in increased resistance and thus improved interpixel isolation in polymer light emitting device arrays. Heat treatment of luminescent layers results in improved lifetimes for polymer light emitting device arrays.

There are provided a rotational shaft provided in a spindle, a wheel mounting cylinder which is mounted through wheel support bearings on an outer peripheral side of the spindle, and a planetary gear reduction mechanism for decelerating rotation of the rotational shaft, which is transmitted to the wheel mounting cylinder. A carrier forming a part of the planetary gear reduction mechanism is mounted in a non-rotating state on an open end side of the spindle. A cylindrical coupling member is provided between an open side of the spindle and the carrier. An oil guide path is formed between a one-side end surface of each of planetary gears and an opposing surface portion of a cylindrical coupling member for guiding lubricant oil ejected from a meshing part therebetween to a planetary gear bearing.

A lithium-free mixed titanium and niobium oxide, including at least one trivalent metal M, and having a molar ratio Nb / Ti greater than 2, said oxide being selected from the group including the material of formula (I) and the material of formula (II):MxTi1−2xNb2+xO7±δ  (I) where 0<x≦0.20; −0.3≦δ≦0.3;MxTi2−2xNb10+xO29±δ  (II) where 0<x≦0.40; −0.3≦δ≦0.3.