421results about How to "Reduce manufacturing complexity" patented technology

The present invention Is a fabrication method for a short-channel Schottky-barrier field-effect transistor device. The method of the present invention includes introducing channel dopants into a semiconductor substrate such that the dopant concentration varies in the vertical direction and is generally constant in the lateral direction. A gate electrode is formed on the semiconductor substrate, and source and drain electrodes are formed on the substrate to form a Schottky or Schottky-like contact to the substrate.

A dispensing device comprises a sealed package including a collapsible compartment and an administration assembly. The administration assembly includes a delivery device in fluid communication with a substance within the sealed package. A compression panel collapses the compartment to dispense a substance through the delivery device. Embodiments for a single use dispenser for hypodermic administration of a unit dose of a therapeutic fluid, as well as therapeutic packages and methods for administering therapeutic substances to subjects, are also provided.

A device having touch sensor input functionality, comprises first and second control electrodes (40,42) lying in a common plane. The device is operable in at least two modes, comprising: a first mode in which the light transmission characteristics are altered by controlling the movement of the charged particles under the influence of control signals applied to the first and second control electrodes; and a second mode in which the first and second control electrodes are coupled to a capacitance sensing means, for detecting a change in capacitance caused by the proximity of an object to be detected.

A radio frequency antenna system and high-speed digital data link are disclosed to, among other things, reduce electromagnetic interference (“EMI”) at relatively high data rates while reducing the manufacturing complexities associated with conventional data links. In one embodiment, a radio frequency (“RF”) antenna system includes an antenna and an RF radio coupled to the antenna for receiving wireless RF signals. In particular, the RF radio is configured to digitize RF signals at a fixed data rate to form digitized data signals and to apply the digitized data signals at a variable data rate to a high-speed digital link. The variable data rate distributes the signal energy of the digitized data signals over one or more bands of frequencies, thereby beneficially altering an EMI spectral profile describing emissions that develop as the digitized data signals are transported through a channel.

An RFID tag may include an antenna substrate comprising a conductive layer etched or deposited to form an antenna, and a circuit substrate comprising a conductive layer etched or deposited to form a circuit, the antenna electro-magnetically coupled to the circuit. An RFID tag may be formed from an insert substrate comprising an insulative layer between two conductive layers, one of the conductive layers etched to form an antenna and the other conductive layer etched to form a circuit. The insert substrate may be received in an envelope formed by a label substrate, which may carry a pressure sensitive adhesive.

A method and system senses the attitude of an accelerating object by measuring acceleration with accelerometers in three orthogonal axes and measuring angular rate with angular rate sensors disposed about each such axis to compute attitude of the object accurately relative to a vertical axis. A processor updates a quaternion representation of attitude based upon the angular rate of the object, and a corrective rate signal is determined from level frame acceleration as a reference for a Kalman filter in calculating the attitude of the object.

The invention relates to slickened or siliconized flame resistant fiber blends that are well suited for use in mattresses, boxsprings, upholstered furniture, fiber-filled bed clothing, transportation seating or any end use application where a soft materials are desired for flame resistant (FR) purposes. Some of the fibers in the blend are slickened. The FR fibers incorporated into these blends include both char forming FR fibers and oxygen depleting FR fibers. FR char-forming fibers are those which exhibit little shrinkage when exposed to direct flame and are not spun from polymers manufactured with halogenated monomers. Oxygen depleting FR fibers are spun from polymers manufactured with halogenated monomers.

Manufacturing a semiconductor device involves forming (200) a sacrificial layer where a micro cavity is to be located, forming (210) a metal layer of thickness greater than 1 micron over the sacrificial layer, forming (220) a porous layer from the metal layer, the porous layer having pores of length greater than ten times their breadth, and having a breadth in the range 10 nm-500 nanometers. The pores can be created by anodising, electrodeposition or dealloying. Then the sacrificial layer can be removed (230) through the porous layer, to form the micro cavity, and pores can be sealed (240). Encapsulating MEMS devices with a porous layer can reduce costs by avoiding using photolithography for shaping the access holes since the sacrificial layer is removed through the porous membrane.

A window-type ball grid array (WBGA) semiconductor package with a lead frame as a chip carrier and a method for fabricating the same are provided. The lead frame has a plurality of leads encompassing an opening, each lead having an upper surface and an opposing lower surface. A resin material is pre-molded on the lower surfaces of the leads, with wire-bonding portions and ball-implanting portions defined on the leads being exposed. At least a chip is mounted on the upper surfaces of the leads and covers the opening, allowing the chip to be electrically connected to the wire-bonding portions of the leads by a plurality of bonding wires via the opening. Then, an encapsulant is formed to encapsulate the chip and fill into the opening for encapsulating the bonding wires. Finally, solder balls are implanted on the ball-implanting portions of the leads to complete fabrication of the semiconductor package.

This application describes designs, implementations, and techniques for controlling propagation mode or modes of light in a common optical path, which may include one or more waveguides, to sense a sample.

The illumination device includes a plurality of light source units and a plurality of optical concentrators facing the plurality of light source units and each having an entry surface, lateral surfaces, and an output surface. A color synthesizing unit synthesizes light emitted by the plurality of optical concentrators and includes two intersecting dichroic filters. A relay optical system transmits light synthesized by the color synthesizing unit to an illuminated surface.

A thermosiphon system includes a condenser, an evaporator, and a condensate line fluidically coupling the condenser to the evaporator. The condensate line can be a tube with parallel passages can be used to carry the liquid condensate from the condenser to the evaporator and to carry the vapor from the evaporator to the condenser. The evaporator can be integrated into the tube. The condenser can be constructed with an angled core. The entire assembly can be constructed using a single material, e.g., aluminum, and can be brazed together in a single brazing operation.

A variable-nozzle turbocharger includes a cartridge containing a variable vane mechanism connected between the center housing and the turbine housing. The cartridge comprises an annular nozzle ring supporting an array of rotatable vanes, an insert having a tubular portion sealingly received into the bore of the turbine housing and having a nozzle portion extending radially out from one end of the tubular portion and being axially spaced from the nozzle ring with the vanes therebetween, a plurality of spacers connected between the nozzle portion of the insert and the nozzle ring, and an annular retainer ring fastened to the center housing so as to capture the nozzle ring between the retainer ring and the center housing. The retainer ring is formed as a separate part from the insert ring and is mechanically and thermally decoupled from the insert.

The invention provides a resonant type Fabry-Perot optical fiber sensor which comprises a sensor body and a through hole penetrating through the sensor body. One end of the through hole is provided with a graphene thin film for sensing the to-be-detected air pressure in an attached mode, and the other end of the through hole is provided with transmission optical fibers which penetrate through the through hole and are matched with the through hole. According to the resonant type Fabry-Perot optical fiber sensor, the air pressure of gas is calculated in the mode that graphene thin film resonant frequency changes are caused by damp of the gas to the graphene thin film, so that a closed Fabry-Perot cavity is not needed, and the manufacturing difficulty is reduced; the the original measurement thin film deformation quantity is replaced by resonance to further conduct air pressure measurement, and thin film material creeping caused by repeated film deformation is effectively reduced; digital frequency signals after probe laser detection are output after the sensor conducts detection, and result analysis can be conveniently carried out compared with light wave signals of an interferometric sensor. Stimulation and detection are carried out through the single transmission optical fibers, and long-distance air pressure measurement can be achieved, and the applicability of the sensor is greatly improved.

The invention relates to a digital loudspeaker drive method and a device based on quaternary code dynamic mismatch reshaping. The method comprises the steps of (1) conducting input format conversion, (2) conducting multi-bit sigma to delta modulation, (3) conducting thermometer code conversion, (4) conducting dynamic mismatch reshaping processing, (5) conducting channel data combination and mapping coding, (6) controlling metal-oxide-semiconductor field effect transistor (MOSFET) pipe of a full-bridge power amplifier network to conduct opening and closing status switching, and driving a digitalized loudspeaker load to produce sound. The device comprises a sound source (1), a digital format converter (2), a multi-bit sigma to delta modulator (3), a thermometer coder (4), a dynamic mismatch reshaper (5), a channel data combiner (6), a mapping coder (7), a multi-channel digital amplifier (8) and the digitalized loudspeaker load (9). The units are sequentially connected in order. According to the digital loudspeaker drive method and the device based on quaternary code dynamic mismatch reshaping, use efficiency of an amplifier pipe and the load is improved, development periods and hardware implementation cost are saved, and good immunity is provided for frequency response deviation of digital channels.

A display driving circuit. The circuit comprises a first electrode from which a data signal is output, a second electrode from which a scan signal is output, a capacitor having a first and second end with a voltage difference therebetween, a light emitting diode having an anode and cathode coupled to a first power supply providing a first voltage(Vss), a first switch having a first end coupled to the first electrode to receive the data signal and a second end coupled to the first end of the capacitor, a second switch having a first end coupled to a second power supply providing a second voltage(VDD) and a second end coupled to the anode of the light emitting diode, and a third switch having a first end coupled to a third power supply providing a third voltage(Vref) and a second end coupled to the second end of the capacitor.

The invention provides an enhanced graphene waveguide photodetector for an integrally-distributed Bragg reflection grating. The photodetector is manufactured on an SOI substrate and comprises an optical waveguide, an insulating transparent thin film, a graphene thin film, a first metal electrode, a second metal electrode and a gate electrode window. The optical waveguide is formed on the substrate in the longitudinal direction. The insulating transparent thin film is evenly manufactured on the substrate and covers the optical waveguide. The graphene thin film is manufactured on the insulating transparent thin film and covers the middle of the strip-shaped optical waveguide. The first metal electrode is provided with a contact end and a strip-shaped electrode end, the contact end of the first metal electrode is manufactured on one side of the insulating transparent thin film, and the electrode end of the first metal electrode is longitudinally manufactured on the graphene thin film. The second metal electrode is provided with a contact end and a strip-shaped electrode end, the contact end of the second metal electrode is manufactured on one side of the insulating transparent thin film, and the electrode end of the second metal electrode is longitudinally manufactured on the graphene thin film. The gate electrode window is formed on the insulating transparent thin film and located on any exposed surface of the insulating transparent thin film. The graphene photodetector is integrated with the waveguide, a resonant cavity and the like, and the defect of low optical responsivity is overcome.

A wavelength tunable silicon-on-insulator (SOI) laser comprising: a laser cavity including: a semiconductor gain medium having a front end and a back end; and a phase-tunable waveguide platform coupled to the front end of the semiconductor gain medium; wherein the phase-tunable waveguide platform includes a first Distributed Bragg Reflector (DBR) and a second Distributed Bragg Reflector (DBR); at least one of the Distributed Bragg Reflectors having a comb reflectance spectrum; and wherein a mirror of the laser cavity is located at the back end of the semiconductor gain medium.

A compact optical transceiver is provided in which a substrate provides for an alignment surface for optical fibers and a lens assembly provides the necessary optical paths for coupling to photodiode and photodetector structures. Appropriate electrical connections on the substrate enable the substrate to be directly connected to a printed circuit board, grid array socket, and the like.

Methods to etch features in a substrate with a multi-layered double patterning mask. The multi-layered double patterning mask includes a carbonaceous mask layer, a first cap layer on the carbonaceous mask layer and a second cap layer on the first cap layer. After forming the multi-layered mask, a first lithographically defined pattern is etched into the second cap layer. A double pattern that is a composition of the first lithographically defined pattern etched in the second cap layer and a second lithographically defined pattern is then etched into the first cap layer and the carbonaceous mask layer. The double pattern formed in the carbonaceous mask layer is then transferred to a substrate layer and any portion of the multi-layered mask remaining is then removed.

A sensor system for determining a parameter of a fluid medium, e.g., an intake air mass flowing through a channel, includes at least one sensor chip situated in the channel for determining the parameter, which sensor chip is accommodated in a sensor carrier which (i) protrudes into the channel and (ii) has a leading edge situated transverse to the flow of the fluid medium. At least one vortex generator is provided, at least in the region of the leading edge, and configured for forming secondary flows in the flowing fluid medium in the region of the sensor carrier, for avoiding or reducing the entry of particles. The secondary flows extend in a plane essentially perpendicular to the main flow direction of the fluid medium, e.g., facing away from the sensor area.

A light emitting stacked structure including a plurality of epitaxial sub-units disposed one over another, each epitaxial sub-unit configured to emit colored light having different wavelength band from each other, and a common electrode disposed between and connected to adjacent epitaxial sub-units, in which light emitting regions of the epitaxial sub-units overlap each other.

The present invention is directed to an air-cooled radiographic apparatus, and its method of manufacture, that utilizes a single integral housing for providing an evacuated envelope for an anode and cathode assembly. The integral housing is preferably formed from a substrate material that has a radiation shielding layer comprising a powder metal that is deposited with a plasma spray process. The powder metal includes, for example, tungsten and iron, so that the radiation shield layer provides sufficient radiation blocking and heat transfer characteristics such that an additional external housing is not required. In one alternative embodiment, the integral housing is composed of a solidified, integrated mixture of metallic powders that function together as both the integral housing wall and the radiation shielding. In another alternative embodiment, chromium is intermixed into the mixture of metallic powders to form a thermally emissive surface upon firing the housing in a wet hydrogen environment.

A digital pulse-width-modulation (PWM) generator comprising:an n bit digital magnitude comparator having first and second n bit inputs and an output indicative of the relative values of the signals applied at the first and second inputs;a first n bit digital up / down counter having a count direction input coupled to receive a sign bit of a digital unary input signal, an n bit parallel binary count output connected to the first n bit input of the magnitude comparator, and a clock input;a second n bit counter having a clock input coupled to receive a constant rate clock signal and an n bit parallel binary count output connected to the second n bit input of the magnitude comparator;an AND gate having a first input coupled to receive the constant rate clock signal in frequency divided form and a second input coupled to receive a magnitude portion of the digital unary input signal, and further having an output connected to the clock input of the first counter; andwherein the comparator continually generates an output signal indicative of the relative magnitudes of the counts of the first and second counters, whereby said output signal is a PWM output signal with an average value representing a ramp voltage having a slope determined by magnitude portion of the digital unary input signal with a direction of a slope of the output signal being determined by the polarity of the sign bit.

A link assembly forming a 6 bar linkage is integrally combined with a spring having a laterally coiled strand to form a hinge that is particularly well adapted to be installed in a small footprint. Such a unit is well adapted for installation within a peripheral channel of a vehicle body opening and to prop the closure in its open position. The present invention also provides a method for reducing packaging footprint of a vehicle closure hinge by integrating the 6 bar linkage with the laterally coiled strand, and selecting a strand shaping to reduce radial dimension of the coil and the coil cross-section while maximizing the radial dimension of material in the strand.

A thrust reverser assembly and operation suitable for high-bypass turbofan engines. The thrust reverser assembly includes a translating cowl mounted to a nacelle of an engine and adapted to translate in an aft direction of the engine. The translating cowl has a radially inner wall that defines a radially outer flow surface of a bypass duct of the engine. The thrust reverser assembly includes blocker doors axially guided adjacent first ends thereof by a fixed structure and pivotally and slidably connected along lengths thereof to the inner wall of the translating cowl so that translation of the translating cowl in the aft direction causes each blocker door to move from a stowed position to a deployed position as a result of the blocker door sliding at its first end relative to the fixed structure and sliding along its length relative to the inner wall of the translating cowl.