45results about How to "Reduce effective width" patented technology

An optical coupling arrangement has a first transition region having a plurality of first segmented waveguides and a plurality of transverse segments of alternating indices of refraction with at least some of the transverse segments traversing the first segmented waveguides. The first segmented waveguides are formed by core segments in some of the transverse segments. The arrangement may also have a second transition region having a plurality of second segmented waveguides each aligned with a respective one of the first segmented waveguides. The arrangement is manufactured with a high production yield and is used in an optical coupling device for combining / splitting optical signals to reduce the insertion loss. The optical coupling device is also used in other devices such as Mach-Zehnder devices and arrayed waveguide grating demultiplexers / multiplexers.

The invention provides a bidirectional drawing machine for polymide films; the bidirectional drawing machine comprises a needle plate type chain mechanism, a drawing machine box body, a vertical chain and transmission mechanism, an automatic expanding mechanism, an automatic closed loop heating system and an inner circulating air bellows, wherein the vertical chain and transmission mechanism comprises a main driving motor, a belt pulley, a main shaft, a guide key and a chain wheel; the automatic expanding mechanism comprises a speed reducing motor, a small chain wheel, a breadth adjusting screw rod, a nut and a sliding seat; the electric heating system comprises an embedded type electric heater, a temperature sensor, a temperature controller and an upper computer; by adopting the bidirectional drawing machine, the films are uniformly stressed during stretching and have consistent thickness and high quality, the space of a heating area is reduced, the heating power is minimized, the electric energy is saved, and the exhaust emission is reduced; and therefore, the bidirectional drawing machine is more environmental-friendly.

A support structure for supporting and tilting an oversized cargo to reduce the effective width of the cargo. The structure comprises a bolster frame having a base and a stanchion connected to the base. The stanchion extends upwardly from a lower end connected to the base to an upper end opposite the lower end. A cylindrical roller supported is by the upper end of the stanchion for rotational movement relative to the stanchion about a rotational axis. The cylindrical roller is also supported by the stanchion for pivotal movement relative to the stanchion such that the rotational axis pivots relative to the stanchion. The bolster frame also includes a bearing pad connected to the base. The cylindrical roller and the bearing pad at least partially support the oversized cargo. The support structure may be mounted on a trailer for transporting oversized cargo, such as concrete double-tees.

A support structure for supporting and tilting an oversized cargo to reduce the effective width of the cargo. The structure comprises a bolster frame having a base and a stanchion connected to the base. The stanchion extends upwardly from a lower end connected to the base to an upper end opposite the lower end. A cylindrical roller supported is by the upper end of the stanchion for rotational movement relative to the stanchion about a rotational axis. The cylindrical roller is also supported by the stanchion for pivotal movement relative to the stanchion such that the rotational axis pivots relative to the stanchion. The bolster frame also includes a bearing pad connected to the base. The cylindrical roller and the bearing pad at least partially support the oversized cargo. The support structure may be mounted on a trailer for transporting oversized cargo, such as concrete double-tees.

With a method for manufacturing a bendable tube, which is preferably envisaged for an endoscopic instrument, first a tube is separated into several tube sections in a manner such that adjacent tube sections engage into one another with a positive fit in the axis direction of the tube. After the separation of the tube into several tube sections, one envisages peripherally arranging means for providing a positive fit transversely to the axis direction of the tube, on the regions of the tube sections, which are situated in engagement with one another.

The invention relates to an MOS (Metal Oxide Semiconductor) device for ESD (Electrostatic Discharge) protection of an integrated circuit chip, belonging to the technical field of electronics. On the premise that the size of the device is not increased and more chip area is not required to be consumed, substrate resistance between a source region and a substrate contact region is increased by adding a plurality of strip-shaped well regions which are in parallel with the transverse direction of the device in a substrate region below a position between the source region and the substrate contact region, so that the ESD resisting ability of the device is improved; besides, the size of the substrate resistance of the device can be adjusted and the problem of poor starting uniformity of the device can be solved by adjusting the quantity and the width of the strip-shaped well regions and the mutual distances among the strip-shaped well regions, so that the secondary breakdown current of the device is further improved; meanwhile, the manufacturing process of the MOS device is compatible with the standard CMOS process. In conclusion, the MOS device for the ESD protection of the integrated circuit chip provided by the invention has stronger ESD resisting ability due to the increase of the substrate resistance and the production cost of the device is not increased because the size of the device is not increased.

The invention discloses a current sampling circuit achieved through LDMOS devices. A sampling tube and a sampled tube are both the LDMOS devices, the sampling tube is arranged in the middle area of the sampled tube, and the effective width of a source region of the sampling tube is determined by the contact width of an N+ region of the resource region and a grid electrode. A voltage resisting buffer layer is arranged in a drift region of a drain region of the sampling tube, the voltage resisting buffer layer can define the effective drain region drift region aligned to the effective part of the source region, and meanwhile the surrounding range of the whole drain region drift region is not reduced. The sampling ratio of the circuit can be improved by reducing the effective width of the source region, and due to the fact that the effective drain region drift region is aligned to the N+ region of the source region, parasitic resistance between the source region and the drain region of the sampling tube and parasitic resistance between the source region and the drain region of the sampled tube are in proportion, and the stability of the sampling ratio can be improved. The matching degree and stability of the sampling tube and the sampled tube can be improved, the occupied area of the circuit can be reduced, and the integration degree can be improved.

A MEMS variable optical attenuator (VOA) chip includes a frame having a planar surface, a micro-electric actuator with a movable optical shutter arranged with respect to the planar surface of the frame, where the VOA is actuated by thermal expansion. The micro-electric actuator comprises semiconductor conductors (“wires”) that can be moved, upon applying an electrical current, by thermal expansion. In one embodiment, the MEMS VOA chip is configured in a multiple wire arrangement that restricts the shutter movement in a plane.

A support structure for supporting and tilting an oversized cargo to reduce the effective width of the cargo. The structure comprises a frame having a base and a stanchion connected to the base. A rocker arm is pivotally coupled to the stanchion to pivot about a pivot axis. The arm includes a first and second end disposed opposite one another. The arm has a center of gravity disposed between the first end and the pivot axis and that biases the arm to pivot in a first pivotal direction. First and second brackets are positioned near the first and second ends of the arm for receiving the cargo. The cargo has a center of gravity disposed between the pivot axis and the second end that causes the arm to pivot in a second pivotal direction opposite the first pivotal direction.

A mold for sequentially curing sections of a belt includes two end zones, a center zone, and transition zones between each end zone and the center zone. The mold is heated and / or cooled by heat transfer fluid flowing from intake manifolds through heat transfer cavities. The intake manifolds are preferably arranged perpendicular to the mold length. In the end zones and in the center zone, the heat transfer cavities are arranged substantially parallel to the length of the mold. The arrangement of the heat transfer cavities provides for a more controlled cure of the belt by allowing the center zone to maintain a consistent temperature throughout the center zone while allowing a cooler consistent temperature to be maintained in the end zones. The transition zones allow a steep temperature gradient from the cooler end zones to the hotter center zone. Heat transfer rates are adjustable without modification to the body of the mold.

A first transparent substrate of a parallax barrier shutter panel includes, in a display area, lower-layer transparent electrodes disposed below an interlayer insulation film and upper-layer transparent electrodes disposed on the interlayer insulation film as vertically extending first transparent electrodes. The first transparent substrate includes, in an input-side connection area adjacent to the display area, a wire for inputting a barrier control signal that is output from a drive IC into the first transparent electrodes. The first transparent substrate includes, in a counter-input-side connection area adjacent to the display area on an opposite side to the input-side connection area with respect to the display area, a common wire for connecting first transparent electrodes that receive input of the same barrier control signal.

A rotor for an electric machine includes a rotor core having a plurality of rotor sheets (RS1), each of the plurality of rotor sheets including a plurality of flux guide sections, each of the plurality of flux guide sections having a plurality of flux paths and a plurality of flux barriers. The plurality of flux guide sections having a first flux guide section in which a first number of the plurality of flux barriers has a bridge interrupting the flux barrier, and a second flux guide section in which a second number of the plurality of flux barriers has a bridge interrupting the flux barrier. Each bridge is made of a material of high permeance, and the first number of the first flux guide section is different than the second number of the second flux guide section.

A monolithically integrated bipolar transistor has an SOI substrate, a collector region in the SOI substrate, a base layer region on top of and in contact with the collector region, and an emitter layer region on top of and in contact with the base layer region, wherein the collector, base layer, and emitter layer regions are provided with separate contact regions. Further, a region of an insulating material, preferably an oxide or nitride, is provided in the base layer region, in the emitter layer region, or between the base and emitter layer regions, wherein the insulating region extends laterally at a fraction of a width of the base and emitter layer regions to reduce an effective width of the bipolar transistor to thereby eliminate any base push out effects that would otherwise occur.

A golf practice green apparatus is provided which is capable of transforming between multiple configurations. A first configuration is best suited for actual use as a target green on a golf driving range or the like. In a second configuration the effective width or other dimension of the apparatus is significantly reduced to allow for practical and legal transportation of the golf practice green apparatus over a roadway.

The invention discloses a high-threshold power semiconductor device and a manufacturing method thereof, which include sequentially from bottom to top: a drain metal electrode, a substrate, a buffer layer, and a drift region; A composite column composed of a columnar p-region and a columnar n-region, a channel layer, a passivation layer, a dielectric layer, a heavily doped semiconductor layer, a gate metal electrode and a source metal electrode; the composite column is formed by sequentially depositing P-type semiconductor layer and n-type semiconductor layer are deposited and then formed by etching; channel layer and passivation layer are formed by deposition in sequence; thus the above device is divided into cell area and terminal area, dielectric layer, heavily doped The hetero-semiconductor layer, the gate metal electrode and the source metal electrode only exist in the cell area, and the passivation layer in the terminal area extends upward and wraps around the channel layer. The structure can increase the threshold voltage of the device, improve the blocking characteristics of the device, and reduce the gate capacitance.