Abstract: A method for fabricating a resistance variable memory device, includes: providing a substrate having first contacts and second contacts, where the second contacts do not overlap the first contacts; forming a line pattern over the substrate, the line pattern overlapping a first line and including a stacked structure of a first electrode, a resistor, and a second electrode; forming a first contact hole to expose the second contact; forming an insulating spacer on a sidewall of the first contact hole; forming a third contact to fill the first contact hole having the insulating spacer formed therein; and forming a third electrode over the third contact such that the third electrode overlaps a second line extending in a second direction and is cut open over the first contact, where the first and second contacts are alternately arranged on the second line.

Abstract: Provided is a transmission gear box for bikes including: crank arms that receive a rotational driving force from rotatable pedals of each bike and transmits the received rotational driving force to a main shaft; a transmission gear unit that receives the rotational driving force from the main shaft and performs a transmission mode shifting operation at a gear tooth ratio according to a selected transmission mode gearshift; a lever manipulation unit that selects one of the transmission mode gearshifts of the transmission gear unit according to manipulation of a transmission mode shift lever, to thus manipulate one of cables connected to the respective transmission mode gearshifts; and a clutching unit that is operated by one cable selected by the lever manipulation unit to thus make one of ring gears of the transmission gear unit fixed in a gear tooth engagement coupling manner and to thereby manipulate a transmission mode shifting process of the transmission gear unit.

Abstract: An optical polarization converter system includes a plurality of lenses, a light incident surface, a light emitting surface, a first optical coating, a second optical coating and a half-wave plate. The lenses are made of light permeable medium and mutually and tightly arranged. A plurality of basic widths are defined on the light incident surface and the light emitting surface. The first optical coating and second optical coating, configured between the light incident surface and the light emitting surface and having an inclined angle of forty-five degrees relative to the light incident surface, are spaced apart one basic width. The half-wave plate is disposed on the light emitting surface corresponding to one of the first optical coating and the second optical coating. The first and second optical coatings are provided with properties of splitting an incident beam and beam reflection.

Abstract: A light emitting diode contains a package structure and a light emitting diode die embedded in the package structure. The package structure has an elliptic bottom surface having a semi-major axes and a semi-minor axis and a semi-ellipsoidal surface connecting and surrounding the edge of the elliptic bottom surface, wherein the maximum height of the ellipsoidal surface from the elliptic bottom surface is between the semi-major axes and the semi-minor axis.

Abstract: A light emitting diode contains a package structure and a light emitting diode die embedded in the package structure. The package structure has an elliptic bottom surface having a semi-major axes and a semi-minor axis and a semi-ellipsoidal surface connecting and surrounding the edge of the elliptic bottom surface, wherein the maximum height of the ellipsoidal surface from the elliptic bottom surface is between the semi-major axes and the semi-minor axis.

Abstract: A light-tuning method is provided. In the method, a filter material is first selected for filtering out unwanted light of a specific wavelength to obtain a transmittance spectrum. The transmittance spectrum is multiplied by an eye sensitivity function to obtain a filtered spectrum. The filtered spectrum has a wavelength range between 450 nm and 650 nm. According to a full width at half maximum (FWHM) wavelength range of the filtered eye sensitivity function, a phosphor is selected and a light-emitting spectrum of the phosphor is determined so that between the light-emitting spectrum of the phosphor and the filtered eye sensitivity function is an optimal matching degree.

Abstract: A light emitting diode contains a package structure and a light emitting diode die embedded in the package structure. The package structure has an elliptic bottom surface having a semi-major axes and a semi-minor axis and a semi-ellipsoidal surface connecting and surrounding the edge of the elliptic bottom surface, wherein the maximum height of the ellipsoidal surface from the elliptic bottom surface is between the semi-major axes and the semi-minor axis.

Abstract: A light source module of a projector includes a beam splitter, a red light source, a blue light source, and a blue light source. The beam splitter has a first reflection side, on which a first splitter film is provided, and a second reflection side, on which a second splitter film is provided. An angle between a normal line of the first reflection side, and a normal line of the second reflection side, is in a range between 165 degrees and 180 degrees. Both the first splitter film and the second splitter film permit red rays to pass therethrough. The red light source is separated from the blue and green light sources to obtain a better thermal dissipation.

Abstract: A light emitting diode contains a light emitting diode chip and a light directing structure disposed thereon. The light directing structure has a pair of connected hemi-ellipsoids and an interface interposed therebetween. Each hemi-ellipsoid comprises a bottom surface in a shape of an incomplete ellipse and an ellipsoidal surface connected to the bottom surface and the interface, wherein the largest vertical distance from the ellipsoidal surface to the bottom surface is longer than a height of the interface. The bottom surface has a major axis and a minor axis intersected to define a center, wherein the interface is connected to the minor axis.

Abstract: A switching device includes a first electrode, a bipolar tunneling layer, and a second electrode. The bipolar tunneling layer is formed on the first electrode and includes a plurality of dielectric layers having different dielectric constants. The second electrode is formed on the bipolar tunneling layer.

Abstract: A semiconductor device includes a memory block including a transistor region and a memory region. A variable resistance layer of the memory region acts as a gate insulating layer in the transistor region.

Abstract: An anti-dust structure for a sliding block of a linear guideway comprises a sliding block, two end caps, plural rolling elements, a flexible anti-dust strip and a rail. The two end caps are assembled to both ends of the sliding block, the rolling elements are disposed on the rail. Between the end cap and the sliding block is defined a circulating path. The two end caps are each extended from an inner side thereof to form a linking portion, and the two linking portions of the two end caps are linked to each other to define an endless positioning groove including two longitudinal grooves and two transverse grooves. The flexible anti-dust strip is disposed in the positioning groove of the end caps and integrally formed with protruding lip portions for cooperating with the two longitudinal grooves.

Abstract: A white-light emitting device comprises a substrate, a short wavelength light source, a protective layer, a first structure, and a second structure. The short wavelength light source is disposed on the substrate for generating a first light, and the protective layer covering the short wavelength light source is pervious to the first light. The first structure is disposed on the protective layer for generating a second light, in which the first structure includes a first quantum well and a transmission layer. The second structure is disposed on the first structure for generating a third light. Finally, the first light, the second light, and the third light are mixed to generate a white light.

Abstract: A rolling element chain system for a linear guideway comprises a slide rail, a slide block, a plurality of rolling elements and a rolling element chain. The circulating path of the slide block is interiorly provided with a guiding groove with a width C, and the rolling elements roll within the circulating path and are confined by the rolling element chain. The rolling element chain has a plurality of spacers for separating the rolling elements from one another and linking portions with a thickness t for linking the rolling elements with one another. The spacer at each end of the rolling element chain has a retaining capacity B for holding the corresponding rolling element. The above structure satisfies the relation: C<t+B/?.

Abstract: An address generator of a communication data interleaver and a communication data decoding circuit are provided. The address generator includes a first operation unit and a second operation unit. The first operation unit receives a first parameter and a first operation result. The first operation unit performs a recursive operation according to the first parameter and the first operation result and outputs the first operation result. The second operation unit receives the first operation result, a second operation result, and a second parameter. According to a transmission mode signal, whether the second operation unit generates a second operation result is determined by performing a recursive operation according to the first operation result, the second parameter, and the second operation result, or by calculating the first operation result and the second parameter.

Abstract: A transmitter and the method therefor are provided. The transmitter is applied in an orthogonal frequency division multiplexing (OFDM) based or other multicarrier communication systems. The transmitter uses N sub-carriers. Among the N sub-carriers, L sub-carriers (or tones) are reserved for PAPR reduction. L is less than N. The method includes the following steps. Original frequency domain data symbols are generated and fed into the reserved-tone symbol generation unit. The reserved-tone symbols are generated by using pure frequency domain signal processing. Then the reserved-tone symbols are combined with original data symbols to generate combined PAPR reduction signal. The resultant PAPR reduction signal can be fed into reserved-tone symbol generation unit iteratively to obtain updated reserved-tone symbols. For proper iterations, the original data symbols combined with L frequency domain reserved-tone symbols will result in lower PAPR transmit signal.

Abstract: A light emitting diode contains a light emitting diode chip and a light directing structure disposed thereon. The light directing structure has a pair of connected hemi-ellipsoids and an interface interposed therebetween. Each hemi-ellipsoid comprises a bottom surface in a shape of an incomplete ellipse and an ellipsoidal surface connected to the bottom surface and the interface, wherein the largest vertical distance from the ellipsoidal surface to the bottom surface is longer than a height of the interface. The bottom surface has a major axis and a minor axis intersected to define a center, wherein the interface is connected to the minor axis.

Abstract: In wireless communication system and method, a guard band detection (GBD) is performed in a channel to detect the existence of guard bands of a correct channel, so to predetermine that whether the current channel is correct or not. If GBD and a subsequent authorization are both passed in the channel, then the channel is determined as the correct channel. Besides, multiple point estimation (MPE) can be used to analyze the signal strengths in different frequencies to predict the location of the correct channel.

Abstract: A method forming a semiconductor device includes forming a domed gate oxide film to relieve stress resulting from a thermal expansion rate difference of an oxide film and silicon film during a subsequent thermal process and preventing leakage current between source/drain regions through thickness regulation of the gate oxide film to improve refresh characteristics.