Abstract: A quadrifilar helical antenna includes a conical supporting medium, a feed network, and four sets of antenna composite elements. Each set of antenna composite element includes at least one short-circuit helical arm and at least one open-circuit helical arm. The short-circuit helical arm and the open-circuit helical arm in each set of antenna composite element are sequentially wound on an outer wall of the conical supporting medium in one winding direction. In an axial direction of the conical supporting medium, a projection length of the short-circuit helical arm is greater than that of the open-circuit helical arm in each set of antenna composite element. The four sets of antenna composite elements are respectively coupled to a feeding point of the feed network for feeding, and the short-circuit helical arms in the four sets of antenna composite elements are in short-circuit connection.

Abstract: Systems and methods for self-determining optical inspection of wire bonds of semiconductor components. The method is an automated optical wire bond inspection method that may include obtaining an image of a semiconductor component having wire bonds. The method may also include detecting a plurality of wire bonds on the semiconductor component image so that a wire between at least two of the plurality of detected wire bonds may be detected. Further, the method may include determining an inspection region of interest corresponding to at least one detected wire bond and at least one detected wire. The method may then include inspecting the detected wire bond along the region of interest.

Abstract: A quadrifilar helical antenna includes a conical supporting medium, a feed network, and four sets of antenna composite elements. Each set of antenna composite element includes at least one short-circuit helical arm and at least one open-circuit helical arm. The short-circuit helical arm and the open-circuit helical arm in each set of antenna composite element are sequentially wound on an outer wall of the conical supporting medium in one winding direction. In an axial direction of the conical supporting medium, a projection length of the short-circuit helical arm is greater than that of the open-circuit helical arm in each set of antenna composite element. The four sets of antenna composite elements are respectively coupled to a feeding point of the feed network for feeding, and the short-circuit helical arms in the four sets of antenna composite elements are in short-circuit connection.

Abstract: A self-determining inspection method for automated optical wire bond inspection comprising obtaining an image of a semiconductor component comprising wire bonds; detecting a plurality of wire bonds on the semiconductor component image; detecting a wire between at least two of the plurality of detected wire bonds; determining an inspection region of interest corresponding to at least one detected wire bond and at least one detected wire; and inspecting the detected wire bond along the region of interest.

Abstract: Disclosed is a Cassegrain microwave antenna, which comprises a radiation source, a first metamaterial panel used for radiating an electromagnetic wave emitted by the radiation source, and a second metamaterial panel having an electromagnetic wave convergence feature and used for converting into plane wave the electromagnetic wave radiated by the first metamaterial panel. Employment of the principle of metamaterial for manufacturing the antenna allows the antenna to break away from restrictions of conventional concave lens shape, convex lens shape, and parabolic shape, thereby allowing the shape of the Cassegrain microwave antenna to be panel-shaped or any shape as desired, while allowing for reduced thickness, reduced size, and facilitated processing and manufacturing, thus providing beneficial effects of reduced costs and improved gain effect.

Abstract: A front feed microwave antenna, which comprises a radiation source, a first metamaterial panel used for radiating an electromagnetic wave emitted by the radiation source, a second metamaterial panel, and a reflective panel affixed to the back of the first metamaterial panel. The electromagnetic wave is emitted via the first metamaterial panel, refracted by entering the second metamaterial panel, reflected by the reflective panel, and finally re-refracted by reentering the second metamaterial panel, then finally parallel-emitted.

Abstract: The embodiments of the present invention provide a method and a device for multi-cluster management. The method includes acquiring historical operating data of multiple clusters; determining future demand information of the multiple clusters based on the historical operating data; and determining cluster configuration information of the multiple clusters based on the future demand information. Compared with other solutions, the embodiments of the present invention obtain future demand information of the multiple clusters by processing and analyzing acquired historical operating data of the multiple clusters, and determine cluster configuration information of the multiple clusters based on the future demand information.

Abstract: Disclosed is a Cassegrain microwave antenna, which comprises a radiation source, a first metamaterial panel used for radiating an electromagnetic wave emitted by the radiation source, and a second metamaterial panel having an electromagnetic wave convergence feature and used for converting into plane wave the electromagnetic wave radiated by the first metamaterial panel. Employment of the principle of metamaterial for manufacturing the antenna allows the antenna to break away from restrictions of conventional concave lens shape, convex lens shape, and parabolic shape, thereby allowing the shape of the Cassegrain microwave antenna to be panel-shaped or any shape as desired, while allowing for reduced thickness, reduced size, and facilitated processing and manufacturing, thus providing beneficial effects of reduced costs and improved gain effect.

Abstract: A front feed microwave antenna, which comprises a radiation source, a first metamaterial panel used for radiating an electromagnetic wave emitted by the radiation source, a second metamaterial panel, and a reflective panel affixed to the back of the first metamaterial panel. The electromagnetic wave is emitted via the first metamaterial panel, refracted by entering the second metamaterial panel, reflected by the reflective panel, and finally re-refracted by reentering the second metamaterial panel, then finally parallel-emitted. Employment of the principle of metamaterial for manufacturing the antenna allows the antenna to break away from restrictions of conventional concave lens shape, convex lens shape, and parabolic shape, thereby allowing the shape of the antenna to be panel-shaped or any shape as desired, while allowing for reduced thickness, reduced size, facilitated processing and manufacturing, reduced costs, and improved gain effect.

Abstract: Computer program code may be generated from open markup language documents. A computer may be utilized to load source and target open markup language documents. The computer may then be utilized to compare content in the source open markup language document and content in the target open markup language document to determine differences. After the comparison has been made, the computer may be utilized to generate computer program code representative of the differences between the source and target markup language documents.

Abstract: A method of fabricating an optical component includes forming a mask on an optical component precursor. The method also includes etching through at least a portion of the mask so as to etch an underlying medium concurrently with remaining mask and transfer a feature of an upper surface of the mask onto an upper surface of the underlying medium. The etch can be configured such that a ratio of the underlying medium etch rate to the mask etch rate is less than about 1.5:1. In some instances, the underlying medium is silicon and the mask is a photoresist.

Abstract: An optical device having one or more optical components is disclosed. A waveguide extends from an optical component to a testing port configured to receive a light signal from a position over the optical device and to insert the light signal into the waveguide. In some instances, the testing port is configured to receive a light signal from the waveguide and to direct the light signal to a location over the optical device. The optical device can be positioned on a wafer before being separated from the wafer. The waveguide can extend from an optical component over the perimeter of the optical device such that the testing ports are located outside the perimeter of the optical device.

Abstract: A method of forming an optical component includes forming a first mask on an optical component precursor. The first mask is formed with a plurality of waveguide portions extending from a common portion. Each waveguide portion is positioned so as to protect a waveguide region of the optical component precursor where a waveguide is to be formed. The method also includes forming a second mask between waveguide portions of the first mask. The resistance of the second mask to etching varies along at least one dimension of the second mask.

Abstract: An optical component is disclosed. The optical component includes a tap waveguide and a primary waveguide positioned on a base. The tap waveguide is configured to receive a portion of a light signal traveling along the primary waveguide. The portion of the light signal received by the tap waveguide is the tapped portion of the light signal. A direction changing region is configured to receive the tapped portion of the light signal from the tap waveguide and to direct the tapped portion of the light signal travels away from the base. A light sensor is configured to receive the tapped portion of the light signal from the direction changing region.

Abstract: An add/drop node is disclosed. The add/drop node includes a first filter configured to receive a light beam having a plurality of channels. The first filter is also configured to direct channels having wavelengths falling within a plurality of first wavelength bands to a transition waveguide. The add/drop node also includes a second filter configured to receive the channels directed to the transition waveguide. The second filter is configured to direct channels having wavelengths falling within a plurality of second wavelength bands to a drop waveguide. The first filter and/or the second filter can be tunable.

Abstract: In an overlay measurement mark comprising an inner box and an outer box located at a predetermined area on a mask through which patterns are formed on a semiconductor device, the improvement of an overlay mark that extends the overlay measurement range comprising: in-focused marks means printed at an optimal or ideal focal plane level from an illumination source, and de-focused marks means located at a different focus level from the optimal focal plane to provide image placement shift of the de-focused marks larger than that of the in-focused marks means to enable measurement of the shift of de-focused marks that are not attributable to a mechanical alignment error to be determined with greater accuracy.

Abstract: An optical device having one or more optical components is disclosed. A waveguide extends from an optical component to a testing port configured to receive a light signal from a position over the optical device and to insert the light signal into the waveguide. In some instances, the testing port is configured to receive a light signal from the waveguide and to direct the light signal to a location over the optical device. The optical device can be positioned on a wafer before being separated from the wafer. The waveguide can extend from an optical component over the perimeter of the optical device such that the testing ports are located outside the perimeter of the optical device.

Abstract: A method of preparing an optical component for coupling with an optical fiber is disclosed. The method includes determining a thickness of a buffer layer formed on the optical component. The method also includes forming an anti reflective coating adjacent to the buffer layer. The anti reflective coating is formed to a thickness selected in response to the determined buffer layer thickness.

Abstract: A method of forming an optical component is disclosed. The method includes obtaining an optical component precursor having a first medium positioned over a base and converting a portion of the first medium to a second medium. The method further includes removing a portion of the second medium so as to form a ridge in the second medium. The portion of the second medium is removed so as to expose a portion of the first medium.

Abstract: A method of forming a reflecting surface on an optical component is disclosed. The method includes forming a first mask so as to protect a ridge region of a light transmitting medium. The ridge region is a region where a ridge of a waveguide will be formed. The method also includes performing a first etch of the light transmitting medium so as to form a side of the ridge. The first mask defines a profile of the side of the ridge during the first etch. The method further includes performing a second etch of the light transmitting medium so as to form the reflecting surface. The first mask defines a profile of the reflecting surface during the second etch.