Abstract: Embodiments of the disclosure are drawn to apparatuses and methods for a tunable digital power amplifier (DPA). The tunable DPA may be coupled to a reconfigurable capacitor to form a frequency tunable DPA. The capacitance of the reconfigurable capacitor may be adjusted to optimize the DPA to operate at a desired frequency band. The single tunable DPA may operate over a wide range of frequencies.

Abstract: An antenna structure includes a metal frame. The metal frame includes a first gap, a second gap, a third gap, and a fourth gap to separate a first antenna, a second antenna, a third antenna, and a fourth antenna from the metal frame. The metal frame includes a fifth antenna. The first antenna, the second antenna, the third antenna, and the fourth antenna cooperatively form a first multiple-input multiple-output (MIMO) antenna to provide a 4×4 multiple-input multiple-output function in a second frequency band. The first antenna, the second antenna, the third antenna, and the fifth antenna cooperatively form a second MIMO antenna to provide a 4×4 multiple-input multiple-output function in a third frequency band. The first antenna and the third antenna cooperatively form a third MIMO antenna to provide a 2×2 multiple-input multiple-output function in a first frequency band.

Abstract: A probe card for detecting a wafer. The probe card includes a light-output element, which is connected to a positioning element. The light-output element is set within a through hole of an electrical detection substrate. The light-output element is connected to a light source controller by an optical fiber, thereby an output light can be transmitted from the light source controller to the light-output element. The positioning element can move the light-output element in three-dimensional space or adjust an emitting angle from an axis of the light-output element. Therefore, an optical measurement and an electrical measurement can be implemented at the same time in the silicon photonic wafer test.

Abstract: An adjusting base for door closer includes a fixing member, an adjusting member, and at least one adjusting unit. The fixing member is configured to be fixed to a surface, and an upper surface of the fixing member is arranged with at least one protrusion. The adjusting member is arranged on the upper surface of the fixing member in an adjustable manner, and configured to be connected to a door closer. The adjusting member is formed with at least one adjusting hole for receiving the at least one protrusion. The at least one adjusting unit is movably arranged on the adjusting member and configured to abut against the at least one protrusion to adjust a relative position between the adjusting member and the fixing member.

Abstract: An injection device is disclosed herein. The injection device is utilized to inject a liquid onto a test area of a semiconductor element. The injection device includes a base, a reservoir, a first testing pipe, a cleaning pipe and a liquid-draining pipe. The reservoir set on the base is provided with at least one connecting port and a dropping port, wherein the dropping port is against the test area of the semiconductor element. The first testing pipe, the cleaning pipe and the liquid-draining pipe are connected to at least one connecting port, wherein a first liquid is injected from the first testing pipe into the reservoir, and wherein the a cleaning liquid is injected from the cleaning pipe into the reservoir to clean the reservoir and the test area. The dropping port is utilized to drain off the first testing liquid and the cleaning liquid in the reservoir. A semiconductor testing system utilizing the injection device and its testing method are also provided herein.

Abstract: Methods and systems for cutting or perforating webs are disclosed. A method of cutting or perforating a web can include providing a web including a film. The film can include a polyolefin polymer and a plurality of particles. The film can include a width and length defining a surface. The method can further include stretching the film to provide a stretched film. Stretching the film can provide a plurality of voids in the stretched film. The method can additionally include providing a laser assembly. The method can include directing abeam of light from the laser assembly upon the surface of the web to cut or perforate the web in at least one location.

Abstract: A pharmaceutical composition containing a mixed polymeric micelle and a drug enclosed in the micelle, in which the mixed polymeric micelle, 1 to 1000 nm in size, includes an amphiphilic block copolymer and a lipopolymer. Also disclosed are preparation of the pharmaceutical composition and use thereof for treating cancer.

Abstract: The invention provides methods and compositions for enhancing drought and/or salt tolerance in plants. Nucleic acid constructs therefore are also described. Transgenic plants are also provided that exhibit enhanced agronomic properties. The inventors have demonstrated increased drought and salt tolerance in connection with increased expression of the Xb3 gene.

Abstract: An active wafer prober preheat-precool system comprises a wafer loading unit used to load at least one wafer; a probe card disposed corresponding to the wafer loading unit and used to test the wafer; a carrying mechanism including a central connector corresponding to the wafer loading unit and having a first opening, wherein the probe card is connected with the central connector and faces the wafer loading unit through the first opening; a peripheral connector having a second opening, wherein the central connector is detachably disposed inside the second opening; and a first temperature regulation unit disposed in the peripheral connector; and a control unit electrically connected with the first temperature regulation unit and controlling the first temperature regulation unit to adjust the temperature of the peripheral connector. The present invention also discloses a method for testing wafers.

Abstract: An electronic device includes a backup power supply unit, a first power management unit, a switch, a voltage detection unit, a processor and an electronic module. The first power management unit is coupled to the backup power supply unit and an external power supply unit. The switch is coupled to the first power management unit. The voltage detection unit is coupled to the external power supply unit and the switch. The processor is coupled to the voltage detection unit. The electronic module is coupled to the switch and the processor. When a voltage level of the external power supply unit is lower than a first predetermined level, the voltage detection unit outputs a detection signal. The switch is controlled by the detection signal to open to stop supplying power to the electronic module. The processor is controlled by the detection signal to execute a shutdown process.

Abstract: A motion-aware keypoint selection system adaptable to iterative closest point (ICP) includes a pruning unit that receives an image and selects at least one region of interest (ROI) composed of a selected subset of points on the image; a point quality estimation unit that generates point quality of each point in the ROI according to a frame rate; and a suppression unit that receives the point quality and generates keypoints by screening the ROI.

Abstract: A motion-aware keypoint selection system adaptable to iterative closest point (ICP) includes a pruning unit that receives an image and selects at least one region of interest (ROI) composed of a selected subset of points on the image; a point quality estimation unit that receives the ROI and generates point quality; and a suppression unit that receives the point quality and generates keypoints. In one embodiment, a near edge region (NER) is selected as the ROI. In another embodiment, the point quality estimation unit generates point quality according to point motion and point depth.

Abstract: Embodiments of the disclosure are drawn to apparatuses and methods for transmission beamforming. A multiphase beam steering transmitter may include a transmitter array of multiple transmitters. A transmitter may include a multiphase logic decoder that directly controls a power amplifier to perform a vector addition of a beam phase and amplitude. A transmitter of the array may include a multiphase clock generator that outputs basis phases with embedded phase modulation data which are output to the multiphase logic decoder. The multiphase clock generator may receive a modulated clock signal. The PA may be a multiphase switched capacitor power amplifier. The multiphase logic decoder may output two phases adjacent to a desired phase as inputs to clocks of the SCPA. The multiphase logic decoder may further output a control signal that determines which cells in the SCPA are activated and when.

Abstract: A semiconductor test apparatus includes a test chamber, a chuck and a refrigeration element. The chuck is arranged in the test chamber to fix a semiconductor element to be tested. The refrigeration element is connected to the test chamber to reduce a chamber ambient temperature of the test chamber from a first temperature to a second temperature. The foregoing semiconductor test apparatus is able to reduce the chamber ambient temperature of the test chamber to be equal to or lower than the specified test temperature.

Abstract: A chip packaging method includes followings steps. A plurality of first chips are disposed on a carrier, wherein each of the first chips has a first active surface, and a plurality of first conductive pillars are disposed on the first active surface. A second active surface of a second chip is electrically connected to the first active surfaces of the first chips through a plurality of second conductive pillars. An encapsulated material is formed, wherein the encapsulated material covers the plurality of first chips, the plurality of first conductive pillars, the second chip and the plurality of second conductive pillars. The encapsulated material is partially removed to expose each of the plurality of first conductive pillars. A redistribution structure is formed on the encapsulated material, wherein the redistribution structure connects with the first conductive pillars.

Abstract: Embodiments of the disclosure are drawn to apparatuses and methods for a tunable digital power amplifier (DPA). The tunable DPA may be coupled to a reconfigurable capacitor to form a frequency tunable DPA. The capacitance of the reconfigurable capacitor may be adjusted to optimize the DPA to operate at a desired frequency band. The single tunable DPA may operate over a wide range of frequencies.

Abstract: Embodiments of the disclosure are drawn to apparatuses and methods for transmission beamforming. A multiphase beam steering transmitter may include a transmitter array of multiple transmitters. A transmitter may include a multiphase logic decoder that directly controls a power amplifier to perform a vector addition of a beam phase and amplitude. A transmitter of the array may include a multiphase clock generator that outputs basis phases with embedded phase modulation data which are output to the multiphase logic decoder. The multiphase clock generator may receive a modulated clock signal. The PA may be a multiphase switched capacitor power amplifier. The multiphase logic decoder may output two phases adjacent to a desired phase as inputs to clocks of the SCPA. The multiphase logic decoder may further output a control signal that determines which cells in the SCPA are activated and when.

Abstract: A mobile device includes a metal back cover, an edge appearance element, a display device, a supporting element, an antenna structure, and a ground element. The edge appearance element is made of a nonconductive material. The edge appearance element is connected to the metal back cover. The display device is disposed opposite to the metal back cover. The antenna structure is disposed on the supporting element. The antenna structure is positioned between the edge appearance element and the display device. The ground element is coupled to the metal back cover. The electromagnetic waves of the antenna structure are transmitted through the edge appearance element, such that the mobile device supports wireless communication.

Abstract: A motion-aware keypoint selection system adaptable to iterative closest point (ICP) includes a pruning unit that receives an image and selects at least one region of interest (ROI) composed of a selected subset of points on the image; a point quality estimation unit that receives the ROI and generates point quality; and a suppression unit that receives the point quality and generates keypoints. In one embodiment, a near edge region (NER) is selected as the ROI. In another embodiment, the point quality estimation unit generates point quality according to point motion and point depth.

Abstract: A motion-aware keypoint selection system adaptable to iterative closest point (ICP) includes a pruning unit that receives an image and selects at least one region of interest (ROI) composed of a selected subset of points on the image; a point quality estimation unit that generates point quality of each point in the ROI according to a frame rate; and a suppression unit that receives the point quality and generates keypoints by screening the ROI.