Abstract: An automatic paper shredder includes a shredder cover, a paper holding box, a shell, a paper holding plate, a paper holding plate inlet, a paper shredding component, a drive motor, a paper pressing plate, a paper pick-up component, and a waste paper bin. The paper pressing effect is improved through a spliced paper pressing plate, and the paper pick-up effect is improved through a damping plate, a soft rubber piece, and a convex rib, and thus, efficiency is improved. The automatic paper shredder has the characteristics of being highly automated, convenient to use, safe, reliable, structurally simple and cost-effective.

Abstract: The present disclosure provides a semiconductor device, including a semiconductive substrate, a dielectric stack disposed over the semiconductive substrate to form a wall of a grating coupler opening, and an etch stopper interfacing with two sublayers of the dielectric stack and partially separating the interface of the two sublayers. The etch stopper has a resistance to a fluorine solution that is higher than that of the two sublayers. A method of manufacturing the semiconductor device is also provided.

Abstract: A paper shredder having shredder cover and a motor coupled to shredder blades includes a shredder throat in proximity to shredder blades. The shredder throat has a moveable blade, and a fixed blade. A shredder jam grip has a projection in communication with a power switch plunger. When the shredder is in the NORMAL position, a throat gap is in its normal position and the projection positions the plunger to power to the motor. When the shredder is in the JAM CLEAR position, the throat gap is in its wide position and the projection positions the plunger to remove power from the motor.

Abstract: The present disclosure provides a semiconductor device, including a semiconductive substrate, a dielectric stack disposed over the semiconductive substrate to form a wall of a grating coupler opening, and an etch stopper interfacing with two sublayers of the dielectric stack and partially separating the interface of the two sublayers. The etch stopper has a resistance to a fluorine solution that is higher than that of the two sublayers. A method of manufacturing the semiconductor device is also provided.

Abstract: An integrated locking and sealing fastener with electrical conductivity is revealed. The integrated locking and sealing fastener with electrical conductivity includes a fastener with a surface and a conductive anti-loosening coating. A part of the surface of the fastener is a fastening contact surface and the conductive anti-loosening coating is formed on the fastening contact surface. The conductive anti-loosening coating consists of an anti-loosening portion and a conductive portion mixed with each other. The anti-loosening portion is made from polyamide (PA) resin, acrylic (PMMA) resin, polyethylene, epoxy resin, silicone, rubber, or the combinations. The conductive portion is made from materials including carbon black, metal powders, a silver wire, graphite, or the combinations. The coating on the fastener not only prevents loosening and leakage but also provides electrical conductivity.

Abstract: Polishing compositions comprising ceria coated silica particles and organic acids having one selected from the group consisting of sulfonic acid group, phosphonic acid group, pyridine compound, and combinations thereof, with pH between 5 and 10 and electrical conductivity between 0.2 and 10 millisiemens per centimeter provide very high silicon oxide removal rates for advanced semiconductor device manufacturing.

Abstract: A paper shredder with counter-rotating shredder blades coupled to a shredder motor, including a paper tray having a floor and being shaped to receive paper. The floor has an offset slot therein adjacent to the counter-rotating shredder blades. The engagement wheels partly protrude through floor, adjacent to the offset slot. The engagement wheels frictionally engage paper and turn towards the offset slot to force paper into the shredder blades. Also, a dentate catch disposed in each corner of the paper tray temporarily holds an affixment while a sheet of paper held by the affixment is being frictionally engaged by the engagement wheels to enter the slot for comminution. A PAPER FULL sensor, a DOOR OPEN sensor, an OVERLOAD sensor, an OVERHEAT sensor, a paper-in-tray sensor, a paper-at-entry sensor, a SAFETY LOCK sensor, and a cover door open/closed sensor are provided, as are AUTO and MANUAL modes of operation.

Abstract: A paper scrap pushing structure of a paper shredder, including a rotating shaft, a paper pushing rod, and connecting rods, in which the rotating shaft is arranged under a paper outlet, and is in linkage with a paper shredder cutter shaft through a synchronous transmission device. The paper pushing rod is located on one side of the rotating shaft, arranged in the length direction of the rotating shaft in parallel and connected with the rotating shaft through the connecting rods. The distance from the paper pushing rod to the rotating shaft is smaller than the distance from the lowest portion of the paper shredder cutter shaft to the rotating shaft. When rotating, the rotating shaft drives the paper pushing rod to move in a circumferential direction through the connecting rods, removing paper scraps at the top of a paper scrap pile in a shredded paper waste bin.

Abstract: A vehicle parking apparatus includes two front stanchions and two rear stanchions all mounted on a base frame; a top support interconnecting the front stanchions and the rear stanchions; a platform having a rear end moveably secured to the rear stanchions, and two sides moveably secured to the front stanchions; and two elevating assemblies, each including a first pulley on an upper portion of one rear stanchion, a second pulley fixedly disposed on either side of the top support, a third pulley on either side of the platform, a fourth pulley fixedly disposed on a bottom of one rear stanchion, the fourth pulley being driven by a motor, and a rope having one end secured to the base frame, and the other end secured to the top support, the rope sequentially passing through the first pulley, the fourth pulley, the second pulley, and the third pulley.

Abstract: Provided are Chemical Mechanical Planarization (CMP) formulations that offer high and tunable Cu removal rates and low copper dishing for the broad or advanced node copper or Through Silica Via (TSV). The CMP compositions provide high selectivity of Cu film vs. other barrier layers, such as Ta, TaN, Ti, and TiN, and dielectric films, such as TEOS, low-k, and ultra low-k films. The CMP polishing formulations comprise solvent, abrasive, at least three chelators selected from the group consisting of amino acids, amino acid derivatives, organic amine, and combinations therefor; wherein at least one chelator is an amino acid or an amino acid derivative. Additionally, organic quaternary ammonium salt, corrosion inhibitor, oxidizer, pH adjustor and biocide are used in the formulations.

Abstract: A paper shredder controller, with an all-analog controller including a power supply circuit, coupled to a door open switch circuit, an automatic forward control circuit, an automatic reverse control circuit, and a wastebin full circuit. The paper shredder controller includes an overload circuit, a forward-reverse control and relays circuit, a forward-reverse model delay setting circuit, and an overheating protection circuit. Further includes a POWER indicator light; a DOOR OPEN light; an AUTOMATIC FORWARD light; an OVERHEATING light, and a WASTEBIN FULL light.

Abstract: A paper shredder having shredder cover and a motor coupled to shredder blades includes a shredder throat in proximity to shredder blades. The shredder throat has a moveable blade, and a fixed blade. A shredder jam grip has a projection in communication with a power switch plunger. When the shredder is in the NORMAL position, a throat gap is in its normal position and the projection positions the plunger to power to the motor. When the shredder is in the JAM CLEAR position, the throat gap is in its wide position and the projection positions the plunger to remove power from the motor.

Abstract: A paper shredder with counter-rotating shredder blades coupled to a shredder motor, including a paper tray having a floor and being shaped to receive paper. The floor has an offset slot therein adjacent to the counter-rotating shredder blades. The engagement wheels partly protrude through floor, adjacent to the offset slot. The engagement wheels frictionally engage paper and turn towards the offset slot to force paper into the shredder blades. Also, a dentate catch disposed in each corner of the paper tray temporarily holds an affixment while a sheet of paper held by the affixment is being frictionally engaged by the engagement wheels to enter the slot for comminution. A PAPER FULL sensor, a DOOR OPEN sensor, an OVERLOAD sensor, an OVERHEAT sensor, a paper-in-tray sensor, a paper-at-entry sensor, a SAFETY LOCK sensor, and a cover door open/closed sensor are provided, as are AUTO and MANUAL modes of operation.

Abstract: A paper shredder having shredder cover and a motor coupled to shredder blades includes a shredder throat in proximity to shredder blades. The shredder throat has a moveable blade, and a fixed blade. A cam coupled to the moveable blade is in communication with a power switch plunger. When the shredder is in the NORMAL/ON position, a throat gap is in its normal position and the cam positions the plunger to power to the motor. When the shredder is in the JAM CLEAR/OFF position, the throat gap is in its wide position and the cam positions the plunger to remove power to the motor. A method is provided, including providing a moveable blade; sensing a throat jammed condition; releasing the moveable blade; moving the moveable blade to a wide gap position; sensing the moveable blade in the wide gap position; turning off the motor in response to the sensing.

Abstract: A vehicle parking apparatus includes two front stanchions and two rear stanchions all mounted on a base frame; a top support interconnecting the front stanchions and the rear stanchions; a platform having a rear end moveably secured to the rear stanchions, and two sides moveably secured to the front stanchions; and two elevating assemblies, each including a first pulley on an upper portion of one rear stanchion, a second pulley fixedly disposed on either side of the top support, a third pulley on either side of the platform, a fourth pulley fixedly disposed on a bottom of one rear stanchion, the fourth pulley being driven by a motor, and a rope having one end secured to the base frame, and the other end secured to the top support, the rope sequentially passing through the first pulley, the fourth pulley, the second pulley, and the third pulley.

Abstract: A paper shredder having shredder cover and a motor coupled to shredder blades includes a shredder throat coupled to an inlet in the shredder cover and in proximity to shredder blades. The shredder throat has a moveable throat blade, which widens the shredder throat. An anti-jam switch, which when activated causes the motor to advance the shredder blades to clear a jam in the widened shredder throat. The jam clearing mechanism can be automatic or manual, as by push-button or turn-knob linkages. A method for recovering from a shredder jam in a paper shredder is provided, including providing a moveable throat blade; sensing a shredder throat jammed condition; releasing the moveable throat blade; moving the moveable throat blade to a wide gap position; sensing the moveable throat blade in the wide gap position; advancing shredder blades in response to the sensing, by which the jammed condition is cleared.

Abstract: A novel safe paper feed opening structure of a paper shredder, having a shredder upper cover and a paper shredder plate. The shredder upper cover has an opening, and the paper shredder plate is at the opening. The opening communicates with a moveable feed throat. The paper shredder plate can be configured in one of four positions. The moveable feed throat has a normal opening and a wide opening. The feed throat can be moved to the wide opening when the shredder plate is in a JAM CLEAR/OFF position. The CLOSED/OFF, NORMAL/ON, and SHRED-SAFE/OFF positions use a normal feed throat. A method for operating a paper shredder includes providing a shredder upper cover; providing the shredder upper cover with an opening; disposing a paper shredder plate at the opening; disposing the opening in communication with a moveable feed throat; and moving the feed throat responsive to a paper shredder condition.

Abstract: A paper shredder having shredder cover and a motor coupled to shredder blades includes a shredder throat in proximity to shredder blades. The shredder throat has a moveable blade, and a fixed blade. A cam coupled to the moveable blade is in communication with a power switch plunger. When the shredder is in the NORMAL/ON position, a throat gap is in its normal position and the cam positions the plunger to power to the motor. When the shredder is in the JAM CLEAR/OFF position, the throat gap is in its wide position and the cam positions the plunger to remove power to the motor. A method is provided, including providing a moveable blade; sensing a throat jammed condition; releasing the moveable blade; moving the moveable blade to a wide gap position; sensing the moveable blade in the wide gap position; turning off the motor in response to the sensing.

Abstract: A paper shredder having shredder cover and a motor coupled to shredder blades includes a shredder throat coupled to an inlet in the shredder cover and in proximity to shredder blades. The shredder throat has a moveable throat blade, which widens the shredder throat. An anti-jam switch, which when activated causes the motor to advance the shredder blades to clear a jam in the widened shredder throat. The jam clearing mechanism can be automatic or manual, as by push-button or turn-knob linkages. A method for recovering from a shredder jam in a paper shredder is provided, including providing a moveable throat blade; sensing a shredder throat jammed condition; releasing the moveable throat blade; moving the moveable throat blade to a wide gap position; sensing the moveable throat blade in the wide gap position; advancing shredder blades in response to the sensing, by which the jammed condition is cleared.

Abstract: A method and device for detecting a force factor of a loudspeaker is provided. The method includes the steps of: providing the loudspeaker with a dynamic driving voltage signal; continuously measuring a current signal flowing through the loudspeaker; observing the current signal and if the current signal shows that the diaphragm excursion of the loudspeaker is greater than an displacement limit, decreasing the driving voltage signal until the current signal shows that the diaphragm excursion of the loudspeaker is less than or equal to the displacement limit; and substituting the current driving voltage signal, the current signal, the displacement limit, and an electrical impedance of the loudspeaker into a function so as to compute the force factor of the loudspeaker.