Abstract: The present disclosure belongs to the technical field of nanomaterial synthesis, and in particular, to a preparation method for a core-shell structure quantum dot. The preparation method provided by the present disclosure includes the following steps: in a protective gas atmosphere, mixing a cadmium source, an organic ligand, and an organic solvent with a first selenium source for a nucleation reaction to obtain an organic solution of a CdSe quantum dot core; and mixing the organic solution of the CdSe quantum dot core, a zinc source and an inorganic anion source for shell coating to obtain the core-shell structure quantum dot, where the inorganic anion source includes a second selenium source.

Abstract: A system for processing a semiconductor wafer is provided. The system includes a processing tool. The system also includes gas handling housing having a gas inlet and a gas outlet. The system further includes an exhaust conduit fluidly communicating with the processing tool and the gas inlet of the gas handling housing. In addition, the system includes at least one first filtering assembly and at least one second filtering assembly. The first filtering assembly and the second filtering assembly are positioned in the gas handling housing and arranged in a series along a flowing path that extends from the gas inlet to the gas outlet of the gas handling housing. Each of the first filtering assembly and the second filtering assembly comprises a plurality of wire meshes stacked on top of another.

Abstract: A system for processing a semiconductor wafer is provided. The system includes a processing tool. The system also includes gas handling housing having a gas inlet and a gas outlet. The system further includes an exhaust conduit fluidly communicating with the processing tool and the gas inlet of the gas handling housing. In addition, the system includes at least one first filtering assembly and at least one second filtering assembly. The first filtering assembly and the second filtering assembly are positioned in the gas handling housing and arranged in a series along a flowing path that extends from the gas inlet to the gas outlet of the gas handling housing. Each of the first filtering assembly and the second filtering assembly comprises a plurality of wire meshes stacked on top of another.

Abstract: The present disclosure belongs to the technical field of nanomaterial synthesis, and in particular, to a preparation method for a narrow-linewidth alloy quantum dot. The preparation method provided by the present disclosure includes the following steps: in a protective gas atmosphere, mixing a cadmium source, an organic ligand, and an organic solvent with a first selenium source for a nucleation reaction to obtain an organic solution of a CdSe quantum dot core; and mixing the organic solution of the CdSe quantum dot core, a zinc source and an inorganic anion source for shell coating to obtain the narrow-linewidth alloy quantum dot, where the inorganic anion source includes a second selenium source.

Abstract: A system for processing a semiconductor wafer is provided. The system includes a processing tool. The system also includes gas handling housing having a gas inlet and a gas outlet. The system further includes an exhaust conduit fluidly communicating with the processing tool and the gas inlet of the gas handling housing. In addition, the system includes at least one first filtering assembly and at least one second filtering assembly. The first filtering assembly and the second filtering assembly are positioned in the gas handling housing and arranged in a series along a flowing path that extends from the gas inlet to the gas outlet of the gas handling housing. Each of the first filtering assembly and the second filtering assembly comprises a plurality of wire meshes stacked on top of another.

Abstract: An artificial intelligence optical character image recognition system and method, using few shot learning on recognition system for character image in industrial processes, mainly including: preparing two or more identical neural network architecture units, inputting similar or different character images respectively, and comparing the calculation results to see if the weights are similar. If the similarity reaches the set standard value, they are classified as the same type of character, otherwise different. Through such procedures, training samples in the storage unit are gradually divided into settings of character sets with different contextual meanings, becoming a complete AI OCR system. It can increase training sample data by comparing characters, without increasing the training set. Simultaneously, it can improve the flexibility of recognizing test characters.

Abstract: A sensor assembly for an unmanned aerial vehicle (UAV) includes a binocular sensor. The binocular sensor includes two vision sensors. The two vision sensors are located at a same vertical plane. The two vision sensors are arranged one above another at an interval.

Abstract: A silver paste includes silver powder having a weight percentage of about 39% to about 60%, organic carrier having a weight percentage of about 35% to about 60%; and inorganic glass phase having a weight percentage of about 1% to about 5%. The inorganic glass phase includes a primary glass phase and inorganic additives. The primary glass phase includes bismuth oxide having a weight percentage of 10% to 40% in the inorganic glass phase, aluminum oxide having a weight percentage of 20% to 60% in the inorganic glass phase, and silicon oxide having a weight percentage of 10% to 30% in the inorganic glass phase.

Abstract: A mouse device includes an upper cover, an intermediate cover, a lower cover, a circuit board, and two switches. Two protrusion posts of the upper cover are respectively penetrated through two perforations of the intermediate cover. Two first pivotal parts of the upper cover are respectively connected with two second pivotal parts of the intermediate cover. The upper cover is fixedly connected to an annular sidewall of the lower cover. The circuit board and the two switches are disposed on the lower cover. When the upper cover is rotated relative to the intermediate cover through the two first pivotal parts and two second pivotal parts, one of the two switches is triggered by the corresponding protrusion post so as to generate a corresponding electronic signal. The use of the present mouse device can prevent from introducing foreign matters, reduce the depressing force and avoid erroneously triggering the switch.

Abstract: A mouse device includes an upper cover, an intermediate cover, a lower cover, a circuit board, and two switches. Two protrusion posts of the upper cover are respectively penetrated through two perforations of the intermediate cover. Two first pivotal parts of the upper cover are respectively connected with two second pivotal parts of the intermediate cover. The upper cover is fixedly connected to an annular sidewall of the lower cover. The circuit board and the two switches are disposed on the lower cover. When the upper cover is rotated relative to the intermediate cover through the two first pivotal parts and two second pivotal parts, one of the two switches is triggered by the corresponding protrusion post so as to generate a corresponding electronic signal. The use of the present mouse device can prevent from introducing foreign matters, reduce the depressing force and avoid erroneously triggering the switch.