Abstract: A projection type transparent display includes a polarization modulator and a reflective layer. The polarization modulator is stacked in sequence by a linear polarizer, a liquid crystal layer and a phase retarder. The reflective layer is stacked on the phase retarder. A projection light is incident on the linear polarizer to form a linearly polarized light. The liquid crystal layer changes a polarization direction of the linearly polarized light. Two kinds of linearly polarized projection lights with polarization directions orthogonal to each other are respectively formed and pass through the phase retarder to respectively form two kinds of circularly polarized projection lights with opposite rotation directions. A background light is incident on the reflective layer.

Abstract: An etchant for etching a cobalt-containing member in a semiconductor structure includes a fluorine-free acid and an alkaline solution, a rate of etching a cobalt-containing member by the etchant is greater than a rate of etching a nitride-containing member by the etchant, and a level of dissolved oxygen of the etchant is less than or equal to 100 ppb. A semiconductor structure, includes a plurality of epitaxial structures over a substrate, a gate structure over the substrate and between two of the plurality of epitaxial structures; a cobalt-containing member over one of the epitaxial structures and adjacent to the gate structure; and a dielectric member over the cobalt-containing member, wherein a top surface of the cobalt-containing member is formed by etching a portion of the cobalt-containing member using an etchant including a fluorine-free acid and an alkaline solution.

Abstract: A projection type transparent display includes a polarization modulator and a reflective layer. The polarization modulator is stacked in sequence by a linear polarizer, a liquid crystal layer and a phase retarder. The reflective layer is stacked on the phase retarder. A projection light is incident on the linear polarizer to form a linearly polarized light. The liquid crystal layer changes a polarization direction of the linearly polarized light. Two kinds of linearly polarized projection lights with polarization directions orthogonal to each other are respectively formed and pass through the phase retarder to respectively form two kinds of circularly polarized projection lights with opposite rotation directions. A background light is incident on the reflective layer.

Abstract: For processing cost reduction and improvement of efficiency, a no-mold-runner multi-nozzle device, comprising: an injection machine, a multi-nozzle component, a front template, and a no-mold-runner. The multi-nozzle component includes a plurality of nozzles, which is connected to the injection machine. The injection machine is used to inject a mixture of molding material and supercritical fluid into multiple nozzles. The front template is provided with a plurality of first passage holes. The no-mold-runner is provided with a mold cavity and a plurality of second passage holes communicating with the mold cavity. The nozzle correspondingly passes through a plurality of first passage holes and second passage holes and is installed in cooperation. By controlling the opening or closing of the nozzle, the mixed material of the molding material and the supercritical fluid enters the mold cavity or stops entering the mold cavity.

Abstract: A method for behavior vectorization of information de-identification, through which data concerning browsing traces, link paths, trigger events, clicks, and operation behaviors of network users on the Internet are selected by a server, a client device, or an edge device for performing a conversion/integration process. Then, the integrated data are converted into a vector. The vector represents the profile of the usage behavior of the network users. Moreover, because vectors can be quickly grouped and classified to find similar groups, it can quickly identify the network users. The server uses the supervised learning method as the base method, and uses pre-defined network behaviors for training. Also, the semi-supervised learning method or the unsupervised learning method can be employed to modify undefined network behaviors to better conform to the profile description of the network users.

Abstract: A method of etching a cobalt-containing member in a semiconductor structure includes providing an etchant including a fluorine-free acid and an alkaline solution having a pH value between 8.5 and 13, and etching the cobalt-containing member in the semiconductor structure using the etchant, wherein a rate of etching the cobalt-containing member by the etchant is substantially greater than a rate of etching a nitride-containing member by the etchant. An etchant for etching a cobalt-containing member in a semiconductor structure includes a fluorine-free acid, and an alkaline solution having a pH value between 8.5 and 13; wherein a rate of etching a cobalt-containing member by the etchant is substantially greater than a rate of etching a nitride-containing member by the etchant, and a level of dissolved oxygen of the etchant is substantially less than or equal to 100 ppb.

Abstract: In an embodiment, a method for shaping a PWM signal includes: receiving an input PWM signal; generating an output PWM signal based on the input PWM signal by: when the input PWM signal transitions with a first edge of the input PWM signal, transitioning the output PWM signal with a first edge of the output PWM signal; and when the input PWM signal transitions with a second edge before the first edge of the output PWM signal transitions, delaying a second edge of the output PWM signal based on the first edge of the output PWM signal.

Abstract: A method of forming a semiconductor device including performing an ion implantation on a substrate and etching the substrate and semiconductor devices formed by the same are disclosed. In an embodiment, a method includes forming a transistor on a first side of a substrate; performing an ion implantation on a second side of the substrate opposite the first side; after performing the ion implantation, etching the substrate to remove the substrate and form a first recess; and forming a dielectric layer in the first recess.

Abstract: A halide material having general formula ArMAX is disclosed. The halide material can be processed to an optoelectronic film with a halogenated formamidine and a lead halide, and the optoelectronic film can be applied in the manufacture of an optoelectronic device like a perovskite laser or a PeLED. Experimental data have proved that, the fabricated optoelectronic film shows a property of photoluminescence (PL) peak wavelength adjustable. Moreover, the PL peak wavelength moves from 482 nm to 534 nm with the increase of the content of lead (Pb), halogen (X) and formamidine (FA) in the optoelectronic film Furthermore, experimental data have also indicated that, the fabricated optoelectronic film can be used as a blue emissive layer, a red emissive layer or a green emissive layer, thereby having a significant potential for application in optoelectronics industry.

Abstract: A smart window includes two transparent substrates and a liquid crystal layer. The two transparent substrates are opposite to each other and are electrically connected to a voltage supply. A first pulse voltage or a second pulse voltage is provided between the two transparent substrates by the voltage supply. The liquid crystal layer is located between the two transparent substrates and has a liquid crystal material. The liquid crystal material has a pitch of at most 250 nanometers or at least 500 nanometers. The liquid crystal material includes a nematic liquid crystal, a rotatory molecule, and a photochromic dye mixed with each other. The liquid crystal material changes a transmittance corresponding to a specific light wavelength range when receiving a light. The liquid crystal material is switched between a planar texture and a focal-conic texture respectively according to the first pulse voltage and the second pulse voltage.

Abstract: Method and system for determining and reclassifying valuable words, wherein a large amount of text and valuable words are pre-inputted into a word processing server for machine learning. Moreover, the word processing server is trained on the valuable words and many labels associated with the valuable words such that it can learn and determines the valuable words in the text that meet the definition of the valuable word. The valuable word is further extracted from the text and re-classified after extraction. In addition, each valuable word is provided with various relevance labels to facilitate the subsequent application of the valuable words.

Abstract: Method and system for extracting valuable words and forming a valuable word net, wherein a server is employed to collect contents of articles from internet sources, EDM texts (email direct marketing), product descriptions and other texts, and extract valuable words by machine learning. Each valuable word performs connection weight based on the number of times the text has been read, the number of times the text has been clicked, the number of times the text has been cited, the correlation of external sites, the conversion of expert knowledge, the probability space, the Shannon entropy, the spatial distribution and other values and their conversion by machine learning; then the linked valuable words are integrated to form a valuable word net. When the valuable words are needed to be used, the valuable words and the valuable word net can be retrieved from the database for subsequent applications.

Abstract: Method and system for classifying and labeling images, which can perform segmentation based on features of each part of images, classify and match the image and the segmented image based on a classification model built by the machine learning method. Meanwhile, each image is assigned with labels and text descriptions. The system also includes a string module assigning the image with a plurality of matching labels and text descriptions that are the most relevant in recent times. Furthermore, the classification model is trained by machine learning method such as an unsupervised learning, a self-supervised learning, or a heuristic algorithms. In addition, a character recognition module is provided to extract characters in the image for comprehensive learning and calculations to facilitate classification and labeling of the image.

Abstract: A method of etching a cobalt-containing member in a semiconductor structure includes providing an etchant including a fluorine-free acid and an alkaline solution having a pH value between 8.5 and 13, and etching the cobalt-containing member in the semiconductor structure using the etchant, wherein a rate of etching the cobalt-containing member by the etchant is substantially greater than a rate of etching a nitride-containing member by the etchant. An etchant for etching a cobalt-containing member in a semiconductor structure includes a fluorine-free acid, and an alkaline solution having a pH value between 8.5 and 13; wherein a rate of etching a cobalt-containing member by the etchant is substantially greater than a rate of etching a nitride-containing member by the etchant, and a level of dissolved oxygen of the etchant is substantially less than or equal to 100 ppb.

Abstract: A kit for converting trimmer to lawnmower is disclosed. The kit comprises blade stand, edge support and variety of blades and strings. The kit is compatible with all the existing grass trimmers present in market. In an embodiment of the present invention, the user can easily adjust the cutting height by adjusting the height of blade stand on the edge support. In an embodiment of the present invention, the blade stand comprise of edge support that is an aluminum or steel loop structure to provide wide variety of height levels to blade stand for cutting brushes. The blade stand and edge support comprise of holes drilled in them such that blade stand can be screwed to edge support at variety of height levels.

Abstract: A reflective display apparatus includes three liquid crystal modules stacked in sequence for an incident light to enter from top to bottom sequentially. Each liquid crystal module includes a liquid crystal layer disposed between two substrates. A switchable electric field and a vertical alignment force are provided by the two substrates to the liquid crystal layer. The three liquid crystal modules are respectively: a blue light liquid crystal module located at a top layer, a green light liquid crystal module located in a middle layer and having the liquid crystal layer doped with a dichroic dye for absorbing a light within a blue light wavelength range, and a red light liquid crystal module located at a bottom layer and having the liquid crystal layer doped with a dichroic dye for absorbing a light within a green light wavelength range. A method for controlling the reflective display apparatus is also disclosed.

Abstract: In an embodiment, a method for shaping a PWM signal includes: receiving an input PWM signal; generating an output PWM signal based on the input PWM signal by: when the input PWM signal transitions with a first edge of the input PWM signal, transitioning the output PWM signal with a first edge of the output PWM signal; and when the input PWM signal transitions with a second edge before the first edge of the output PWM signal transitions, delaying a second edge of the output PWM signal based on the first edge of the output PWM signal.

Abstract: A smart window includes two transparent substrates and a liquid crystal layer. The two transparent substrates are opposite to each other and are electrically connected to a voltage supply. A first pulse voltage or a second pulse voltage is provided between the two transparent substrates by the voltage supply. The liquid crystal layer is located between the two transparent substrates and has a liquid crystal material. The liquid crystal material has a pitch of at most 250 nanometers or at least 500 nanometers. The liquid crystal material includes a nematic liquid crystal, a rotatory molecule, and a photochromic dye mixed with each other. The liquid crystal material changes a transmittance corresponding to a specific light wavelength range when receiving a light. The liquid crystal material is switched between a planar texture and a focal-conic texture respectively according to the first pulse voltage and the second pulse voltage.

Abstract: A filtering circuit for filtering a pulse width modulated (PWM) signal includes a D flip-flop having an input terminal configured to be coupled to a logic high signal and having an output terminal coupled to an output terminal of the filtering circuit; and a circuit coupled between an input terminal of the filtering circuit and the D flip-flop, the circuit configured to, for a first pulse of the PWM signal having a duty cycle within a pre-determined range: generate a positive pulse at a clock terminal of the D flip-flop as a clock signal of the D flip-flop; and generate a negative pulse at a reset terminal of the D flip-flop as a reset signal of the D flip-flop, wherein a duration between a rising edge of the positive pulse and a falling edge of the negative pulse is equal to a duration of the first pulse of the PWM signal.

Abstract: A light-emitting wireless charging structure includes a base, a wireless charging module, a light-emitting element and an upper cover. The wireless charging module is disposed on the base. The light-emitting element is disposed on the base adjacent to the wireless charging module. The upper cover covers the wireless charging module and the light-emitting element. The upper cover has a lower surface facing the wireless charging module and an upper surface opposite to the bottom surface. When the light-emitting element emits light, light coming from the light-emitting element passes through the upper cover and forms a mark on the upper surface to indicate the position of the wireless charging module. When the light-emitting element is turn off or kept in an off state, either the mark that has been formed on the upper surface disappears therefrom or no any mark is ever shown on the top surface.