Abstract: Systems and methods are provided for excitation spectral microscopy using frame-synchronized acousto-optic scanning of fluorescent excitation wavelengths. Linear unmixing of the images of targets of components that are individually labeled with different fluorophores can be simultaneously imaged with high temporal resolution and low crosstalk and the local abundance of each fluorophore at each pixel can be quantified. Fluorophore decomposed micrographs of the sample can be obtained by rendering the abundance in each pixel as an image.

Abstract: There is provided a smoke detector including a first light source, a second light source surface, a light sensor and a processor. The light sensor receives reflected light when the first light source and the second light source emit light, and generates a first detection signal corresponding to light emission of the first light source and a second detection signal corresponding to light emission of the second light source. The processor distinguishes smoke and floating particles according to a similarity between the first detection signal and the second detection signal.

Abstract: The disclosure provides a projection lens module and a projector having the projection lens module, which may effectively suppress the shaking of the projection lens. The projection lens module includes two casings, a projection lens and a carrier structure. The projection lens is disposed between the two casings. The carrier structure includes a bracket, at least one screwing member, and two buffer members. The bracket has at least one aperture, and the screwing member passes through the aperture to lock the bracket to the projection lens. A diameter of the aperture in a first direction is greater than a diameter of the aperture in a second direction perpendicular to the first direction. The two buffer members are respectively disposed on opposite ends of the bracket and lean against the two casings in the first direction, respectively.

Abstract: Aspects of this disclosure relate to a tunable filter with harmonic rejection. The tunable filter includes mutually coupled inductors and a tunable capacitance circuit electrically connected to at least one of the mutually coupled inductors. The tunable capacitance circuit includes N switches configured to adjust effective capacitance of the tunable capacitance circuit to tune harmonic rejection of the tunable filter for at least 2×2N harmonics. The tunable filter can filter a radio frequency signal. Related methods, radio frequency systems, radio frequency modules, and wireless communication devices are also disclosed.

Abstract: There is provided a fire alarm device including multiple light sources, a light sensor, a first processor and a second processor. In a standby mode, the first processor identifies whether to wake up the second processor according to a detection result of the light sensor obtained by detecting emission light of one of the multiple light sources. The second processor identifies whether to generate an alarm according to a detection result of the light sensor obtained by detecting emission light of the multiple light sources. The fire alarm device further includes a thermal sensor for providing detected temperature values to the first processor and/or the second processor to perform the identifying procedure.

Abstract: The present invention provides an LED illumination device, including: a light source carrier including a base, an accommodating space formed on the base; a light emitting unit including a light emitter and a lamp board fixed to the light source carrier; and an optical member covering or at least partially covering the light emitting unit. The light emitting unit and the optical member are both disposed in the accommodating space. The optical member includes a first light distribution unit and a second light distribution unit. At least 70% of a luminous flux generated by the light emitter in operation is directly emitted from the LED illumination device through the second light distribution unit.

Abstract: A method of fabricating magnetoresistive random access memory, including providing a substrate, forming a bottom electrode layer, a magnetic tunnel junction stack, a top electrode layer and a hard mask layer sequentially on the substrate, wherein a material of the top electrode layer is titanium nitride, a material of the hard mask layer is tantalum or tantalum nitride, and a percentage of nitrogen in the titanium nitride gradually decreases from a top surface of top electrode layer to a bottom surface of top electrode layer, and patterning the bottom electrode layer, the magnetic tunnel junction stack, the top electrode layer and the hard mask layer into multiple magnetoresistive random access memory cells.

Abstract: A magnetoresistive random access memory (MRAM) structure is provided in the present invention, including multiple MRAM cells, and an atomic layer deposition dielectric layer between and at outer sides of the MRAM cells, wherein the material of top electrode layer is titanium nitride, and the nitrogen percentage is greater than titanium percentage and further greater than oxygen percentage in the titanium nitride, and the nitrogen percentage gradually increases inward from the top surface of top electrode layer to a depth and then start to gradually decrease to a first level and then remains constant, and the titanium percentage gradually decreases inward from the top surface of top electrode layer to the depth and then start to gradually increase to a second level and then remains constant.

Abstract: There is provided a smoke detector including a light source, a reflective surface, a light sensor and a processor. The light sensor receives reflected light when the light source emits light toward the reflective surface, and generates a reference detection signal when there is no smoke. The processor receives the detection signal from the light sensor, and automatically selects a set of predetermined condition thresholds according to a profile of the detection signal to be compared with the detection signal thereby determining whether to generate an alarm according to the comparison result.

Abstract: A method for fabricating a semiconductor device includes the steps of forming a gate structure on a substrate, forming an interlayer dielectric (ILD) layer on the gate structure, forming a contact hole in the ILD layer adjacent to the gate structure, performing a plasma doping process to form a doped layer in the ILD layer and a source/drain region adjacent to the gate structure, forming a conductive layer in the contact hole, planarizing the conductive layer to form a contact plug, removing the doped layer to form an air gap adjacent to the contact plug, and then forming a stop layer on the ILD layer and the contact plug.

Abstract: A method for fabricating a semiconductor device includes the steps of forming a gate structure on a substrate, forming a contact etch stop layer (CESL) on the gate structure, forming an interlayer dielectric (ILD) layer on the CESL, forming a contact plug in the ILD layer and adjacent to the gate structure, forming a first stop layer on the ILD layer, and removing the first stop layer and the ILD layer around the gate structure to form an air gap exposing the CESL.

Abstract: Aspects of this disclosure relate to a radio frequency system with tunable notch filtering. The radio frequency system includes a first tunable filter and a second tunable filter. The first tunable filter is coupled between an output of a power amplifier and a radio frequency switch. The second tunable filter includes mutually coupled inductors and a tunable impedance circuit electrically connected to at least one of the mutually coupled inductors. The second tunable filter is coupled between an antenna switch and an antenna node. Related methods and wireless communication devices are also disclosed.

Abstract: According to at least one aspect of the disclosure, a front-end module is provided comprising an input configured to receive a radio-frequency signal, an output configured to be coupled to an antenna, a balun coupled to the output, one or more power amplifiers coupled to the input, and an inverter coupled between the one or more power amplifiers and the balun, the inverter being configured to provide output impedance matching to the one or more power amplifiers.

Abstract: A method for controlling an asynchronous induction motor, a control device for implementing the method, a motor system including the control device, and a computer-readable storage medium on which a computer program for implementing the method is stored. The method for controlling the asynchronous induction motor includes: A. determining a target value of d-axis current according to a target value of q-axis current of the asynchronous induction motor; B. determining a correction value of the target value of the d-axis current based on q-axis voltage and d-axis voltage of the asynchronous induction motor; and C. determining target values of the d-axis voltage and the q-axis voltage of the asynchronous induction motor based on the correction value of the target value of the d-axis current and the target value of the q-axis current.

Abstract: An electronic device of an embodiment of the disclosure includes a first substrate, a second substrate, and a driving layer. The first substrate and the second substrate are disposed opposite to each other, and the driving layer is disposed between the first substrate and the second substrate. The driving layer includes a scan line and a data line. The scan line is disposed on the first substrate and includes a first scan line segment. The first scan line segment has an opening and includes a first branch and a second branch. The first branch and the second branch are located on two opposite sides of the opening and are electrically connected in parallel with each other. The data line is disposed on the first substrate and intersects with the scan line. The electronic device of the embodiment of the disclosure may exhibit ideal display effect.

Abstract: A magnetoresistive random access memory (MRAM), including a bottom electrode layer on a substrate, a magnetic tunnel junction stack on the bottom electrode layer, a top electrode layer on the magnetic tunnel junction stack, and a hard mask layer on said top electrode layer, wherein the material of top electrode layer is titanium nitride, a material of said hard mask layer is tantalum or tantalum nitride, and the percentage of nitrogen in the titanium nitride gradually decreases from the top surface of top electrode layer to the bottom surface of top electrode layer.

Abstract: A projection device configured to provide multiple projection modes is provided. The projection device includes a housing module and a projection module. The housing module includes a display screen and multiple protective walls. The display screen includes a display curved surface. The projection module includes an optomechanical assembly and a light guide assembly. In a first projection mode, the optomechanical assembly projects an image light beam to the light guide assembly along a first axis. The light guide assembly projects the image light beam to the display curved surface along a second axis, where the first axis and the second axis are not parallel to each other. In a second projection mode, the light guide assembly is moved out of a transmission path of the image light beam, so that the image light beam is directly projected out of the projection device.

Abstract: In some embodiments, an electronic device displays suggested routes based on the characteristics of respective vehicles. In some embodiments, an electronic device receives data for respective vehicles from a source external to the electronic device. In some embodiments, an electronic device anonymizes a vehicle identifier and determines customized suggested routes using the anonymized vehicle identifier.