Abstract: An apparatus for producing trifluoramine oxide includes: a reactor in which a photochemical reaction for generating trifluoramine oxide by using vapor-phase FNO and F2 as starting materials is performed; an ultraviolet irradiation means for irradiating ultraviolet rays having a peak wavelength in a wavelength band of 300 nm to 400 nm into the reactor; and a separation and collection means which is in vapor communication with the reactor, separating and collecting generated trifluoramine oxide from reaction products generated in the reactor. The ultraviolet rays are such that an intensity of rays having a wavelength band of less than 300 nm is less than 5% of an intensity of rays having a wavelength band of 300 nm to 400 nm.

Abstract: In a driving video recording system and a manufacturing method of the same, the driving video recording system includes a camera module for monitoring the surroundings of a vehicle; then first memory for storing a video transmitted from the camera module; the second memory for storing a computer program for controlling the storage of the video; and a controller including a processor for executing the computer program, wherein the computer program includes a contamination classification deep training network model, and the processor is configured to determine whether video data obtained by the camera module through the deep-learning network model is contaminated through the execution of the computer program.

Abstract: A non-volatile memory chip comprises a cell region that includes a first surface, a second surface opposite to the first surface, a first cell structure, and a second cell structure spaced apart from the first cell structure; a peripheral circuit region on the first surface of the cell region, and that includes a first peripheral circuit connected to the first cell structure, a second peripheral circuit connected to the second cell structure, and a connection circuit between the first and second peripheral circuits; a through via between the first and second cell structures and that extends from the second surface of the cell region to the connection circuit of the peripheral circuit region; a redistribution layer that covers the through via on the second surface of the cell region, is connected to the through via, and extends along the second surface; and a chip pad connected to the redistribution layer.

Abstract: There is provided a method for etching a silicon-containing film. The method includes: introducing a substrate having a first silicon-containing film and a second silicon-containing film into a process chamber of an etching apparatus; supplying at least one etching gas including F3NO into the process chamber; applying a predetermined power to the process chamber maintained at a predetermined pressure to generate direct plasma in the process chamber; and etching the first silicon-containing film on the substrate by reactive species (radicals) of the etching gas activated by the direct plasma. The predetermined pressure is set within a predetermined range in which the slope of the etch rate of the first silicon-containing film with respect to the pressure differs from the slope of the etch rate of the second silicon-containing film with respect to the pressure in terms of sign.

Abstract: An earphone having an under hanger reduces movement of the earphone from vibrations that occur while a user is typically in motion. The earphone preferably includes: a housing for housing a speaker therein; a protector installed in a front surface of the housing and having a mesh for delivering a sound from the speaker; and an under hanger provided at a lower part of the housing to closely contact along a lower part of the rear side of an earflap of a user. The provision of an under hanger in a lower part of the earphone prevents from being easily separated from a user's ear. Further, by providing an under hanger made of a soft material, as the earphone closely contacts with the user's ear, a sound quality is improved and a wearing feeling of the earphone is improved.

Abstract: A wireless audio output device, a wireless audio output system including the same and a control method thereof are disclosed. When a user approaches the output device, while listening to music on a portable device, the output device automatically connects the wireless audio output system to the portable device, to reproduce the music of the portable device. The control method includes detecting the user, detecting the portable device if the user is sensed, and outputting an audio file being reproduced by the portable device using the wireless audio output system, if the portable device is detected.

Abstract: An earphone having an under hanger reduces movement of the earphone from vibrations that occur while a user is typically in motion. The earphone preferably includes: a housing for housing a speaker therein; a protector installed in a front surface of the housing and having a mesh for delivering a sound from the speaker; and an under hanger provided at a lower part of the housing to closely contact along a lower part of the rear side of an earflap of a user. The provision of an under hanger in a lower part of the earphone prevents from being easily separated from a user's ear. Further, by providing an under hanger made of a soft material, as the earphone closely contacts with the user's ear, a sound quality is improved and a wearing feeling of the earphone is improved.

Abstract: A wireless audio output device, a wireless audio output system including the same and a control method thereof are disclosed. When a user approaches the output device, while listening to music on a portable device, the output device automatically connects the wireless audio output system to the portable device, to reproduce the music of the portable device. The control method includes detecting the user, detecting the portable device if the user is sensed, and outputting an audio file being reproduced by the portable device using the wireless audio output system, if the portable device is detected.

Abstract: An omni-directional speaker system having a speaker unit fixed in a speaker cabinet, a first reflecting plate having a hole installed in the speaker cabinet for dispersing sound waves emitted from the speaker unit, and a second reflecting plate disposed over the hole of the first reflecting plate.