Abstract: A tool life prediction method according to the present disclosure comprises: allowing a target tool having a rake surface and a clearance surface to perform cutting under specific test conditions; obtaining three-dimensional shape data including the rake surface and the clearance surface of the target tool performing the cutting; calculating the wear volume from a difference between a first cross-sectional profile corresponding to the three-dimensional shape data and a second cross-sectional profile corresponding to shape data before processing; obtaining an immeasurable value in a tool wear volume calculation formula through simulation; deriving a plurality of constant values included in the tool wear volume calculation formula, based on the wear volume and the value obtained through the simulation; and predicting the wear volume of the tool by using the derived constant values.

Abstract: A circuit board according to an embodiment includes a first insulating layer; and a second insulating layer disposed on an upper surface of the first insulating layer, wherein the second insulating layer includes a cavity, and the cavity has a planar shape including a plurality of convex parts convex toward an inner direction of the second insulating layer.

Abstract: The present disclosure relates to a novel salt of a 1-sulfonyl pyrrole derivative, and to a novel salt having excellent solubility in vivo, stability, bioavailability, and the like, a preparation method thereof, and a pharmaceutical composition comprising the same.

Abstract: An apparatus for substrate dicing includes: a laser beam emitter outputting a laser beam; a stage on which a test substrate is loaded, wherein the test substrate includes a sample substrate and a test film; a laser beam modulator modulating the laser beam to output a modulated beam; an optical system transferring the modulated beam into the sample substrate; a camera capturing the modulated beam that is reflected from the test film; and a controller generating a control signal based on at least one of a reaction point being formed in the test film or a shape of the reaction point of the test film being biased toward one side with respect to a central axis, wherein the laser beam modulator is configured to modulate the laser beam based on the control signal to output the modulated beam.

Abstract: A display device includes: a display panel including first and second surfaces, which are opposite to each other, an elastic member disposed on the first surface, a first rigid member disposed on the elastic member, and a panel support member disposed on the second surface, wherein the first rigid member includes at least one of polyethylene terephthalate (PET), polyimide, and ultra-thin glass (UTG), and the elastic member includes at least one of a dilatant, polyether block amide (PEBA), and thermoplastic polyurethane (TPU).

Abstract: A semiconductor memory device includes a stacked structure on a substrate and a vertical structure penetrating the stacked structure. The stacked structured includes a plurality of conductive lines stacked on the substrate. The vertical structure may include a vertical insulating pattern and a channel film extending along sidewalls of the vertical insulating pattern. The vertical insulating pattern may include an inner region and an outer region. The outer region of the vertical insulating pattern may be placed between the channel film and the inner region of the vertical insulating pattern, and the outer region of the vertical insulating pattern may include a diffused metal.

Abstract: A circuit board according to an embodiment includes a first insulating layer; a first pattern layer disposed on an upper surface of the first insulating layer; and a second insulating layer disposed on the upper surface of the first insulating layer and an upper surface of the first pattern layer and including a cavity, wherein the upper surface of the first insulating layer includes a first upper surface corresponding to a lower surface of the cavity, and a second upper surface having a step difference from the first upper surface and not vertically overlapping the lower surface of the cavity, wherein the first pattern layer includes a first pattern part disposed on the first upper surface, and a second pattern part disposed on the second upper surface, and wherein a thickness of the first pattern part is smaller than a thickness of the second pattern part.

Abstract: A mobile bidirectional sterilization device includes a removable mobile bidirectional sterilization device in which a light guiding plate made of a light guiding film is connected from a power charger to a hinged cover through a curved connection section to emit visible light of a light-emitting diode (LED) to front, rear, and lateral surfaces of a mobile device or a fixed mobile bidirectional sterilization device in which the light guiding plate made of the light guiding film emits the visible light of the LED to the rear and front surfaces of the mobile device at a console bracket and a center fascia charger, solves a problem of harmfulness to the human body and a problem of directivity and transmittance due to an omnidirectional sterilization effect of the mobile device by the visible light with a 405 nm wavelength.

Abstract: A bidirectional sterilization type console arm rest device includes a first sterilization light generator configured to generate visible light emitted to front surfaces of belongings in an arm rest, and a second sterilization light generator configured to generate visible light emitted to rear surfaces of belongings in a console inner space. Therefore, sterilization by the visible light can solve the problem of harmfulness to the human body and the problem of light directivity and transmittance and maximize a sterilization effect by light diffusion of a light guiding film and, particularly, due to a separation structure of a light source and a light guiding film, the light guiding film also comes out of a belongings storage space so that usability of the tray as well as utilization of the storage space can be increased.

Abstract: An electric compressor, an inverter assembly jig and an inverter manufacturing method, an inverter of the compressor includes a frame coupled to a circuit board, the frame includes a base plate opposite the circuit board, fixing means protruding from the base plate and supporting an outer periphery of the circuit board, and a through-hole formed at a position corresponding to the fixing means, the inverter assembly jig includes an expansion pin inserted into the through-hole, and an expansion pin actuation mechanism moving the expansion pin closer to and away from the fixing means, the inverter method includes inserting the expansion pin into the through-hole, manipulating the expansion pin actuation mechanism to deform the fixing means, seating the circuit board on the base plate, and manipulating the expansion pin actuation mechanism so that the fixing means is restored and coupled to the circuit board.

Abstract: An electric compressor, an inverter assembly jig and an inverter manufacturing method, an inverter of the compressor includes a frame coupled to a circuit board, the frame includes a base plate opposite the circuit board, fixing means protruding from the base plate and supporting an outer periphery of the circuit board, and a through-hole formed at a position corresponding to the fixing means, the inverter assembly jig includes an expansion pin inserted into the through-hole, and an expansion pin actuation mechanism moving the expansion pin closer to and away from the fixing means, the inverter method includes inserting the expansion pin into the through-hole, manipulating the expansion pin actuation mechanism to deform the fixing means, seating the circuit board on the base plate, and manipulating the expansion pin actuation mechanism so that the fixing means is restored and coupled to the circuit board.

Abstract: The present invention provides a tailgate switching device comprising: a housing (100) configured to at least partially allow a flexible operation; a substrate (200) disposed within the housing (100); a switching unit (300) including a switching terminal (330) configured to be at least partially movable within the housing (100) through at least partial pressing of the housing (100) and at least partially disposed on the substrate unit (200) to cause a signal change to occur through the relative movement between the switching terminal (330) and the housing (100)/the substrate unit (200); and a cable (400) directly connected at one end thereof to the substrate unit (200) and connected at the other end thereof to the outside of the housing (100).

Abstract: An atomic layer etching method using a ligand exchange reaction may include a substrate providing step of putting a substrate with a thin film formed thereon into a reaction chamber, a halogenated thin film forming step of forming a halogenated thin film on a surface of the thin film by infusing a halogenated gas into the reaction chamber, and an etching step of etching the halogenated thin film by infusing a ligand without a metal or metal precursor into the reaction chamber with the substrate with the halogenated thin film.

Abstract: The dishwasher of one embodiment comprises a tub, a sump, a wash pump, a rack, a nozzle disposed at a lower end of the rack, rotated by a repulsive force of wash water supplied from the wash pump, spraying wash water to a wash target, and having a magnetic object coupled to one end of the nozzle so that a first pole and a second pole of the magnetic object face a rotation direction of the nozzle, a sensing module that senses a magnetic force generated by the magnetic object generated by a rotation of the nozzle, and a controller receiving sensing results from the sensing module, and determining one or more of a rotation direction of the nozzle, a rotation speed of the nozzle and whether the nozzle rotates, to output an abnormality notification to a user or control wash water supplied to the nozzle through the wash pump.

Abstract: There is disclosed a sensor fixing member and a dishwasher including the sensor fixing member. A dishwasher may include a case defining an exterior and having an open front; a door sealing the open front of the case and comprising a door panel and a door cover covering the door panel; a nozzle spraying washing water into the case; a nozzle restriction detecting sensor provided inside the door and disposed at a height equal to the height of the nozzle from a bottom surface; and a sensor fixing member having one side coupled to the nozzle restriction detecting sensor and the other side coupled to the door.

Abstract: The present disclosure relates to a dishwasher.

Abstract: A non-volatile memory device includes a substrate having a cell array region and an extension region. A mold structure includes a plurality of gate electrodes and a plurality of mold insulating layers alternately stacked on the substrate such that the mold structure has a step shape that steps downwardly in the extension region in a direction away from the cell array region. A channel structure penetrates through the mold structure in the cell array region, and a cell contact structure penetrates through the mold structure in the extension region. A portion of the cell contact structure is in contact with a portion of an uppermost one of the gate electrodes. The cell contact structure includes a first portion in contact with a side surface of the uppermost one of the gate electrodes and a second portion in contact with a top surface of the uppermost one of the gate electrodes. A width of the first portion is smaller than a width of the second portion.

Abstract: A surgical handpiece comprises, in the form of a magazine, electronic components composed of a printed circuit board mounted on a hand grip part of the handpiece and various sensor modules provided on the printed circuit board, and the surgical handpiece is easy to maintain since the repair thereof is completed by replacing a magazine. The surgical handpiece comprises a pistol-shaped housing composed of the hand grip and a motor housing integrally formed on the top of the hand grip, wherein the hand grip comprises a grip body and a magazine groove which is formed inside the grip body and into which the magazine-type electronic component module is inserted and mounted.