Abstract: The present disclosure relates to a plurality of host materials, an organic electroluminescent compound, and an organic electroluminescent device comprising the same. By comprising a specific combination of compounds according to the present disclosure as a plurality of host materials or by comprising the compound according to the present disclosure, it is possible to produce an organic electroluminescent device having lower driving voltage, higher luminous efficiency, and/or longer lifetime properties compared to the conventional organic electroluminescent devices.

Abstract: A positive electrode active material, a method of preparing the same, and a positive electrode and lithium secondary battery including the same are disclosed herein. In some embodiments, a positive electrode active material includes a lithium transition metal oxide which contains 60 mol % or more of nickel based on a total number of moles of transition metals excluding lithium in the lithium transition metal oxide, wherein the oxide is in a form of a secondary particle which is an aggregate of primary particles, wherein the lithium transition metal oxide satisfies Equation 1: 1 ? x y ? 20 Wherein x is a minimum area of a rectangle including all pores having an area greater than 0.002 ?m2 among closed pores distributed in the secondary particle, and y is a total sum of areas of the pores having an area greater than 0.002 ?m2 among the closed pores distributed in the secondary particle.

Abstract: The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By comprising the compound according to the present disclosure, an organic electroluminescent device having improved driving voltage, power efficiency and/or lifetime characteristics compared to conventional organic electroluminescent devices can be provided.

Abstract: Disclosed is a method of depositing thin film, the method comprising: supplying an adduct precursor to the inside of a chamber in which a substrate including at least one gap feature is placed so that the adduct precursor is adsorbed to the substrate; purging the interior of the chamber; and supplying a reaction material to the inside of the chamber so that the reaction material reacts with the adduct precursor to form the thin film and fill the gap feature, wherein the adduct precursor is formed by mixing 1 to 5 moles of a compound and 1 to 5 moles of a metal compound.

Abstract: Disclosed is a method for manufacturing an aluminum precursor formed by mixing 1 to 3 moles of a compound represented by the following Chemical Formula 1 or following Chemical Formula 2 and 1 to 3 moles of a compound represented by the following Chemical Formula 3. wherein X is O or S, and R1 or R2 is each independently selected from an alkyl group having 1 to 8 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms, and an aryl group having 6 to 12 carbon atoms. wherein X is O or S, n is 1 to 5, and R1 to R4 are each independently selected from a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms, and an aryl group having 6 to 12 carbon atoms. wherein R1, R2 and R3 are different from each other, and each independently selected from a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a dialkylamine having 1 to 6 carbon atoms, a cycloamine group having 1 to 6 carbon atoms, or a halogen atom.

Abstract: A coil component includes: a body; a coil portion disposed in the body and including a lead-out pattern exposed on one end surface of the body; an insulating layer disposed on the one end surface of the body and having an opening disposed on the lead-out pattern; an external electrode including a connection portion, disposed to be in contact with the lead-out pattern, and a pad portion extending from the connection portion to one surface of the body; and a cover insulating layer disposed on the one end surface of the body to cover the connection portion. The connection portion is spaced apart from all corner portions of the one end surface of the body, except for a corner portion between the one end surface of the body and one surface of the body, on the one end surface of the body.

Abstract: A coil component includes a body; a coil portion disposed in the body and including a lead-out pattern; an external electrode disposed on a first surface of the body; and a plurality of connection vias disposed in the body, connecting the external electrode to the lead-out pattern, and integrated with each other, wherein, in each of the plurality of connection vias, a size of an end surface area of a lower portion adjacent to the external electrode is different from a size of an end surface area of an upper portion adjacent to the lead-out pattern.

Abstract: A multilayer chip bead includes: a body including a coil portion and cover layers disposed on upper and lower surfaces of the coil portion; first and second external electrodes disposed on external surfaces of the body; and a coil disposed in the coil portion, including coil patterns having a spiral shape and lead patterns, and having both end portions connected to the first and second external electrodes, respectively, through the lead patterns. A width of the lead pattern is smaller than that of the coil pattern.

Abstract: The present invention relates to a negative electrode active material for a secondary battery, a conductive composition for a secondary battery, a negative electrode material including the same, a negative electrode structure and secondary battery including the same, and a method for manufacturing the same. The present invention includes: a silicon particle; and an amorphous surface layer formed on the surface of the silicon particle. According to the present invention, the negative electrode structure is formed of a composite of a silicon particle and carbon or lithium ion, the oxygen contents of the solid electrolyte and silicon particles are low, and thus aggregation of silicon particles is inhibited. Therefore, in the event of using the negative electrode structure in a negative electrode, a power storage device such as a lithium secondary battery may have high energy density, high output density, and a longer charging/discharging life cycle.

Abstract: A multilayer chip bead includes: a body including a coil portion and cover layers disposed on upper and lower surfaces of the coil portion; first and second external electrodes disposed on external surfaces of the body; and a coil disposed in the coil portion, including coil patterns having a spiral shape and lead patterns, and having both end portions connected to the first and second external electrodes, respectively, through the lead patterns. A width of the lead pattern is smaller than that of the coil pattern.

Abstract: A specimen inspection apparatus into which a specimen transporting apparatus is inserted, the specimen inspection apparatus including: a platform including an upper plate and a lower plate disposed to face each other and to be spaced apart from each other by a predetermined distance; an injection part provided in the upper plate, a front end of the specimen transporting apparatus being inserted into the injection part; an introduction part connected to the injection part and provided between the upper and lower plate; and a plurality of stepped parts provided in the introduction part.

Abstract: The present invention relates to a negative electrode active material for a secondary battery, a conductive composition for a secondary battery, a negative electrode material including the same, a negative electrode structure and secondary battery including the same, and a method for manufacturing the same. The present invention includes: a silicon particle; and an amorphous surface layer formed on the surface of the silicon particle. According to the present invention, the negative electrode structure is formed of a composite of a silicon particle and carbon or lithium ion, the oxygen contents of the solid electrolyte and silicon particles are low, and thus aggregation of silicon particles is inhibited. Therefore, in the event of using the negative electrode structure in a negative electrode, a power storage device such as a lithium secondary battery may have high energy density, high output density, and a longer charging/discharging life cycle.

Abstract: A push lock switch apparatus is provided. The apparatus includes a plunger that is inserted in a housing and slides and includes a moving passage in the inside thereof. A lock pin is hinged at a bottom portion of the housing and interferes with the moving passage to regulate the slide movement of the plunger. A return spring is disposed in the housing and is able to provide an elastic force to the plunger and allows the lock pin to rotate on the moving passage by pressurizing the lock pin. Additionally, a movable contactor is engaged with the plunger and slides together with the plunger and contacts a fixed terminal disposed at an outer side of the housing when the plunger slides.

Abstract: The present invention relates to a negative electrode active material for a secondary battery, a conductive composition for a secondary battery, a negative electrode material including the same, a negative electrode structure and secondary battery including the same, and a method for manufacturing the same. The present invention includes: a silicon particle; and an amorphous surface layer formed on the surface of the silicon particle. According to the present invention, the negative electrode structure is formed of a composite of a silicon particle and carbon or lithium ion, the oxygen contents of the solid electrolyte and silicon particles are low, and thus aggregation of silicon particles is inhibited. Therefore, in the event of using the negative electrode structure in a negative electrode, a power storage device such as a lithium secondary battery may have high energy density, high output density, and a longer charging/discharging life cycle.

Abstract: The present invention relates to a negative electrode active material for a secondary battery, a conductive composition for a secondary battery, a negative electrode material including the same, a negative electrode structure and secondary battery including the same, and a method for manufacturing the same. The present invention includes: a silicon particle; and an amorphous surface layer formed on the surface of the silicon particle. According to the present invention, the negative electrode structure is formed of a composite of a silicon particle and carbon or lithium ion, the oxygen contents of the solid electrolyte and silicon particles are low, and thus aggregation of silicon particles is inhibited. Therefore, in the event of using the negative electrode structure in a negative electrode, a power storage device such as a lithium secondary battery may have high energy density, high output density, and a longer charging/discharging life cycle.

Abstract: The present invention relates to a negative electrode active material for a secondary battery, a conductive composition for a secondary battery, a negative electrode material including the same, a negative electrode structure and secondary battery including the same, and a method for manufacturing the same. The present invention includes: a silicon particle; and an amorphous surface layer formed on the surface of the silicon particle. According to the present invention, the negative electrode structure is formed of a composite of a silicon particle and carbon or lithium ion, the oxygen contents of the solid electrolyte and silicon particles are low, and thus aggregation of silicon particles is inhibited. Therefore, in the event of using the negative electrode structure in a negative electrode, a power storage device such as a lithium secondary battery may have high energy density, high output density, and a longer charging/discharging life cycle.

Abstract: A push lock switch apparatus is provided. The apparatus includes a plunger that is inserted in a housing and slides and includes a moving passage in the inside thereof. A lock pin is hinged at a bottom portion of the housing and interferes with the moving passage to regulate the slide movement of the plunger. A return spring is disposed in the housing and is able to provide an elastic force to the plunger and allows the lock pin to rotate on the moving passage by pressurizing the lock pin. Additionally, a movable contactor is engaged with the plunger and slides together with the plunger and contacts a fixed terminal disposed at an outer side of the housing when the plunger slides.

Abstract: A method of manufacturing a multilayer ferrite bead includes steps of: preparing ferrite sheets having internal electrodes formed on surfaces thereof; forming a ferrite laminate by stacking the ferrite sheets; forming a groove by pressurizing a central portion of the ferrite laminate; and forming external electrodes on the ferrite laminate.

Abstract: A specimen inspection apparatus into which a specimen transporting apparatus is inserted, the specimen inspection apparatus including: a platform including an upper plate and a lower plate disposed to face each other and to be spaced apart from each other by a predetermined distance; an injection part provided in the upper plate, a front end of the specimen transporting apparatus being inserted into the injection part; an introduction part connected to the injection part and provided between the upper and lower plate; and a plurality of stepped parts provided in the introduction part.

Abstract: A multilayer electronic component may include: a multilayer body including a plurality of insulating layers; an internal coil part provided by electrically connecting respective conductive patterns disposed on the plurality of insulating layers to each other; and first and second external electrodes disposed on both end surfaces of the multilayer body, respectively. A perimeter of at least one conductive pattern disposed in peripheral regions of the multilayer body may be smaller than a perimeter of a conductive pattern disposed in a central region of the multilayer body.