Abstract: The present invention relates to a method for manufacturing a labyrinth seal using wire arc additive manufacturing, which is mounted between a diaphragm of a turbine and a turbine rotor to induce a smooth rotation of the turbine rotor and preventing gas leakage by minimizing friction between the diaphragm of a turbine and a turbine rotor when a rotating body such as the turbine rotor rotates inside a fixed body such as the diaphragm, and which includes a ring-shaped body part and a tooth part protruding on one side of the ring-shaped body part, wherein the labyrinth seal is deposition-manufactured by 3D printing, the body part is manufactured by the wire arc additive manufacturing, and the tooth part is manufactured by a directed energy deposition.

Abstract: A method of manufacturing a high-electron-mobility transistor device is provided. The method includes sequentially forming a transition layer and a semiconductor layer on a substrate, etching a portion of a surface of the semiconductor layer to form a barrier layer region having a certain depth and forming a barrier layer in the barrier layer region, forming a source electrode and a drain electrode on a 2-dimensional electron gas (2-DEG) layer upward exposed at a surface of the semiconductor layer, in defining the 2-DEG layer formed along an interface between the semiconductor layer and the barrier layer, forming a passivation layer on the semiconductor layer, the barrier layer, the source electrode, and the drain electrode and etching a portion of the passivation layer to upward expose the source electrode, the drain electrode, and the barrier layer, and forming a gate electrode on the upward exposed barrier layer.

Abstract: Disclosed are an aerosol generating device including a heater that heats an aerosol generating material; a battery that supplies power to the heater; a sensor that senses puffs of aerosol; and a controller that determine a power profile based on a time interval between the puffs of the user and controls power to be supplied to the heater according to the determined power profile, and an operation method thereof.

Abstract: An aerosol generating article includes a front-end plug configured to introduce external air into the aerosol generating article, a tobacco medium portion including a tobacco material in the form of granules, and a filter unit arranged at a position opposite the front-end plug across the tobacco medium portion, wherein the tobacco material has a pH value of 7 to 11.

Abstract: A multilayer electronic component includes a body including a capacitance forming portion including a dielectric layer and an internal electrode alternately disposed in a first direction, and cover portions disposed on both end surfaces of the capacitance forming portion in the first direction, respectively, and including a first surface and a second surface opposing each other in the first direction, a third surface and a fourth surface opposing each other in a second direction, and a fifth surface and a sixth surface opposing each other in a third direction; external electrodes disposed on the third and fourth surfaces of the body, respectively; and side margin portions disposed on the fifth and sixth surfaces of the body, respectively. At least one of the capacitance forming portion, the cover portion, or the side margin portions includes a secondary phase including gallium (Ga).

Abstract: An aerosol generating device includes a first cartridge configured to accommodate a first smokable material and comprising a delivery hole through which an aerosol generated from the first smokable material is delivered; a second cartridge comprising a plurality of chambers for accommodating a second smokable material through which the aerosol delivered from the first cartridge passes, and movably coupled to the first cartridge such that a position of the second cartridge with respect to the first cartridge is changeable; a magnetic body arranged in one of the second cartridge and the first cartridge; and an electromagnet arranged in the other of the second cartridge and the first cartridge to face the magnetic body, and configured to generate magnetism toward the magnetic body such that one of the plurality of chambers is aligned with the delivery hole to form a flow path to a mouthpiece.

Abstract: Provided is an aerosol generating device including a cartridge comprising: an atomizer heating an aerosol generating material to generate aerosol; a mouthpiece through which the generated aerosol is released to outside; a main body accommodating the cartridge; and a sensor configured to detect release of the aerosol to the outside; wherein a first air channel is formed between the cartridge and the main body and guides external air introduced through an air inlet to the mouthpiece through the atomizer, and wherein a second air channel is formed in the main body such that the first air channel and the second air channel are in fluid communication, and wherein the sensor detects the release of the aerosol to the outside based on a change in air flow rate or air pressure of the second air channel.

Abstract: An aerosol generating device includes an aerosol delivering device including a first cartridge in which a first material for generating an aerosol is accommodated, and a second cartridge rotatably coupled to the first cartridge, configured to accommodate a second material, and arranged such that an aerosol generated from the first material passes through the second material, and an atomizer that is connected to the first cartridge and configured to generate the aerosol by atomizing the first material and deliver the aerosol to the second cartridge.

Abstract: The present invention improves a heat dissipation property of a semiconductor device by transferring hexagonal boron nitride (hBN) with a two-dimensional nanostructure to the semiconductor device. A semiconductor device of the present invention includes a substrate having a first surface and a second surface, a semiconductor layer formed on the first surface of the substrate, an hBN layer formed on at least one surface of the first surface and the second surface of the substrate, and a heat sink positioned on the second surface of the substrate. A radiation rate of heat generated during driving of an element is increased to decrease a reduction in lifetime of a semiconductor device due to a temperature increase. The semiconductor device has a structure and configuration which are very effective in improving a rapid temperature increase due to heat generated by high-power semiconductor devices.

Abstract: A heater module for an aerosol generating device includes a heater module body detachably coupled to a cartridge which includes an aerosol generating material and having an inlet hole through which external air is introduced, a wick including a first surface that faces the inlet hole and extends in a direction crossing another direction in which air is introduced through the inlet hole and arranged in the heater module body to absorb the aerosol generating material, and a heater provided on the first surface of the wick to face the inlet hole and heating the aerosol generating material absorbed in the wick.

Abstract: A heater assembly includes a chamber including an air inlet, a liquid inlet, and an air outlet; a wick configured to absorb an aerosol generating material from outside of the heater assembly through the liquid inlet and including a first surface, a second surface, and a side surface surrounding a space between the first surface and the second surface; a heater arranged on the side surface of the wick and configured to heat the aerosol generating material absorbed into the wick; and a guide structure configured to induce external air flowing into the chamber through the air inlet to move in a direction toward the heater.

Abstract: A method of counting the number of puffs using an aerosol generating device is disclosed. The may include obtaining a first start time which is a time when a pressure measured by a sensor included in the aerosol generating device decreases below a first reference pressure value; obtaining a first end time which is a time when the pressure measured by the sensor reaches the first reference pressure value after the first start time; determining whether a first period, which is a period between the first end time and the first start time, is longer than or equal to a first reference period; and increase the number of puffs by one based on the first period being longer than or equal to the first reference period.

Abstract: Provided is a device including: a battery configured to supply power; a heater configured to heat an aerosol generating material by receiving power from the battery; a sensor; at least one output unit; and a controller, wherein the controller detects a user's puff by using the sensor and controls at least one output unit based on puff characteristic data based on a result of the detection.

Abstract: A cartridge for an aerosol generating device includes: a storage in which an aerosol generating material is stored; a vibrator configured to atomize the aerosol generating material stored in the storage into an aerosol by generating vibrations; a delivery portion configured to deliver the aerosol generating material stored in the storage to the vibrator; a first conductor having a container shape, the first conductor in contact with a first surface of the vibrator and accommodating at least a portion of an outer circumferential surface of the vibrator; a second conductor in contact with a second surface of the vibrator and pressing the vibrator in a direction from the second surface to the first surface; and a support located inside the first conductor and configured to support the vibrator.

Abstract: An aerosol generating device includes a battery, a capacitive sensor, a controller, a first conductive element, a second conductive element, and a heater, wherein the controller is configured to control power supplied from the battery to the heater based on an order of a first time point at which the capacitive sensor senses contact of a user through the first conductive element and a second time point at which the capacitive sensor senses contact of the user through the second conductive element.

Abstract: Provided are a die pickup module and a die bonding apparatus including the same. The die pickup module includes a wafer stage for supporting a wafer including dies attached on a dicing tape, a die ejector arranged under the dicing tape and for separating a die to be picked up from the dicing tape, a non-contact picker for picking up the die in a non-contact manner so as not to contact a front surface of the die, a vertical driving unit for moving the non-contact picker in a vertical direction to pick up the die and an inverting driving unit for inverting the non-contact picker to invert a die picked up by the non-contact picker.

Abstract: Provided is a bubble column reactor including a reaction zone configured to carry out a reaction of a gaseous reactant in a liquid reaction medium; a disengaging section provided above the reaction zone and configured such that a first gas stream rising from the reaction zone is introduced into the disengaging section; and a condensation zone provided above the disengaging section and configured such that a second gas stream rising from the disengaging section is introduced into the condensation zone, wherein a diameter of the condensation zone is greater than a diameter of the disengaging section.

Abstract: Provided is an aerosol generating device including a heater that heats an aerosol-generating material and a controller that controls power supplied to the heater. The controller may measure a resistance value of the heater by using at least one electrical characteristic associated with the heater, select any one power profile from among a plurality of pre-stored power profiles including values of power to be supplied to the heater, such that a temperature of the heater reaches a target temperature within a predetermined time from a time point at which power supply to the heater is initiated regardless of variation in the resistance value of the heater, and control power supplied to the heater according to the selected power profile.

Abstract: According to an embodiment, an aerosol generating device may include a battery configured to supply a battery voltage, a first boost circuit configured to boost the battery voltage to a first boost voltage higher than the battery voltage, a second boost circuit configured to generate first and second switching voltages respectively based on first and second PWM signals, and boost the first boost voltage to a second boost voltage according to the generated first and second switching voltages, a vibrator configured to generate ultrasonic vibration according to the second boost voltage, and atomize an aerosol generating material, and a processor configured to control the battery, the first boost circuit, and the second boost circuit.

Abstract: A reactor cleaning method includes pressurizing a washing solvent container to 5 kg/cm2·g to 40 kg/cm2·g using pressurized gas; supplying a washing solvent stream from the washing solvent container to one or more of a lower portion or a side portion of the reactor to fill an inside of the reactor; and circulating the washing solvent stream between the washing solvent container and the reactor while maintaining a temperature of the reactor at 115° C. to 200° C.