Abstract: An aerosol generating system includes an aerosol generating article, which includes a first medium portion including first aerosol generating materials, and a second medium portion arranged adjacent to one end of the first medium portion and including second aerosol generating materials, and an aerosol generating device, which includes a housing including an accommodation space configured to accommodate the aerosol generating article, and a heating element arranged to surround at least a part of the aerosol generating article accommodated in the accommodation space to heat the aerosol generating article, wherein an area of the heating element surrounding the first medium portion is different from an area of the heating element surrounding the second medium portion.

Abstract: An aerosol generating device includes a heater configured to heat the inserted cigarette, a temperature sensor configured to detect a temperature of the heater, an insertion detection sensor configured to detect insertion of the cigarette, a puff sensor configured to detect puffs by a user, and a controller configured to reset at least one of the temperature sensor and the puff sensor in response to a sensing signal output from the insertion detection sensor.

Abstract: An aerosol generating device includes a main body and an outer cover coupled to the main body, wherein the outer cover includes a circuit layer, a base layer, a light-transmitting layer, a shielding layer, and a coating layer, which are sequentially arranged in a direction from a rear surface of the outer cover toward a front surface of the outer cover, and one or more light-emitting units arranged on the circuit layer, the base layer, the light-transmitting layer, the shielding layer, and the coating layer include a material capable of transmitting light, and light emitted from the light-emitting units sequentially passes through the base layer, the light-transmitting layer, the shielding layer, and the coating layer.

Abstract: One or more embodiments relate to an aerosol generating device including a main body, a separation member detachably coupled to the main body, an accommodation hole penetrating the separation member and configured to accommodate an external device electrically connected to the aerosol generating device, and a separation guide hole connected to the accommodation hole and extending in a direction different from a direction in which the accommodation hole extends so that a separation tool for separating the separation member from the main body is inserted into the separation guide hole.

Abstract: An aerosol generating device includes a heater configured to heat a cigarette, a sensor unit configured to sense a parameter related to an operation of the heater, and a microcontroller unit configured to initialize the sensor unit when a heating event of the heater is initiated, attempt to communicate with the initialized sensor unit and determine whether communication with the sensor unit is normal, and when the communication with the sensor unit is determined to be abnormal, reattempt communication with the sensor unit.

Abstract: An aerosol generating device includes a housing including an accommodation space for accommodating at least a portion of an aerosol generating article, a heater configured to heat the aerosol generating article inserted into the accommodation space, a temperature sensor configured to measure a temperature of the heater, a battery configured to supply power to the heater, and a processor electrically connected to the heater and the battery, wherein the processor is configured to obtain at least one of data associated with an initial temperature of the heater, which is measured through the temperature sensor, and data associated with a final heating profile of the heater, and control power supply from the battery to the heater, based on the obtained data. Various embodiments may be made.

Abstract: An aerosol generating device includes a housing, an accommodation portion located inside the housing and comprising an accommodation space configured to accommodate at least a portion of an aerosol generating article, and a coil arranged to surround at least one region of an outer circumferential surface of the accommodation portion and configured to generate an alternating magnetic field when power is supplied thereto, wherein the coil includes a first coil having a first resistance value, and a second coil arranged to be spaced apart from the first coil in a first direction in which the accommodation portion extends and having a second resistance value different from the first resistance value.

Abstract: An aerosol generating device according to an embodiment includes a heater, a battery configured to supply power to the heater, a communication interface connected to an external device, and a controller configured to communicate with the external device only when an external input is received in a state in which a connection between the communication interface and the external device is detected.

Abstract: An aerosol generating device includes a cylindrical accommodation portion having an accommodation space configured to accommodate at least a portion of a cigarette in an inner space, a coil arranged outside the accommodation portion to generate an induced magnetic field, a battery configured to supply power to the coil, a sensor connector including a metal material, and arranged in the accommodation portion to contact the cigarette, a temperature sensor contacting the sensor connector, and two or more cigarette support elements supporting an outer surface of the cigarette, and spaced apart from each other on an inner wall of the accommodation portion to form an air flow passage between the cigarette and the accommodation portion.

Abstract: An aerosol generating system includes an aerosol generating article including an aerosol generating material, a housing forming an exterior and having an inner space, an accommodation portion inside the housing and configured to accommodate the aerosol generating article, a battery inside the housing, a heating element inside the housing and configured to generate a magnetic field according to power from the battery, and a susceptor emitting heat because of the magnetic field generated by the heating element and configured to heat the aerosol generating article, wherein at least a portion of the heating element forms coils configured to generate the magnetic field, and the coils are electrically connected to each other, arranged along an outer circumferential surface of the accommodation portion, and configured to generate the magnetic field in a direction crossing a direction, in which the accommodation portion extends, when the power is supplied from the battery.

Abstract: According to an embodiment, an aerosol generating device includes a display including a display panel and a touch panel configured to receive a touch input, a battery, and a processor electrically connected to the display and the battery, wherein the processor is configured to detect that a power state of the aerosol generating device is changed to a first state and change the power state of the aerosol generating device to a second state, based on whether a touch input through the touch panel of the display is received within a threshold time after the power state is changed to the first state, the second state being distinguished from the first state. Various embodiments may be made.

Abstract: An aerosol generating device includes a battery, an induction coil configured to generate an alternating magnetic field on the basis of power supplied from the battery, a susceptor configured to heat an aerosol generating substrate by using heat generated by the alternating magnetic field, a temperature sensor arranged adjacent to the susceptor and configured to output a temperature sensing value as detection information, and a controller configured to cut off power supplied to the induction coil, according to a first abnormal heating condition and a second abnormal heating condition, which are based on the detection information of the temperature sensor.

Abstract: An aerosol generating device according to an embodiment includes a heater configured to heat a cigarette, a temperature sensor configured to measure temperature of the heater, and a controller configured to determine a humidity state of the cigarette by calculating a temperature increase time of the cigarette by using the temperature sensor and by comparing the calculated temperature increase time of the cigarette with a preset threshold. The controller supplies power to the heater according to a basic temperature profile when the temperature increase time is less than the threshold, and supplies power to the heater according to a first correction profile when the temperature increase time is greater than or equal to the threshold.

Abstract: An aerosol generating system according to one embodiment includes a cigarette having a first color band of which color changes in response to humidity, and an aerosol generating device including a main body including an accommodation passage for accommodating the cigarette, a heater for heating the cigarette, a color sensor arranged on one side of the accommodation passage and detecting a color of the first color band, and a controller for determining a humidity state of the cigarette, based on a detected color of the first color band.

Abstract: Semiconductor devices may include a plurality of active fins each extending in a first direction on a substrate, a gate structure extending on the active fins in a second direction, and a first source/drain layer on first active fins of the active fins adjacent the gate structure. At least one of two opposing sidewalls of a cross-section of the first source/drain layer taken along the second direction may include a curved portion having a slope with respect to an upper surface of the substrate. The slope may decrease from a bottom toward a top thereof.

Abstract: Semiconductor devices may include a plurality of active fins each extending in a first direction on a substrate, a gate structure extending on the active fins in a second direction, and a first source/drain layer on first active fins of the active fins adjacent the gate structure. At least one of two opposing sidewalls of a cross-section of the first source/drain layer taken along the second direction may include a curved portion having a slope with respect to an upper surface of the substrate. The slope may decrease from a bottom toward a top thereof.

Abstract: Semiconductor devices may include a plurality of active fins each extending in a first direction on a substrate, a gate structure extending on the active fins in a second direction, and a first source/drain layer on first active fins of the active fins adjacent the gate structure. At least one of two opposing sidewalls of a cross-section of the first source/drain layer taken along the second direction may include a curved portion having a slope with respect to an upper surface of the substrate. The slope may decrease from a bottom toward a top thereof.

Abstract: Semiconductor devices may include a plurality of active fins each extending in a first direction on a substrate, a gate structure extending on the active fins in a second direction, and a first source/drain layer on first active fins of the active fins adjacent the gate structure. At least one of two opposing sidewalls of a cross-section of the first source/drain layer taken along the second direction may include a curved portion having a slope with respect to an upper surface of the substrate. The slope may decrease from a bottom toward a top thereof.

Abstract: A method for fabricating a semiconductor device is provided. The method for fabricating a semiconductor device includes forming transistors on a semiconductor substrate, each of the transistors having a gate structure and source/drain regions, forming an oxide film on the transistors, forming a mask film pattern on the oxide film, the mask film pattern comprising a first pattern having a first width and a second pattern having a second width different from the first width, removing a part of the oxide film using the mask film pattern to form first and second trenches, filling the first and second trenches with a nitride film, removing the rest part of the oxide film to form third and fourth trenches, and forming conductive contacts by filling the third and fourth trenches. A top width of each of the third trenches is equal to the first width, and a top width of each of the fourth trenches is equal to the second width.

Abstract: Disclosed is a method for modifying wettability of a surface of an inorganic material, the method comprising the steps of: preparing an inorganic material with a surface; and charging the surface of the inorganic material with positive surface charges obtained from photoelectron-emission by an X-ray irradiation to the surface of the inorganic material.