Abstract: A semiconductor memory device including a substrate; a mold structure including gate electrodes and mold insulating layers stacked in a stair shape, channel structures on the substrate, intersecting the gate electrodes, and passing through the mold structure; cell contacts connected to the gate electrodes; a first interlayer insulating layer on the mold structure and covering the channel structures and cell contacts; first metal patterns connected to the channel structures, an upper surface of the first metal patterns being coplanar with an upper surface of the first interlayer insulating layer; second metal patterns connected to the cell contacts, an upper surface of the second metal patterns being coplanar with the upper surface of the first metal patterns; a first blocking layer along the upper surface of the first interlayer insulating layer, the first metal patterns, and the second metal patterns; and a first dummy vias passing through the first blocking layer.

Abstract: A semiconductor memory device comprising a substrate including a cell array area and an extension area, a mold structure including, a plurality of gate electrodes sequentially stacked on the cell array area of the substrate and stacked in a stair shape on the extension area of the substrate, and a plurality of mold insulating films stacked alternately with the plurality of gate electrodes, a plurality of channel structures on the cell array area of the substrate, wherein each of the plurality of channel structures extends through the mold structure and intersects the plurality of gate electrodes, a plurality of cell contacts on the extension area of the substrate and respectively connected to the plurality of gate electrodes, a first interlayer insulating film on the mold structure so as to cover the plurality of channel structures and the plurality of cell contacts.

Abstract: A substrate transfer unit is provided. The substrate transfer unit includes: a rail part having a length in a horizontal direction; a vertical part moving along the rail part, guiding the vertical movement of a robot, which transfers a substrate, and having, formed therein, first flow paths that a fluid is introduced into and passes through; main duct parts having, formed therein, second flow paths which communicate with the first flow paths, having first end portions connected to the vertical part, and including outlets, which are formed at second end portions of the main duct parts and face a bottom surface of the index module, and through holes, which are formed on one or both sides of each of the second end portions; and auxiliary duct parts surrounding the through holes at the second end portions of the main duct parts and having, formed therein, expansion spaces which communicate with the second flow paths.

Abstract: A folded module includes a housing, a carrier provided in the housing, and a rotation holder provided on the carrier and including a reflective member. The carrier is rotatable, with respect to the housing, around a first axis formed by one rotating shaft ball, the rotation holder is rotatable with respect to the carrier around a second axis formed by two ball members, and the first axis and the second axis intersect each other, and the one rotating shaft ball and the two ball members are provided together on a plane on which both the first axis and the second axis are provided.

Abstract: An actuator assembly for an electromechanical parking brake greatly reduces vibration and noise of the actuator so that a high-quality vehicle may be realized by removing one of factors causing vibration and noise in the vehicle and greatly improves the easiness of assembly and handling together with attenuating vibration and noise by maximizing the excellent vibration and noise attenuating function by means of modularization which allows the actuator assembly to be handled as a single element.

Abstract: An actuator assembly for an electromechanical parking brake greatly reduces vibration and noise of the actuator so that a high-quality vehicle may be realized by removing one of factors causing vibration and noise in the vehicle and greatly improves the easiness of assembly and handling together with attenuating vibration and noise by maximizing the excellent vibration and noise attenuating function by means of modularization which allows the actuator assembly to be handled as a single element.

Abstract: The present invention relates to a multi-channel provision system for a wired network. The multi-channel provision system of the present invention includes a tap-off unit (330) for dividing a frequency band, assigned to a wired network for network communication, and providing resultant frequency bands to respective subscriber units belonging thereto. An optical network device (100) is disposed at a node where one or more sectors, divided according to a number of subscriber units that enable network access through the wired network, branch off. The optical network device (100) provides a frequency band for network access to each sector so that a same frequency band is assigned to each sector, thus generating a multi-channel for the frequency band, and reusing the frequency band, assigned to the wired network, a number of times corresponding to the number of the sectors through generation of the multi-channel.

Abstract: Provided is a high-efficiency slim vacuum inhalation apparatus which cools heat generated from heat-generation sources without using particular heat radiation components, and a robot cleaner employing the same. The vacuum inhalation apparatus does not need particular heat radiation components since an impeller is closely adhered to a rotational shaft by a pair of washers and an impeller bushing, to thus avoid from sliding, and since an inhalation efficiency which is caused by a brushless direct-current (BLDC) motor increases, and thus power consumption decreases. Further, since a BLDC motor is incorporated in a vacuum inhalation apparatus so that the vacuum inhalation apparatus can be implemented into a slim type, a robot cleaner can be also compactly realized into a slim type.

Abstract: Provided is a slim type stator that is used to make a BLDC (Brushless Direct-Current) motor having a stator of a division core structure and a double rotor for use in a drum-washing machine, a slim type motor having the same, and a direct drive apparatus for use in the drum-washing machine.

Abstract: Provided is a cover-integrated stator that is used to make a BLDC Brushless Direct-Current motor having a stator of a division core structure and a double rotor for use in a drum-washing machine, a slim type motor, and a direct drive apparatus for use in the drum-washing machine.

Abstract: The present invention relates to a multi-channel provision system for a wired network. The multi-channel provision system of the present invention includes a tap-off unit (330) for dividing a frequency band, assigned to a wired network for network communication, and providing resultant frequency bands to respective subscriber units belonging thereto. An optical network device (100) is disposed at a node where one or more sectors, divided according to a number of subscriber units that enable network access through the wired network, branch off. The optical network device (100) provides a frequency band for network access to each sector so that a same frequency band is assigned to each sector, thus generating a multi-channel for the frequency band, and reusing the frequency band, assigned to the wired network, a number of times corresponding to the number of the sectors through generation of the multi-channel.