Abstract: The present invention relates to a composition for selectively etching silicon on a surface on which a silicon oxide film (SiO2) and silicon (Si) are exposed. According to the present invention, it is possible to improve etch selectivity of silicon on the semiconductor surface.

Abstract: A semiconductor device includes a substrate including a first region, and a second region, a first gate structure and a second gate structure on the substrate of the first region, a third gate structure and a fourth gate structure on the substrate of the second region, a first interlayer insulating film on the substrate of the first region and including a first lower interlayer insulating film and a first upper interlayer insulating film, a second interlayer insulating film on the substrate of the second region and including a second lower interlayer insulating film and a second upper interlayer insulating film, a first contact between the first gate structure and the second gate structure and within the first interlayer insulating film, and a second contact formed between the third gate structure and the fourth gate structure and within the second interlayer insulating film.

Abstract: A storage device includes a printed circuit board (PCB) with attached semiconductor chips, each including a memory, and with at least one wire coupling the semiconductor chips. The storage device includes a case including a first case surrounding a top portion of the printed circuit board and a second case surrounding a bottom portion of the printed circuit board. A sidewall of the first case and a protrusion of the second case form a concavo-convex structure. The sidewall of the first case and the protrusion of the second case cover a side of the printed circuit board.

Abstract: Provided is a duct docking device for a ventilation seat of a vehicle. The duct docking device enables air to be easily blown to a seatback and a seat cushion with a passenger in a seat using only one blower by enabling a seatback duct mounted at the seatback and a seat cushion duct mounted at the seat cushion to be hermetically docked through a connector duct, etc. at an unfolded position of the seatback in which a passenger can sit, and by enabling the seatback duct mounted at the seatback and the seat cushion duct mounted at the seat cushion to be separated from each other at a folded position of the seatback in consideration of that there is no passenger in the seat.

Abstract: An electronic device is provided. The electronic device includes a housing, a touch screen display that includes a first edge and a second edge, a microphone, at least one speaker, a wireless communication circuit, a memory, and a processor operably connected with the touch screen display, the microphone, the at least one speaker, the wireless communication circuit, and the memory. The processor is configured to output a home screen including a plurality of application icons in a matrix pattern. The processor is configured receive an input from the first edge to the second edge. The processor is configured output a user interface on the touch screen display that includes a button that allows user to call a first operation and a plurality of cards. To call the first operation the processor is configured to receive a user input, transmit data and receive a response, and perform a task.

Abstract: An electronic device is provided. The electronic device includes a housing, a touch screen display that includes a first edge and a second edge, a microphone, at least one speaker, a wireless communication circuit, a memory, and a processor operably connected with the touch screen display, the microphone, the at least one speaker, the wireless communication circuit, and the memory. The processor is configured to output a home screen including a plurality of application icons in a matrix pattern. The processor is configured receive an input from the first edge to the second edge. The processor is configured output a user interface on the touch screen display that includes a button that allows user to call a first operation and a plurality of cards. To call the first operation the processor is configured to receive a user input, transmit data and receive a response, and perform a task.

Abstract: The present invention disclose a sack used in an ordinary sack and a hard type sack selectively according to the existence of a hard case. The ordinary sack can be sagged easily when goods is packed into the sack because a material of the sack is usually a soft synthetic fiber. Such softness gives a non-elegant and uncomfortable to carry the ordinary sack. In more, carrying fragile goods in such a sack can make someone to be nervous to prevent unpredicted external impact. Usage of the hard type sack has an advantage to keep a shape without sagging when goods are packed in, and to protect the goods from any external impact, because a backside case is made of a hard material. However, disassembling the backside case from the hard type sack is not easy because the backside case is jointed with a back supporter by bolts and nuts method. In more, bolts are always required to re-assemble the backside case into the hard type sack after disassembling.

Abstract: The present invention disclose a sack used in an ordinary sack and a hard type sack selectively according to the existence of a hard case.