Abstract: A cathode active material for a lithium secondary battery includes a lithium metal oxide particle and a thio-based compound formed on at least portion of a surface of the lithium metal oxide particle. The thio-based compound has a double bond that contains a sulfur atom. Chemical stability of the lithium metal oxide particle may be improved and surface residues may be reduced by the thio-based compound.

Abstract: A unit page buffer block includes first to fourth page buffer pairs. Each of the page buffer pairs includes a common column decoder block; and an upper page buffer stage and a lower page buffer stage electrically and commonly connected to the common column decoder block. Each of the upper page buffer stages includes an upper selection block; an upper latch block; and an upper cache block. Each of the lower page buffer stage includes a lower selection block; a lower latch block; and a lower cache block. Each of the upper selection blocks includes first to fourth sub-selection blocks. Each of the upper and lower latch blocks includes first to twelfth upper sub-latch blocks. Each of the upper and lower cache blocks includes first to twelfth upper sub-cache blocks. Each of the common column decoder block includes first to third sub-common column decoder blocks arranged in a row direction.

Abstract: A memory device includes a plurality of bit lines extending in a first direction and arranged in a second direction; and a cell region including a plane which is coupled to the plurality of bit lines, wherein the plane is divided into a plurality of memory groups each including a plurality of partial pages to be disposed in a plurality of rows in the first direction.

Abstract: A memory may include a first wafer, and a second wafer stacked on and bonded to the first wafer. The first wafer may include a cell structure including a memory cell array; and a first logic structure disposed under the cell structure, and including a row control circuit. The second wafer may include a second logic structure including a column control circuit.

Abstract: A camera module includes a lens module having lenses; a reflection module disposed on an object side of the lens module, and changing a path of light so that the light incident inside is directed toward the lens module; and an image sensor disposed on an image side of the lens module. The reflection module can be rotated about a first axis and a second axis perpendicular to the first axis, and an imaging plane of the image sensor includes a curved surface.

Abstract: A method of storing data includes receiving, by a network storage server, a request for transmitting a file from an external apparatus; obtaining information about a cloud storage, in which the file is stored; receiving the file from the cloud storage, based on the information about the cloud storage; and transmitting the received file to the external apparatus.

Abstract: A method of storing data includes receiving, by a network storage server, a request for transmitting a file from an external apparatus; obtaining information about a cloud storage, in which the file is stored; receiving the file from the cloud storage, based on the information about the cloud storage; and transmitting the received file to the external apparatus.