Abstract: An image sensor comprises a first and second chips. The first chip includes a first semiconductor substrate, a photoelectric conversion layer in the first semiconductor substrate, a color filter, a micro lens, a first transistor adjacent to the photoelectric conversion layer, a first insulating layer, and a first metal layer in the first insulating layer and connected to the first transistor. The second chip includes a second insulating layer, a second semiconductor substrate, a second transistor on the second semiconductor substrate, a second metal layer in the second insulating layer and connected to a gate structure of the second transistor through a gate contact, a landing metal layer below the second metal layer, and a through via in direct contact with the landing metal layer and vertically passing through the second semiconductor substrate. A width of the through via becomes narrower as the width approaches the third surface.

Abstract: A method and apparatus are provided for setting a neighbor in a Radio Network Controller (RNC) of a mobile communication system. The method includes receiving, from a Node B, a message indicating that a radio link is released; storing source cell information, when restoration of the radio link fails; receiving, from a User Equipment (UE), an RRC cell update message; storing target cell information included in the RRC cell update message; determining whether a neighbor of a source cell and a target cell is set, based on the source cell information and the target cell information; and setting the neighbor by using the source cell information and the target cell information if the neighbor is not set.

Abstract: A method and apparatus are provided for setting a neighbor in a Radio Network Controller (RNC) of a mobile communication system. The method includes receiving, from a Node B, a message indicating that a radio link is released; storing source cell information, when restoration of the radio link fails; receiving, from a User Equipment (UE), an RRC cell update message; storing target cell information included in the RRC cell update message; determining whether a neighbor of a source cell and a target cell is set, based on the source cell information and the target cell information; and setting the neighbor by using the source cell information and the target cell information if the neighbor is not set.