Abstract: Provided is a refrigerator including a main body, a storage compartment provided inside the main body with a front side that is open, a drawer-type door slidably coupled to the main body to open and close the storage compartment, and including a door cap having a handle pocket, and a door opening device coupled to the door cap and configured to open the drawer-type door. The door opening device includes a handle lever rotatably coupled to the door cap. The door opening device includes a slider disposed at a rear of the handle lever to perform straight linear motion in an upper-to-lower direction by the handle lever. The door opening device includes a pusher coupled at a rear of the slider to perform straight linear motion in a front-to-rear direction, and, while the slider is moving upward, perform straight linear motion rearward to press the main body to open the drawer-type door.

Abstract: Semiconductor devices are provided. A semiconductor device includes gate electrodes on a substrate and stacked perpendicularly to an upper surface of the substrate. The semiconductor device includes interlayer insulating layers alternately stacked with the gate electrodes. Moreover, the semiconductor device includes channel structures passing through the gate electrodes. Each of the channel structures includes a channel layer extending perpendicularly to the upper surface of the substrate, a tunneling insulating layer on the channel layer, charge storage layers on the tunneling insulating layer in respective regions between the gate electrodes and a side surface of the tunneling insulating layer, and first blocking insulating layers on the charge storage layers, respectively. A first layer of the first blocking insulating layers is on an upper surface, a lower surface, and a side surface of a first layer of the charge storage layers.

Abstract: A door opening device for opening a drawer type door of a refrigerator includes: a handle lever rotatably assembled with a door cap and including a rotating and pressing portion; a transfer lever positioned behind the handle lever to rotate by the handle lever, and including a sliding surface inclined such that the rotating and pressing portion slidingly moves according to a rotation of the handle lever; and a slider assembled with a rear portion of the transfer lever in such a way as to be linearly movable, and configured to linearly move toward a rear direction according to a rotation of the transfer lever to press the main body, thereby opening the drawer type door.