Abstract:
A three-dimensional semiconductor memory device includes an electrode structure including gate electrodes and insulating layers, which are alternately stacked on a substrate, a semiconductor pattern extending in a first direction substantially perpendicular to a top surface of the substrate and penetrating the electrode structure, a tunnel insulating layer disposed between the semiconductor pattern and the electrode structure, a blocking insulating layer disposed between the tunnel insulating layer and the electrode structure, and a charge storing layer disposed between the blocking insulating layer and the tunnel insulating layer. The charge storing layer includes a plurality of first charge trap layers having a first energy band gap, and a second charge trap layer having a second energy band gap larger than the first energy band gap. The first charge trap layers are embedded in the second charge trap layer between the gate electrodes and the semiconductor pattern.
Abstract:
Disclosed is a cooking appliance with an improved structure to increase visibility to get a better look at the inside of a cooking room during cooking while blocking electromagnetic waves generated in the cooking room from leaking out. The cooking appliance includes a main body configured to have having a cooking room and a door arranged on the front of the main body to open or and close the cooking room. The door includes a door frame configured to have an opening formed to see into the cooking room and a conductive border portion around the opening; a shielding member arranged to cover the opening and having a conductive blocking layer configured to block electromagnetic waves; and a fixing member arranged to combine the door frame and the shielding member.
Abstract:
An adapter having a rotatable plug is provided. The adapter includes a case having an installation hole which provides access to an interior of the case; a rotation member installed within the installation hole of the case, the rotation member being rotatable within the installation hole relative to the case; at least one connection pin installed in the rotation member and protruding from the case; and a guide member provided adjacent to installation hole in the interior of the case and configured to guide rotation of the rotation member.
Abstract:
In one example embodiment, a semiconductor light emitting device includes a light emitting structure including a first conductivity-type semiconductor layer, an active layer, and a second conductivity-type semiconductor layer. The second conductivity-type semiconductor layer and the active layer having at least one contact hole exposing a region of the first conductivity-type semiconductor layer. The semiconductor light emitting device further includes at least one columnar structure disposed in the exposed region of the first conductivity-type semiconductor layer within the at least one contact hole. The semiconductor light emitting device further includes a first electrode disposed on the exposed region of the first conductivity-type semiconductor layer in which the at least one columnar structure is disposed, the first electrode being connected to the first conductivity-type semiconductor layer. The semiconductor light emitting device further includes a second electrode connected to the second conductivity-type semiconductor layer.
Abstract:
A method of manufacturing a semiconductor light emitting device includes forming a plurality of semiconductor light emitting devices on a substrate, the semiconductor light emitting devices having at least one electrode pad formed on upper surfaces thereof; forming a conductive bump by forming a bump core on the electrode pad of each of the semiconductor light emitting devices and forming a reflective bump layer enclosing the bump core; forming a resin encapsulating part containing a phosphor on the plurality of semiconductor light emitting devices to encompass the conductive bump; polishing the resin encapsulating part to expose the bump core of the conductive bump to an upper surface of the resin encapsulating part; and forming individual semiconductor light emitting devices by cutting the resin encapsulating part between the semiconductor light emitting devices.
Abstract:
A method for manufacturing a semiconductor light emitting device, includes: forming a light emitting structure having a first conductivity-type semiconductor layer, an active layer, and a second conductivity-type semiconductor layer on a growth substrate. A trench is formed in a portion to divide the light emitting structure into individual light emitting structures. The trench has a depth such that the growth substrate is not exposed. A support substrate is provided on the light emitting structure. The growth substrate is separated from the light emitting structure. The light emitting structure is cut into individual semiconductor light emitting devices.