Abstract: A ceramic electronic component includes a body including a dielectric layer and an internal electrode, and an external electrode disposed on the body and connected to the internal electrode. The dielectric layer includes a plurality of dielectric grains, and at least one of the plurality of dielectric grains has a core-dual shell structure having a core and a dual shell. The dual shell includes a first shell surrounding at least a portion of the core, and a second shell surrounding at least a portion of the first shell, and a concentration of a rare earth element included in the second shell is more than 1.3 times to less than 3.8 times a concentration of a rare earth element included in the first shell.

Abstract: A super-steep switching device and an inverter device using the same are disclosed. The super-steep switching device includes a semiconductor channel disposed on a substrate and made of a semiconductor material having impact ionization characteristic; a source electrode and a drain electrode in contact with the semiconductor channel, wherein the source electrode and the drain electrode are disposed on the substrate and are spaced apart from each other; and a gate electrode disposed on the semiconductor channel so as to overlap only a portion of the semiconductor channel, wherein a top surface of the semiconductor channel includes a first area overlapping the gate electrode, and a second area non-overlapping the gate electrode, wherein a ratio of a length of the first area and a length of the second area is in a range of 1:0.1 to 0.4.

Abstract: A cool air supply system for refrigerators, capable of guiding cool air from the freezer compartment of a refrigerator to the refrigeration compartment door, wherein the cool air supply system includes a distributing duct, designed for guiding cool air circulated through a freezer compartment to a refrigeration compartment door< and a door duct disposed in the door where it can be selectively connected to the distribution duct. The distribution duct has a return duct designed for introducing the cool air to an evaporator and a branch duct which diverges from the return duct. Thus, the cool air, introduced into the door duct from the distribution duct and branch duct is readily discharged from the door to the inside of the refrigeration compartment.