Patent ID: 8610189
Filing Date: 2013-12-17
Classification: H01L

Abstract:
1. A semiconductor device comprising: an active region; a trench selectively formed in the active region to divide the active region into first and second regions, the first and second regions being disposed in line in a first direction, the trench including first and second portions that are disposed in line in a second direction and a third portion that is between the first and second portions, the second direction crossing the first direction, each of the first and second portions of the trench being greater in depth than the third portion of the trench; a source region formed in the first region; a drain region formed in the second region; and a gate electrode formed in the trench, the gate electrode including first and second parts corresponding respectively to the first and second portions of the trench and a third part corresponding to the third portion of the trench so that each of the first and second parts protruding downwardly than the third part.