Patent ID: 8772881
Filing Date: 2014-07-08
Classification: H01L

Abstract:
1. A semiconductor device comprising: a first inverter arranged at an intersection of a 1st row and a 1st column, the first inverter including a first island-shaped semiconductor layer, a first gate dielectric film surrounding a periphery of the first island-shaped semiconductor layer, a first gate electrode surrounding a periphery of the first gate dielectric film, the first gate dielectric film having a first surface surrounding an outer side surface of the first gate electrode and a second surface opposite the first surface, a first arc-shaped semiconductor layer contacting only a portion of the second surface of the first gate dielectric film, a first first-conductive-type high-concentration semiconductor layer arranged on a top of the first island-shaped semiconductor layer, a second first-conductive-type high-concentration semiconductor layer arranged underneath the first island-shaped semiconductor layer, a first second-conductive-type high-concentration semiconductor layer arranged on a top of the first arc-shaped semiconductor layer, and a second second-conductive-type high-concentration semiconductor layer arranged underneath the first arc-shaped semiconductor layer; a second inverter arranged at an intersection of a 2nd row and a 2nd column, the second inverter including a second island-shaped semiconductor layer, a second gate dielectric film surrounding a periphery of the second island-shaped semiconductor layer, a second gate electrode surrounding a periphery of the second gate dielectric film, the second gate dielectric film having a first surface in contact with a side surface of the second gate electrode and a second surface, a second arc-shaped semiconductor layer contacting only a portion of the second surface of the second gate dielectric film, a third first-conductive-type high-concentration semiconductor layer arranged on a top of the second island-shaped semiconductor layer, a fourth first-conductive-type high-concentration semiconductor layer arranged underneath the second island-shaped semiconductor layer, a third second-conductive-type high-concentration semiconductor layer arranged on a top of the second arc-shaped semiconductor layer, and a fourth second-conductive-type high-concentration semiconductor layer arranged underneath the second arc-shaped semiconductor layer; a first selection transistor arranged at an intersection of the 1st row and the 2nd column, the first selection transistor including a third island-shaped semiconductor layer, a third gate dielectric film surrounding a periphery of the third island-shaped semiconductor layer, a third gate electrode surrounding a periphery of the third gate dielectric film, a fifth second-conductive-type high-concentration semiconductor layer arranged on a top of the third island-shaped semiconductor layer, and a sixth second-conductive-type high-concentration semiconductor layer arranged underneath the third island-shaped semiconductor layer; and a second selection transistor arranged at an intersection of the 2nd row and the 1st column, the second selection transistor including a fourth island-shaped semiconductor layer, a fourth gate dielectric film surrounding a periphery of the fourth island-shaped semiconductor layer, a fourth gate electrode surrounding a periphery of the fourth gate dielectric film, a seventh second-conductive-type high-concentration semiconductor layer arranged on a top of the fourth island-shaped semiconductor layer, and an eighth second-conductive-type high-concentration semiconductor layer arranged underneath the fourth island-shaped semiconductor layer wherein the first inverter and the first selection transistor are connected to each other by a first output terminal and second inverter and the second selection transistor are connected to each other by a second output terminal, and wherein an input terminal of the first inverter is connected to the second output terminal and an input terminal of the second inverter is connected to the first output terminal.