A semiconductor device, in which both a reduction in a resistivity of a gate electrode and stabilization of transistor characteristics is achieved, and a manufacturing method thereof are disclosed. According to one aspect of the present invention, it is provided a semiconductor device comprising a semiconductor substrate, a plurality of gate electrodes each including an electric charge storage layer formed on the semiconductor substrate through a first insulator, first and second conductor layers, and a second insulator disposed between the electric charge storage layer and the first conductor layer, a barrier insulator provided between the gate electrodes and being in contact with side surfaces alone of the gate electrodes, and an interlayer insulator provided in contact with an upper surface of the second conductor layer.

 
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< Image forming apparatus including controller driving image carriers

> Image forming apparatus featuring accurate positioning of an intermediate transfer roller relative to a main body of the apparatus

> Microelectronic package including temperature sensor connected to the package substrate and method of forming same

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