Patent ID: 9053760
Filing Date: 2015-06-09
Classification: G11C,H01L

Abstract:
1. A semiconductor device, comprising: a first memory cell; a second memory cell; a first bit line extending in a first direction and being connected to the first memory cell; a second bit line extending in the first direction and being connected to the second memory cell; a first power line; and a sense amplifier circuit comprising a first transistor and a second transistor, the first transistor including a first gate electrode that is formed over a first channel region and connected to the first bit line, a first diffusion region that is connected to the second bit line and includes a first side edge defining the first channel region and a second diffusion region that is connected to the first power line and includes a second side edge defining the first channel region, and the second transistor including a second gate electrode that is formed over a second channel region and connected to the second bit line, a third diffusion region that is connected to the first bit line and includes a third side edge defining the second channel region and a fourth diffusion region that is connected to the first power line and includes a fourth side edge defining the second channel region; wherein each of the first side edge of the first diffusion region, the second side edge of the second diffusion region, the third side edge of the third diffusion region and the fourth side edge of the fourth diffusion region extends in a second direction, that crosses the first direction, without substantial extension in the first direction; wherein the sense amplifier circuit further comprises a third transistor that includes a third gate electrode that receives an equalizing control signal, the first diffusion region, the third diffusion region, and a third channel region provided between the first diffusion region and the third diffusion region; and wherein the third transistor electrically connects the first diffusion region and the third diffusion region in response to activation by the equalizing control signal.