Patent ID: 7977756
Filing Date: 2011-07-12
Classification: H01L

Abstract:
1. A semiconductor storage device comprising: a source region formed in an element region formed on a semiconductor substrate; a first drain region formed in the element region on one side of the source region; a first gate electrode formed on a first channel region between the source region and the first drain region through a first gate insulating film; a second drain region formed in the element region on the other side of the source region; a second gate electrode formed in a second channel region between the source region and the second drain region through a second gate electrode insulating film; a first word line including the first gate electrode and extending in a first direction; a second word line including the second gate electrode and extending in the first direction; a source line extending in a second direction intersecting with the first direction, overlapping with the source region in planar view, and connected to the source region through a first conductor plug; a first magnetoresistive effect element formed above the first drain region and connected to the first drain region through a second conductor plug; a second magnetoresistive effect element formed above the second drain region and connected to the second drain region through a third conductor plug; and a bit line formed on a layer higher than the source line, extending in the second direction, connected to the first magnetoresistive effect element through a fourth conductor plug, and connected to the second magnetoresistive effect element through a fifth conductor plug, wherein the source region includes a first projection portion projecting in the first direction outside of the first drain region and the second drain region, the source line includes a second projection portion projecting in the first direction toward the first drain region and the second drain region, and a portion of the source region including the first projection portion and a portion of the source line including the second projection portion are connected to each other by the first conductor plug.