Patent ID: 6239500
Filing Date: 2001-05-29
Classification: H01L

Abstract:
A semiconductor device comprising:a semiconductor substrate having a surface area of a first conductivity type;a field insulating film for defining a plurality of active regions disposed regularly in terms of two dimensions on a surface of the semiconductor substrate, each active region including one bit contact region and subsidiary active regions extending from the bit contact region in four directions, the field insulating film also defining a common active region for connecting in common, ends of subsidiary active regions opposite to the bit contact region;a plurality of first and second word lines, the plurality of first word lines extending as a whole in a first direction on the semiconductor substrate, the plurality of second word lines extending as a whole in a second direction on the semiconductor substrate, the first direction crossing the second direction, and in each active region two subsidiary active regions crossing the first word lines and remaining two subsidiary active regions crossing the second word lines;a plurality of bit lines crossing the first and second directions on the semiconductor substrate, each bit contact region being connected to a corresponding one of the bit lines; andan interlayer insulating region for insulating the first word lines, the second word lines, and the bit lines from one another.