Patent ID: 8232543

Claim:
A semiconductor device which includes a memory cell, comprising: a semiconductor substrate which has a front surface; a first ion implanted region formed in the front surface of the semiconductor substrate, and which is a part of a first transistor; a second ion implanted region formed in the front surface of the semiconductor substrate, and which is a part of the first transistor; a third ion implanted region formed in the front surface of the semiconductor substrate, and which is a part of a second transistor; a fourth ion implanted region formed in the front surface of the semiconductor substrate, and which is a part of the second transistor; an insulating formed between an upper region of the first ion implanted region and an upper region of the second ion implanted region, and formed between an upper region of the third ion implanted region and an upper region of the fourth ion implanted region, and extended in a second direction; a phase change film formed over the insulating film and extended in the second direction; an electric conduction film formed on the phase change film and extended in the second direction; a first metallic film formed over the front surface of the semiconductor substrate and extended in a first direction which is perpendicular to the second direction; a second metallic film formed over the front surface of the semiconductor substrate and extended in the first direction; a first plug electrically connected to the first metallic film and the first ion implanted region; a second plug electrically connected to the phase change film and the second ion implanted region; a third plug electrically connected to the second metallic film and the third ion implanted region; and a fourth plug electrically connected to the phase change film and the fourth ion implanted region.