Patent ID: 8228724

Claim:
A semiconductor device, comprising: a first transistor including a first gate electrode formed over a semiconductor substrate, a first impurity region formed in the semiconductor substrate and a second impurity region formed in the semiconductor substrate; a second transistor including a second gate electrode formed over the semiconductor substrate, the first impurity region and a third impurity region formed in the semiconductor substrate; a first chalcogenide film formed over the first and second transistors; a first bit line formed over the first and second transistors; and a first source line formed over the first and second transistors, wherein the first and second transistors share the first impurity region, wherein a bottom surface of the first chalcogenide film is electrically connected to the first impurity region, wherein a top surface of the first chalcogenide film is electrically connected to the first source line, and wherein the second and third impurity regions are electrically connected to the first bit line.