Patent ID: 7009234

Claim:
A semiconductor device comprising: a first impurity diffusion layer formed in a semiconductor substrate in a first region; a second impurity diffusion layer formed in the semiconductor substrate in a second region; a first insulating film formed over the semiconductor substrate; a first hole in the first insulating film over the first impurity diffusion layer in the first region; a first conductive plug formed in the first hole; a wiring formed on the first insulating film in the first region; a second insulating film formed over the wiring and the first insulating film in the first region and the second region; a second hole formed in the second insulating film away from the wiring in the first region and connected to the first hole; an electrode formed on the second insulating film in the first region and connected electrically to the first conductive plug through the second hole; a third hole formed in the first insulating film over the second impurity diffusion layer in the second region; a fourth hole formed in the second insulating film on the third hole in the second region; a second conductive plug formed in the third hole; a third conductive plug formed in the fourth hole; and a third insulating film formed of material different from the second insulating film, formed on side surfaces of the wiring, and formed from on a portion of an upper surface of the second conductive plug to on a portion of the first insulating film around the second conductive plug: wherein, the fourth hole is formed to pass through a portion of the third insulating film on the upper surface of the second conductive plug, and is formed on the upper surface of the second conductive plug and on an upper surface of the first insulating film.