Patent ID: 8786101

Claim:
A semiconductor device comprising: a first conductive layer; a first insulative layer disposed on the first conductive layer, wherein the first insulative layer comprises a contact opening formed through its entire thickness thereby terminating on the first conductive layer thereby providing a portion of the first conductive layer with no first insulative material thereover; a second conductive layer disposed on the first insulative layer, the portion of the first conductive layer where the opening terminates and over which there is no first insulative layer, and in the contact opening the second conductive material comprising at least one of titanium nitride, titanium, aluminum, tungsten, tungsten silicide, and copper; a second insulative layer disposed on the second conductive layer and in the contact opening, wherein portions of the second conductive layer are not covered by the second insulative layer; and a conductive material disposed on the second insulative layer and in the contact opening, wherein the conductive material is in direct contact with the portions of the second conductive layer.