Patent ID: 7808041

Claim:
A semiconductor construction, comprising: a semiconductor substrate which includes a projection of semiconductor material laterally surrounded by electrically insulative material; the electrically insulative material comprising a first silicon dioxide-containing material, a second silicon dioxide-containing material, and a silicon nitride-containing material; the first and second silicon dioxide-containing materials differing from one another at least in density; a pair of gateline trenches extending into the electrically insulative material; one of the gateline trenches being a first gateline trench, and the other being a second gateline trench; the second gateline trench being deeper than the first gateline trench; first gateline material within the first gateline trench; second gateline material within the second gateline trench; first source/drain regions within the projection and gatedly connected to one another by the first gateline material; and second source/drain regions within the projection and gatedly connected to one another by the second gateline material.