Patent ID: 7012294
Filing Date: 2006-03-14
Classification: C23C,H01L

Abstract:
1. A semiconductor construction, comprising: a monocrystalline silicon substrate; a silicon oxide-containing mass over the substrate, and having an opening extending therethrough to the substrate; a silicon-containing layer within the opening and narrowing the opening, the silicon-containing layer having substantially no oxygen therein, the silicon-containing layer having a roughened outer surface and a smooth uppermost surface; a first nitrogen-containing layer extending across the silicon oxide-containing mass and across the smooth uppermost surface of the silicon-containing layer, the first nitrogen-containing layer being in direct contact with the silicon oxide-containing mass and the smooth uppermost surface of the silicon-containing layer, the first nitrogen-containing layer having a first thickness; and a second nitrogen-containing layer extending across the roughened outer surface of the silicon-containing layer, the second nitrogen-containing layer being in direct contact with the roughened outer surface of the silicon-containing layer, the second nitrogen-containing layer having a second thickness which is less than the first thickness.