Patent ID: 6897542
Filing Date: 2005-05-24
Classification: H01L

Abstract:
1. A semiconductor assembly, comprising: a semiconductor substrate comprising a semiconductor material having a pair of conductively-doped diffusion regions extending therein; one of said pair of diffusion regions being a first diffusion region and the other of said pair of diffusion regions being a second diffusion region; the first diffusion region having a first outermost lateral periphery; the second diffusion region having a second outermost lateral periphery; an insulative material over the substrate; the insulative material having a first opening extending therethroughto the first diffusion region and having a second opening extending therethrough to the second diffusion region; the first opening having an outermost lateral periphery coextensive with the first outermost lateral periphery, and the second opening having an outermost lateral periphery coextensive with the second outermost lateral periphery; the first opening having a bottom periphery comprising the first diffusion region, and the second opening having a bottom periphery comprising the second diffusion region; a dielectric material within the first and second openings; the dielectric material being a first liner within the first opening and being a second liner within the second opening; the first liner being at the first outermost lateral periphery of the first diffusion region and extending entirely across the first diffusion region at the bottom periphery of the first opening; the second liner being at the second outermost lateral periphery of the second diffusion region not extending across a predominant portion of the second diffusion region at the bottom periphery of the second opening; conductive material plugs within the first and second openings; the conductive material plug within the first opening being a first conductive plug, and being spaced from the first diffusion region by the first liner; the conductive material plug within the second opening being a second conductive plug and being in direct physical contact with the second diffusion region; and the first diffusion region, dielectric material within the first opening, and first conductive material plug together being incorporated into an anti-fuse construction.