Inventors:
Anurag Jindal - Boise ID, US
Gowri Damarla - Boise ID, US
Roger W. Lindsay - Boise ID, US
Eric Blomiley - Boise ID, US
International Classification:
H01L 29/788
H01L 29/792
H01L 21/30
H01L 21/28
H01L 21/306
US Classification:
257315, 438593, 438696, 438584, 257324, 257E21209, 257E21219, 257E21211, 257E293, 257E29309
Abstract:
Methods of forming multi-tiered semiconductor devices are described, along with apparatuses that include them. In one such method, a silicide is formed in a tier of silicon, the silicide is removed, and a device is formed at least partially in a void that was occupied by the silicide. One such apparatus includes a tier of silicon with a void between tiers of dielectric material. Residual silicide is on the tier of silicon and/or on the tiers of dielectric material and a device is formed at least partially in the void. Additional embodiments are also described.