Constructions comprising hafnium oxide and/or zirconium oxide

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Reexamination Certificate

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C257SE29343

Reexamination Certificate

active

08049304

ABSTRACT:
The invention includes ALD-type methods in which two or more different precursors are utilized with one or more reactants to form a material. In particular aspects, the precursors are hafnium and aluminum, the only reactant is ozone, and the material is hafnium oxide predominantly in a tetragonal crystalline phase.

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Rittersma, Z.M., et al., HfSiO4 Dieletric Layers Deposited by ALD Using HfCI4 and NH2(CH2)3SI(OC2H5)c Precursors, J. Eletrochem. Soc., vol. 151, Issue 11, published Oct. 22, 2004 (Abstract only, 2 pages).

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