Intel Corporation

Andre Baran

Bernhard Sell

Nick Lindert

Timothy E Glassman

Chieh-Jen Ku

Timothy Jen

David Goldstein

Transistors with metal oxide channel material that is in-situ doped for desired charge carrier concentrations. The metal oxide channel material may be deposited by atomic layering of multiple constituent metals with an oxidation of each layer. Such an ALD process may be performed by cyclically depositing a precursor of one of the metals upon a substrate during a deposition phase, and oxidizing the absorbed precursor during an oxidation phase. For a quinary metal oxide, each of three metal precursors may be introduced and oxidized during the ALD process, and charge carrier concentrations may be modulated by further introducing a fourth metal precursor during the ALD process in a manner that disperses this dopant metal within the film at a significantly lower chemical concentration than the other metals.

Low defect, high mobility thin film transistors with in-situ doped metal oxide channel material

Metal-insulator-metal (MIM) capacitors with insulator stacks having a plurality of metal oxide layers are described. For example, a MIM capacitor for a semiconductor device includes a trench disposed in a dielectric layer disposed above a substrate. A first metal plate is disposed along the bottom and sidewalls of the trench. An insulator stack is disposed above and conformal with the first metal plate. The insulator stack includes a first metal oxide layer having a first dielectric constant and a second metal oxide layer having a second dielectric constant. The first dielectric constant is higher than the second dielectric constant. The MIM capacitor also includes a second metal plate disposed above and conformal with the insulator stack.

Metal-insulator-metal (MIM) capacitor with insulator stack having a plurality of metal oxide layers

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Hillsboro, OR, United States of America

Andre Baran