摘要:
Some embodiments include methods of forming capacitors. A metal oxide mixture may be formed over a first capacitor electrode. The metal oxide mixture may have a continuous concentration gradient of a second component relative to a first component. The continuous concentration gradient may correspond to a decreasing concentration of the second component as a distance from the first capacitor electrode increases. The first component may be selected from the group consisting of zirconium oxide, hafnium oxide and mixtures thereof; and the second component may be selected from the group consisting of niobium oxide, titanium oxide, strontium oxide and mixtures thereof. A second capacitor electrode may be formed over the first capacitor electrode. Some embodiments include capacitors that contain at least one metal oxide mixture having a continuous concentration gradient of the above-described second component relative to the above-described first component.
摘要:
A method of forming a capacitor includes depositing a dielectric metal oxide layer of a first phase to a thickness no greater than 75 Angstroms over an inner conductive capacitor electrode material. The first phase dielectric metal oxide layer has a k of at least 15. Conductive RuO2 is deposited over and into physical contact with the dielectric metal oxide layer. Then, the RuO2 and the dielectric metal oxide layer are annealed at a temperature below 500° C. The RuO2 in physical contact with the dielectric metal oxide during the annealing facilitates a change of the dielectric metal oxide layer from the first phase to a second crystalline phase having a higher k than the first phase. The annealed dielectric metal oxide layer is incorporated into a capacitor dielectric region of a capacitor construction. Other implementations are disclosed.
摘要:
Methods of forming an oxide are disclosed and include contacting a ruthenium-containing material with a tantalum-containing precursor and contacting the ruthenium-containing material with a vapor that includes water and optionally molecular hydrogen (H2). Articles including a first crystalline tantalum pentoxide and a second crystalline tantalum pentoxide on at least a portion of the first crystalline tantalum pentoxide, wherein the first tantalum pentoxide has a crystallographic orientation that is different than the crystallographic orientation of the second crystalline tantalum pentoxide, are also disclosed.
摘要:
A capacitor structure includes a storage node; a capacitor dielectric on the storage node; and a plate electrode on the capacitor dielectric. The capacitor dielectric may include a Si-doped ZrO2 layer or crystalline ZrSiOx with a Si/(Zr+Si) content ranging between 4-9% by atomic ratio. The capacitor structure further includes an interfacial TiO2/TiON layer between the storage node and the capacitor dielectric.
摘要:
A capacitor structure includes a storage node; a capacitor dielectric on the storage node; and a plate electrode on the capacitor dielectric. The capacitor dielectric may include a Si-doped ZrO2 layer or crystalline ZrSiOx with a Si/(Zr+Si) content ranging between 4-9% by atomic ratio. The capacitor structure further includes an interfacial TiO2/TiON layer between the storage node and the capacitor dielectric.
摘要:
A method of forming a capacitor includes forming a conductive metal first electrode layer over a substrate, with the conductive metal being oxidizable to a higher degree at and above an oxidation temperature as compared to any degree of oxidation below the oxidation temperature. At least one oxygen containing vapor precursor is fed to the conductive metal first electrode layer below the oxidation temperature under conditions effective to form a first portion oxide material of a capacitor dielectric region over the conductive metal first electrode layer. At least one vapor precursor is fed over the first portion at a temperature above the oxidation temperature effective to form a second portion oxide material of the capacitor dielectric region over the first portion. The oxide material of the first portion and the oxide material of the second portion are common in chemical composition. A conductive second electrode layer is formed over the second portion oxide material of the capacitor dielectric region.
摘要:
Capacitors and methods of forming capacitors are disclosed, and which include an inner conductive metal capacitor electrode and an outer conductive metal capacitor electrode. A capacitor dielectric region is received between the inner and the outer conductive metal capacitor electrodes and has a thickness no greater than 150 Angstroms. Various combinations of materials of thicknesses and relationships relative one another are disclosed which enables and results in the dielectric region having a dielectric constant k of at least 35 yet leakage current no greater than 1×10−7 amps/cm2 at from −1.1V to +1.1V.
摘要翻译:公开了形成电容器的电容器和方法,其包括内部导电金属电容器电极和外部导电金属电容器电极。 电容器电介质区域被容纳在内导电金属电容电极和外导电金属电容器电极之间,并且具有不大于150埃的厚度。 公开了厚度和关系的材料的各种组合,其相互之间可以实现和导致电介质区域的介电常数k至少为35,而在-1.1V至-1.0V的范围内漏电流不大于1×10-7Aps / cm 2 + 1.1V。
摘要:
The invention includes ALD-type methods in which two or more different precursors are provided within a chamber at different and substantially non-overlapping times relative to one another to form a material, and the material is thereafter exposed to one or more reactants to change a composition of the material. In particular aspects, the precursors utilized to form the material are metal-containing precursors, and the reactant utilized to change the composition of the material comprises oxygen, silicon, and/or nitrogen.