Abstract:
A method of forming a semiconductor structure. The method comprises forming a protective portion of a liner on at least a portion of stack structures on a substrate. The protective portion comprises a material formulated to adhere to the stack structures. A conformal portion of the liner is formed on the protective portion of the liner or on the protective portion of the liner and exposed materials of the stack structures. At least one of the protective portion and the conformal portion does not comprise aluminum. Additional methods of forming a semiconductor structure are disclosed, as are semiconductor structures including the liners comprising the protective portion and the conformal portion.
Abstract:
A method of forming a semiconductor structure. The method comprises forming a protective portion of a liner on at least a portion of stack structures on a substrate. The protective portion comprises a material formulated to adhere to the stack structures. A conformal portion of the liner is formed on the protective portion of the liner or on the protective portion of the liner and exposed materials of the stack structures. At least one of the protective portion and the conformal portion does not comprise aluminum. Additional methods of forming a semiconductor structure are disclosed, as are semiconductor structures including the liners comprising the protective portion and the conformal portion.
Abstract:
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.
Abstract:
Methods of forming rutile titanium dioxide comprise exposing a transition metal (such as V, Cr, W, Mn, Ru, Os, Rh, Ir, Pt, Ge, Sn, or Pb) to an atmosphere consisting of oxygen gas (O2) to produce an oxidized transition metal over an unoxidized portion of the transition metal. Rutile titanium dioxide is formed over the oxidized transition metal by atomic layer deposition. The oxidized transition metal is sequentially exposed to a titanium halide precursor and an oxidizer. Other methods include oxidizing a portion of a ruthenium material to ruthenium(IV) oxide using an atmosphere consisting of O2, nitric oxide (NO), or nitrous oxide (N2O); and introducing a gaseous titanium halide precursor and water vapor to the ruthenium(IV) oxide to form rutile titanium dioxide on the ruthenium(IV) oxide by atomic layer deposition. Some methods include exposing transition metal to an atmosphere consisting essentially of O2, NO, and N2O.
Abstract:
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.
Abstract translation: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。
Abstract:
Methods of forming rutile titanium dioxide comprise exposing a transition metal (such as V, Cr, W, Mn, Ru, Os, Rh, Ir, Pt, Ge, Sn, or Pb) to an atmosphere consisting of oxygen gas (O2) to produce an oxidized transition metal over an unoxidized portion of the transition metal. Rutile titanium dioxide is formed over the oxidized transition metal by atomic layer deposition. The oxidized transition metal is sequentially exposed to a titanium halide precursor and an oxidizer. Other methods include oxidizing a portion of a ruthenium material to ruthenium(IV) oxide using an atmosphere consisting of O2, nitric oxide (NO), or nitrous oxide (N2O); and introducing a gaseous titanium halide precursor and water vapor to the ruthenium(IV) oxide to form rutile titanium dioxide on the ruthenium(IV) oxide by atomic layer deposition. Some methods include exposing transition metal to an atmosphere consisting essentially of O2, NO, and N2O.
Abstract:
Some embodiments include methods of forming rutile-type titanium oxide. A monolayer of titanium nitride may be formed. The monolayer of titanium nitride may then be oxidized at a temperature less than or equal to about 550° C. to convert it into a monolayer of rutile-type titanium oxide. Some embodiments include methods of forming capacitors that have rutile-type titanium oxide dielectric, and that have at least one electrode comprising titanium nitride. Some embodiments include thermally conductive stacks that contain titanium nitride and rutile-type titanium oxide, and some embodiments include methods of forming such stacks.
Abstract:
Methods of forming a capacitor including forming a titanium nitride material within at least one aperture defined by a support material, forming a ruthenium material within the at least one aperture over the titanium nitride material, and forming a first conductive material over the ruthenium material within the at least one aperture. The titanium nitride material may be oxidized to a titanium dioxide material. A second conductive material may be formed over a surface of the titanium dioxide material. A semiconductor device may include at least one capacitor, wherein a major longitudinal portion of the at least one capacitor is not surrounded by a solid material. The capacitor may include a first electrode; a ruthenium oxide material laterally adjacent the first electrode; a rutile titanium dioxide material laterally adjacent the ruthenium oxide material; and a second electrode laterally adjacent the rutile titanium dioxide material.
Abstract:
Methods of forming a capacitor including forming a titanium nitride material within at least one aperture defined by a support material, forming a ruthenium material within the at least one aperture over the titanium nitride material, and forming a first conductive material over the ruthenium material within the at least one aperture. The titanium nitride material may be oxidized to a titanium dioxide material. A second conductive material may be formed over a surface of the titanium dioxide material. A semiconductor device may include at least one capacitor, wherein a major longitudinal portion of the at least one capacitor is not surrounded by a solid material. The capacitor may include a first electrode; a ruthenium oxide material laterally adjacent the first electrode; a rutile titanium dioxide material laterally adjacent the ruthenium oxide material; and a second electrode laterally adjacent the rutile titanium dioxide material.
Abstract:
A method of forming a semiconductor structure. The method comprises forming a protective portion of a liner on at least a portion of stack structures on a substrate. The protective portion comprises a material formulated to adhere to the stack structures. A conformal portion of the liner is formed on the protective portion of the liner or on the protective portion of the liner and exposed materials of the stack structures. At least one of the protective portion and the conformal portion does not comprise aluminum. Additional methods of forming a semiconductor structure are disclosed, as are semiconductor structures including the liners comprising the protective portion and the conformal portion.