Abstract:
The present disclosure pertains to embodiments of a showerhead assembly which can be used to deposit semiconductor layers using processes such as atomic layer deposition (ALD). The showerhead assembly has a showerhead which has an increased thickness which advantageously decreases reactor chamber size and decreases cycling time. Decreased cycling time can improve throughput and decrease costs.
Abstract:
Methods and systems for depositing vanadium nitride layers onto a surface of the substrate and structures and devices formed using the methods are disclosed. An exemplary method includes using a cyclical deposition process, depositing a vanadium nitride layer onto a surface of the substrate. The cyclical deposition process can include providing a vanadium halide precursor to the reaction chamber and separately providing a nitrogen reactant to the reaction chamber. The cyclical deposition process may desirably be a thermal cyclical deposition process.
Abstract:
A method for forming a layer comprising SiOCN on a substrate is disclosed. An exemplary method includes thermally depositing the layer comprising SiOCN on a surface of the substrate. The layer comprising SiOCN can be used for various applications, including spacers, etch stop layers, and etch resistant layers.
Abstract:
Methods of forming thin-film structures including metal carbide material, and structures and devices including the metal carbide material are disclosed. Exemplary structures include metal carbide material formed using two or more different processes (e.g., two or more different precursors), which enables tuning of various metal carbide material properties, including resistivity, current leakage, and work function.
Abstract:
Herein disclosed are systems and methods related to solid source chemical vaporizer vessels and multiple chamber deposition modules. In some embodiments, a solid source chemical vaporizer includes a housing base and a housing lid. Some embodiments also include a first and second tray configured to be housed within the housing base, wherein each tray defines a first serpentine path adapted to hold solid source chemical and allow gas flow thereover. In some embodiments, a multiple chamber deposition module includes first and second vapor phase reaction chambers and a solid source chemical vaporizer vessel to supply each of the first and second vapor phase reaction chambers.
Abstract:
Methods of forming thin-film structures including metal carbide material, and structures and devices including the metal carbide material are disclosed. Exemplary structures include metal carbide material formed using two or more different processes (e.g., two or more different precursors), which enables tuning of various metal carbide material properties, including resistivity, current leakage, and work function.
Abstract:
A method for treating a deposition reactor is disclosed. The method removes or mitigates formation of residue in a gas-phase reactor used to deposit doped metal films, such as aluminum-doped titanium carbide films or aluminum-doped tantalum carbide films. The method includes a step of exposing a reaction chamber to a treatment reactant that mitigates formation of species that lead to residue formation.
Abstract:
Threshold voltage (Vt) tuning layers may be sensitive to etching by reactants used to deposit overlying gate material, such as metal nitride. Methods for depositing Vt tuning layers are provided. In some embodiments Vt tuning layers may comprise a Vt tuning material in a neutral matrix. In some embodiments, processes for reducing or eliminating the etching of Vt tuning layers by halide reactants are described. In some embodiments a Vt tuning layer, such as a metal oxide layer, is treated by a nitridation process following deposition and prior to subsequent deposition of a metal nitride capping layer. In some embodiments an etch-protective layer, such as a NbO layer, is deposited over a Vt tuning layer prior to deposition of an overlying metal nitride layer.
Abstract:
Aspects of the disclosure relate to the field of semiconductor devices, including methods and systems for manufacturing semiconductor devices. More particularly, semiconductor structures comprise a dipole layer, which can be formed from a metal and carbon containing layer. Further described are related methods, deposition systems, and devices.
Abstract:
A cooling apparatus and methods for maintaining a precursor source vessel heater at a desired temperature are disclosed. The apparatus and methods can be used to maintain a desired temperature gradient within the precursor source vessel for improved integrity of the precursor source before delivery of the precursor to a reaction chamber. The apparatus and methods can also be used for rapid cooling of a source vessel for maintenance.