摘要:
A substrate cleaning apparatus has a remote source to remotely energize a hydrogen-containing gas to form an energized gas having a first ratio of ionic hydrogen-containing species to radical hydrogen-containing species. The apparatus has a process chamber with a substrate support, an ion filter to filter the remotely energized gas to form a filtered energized gas having a second ratio of ionic hydrogen-containing species to radical hydrogen-containing species, the second ratio being different than the first ratio, and a gas distributor to introduce the filtered energized gas into the chamber.
摘要:
A magnetron sputter reactor for sputtering deposition materials such as tantalum, tantalum nitride and copper, for example, and its method of use, in which self-ionized plasma (SIP) sputtering and inductively coupled plasma (ICP) sputtering are promoted, either together or alternately, in the same chamber. Also, bottom coverage may be thinned or eliminated by ICP resputtering. SIP is promoted by a small magnetron having poles of unequal magnetic strength and a high power applied to the target during sputtering. ICP is provided by one or more RF coils which inductively couple RF energy into a plasma. The combined SIP-ICP layers can act as a liner or barrier or seed or nucleation layer for hole. In addition, an RF coil may be sputtered to provide protective material during ICP resputtering.
摘要:
A method of forming a titanium silicide nitride (TiSiN) layer on a substrate id described. The titanium silicide nitride (TiSiN) layer is formed by providing a substrate to a process chamber and treating the substrate with a silicon-containing gas. A titanium nitride layer is formed on the treated substrate and exposed to a silicon-containing gas. The titanium nitride (TiN) layer reacts with the silicon-containing gas to form the titanium silicide nitride (TiSiN) layer. The formation of the titanium silicide nitride (TiSiN) layer is compatible with integrated circuit fabrication processes. In one integrated circuit fabrication process, the titanium silicide nitride (TiSiN) layer may be used as a diffusion barrier for a tungsten (W) metallization process.
摘要:
The construction of a film on a wafer, which is placed in a processing chamber, may be carried out through the following steps. A layer of material is deposited on the wafer. Next, the layer of material is annealed. Once the annealing is completed, the material may be oxidized. Alternatively, the material may be exposed to a silicon gas once the annealing is completed. The deposition, annealing, and either oxidation or silicon gas exposure may all be carried out in the same chamber, without need for removing the wafer from the chamber until all three steps are completed. A semiconductor wafer processing chamber for carrying out such an in-situ construction may include a processing chamber, a showerhead, a wafer support and a rf signal means. The showerhead supplies gases into the processing chamber, while the wafer support supports a wafer in the processing chamber. The rf signal means is coupled to the showerhead and the wafer support for providing a first rf signal to the showerhead and a second rf signal to the wafer support.