Abstract:
Systems and methods for sputtering a layer of refractory metal layer onto a barrier layer disposed on a substrate are disclosed herein. In one or more embodiments, a method of sputter depositing a tungsten structure in an integrated circuit includes: moving a substrate into a plasma processing chamber and onto a substrate support in opposition to a sputter target assembly comprising a tungsten target having no more than ten parts per million of carbon and no more than ten parts per million of oxygen present as impurities; flowing krypton into the plasma processing chamber; and exciting the krypton into a plasma to deposit, by sputtering, a tungsten film layer on a material layer of a substrate supported by the substrate support. In some embodiments, the target assembly further includes a titanium backing plate and an aluminum bonding layer disposed between the titanium backing plate and the tungsten target.
Abstract:
Embodiments described herein provide a semiconductor device and methods and apparatuses of forming the same. The semiconductor device includes a substrate having a source and drain region and a gate electrode stack on the substrate between the source and drain regions. In one embodiment, the method includes positioning a substrate within a processing chamber, wherein the substrate includes a source and drain region, a gate dielectric layer between the source and drain regions, and a conductive film layer on the gate dielectric layer. The method also includes depositing a refractory metal nitride film layer on the conductive film layer, depositing a silicon-containing film layer on the refractory metal nitride film layer, and depositing a tungsten film layer on the silicon-containing film layer.
Abstract:
Systems and methods for sputtering a layer of refractory metal layer onto a barrier layer disposed on a substrate are disclosed herein. In one or more embodiments, a method of sputter depositing a tungsten structure includes: moving a substrate into a plasma processing chamber and onto a substrate support in opposition to a sputter target assembly comprising a tungsten target having no more than ten parts per million of carbon and no more than ten parts per million of oxygen present as impurities; and generating a plasma within the plasma processing chamber to deposit, by sputtering, a tungsten film layer on a material layer of a substrate supported by the substrate support. In some embodiments, the target assembly further includes a titanium backing plate and an aluminum bonding layer disposed between the titanium backing plate and the tungsten target.
Abstract:
In some embodiments a method of processing a substrate disposed atop a substrate support in a physical vapor deposition process chamber includes: (a) depositing a dielectric layer to a first thickness atop a first surface of the substrate via a physical vapor deposition process; (b) providing a first plasma forming gas to a processing region of the physical vapor deposition process chamber, wherein the first plasma forming gas comprises hydrogen but not carbon; (c) providing a first amount of bias power to a substrate support to form a first plasma from the first plasma forming gas within the processing region of the physical vapor deposition process chamber; (d) exposing the dielectric layer to the first plasma; and (e) repeating (a)-(d) to deposit the dielectric film to a final thickness.
Abstract:
According to embodiments provide a method for forming dielectric films using physical vapor deposition chamber. Particularly, a pasting process may be performed to apply a conductive coating over inner surfaces of the physical vapor deposition chamber. The pasting process may be performed under adjusted process parameters, such as increased spacing and/or increased chamber pressure. The adjusted parameters allow the conductive coating to be formed more efficiently and effectively.