摘要:
A semiconductor substrate processing system for polishing a substrate that generally includes a platen and a web of polishing material disposed thereon. Embodiments of the system include a disposable cartridge for housing the web of polishing material, a shield member disposed proximate the web for preventing contamination of the unused portion of the web, a fluid delivery for fixing and freeing the web from the platen, apparatus for controlling the lateral movement of the web, and an apparatus for providing more linear feet of polishing material per height of a roll.
摘要:
A method and cleaning solution that removes contaminants from a dielectric material and polished surfaces of copper interconnect structures prior to an electroless deposition of a capping layer without substantially adversely affecting the interconnect formed therefrom are disclosed. The cleaning solution includes combinations of a core mixture and sulfuric acid or sulfonic compounds such as sulfonic acids that include methanesulfonic acid. In one embodiment, the core mixture includes a citric acid solution and a pH adjuster such as tetra-methyl ammonium hydroxide or ammonia. One embodiment of the method includes providing a planarized substrate, applying the cleaning solution to the substrate to simultaneously clean at least one metal feature and a dielectric material of the substrate, and depositing the metal capping layer selectively on the at least one metal feature using electroless deposition.
摘要:
A carrier head for chemical mechanical polishing, includes a base, a support structure attached to the base having a surface for contacting a substrate, and a retaining structure attached to the base to prevent the substrate from moving along the surface. The retaining structure and the surface define a cavity for receiving the substrate. The retaining structure includes an upper portion in contact with the base, a lower portion, and a vibration damper separating the upper portion and the lower portion. The vibration damper, the vibration damper includes a material that does not rebound to its original shape when subjected to a deformation.
摘要:
A carrier head for chemical mechanical polishing, includes a base, a support structure attached to the base having a surface for contacting a substrate, and a retaining structure attached to the base to prevent the substrate from moving along the surface. The retaining structure and the surface define a cavity for receiving the substrate. The retaining structure includes an upper portion in contact with the base, a lower portion, and a vibration damper separating the upper portion and the lower portion. The vibration damper, the vibration damper includes a material that does not rebound to its original shape when subjected to a deformation.
摘要:
A carrier head for chemical mechanical polishing is described. The carrier head includes a backing assembly, a housing and a damping material. The backing assembly includes a substrate support surface. The housing is connectable to a drive shaft to rotate with the drive shaft about a rotation axis. In one implementation, the damping material is in a load path between the backing assembly and the housing to reduce transmission of vibrations from the backing assembly to the housing.
摘要:
In one embodiment, a method for activating a metal layer prior to depositing a cobalt-containing capping layer is provided which includes exposing the metal layer to an electroless activation solution to deposit a palladium layer on the metal layer and depositing the cobalt-containing capping layer on the palladium layer. The electroless activation solution contains palladium nitrate at a concentration in a range from about 0.01 mM to about 1.0 mM, nitric acid at a concentration in a range from about 0.01 mM to about 3.0 mM and water. In another embodiment, the electroless activation solution contains palladium nitrate at a concentration in a range from about 0.01 mM to about 1.0 mM, methanesulfonic acid at a concentration in a range from about 0.01 mM to about 3.0 mM and water.
摘要:
Embodiments of the present invention relate to an apparatus and method of annealing substrates in a thermal anneal chamber and/or a plasma anneal chamber before electroless deposition thereover. In one embodiment, annealing in a thermal anneal chamber comprises heating the substrate in a vacuum environment while providing a gas, such as a noble gas, a reducing gas such as hydrogen gas, a non-reducing gas such as nitrogen gas, or combinations thereof. In another embodiment, annealing in a plasma chamber comprises annealing the substrate in a plasma, such as a plasma from an argon gas, helium gas, hydrogen gas, or combinations thereof.
摘要:
A carrier head for chemical mechanical polishing, includes a base, a support structure attached to the base having a surface for contacting a substrate, and a retaining structure attached to the base to prevent the substrate from moving along the surface. The retaining structure and the surface define a cavity for receiving the substrate. The retaining structure includes an upper portion in contact with the base, a lower portion, and a vibration damper separating the upper portion and the lower portion. The vibration damper, the vibration damper includes a material that does not rebound to its original shape when subjected to a deformation.
摘要:
An inventive brush and scrubbing device is provided for simultaneously scrubbing both planar and profiled (e.g., edge) surfaces of a thin disk such as a semiconductor wafer. The inventive brush has a contact surface having two portions, a planar portion for contacting a planar surface of a wafer, and a profiled portion for contacting an edge surface of a wafer. The profile of the profiled portion preferably follows the edge profile of a wafer to be cleaned by the brush. The profiled portion may have a higher modulus of elasticity than does the planar portion. Preferably the brushes are roller type PVA brushes having a plurality of nodules formed thereon.
摘要:
A carrier head for chemical mechanical polishing is described. The carrier head includes a backing assembly, a housing and a damping material. The backing assembly includes a substrate support surface. The housing is connectable to a drive shaft to rotate with the drive shaft about a rotation axis. In one implementation, the damping material is in a load path between the backing assembly and the housing to reduce transmission of vibrations from the backing assembly to the housing.