Applied Materials

The Mirra is a CMP system, a class of semiconductor process equipment used to remove material from a wafer surface while reducing topography. Machines of this class are built around a rotating platen and a polishing head that hold the wafer against a consumable polishing surface.
Such systems are used to produce a flatter surface than can be obtained by deposition or etch steps alone. In microfabrication, planarization supports later patterning and interconnect formation by making the surface more uniform.
A CMP machine works by pressing the wafer against a polishing pad while a slurry or other chemical process fluid is introduced at the interface. The pad motion, wafer motion, pressure, and chemistry act together to remove material from exposed regions of the surface.
The mechanical component provides controlled abrasion, while the chemical component helps soften or modify the surface material being removed. The combination allows the process to favor planarity and reduce surface nonuniformity across the wafer.
This class of machine is typically used after deposition, oxidation, or other film-forming steps when a planar surface is needed before additional processing. It may also be used after fill or pattern-transfer steps that leave uneven topography.
CMP machines are generally used for planarizing dielectric films, metal films, and other layered structures in semiconductor manufacturing. They are also used anywhere a controlled, flat surface is needed to support subsequent lithography, etch, or deposition steps.
Documented failure modes, common issues, and field considerations.
| Designation | Generation | Vintage | Changes | Source |
|---|---|---|---|---|
| Applied Materials Mirra CMP | — | 1999 | Sources list configurations including Tungsten or Dielectric process use, software MP2B6.2_28 / MP2B6.2 28, three polish platens, and different polish head / flow controller descriptions. | Equipment inventory listing[3] |
| Mirra | — | 1999 | — | Equipment inventory listing[3] |
| Tungsten | — | 1999 | Listed with tungsten processing; one source also states 4 tungsten polish heads and one notes tungsten + polish heads. | Equipment inventory listing[3] |
| Dielectric | — | 1999 | Listed with dielectric processing. | Equipment inventory listing[2] |
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It removes material from a wafer surface in a controlled way to make the surface flatter and more uniform.
The chemical action changes the surface so the mechanical polishing can remove material more effectively and with better planarity.
It is used after steps that create films or topography, when the wafer needs to be leveled before later processing.
Machines of this class are used on a range of wafer films, including dielectric and metal layers, depending on the process recipe.
The main result is a smoother, flatter wafer surface with reduced topography.
The following facts about the Mirra are absent from this record as of this revision. First-hand knowledge or a citation closes a gap; every submission is reviewed before publication.
No publicly documented production dates or lifecycle milestones (introduction, end of production, EOL) for the Mirra are on record.
Answerable by: OEM historical records or a trade-press announcement
The control-system platform and OS era of the Mirra are not on record.
Answerable by: an engineer who operated it or OEM installation records
The process node or technology generation of the Mirra is not on record.
Answerable by: an OEM datasheet or a fab qualification report
No publicly documented compatible parts, consumables, or accessories for the Mirra are on record.
Answerable by: an OEM parts catalog or a service engineer
No publicly hosted manuals, SOPs, or datasheets for the Mirra are on record.
Answerable by: university cleanroom staff or an OEM application specialist
Last updated Jul 30, 2026.