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Applied Materials

AMC 7821 EPI

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The Applied Materials AMC 7821 EPI is an epitaxial silicon deposition system. The AMC 7821 EPI processes 6-inch wafers.[1][2][3]

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What it is

The AMC 7821 is an epitaxial silicon deposition system manufactured by Applied Materials. The system is designed for six-inch wafers.[1][2][3]

How it works

General reference — not yet source-verified

Epitaxial deposition systems operate by chemical vapor deposition at high temperature. A silicon-containing precursor gas, such as silane or dichlorosilane, is introduced into a reaction chamber with a hydrogen carrier gas. The gas decomposes on the heated wafer surface, depositing a single-crystal silicon layer that replicates the crystal orientation of the underlying wafer.

Where it fits in the process flow

General reference — not yet source-verified

Epitaxial deposition typically follows wafer cleaning and precedes further processing steps such as lithography, etching, and doping. The epitaxial layer serves as the active region for many semiconductor devices, providing a high-quality crystalline surface with controlled resistivity.

Applications

General reference — not yet source-verified

Epitaxial layers enable precise control of doping concentration and layer thickness, which is critical for high-performance and power devices. The system can also be used for epitaxial growth on patterned wafers in the fabrication of advanced device structures.

What do the numbers mean?

Wafer handling1

Wafer size
6 inch[1]
Accurate?

Configuration & options5

Process type
Epitaxial silicon deposition[1]
Accurate?
OEM
Applied Materials[1]
Accurate?
Model
AMC 7821[1]
Accurate?
Process
Epitaxial Silicon Deposition[1]
Accurate?
Vintage
1983[1]
Accurate?

Vintage & configurations

Documented models & variants

DesignationGenerationVintageChangesSource
AMC 7821 EPI—1983–2001—Equipment inventory listing[1]
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Where are the manuals?

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Not publicly documented

Field notes

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Frequently asked questions

What is the manufacturer of the AMC 7821?

The AMC 7821 is manufactured by Applied Materials.[1][3]

What wafer size does the AMC 7821 support?

The system supports six-inch wafers.[1][2][3]

Not publicly documented

The following facts about the AMC 7821 EPI 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 AMC 7821 EPI are on record.

    Answerable by: OEM historical records or a trade-press announcement

  • The control-system platform and OS era of the AMC 7821 EPI are not on record.

    Answerable by: an engineer who operated it or OEM installation records

  • No publicly documented failure modes or field errata for the AMC 7821 EPI are on record.

    Answerable by: a field service engineer, process engineer, or maintenance technician

  • The process node or technology generation of the AMC 7821 EPI is not on record.

    Answerable by: an OEM datasheet or a fab qualification report

  • No publicly documented compatible parts, consumables, or accessories for the AMC 7821 EPI are on record.

    Answerable by: an OEM parts catalog or a service engineer

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Sources & citations

Sources (3)Every fact above is drawn from these public sources
  1. [1]Equipment inventory listing
  2. [2]Equipment inventory listing
  3. [3]AMAT AMC7821 EPI | SemiStar — semistarcorp.comsemistarcorp.com
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Last updated Oct 7, 2026.

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