Waferpedia

Tegal

6520

Etch100mmIntroduced Produced 2001–Tegal 6520 family
Research Quality: 60% complete

The Tegal 6520 HRe is a high-density CCP plasma etch tool. The Tegal 6520 HRe features dual-frequency RF power application and magnetic plasma confinement. The Tegal 6520 HRe supports wafer sizes from 100mm to 200mm.[1][2]

6520 — web.archive.org
Fig. 016520web.archive.org[1]

Wafer size

100mm

Produced

2001–

Power

dual-frequency RF power application[2]

What it is

The Tegal 6520 HRe is a high-density plasma etch tool.[3][1][2]

The Tegal 6520 HRe is a plasma etch system for semiconductor and telecommunications device manufacturing.[3][1][2]

How it works

The Tegal 6520 HRe uses a high-density CCP plasma architecture with dual-frequency RF power application and magnetic plasma confinement.[3][1][2]

Where it fits in the process flow

The Tegal 6520 HRe is used for repeated etch steps in integrated-circuit and related microelectronics manufacturing.[3]

Applications

The Tegal 6520 HRe is used for sub-micron aluminum alloy interconnect stack etch and anisotropic thick aluminum alloy interconnect etch.[1][2][3]

The Tegal 6520 HRe is used for HBT and HEMT gate mesa etch and recess etch.[1][2][3]

  • sub-micron aluminum alloy interconnect stack etch
  • anisotropic thick (>2 micron) aluminum alloy interconnect etch
  • HBT/HEMT gate mesa and recess etch
  • gallium arsenide (GaAs) etching in the production of telecom devices
  • other III-V material etch applications

What do the numbers mean?

Power & electrical1

RF power
dual-frequency RF power application[2]
Accurate?

Wafer handling1

Wafer size
100mm – 200mm[2]
Accurate?

Configuration & options4

Tool type
high-density CCP plasma etch tool[2]
Accurate?
Plasma confinement
magnetic plasma confinement[2]
Accurate?
Process capability
Rinse-Strip-Rinse (RSR)[1]
Accurate?
Process capability
etch-rinse-strip-rinse (E-R-S-R)[3]
Accurate?

Vintage & configurations

  1. 2001Production start[3]

    A Tegal 6520 high-density plasma etch system was ordered and scheduled for installation in June 2001.

  2. 2001-02-13Order announcement[3]

    A source states that an order for a Tegal 6520 high-density plasma etch system was announced on 13 February 2001.

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What does it need to run?

Site utility requirements, footprint, and infrastructure needed to install and operate this tool. Sourced from public records.

  • RF powerdual-frequency RF power application[2]

Where are the manuals?

Generated from public-source data on file. Enter your email to access — nothing is published; details are routed privately.

Not publicly documented

Field notes

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Frequently asked questions

How is etch uniformity controlled on plasma etchers?General reference — not yet source-verified

Uniformity is managed through careful design of the process chamber, gas distribution, electrode geometry, temperature control, and plasma parameters. Regular characterization using test wafers allows process engineers to adjust conditions to maintain consistent results.

What materials can be etched with this class of equipment?General reference — not yet source-verified

Plasma etch systems are generally capable of etching a wide range of materials used in semiconductor devices, including dielectrics such as oxides and nitrides, polysilicon, and various metals. The specific chemistry depends on the material to be removed and the selectivity required to the mask and underlying layers.

What are common concerns when operating plasma etch equipment?General reference — not yet source-verified

Common concerns include process repeatability, particle control, chamber cleanliness, endpoint detection, and maintenance of consumable components that wear or become coated during operation.

Not publicly documented

The following facts about the 6520 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 variants, configuration options, or revision breakpoints of the 6520 are on record.

    Answerable by: an OEM product catalog or an engineer who ordered or specified the tool

  • The control-system platform and OS era of the 6520 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 6520 are on record.

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

  • The process node or technology generation of the 6520 is not on record.

    Answerable by: an OEM datasheet or a fab qualification report

  • No publicly documented compatible parts, consumables, or accessories for the 6520 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]web.archive.org — web.archive.orgweb.archive.org
  2. [2]web.archive.org — web.archive.orgweb.archive.org
  3. [3]web.archive.org — web.archive.orgweb.archive.org
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Last updated Oct 5, 2026.

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