Waferpedia

KLA

Candela 8520 Wafer

Candela 8520 Wafer — Inventory photo
Fig. 01Candela 8520 WaferInventory photo[1]

Wafer size

Wafer Thickness 350μm ~ 1100μm

Power

50/60 Hz[1]

Vacuum

100 psi / 689 KPa (± 10% range)[2]

Optics

The Candela 85 XX uses two lasers[2]

What it is

The KLA Candela 8520 Wafer is a semiconductor wafer inspection system.[1][3][2]

The KLA Candela 8520 Wafer is a metrology and inspection tool for 6 inch wafers.[1][3][2]

How it works

The KLA Candela 8520 Wafer supports wafer mapping with a micro optical sensor and SECS-GEM interfaces.[2]

Where it fits in the process flow

General reference — not yet source-verified

Wafer inspection equipment belongs in the inspection and metrology portion of semiconductor manufacturing.

Wafer inspection systems are used after process steps that create films, surfaces, or structures, and they provide feedback before later fabrication steps continue.

Applications

The KLA Candela 8520 Wafer supports wafer sizes of 6 inch.[1][3][2]

What do the numbers mean?

Power & electrical11

50/60 Hz[1]
Accurate?
Voltage
208 VAC[1]
Accurate?
Single Phase[1]
Accurate?
Voltage
230 V[2]
Accurate?
20 amps[2]
Accurate?
Power
230 V[2]
Accurate?
Electrical phase
1 Phase[2]
Accurate?
Electrical wiring
3 Wire[2]
Accurate?
Current
20 amps[2]
Accurate?
Frequency
50/60 Hz[2]
Accurate?
Electrical
1 Phase, 3 Wire, 230 V, 20 amps, 50/60 Hz[2]
Accurate?

Vacuum & pumping3

CDA Pressure
100 psi / 689 KPa (± 10% range)[2]
Accurate?
Vacuum Pressure
-680 mm Hg / -90 KPa (± 10% range).[2]
Accurate?
Vacuum flow
0.64 SCFM / 18 L/min (± 10% range)[2]
Accurate?

Wafer handling11

Wafer size
Wafer Thickness 350μm ~ 1100μm[2]
Accurate?
Wafer size
Wafer Carrier 2 FUP 6 and 8[2]
Accurate?
Wafer size
Wafer Mapping Micro Optical Sensor[2]
Accurate?
Model
Candela 8520 Wafer[1]
Accurate?
Equipment type
Wafer inspection system[1]
Accurate?
Wafer size
6 inch[1]
Accurate?
Wafer thickness
350μm ~ 1100μm[2]
Accurate?
Wafer carrier
2 FUP 6 and 8[2]
Accurate?
Wafer mapping sensor
Micro Optical Sensor[2]
Accurate?
SiC Sub; SiC Epi (T); Adjustable UI; 6" Ring Chuck; Aluminum 2-8" EE; 150mm Cassette Locator[1]
Accurate?
Category
Wafer Inspection System[1]
Accurate?

Optics & imaging6

The Candela 85 XX uses two lasers[2]
Accurate?
405 nm wavelength, 60 mW power (Class IIIb per CDRH 21CFR 1040).[2]
Accurate?
355 nm wavelength, 20 mW power (Class IIIb per CDRH 21CFR 1040).[2]
Accurate?
Laser 1
405 nm wavelength, 60 mW power, Class IIIb per CDRH 21CFR 1040[2]
Accurate?
Laser 2
355 nm wavelength, 20 mW power, Class IIIb per CDRH 21CFR 1040[2]
Accurate?
Laser wavelengths
405 nm and 355 nm[2]
Accurate?

Control & software2

SECS-GEM Interfaces[2]
Accurate?
Interface
SECS-GEM[2]
Accurate?

Dimensions & facilities1

CDA flow
2 SCFM / 80 L/min (± 10% range)[2]
Accurate?

Configuration & options11

20 A[1]
Accurate?
Largest Load
8 A[1]
Accurate?
Phase
1 Phase[2]
Accurate?
3 Wire[2]
Accurate?
Flow
2 SCFM / 80 L/min (± 10% range).[2]
Accurate?
AMC
maximum concentration of Volatile Organic Compounds (VOC) must be less than 150 ng/l.[2]
Accurate?
Anions must be less than 14 ng/l. Cations must be less than 10 ng/l.[2]
Accurate?
Moisture Content
less than 20 PPM at 1.0 atm, corresponding to a dewpoint of -30° Celsius (-22°F).[2]
Accurate?
Flow
0.64 SCFM / 18 L/min (± 10% range).[2]
Accurate?
SiC Sub; SiC Epi (T)[1]
Accurate?
OEM
KLA[1]
Accurate?
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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.

  • Configuration50/60 Hz[1]
  • Voltage208 VAC[1]
  • ConfigurationSingle Phase[1]
  • Voltage230 V[2]
  • Configuration20 amps[2]
  • CDA Pressure100 psi / 689 KPa (± 10% range)[2]
  • Vacuum Pressure-680 mm Hg / -90 KPa (± 10% range).[2]
  • Power230 V[2]
  • Electrical phase1 Phase[2]
  • Electrical wiring3 Wire[2]
  • Current20 amps[2]
  • Frequency50/60 Hz[2]
  • Vacuum flow0.64 SCFM / 18 L/min (± 10% range)[2]
  • Electrical1 Phase, 3 Wire, 230 V, 20 amps, 50/60 Hz[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

What wafer size does the KLA Candela 8520 Wafer support?

The KLA Candela 8520 Wafer supports 6 inch wafers.[1][3][2]

Not publicly documented

The following facts about the Candela 8520 Wafer 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 Candela 8520 Wafer are on record.

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

  • No publicly documented variants, configuration options, or revision breakpoints of the Candela 8520 Wafer 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 Candela 8520 Wafer 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 Candela 8520 Wafer are on record.

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

  • The process node or technology generation of the Candela 8520 Wafer is not on record.

    Answerable by: an OEM datasheet or a fab qualification report

No research found yet — worked with this tool? Share what you know.

Sources & citations

Sources (3)Every fact above is drawn from these public sources
  1. [1]Inventory photo
  2. [2]Inventory photo
  3. [3]Equipment inventory listing
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Last updated Oct 10, 2026.

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