Waferpedia

Rigaku

3640 Wafer Disk Analyzer

Produced 1977–Rigaku 3640 Wafer Disk Analyzer family
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The Rigaku 3640 Wafer Disk Analyzer is a wafer and disk analyzer. The Rigaku 3640 Wafer Disk Analyzer was developed as an advanced model capable of handling next-generation memory. The Rigaku 3640 Wafer Disk Analyzer has a sample chamber for 8 inch maximum samples.[1]

Rigaku3640 Wafer Disk Analyzer
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Produced

1977–

Power

Rh target, 3 kW[1]

Vacuum

Dry pump (QDP-80)[1]

What it is

The Rigaku 3640 Wafer Disk Analyzer is a wafer and disk analyzer used for semiconductor and thin-film measurement work. The Rigaku Wafer/Disk Analyzer series is a dedicated wafer analyzer line, and the 3640 is an advanced model in that series.[1]

How it works

The Rigaku 3640 uses an XYθ sample stage that permits XY motion while keeping the wafer direction fixed. The model also uses a spin mechanism for center measurement, a dry pump, an automatic pressure controller, and an X-ray tube with a rhodium target and a three kilowatt generator.[1]

The Rigaku 3640 includes a cassette-to-cassette handling option and orientation flat or notch adjustment. The analyzer also supports simultaneous analysis of multiple elements, fixed goniometers for each element, and a scanning goniometer for titanium through uranium.[1]

Where it fits in the process flow

The Rigaku 3640 is suited to production and development environments that require wafer-level analysis, including cassette-to-cassette handling and online or offline analysis functions. The model also includes software for multilayer thin-film analysis and wafer measuring direction setting.[1]

Applications

The Rigaku 3640 is applicable to ferroelectric memory, DRAM, surface acoustic wave devices, memory disks, and magnetic heads. The model is also used for thin-film analysis on materials such as BPSG, PSG, polysilicon, silicon dioxide, silicon nitride, tungsten silicide, aluminum copper alloys, titanium nitride, titanium tungsten, strontium titanate, and tantalum oxide.[1]

The Rigaku 3640 supports analysis of materials associated with ferroelectric memories, including Y1, PZT, BST, and platinum. The model also covers materials used in memory disk and magnetic head applications, including Co-Ni-Cr, Ni-P, Fe-Tb-Co, Fe-Ni, and CoNbZr.[1]

What do the numbers mean?

Power & electrical2

X-ray tube
Rh target, 3 kW[1]
Accurate?
X-ray generator
Maximum output: 3 kVA[1]
Accurate?

Vacuum & pumping2

Automatic vacuum degree controller
13 Pa ± 1 Pa (APC: automatic pressure controller)[1]
Accurate?
Vacuum pump
Dry pump (QDP-80)[1]
Accurate?

Wafer handling4

Model
3640 Wafer / Disk Analyzer[2]
Accurate?
Wafer size
8 inch[2]
Accurate?
Cassette-to-cassette
Optional[1]
Accurate?
Software
Multiwindow/multitask FP method for multilayer thin film wafer measuring direction setting program[1]
Accurate?

Control & software3

Personal computer
DOS/V compatible[1]
Accurate?
Operating system
OS/2 Warp[1]
Accurate?
Display/peripherals
15" color CRT, ink jet printer[1]
Accurate?

Configuration & options10

Make
Rigaku[2]
Accurate?
Sample size
8" max.[1]
Accurate?
Sample stage
XYθ driving system, spin mechanism (for center measurement)[1]
Accurate?
Elements for simultaneous analysis
16 elements max.[1]
Accurate?
Goniometer
Fixed type goniometer for each element; scanning type goniometer for Ti through U[1]
Accurate?
Collimator
2 kinds for automatic exchange; selectable from 5, 10, 15 and 20 mm dia.[1]
Accurate?
Temperature stabilizer
Available[1]
Accurate?
Heat exchanger
Distilled water recirculation system (with ion exchange resin)[1]
Accurate?
Orientation flat/notch
Adjustable[1]
Accurate?
Mapping
Optional[1]
Accurate?

Vintage & configurations

  1. 1977Production start[1]

    The Rigaku Wafer/Disk Analyzer series debuted in 1977.

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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.

  • Automatic vacuum degree controller13 Pa ± 1 Pa (APC: automatic pressure controller)[1]
  • X-ray tubeRh target, 3 kW[1]
  • X-ray generatorMaximum output: 3 kVA[1]
  • Vacuum pumpDry pump (QDP-80)[1]

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 sample stage does the Rigaku 3640 use?

The Rigaku 3640 uses an XYθ driving sample stage with a spin mechanism for center measurement.[1]

What X-ray source configuration is used in the Rigaku 3640?

The Rigaku 3640 uses an X-ray tube with a rhodium target and a three kilowatt X-ray generator.[1]

Not publicly documented

The following facts about the 3640 Wafer Disk Analyzer 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 3640 Wafer Disk Analyzer 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 3640 Wafer Disk Analyzer 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 3640 Wafer Disk Analyzer are on record.

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

  • The process node or technology generation of the 3640 Wafer Disk Analyzer is not on record.

    Answerable by: an OEM datasheet or a fab qualification report

  • No publicly documented compatible parts, consumables, or accessories for the 3640 Wafer Disk Analyzer are on record.

    Answerable by: an OEM parts catalog or a service engineer

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Sources & citations

Sources (2)Every fact above is drawn from these public sources
  1. [1]ptwsingapore.com — ptwsingapore.comptwsingapore.com
  2. [2]Equipment inventory listing
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Last updated Oct 6, 2026.

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