Rigaku
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The Rigaku MiniFlex is an X-ray diffraction (XRD) analytical measuring instrument produced by Rigaku. The Rigaku MiniFlex was the first commercial benchtop (tabletop) X-ray diffraction instrument. The Rigaku MiniFlex 600 is a compact benchtop x-ray diffraction system with capabilities including identification of crystalline phases, crystallinity, crystallite size, and crystal structure determination.[1][2]

The Rigaku MiniFlex is an X-ray diffraction analytical measuring instrument. The Rigaku MiniFlex is a benchtop X-ray diffraction instrument. The Miniflex line was introduced in 1973. The current instrument is the fourth in the series.[1]
The original MiniFlex and its successor employed a horizontal goniometer with data output from an internal strip chart recorder. The MiniFlex+ employed a vertical goniometer. The MiniFlex II offered a monochromatic X-ray source and a 1D silicon strip detector. The later MiniFlex generation introduced in 2017 incorporated a 2D hybrid pixel array detector and an 8-position automatic sample changer.[1]
The MiniFlex 600 is equipped with an automated 6 position sample changer with sample spinning capability. The MiniFlex 600 supports identification of crystalline phases, crystallinity, crystallite size, and crystal structure determination.[2]
X-ray diffraction sits in the characterization and failure-analysis portion of a process flow rather than in the main patterning or deposition path. X-ray diffraction is typically used after material formation steps such as deposition, growth, annealing, reaction, or powder preparation. X-ray diffraction results can guide subsequent process tuning, materials selection, or confirmatory analysis by complementary metrology methods.
The MiniFlex 600 can be used for identification of crystalline phases, crystallinity, crystallite size, and crystal structure determination.[2]
The original Miniflex was introduced in 1973.
First commercial benchtop X-ray diffraction instrument introduced
Second generation MiniFlex introduced
Third generation MiniFlex+ with 450W power and computer control
Fourth generation with monochromatic X-ray source and 1D silicon strip detector
Fifth generation with 600W tube power and PDXL software
Sixth generation with 2D HPAD detector and 8-position sample changer
6th generation MiniFlex was introduced in 2017.
| Designation | Generation | Vintage | Changes | Source |
|---|---|---|---|---|
| Miniflex | original | 1973 | — | en.wikipedia.org[1] |
| MiniFlex II | — | 2006 | Introduced a monochromatic X-ray source and a 1D silicon strip detector. | en.wikipedia.org[1] |
| MiniFlex600 | 5th generation | 2012 | Built upon the line with 600 W tube power and PDXL powder diffraction software. | en.wikipedia.org[1] |
| Original Miniflex | 1st generation | 1973 | About one-tenth the size and dramatically less expensive than conventional X-ray diffraction equipment of the period; employed a horizontal goniometer with data output provided by an internal strip chart recorder | en.wikipedia.org[1] |
| 2nd Generation Miniflex | 2nd generation | 1976 | Employed a horizontal goniometer with data output provided by an internal strip chart recorder | en.wikipedia.org[1] |
| 6th generation MiniFlex | 6th generation | 2017 | Incorporated a 2D hybrid pixel array detector (HPAD) and an 8-position automatic sample changer; updated SmartLab Studio II software with fundamental parameter method (FP), phase identification using the Crystallography Open Database (COD), and a wizard for ab initio crystal structure analysis | en.wikipedia.org[1] |
| MiniFlex (original) | 1st generation | 1973 | First commercial benchtop X-ray diffraction instrument; horizontal goniometer with strip chart recorder | en.wikipedia.org[1] |
| MiniFlex (2nd generation) | 2nd generation | 1976 | Horizontal goniometer with strip chart recorder | en.wikipedia.org[1] |
| MiniFlex (6th generation) | 6th generation | 2017 | 2D hybrid pixel array detector (HPAD); 8-position automatic sample changer; SmartLab Studio II software with fundamental parameter method | en.wikipedia.org[1] |
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The Rigaku MiniFlex is an X-ray diffraction analytical measuring instrument.[1]
The Rigaku MiniFlex is a benchtop X-ray diffraction instrument.[1]
The MiniFlex 600 is equipped with an automated 6 position sample changer with sample spinning capability.[2]
The following facts about the MiniFlex are absent from this record as of this revision. First-hand knowledge or a citation closes a gap; every submission is reviewed before publication.
The control-system platform and OS era of the MiniFlex 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 MiniFlex are on record.
Answerable by: a field service engineer, process engineer, or maintenance technician
The process node or technology generation of the MiniFlex is not on record.
Answerable by: an OEM datasheet or a fab qualification report
No publicly documented compatible parts, consumables, or accessories for the MiniFlex are on record.
Answerable by: an OEM parts catalog or a service engineer
No publicly hosted manuals, SOPs, or datasheets for the MiniFlex are on record.
Answerable by: university cleanroom staff or an OEM application specialist
No research found yet — worked with this tool? Share what you know.
Last updated Oct 15, 2026.
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