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Installation Report
10-20-2026

ZEISS GeminiSEM 460 DVIA-ML1000 Installation Report

DVIA-M Series
Installation Report
YOUSHIZE
Wuhan University of Science and Technology
ZEISS
FE-SEM
GeminiSEM 460
DVIA-ML1000
260729R7
Wuhan

Overview

Following the installation of DVIA-ML1000 at Wuhan, tuning and vibration measurement were performed.

Vibration measurement was conducted with the equipment in the Idle state.

Data is represented in Autospectrum and reference material on the vibration level is provided.

Vibration Isolation System Information

Model: DVIA-ML1000

Serial Number: 260729R7

Engineer

Taehun KIM · DAEIL SYSTEMS

Tuning Date

2026.10.20

End User

Wuhan University of Science and Technology

Number of Tuning Trial

1st

Site

Wuhan

Equipment

Manufacturer: ZEISS

Equipment: FE-SEM

Model: GeminiSEM 460

Vibration Specification

Horizontal

Frequency [Hz]Allowable [µm/s RMS]
1 ~ 105
10 ~ 6010
60 ~14

Vertical

Frequency [Hz]Allowable [µm/s RMS]
1 ~ 104
10 ~ 6014
60 ~20

Equipment Condition

Idle

Conclusion

Following installation and tuning of the DVIA-ML1000 (S/N 260729R7) at Wuhan University of Science and Technology, vibration was measured on the floor and on the DVIA-ML1000 with the ZEISS GeminiSEM460 in the Idle state.

The vibration measured on the DVIA-ML1000 meets the vibration specification (Section 9) in all three axes (Vertical, Left to Right, Front to Back). Measurement graphs for each axis are provided in Section 14.

Measurement Summary

Measurement PointVibration SpecificationsAxisResult
FloorDVIA-ML1000
1. Floor
2. DVIA-ML1000
See Section 9Vertical✓ PASS✓ PASS
Left to Right✓ PASS✓ PASS
Front to Back✓ PASS✓ PASS

Measurement Data Obtained via UI Program

Vertical

Vertical — Autospectrum

Left to Right

Left to Right — Autospectrum

Front to Back

Front to Back — Autospectrum

Installation Photo

Equipment

Reference

The table below classifies vibration levels based on IEST-RP-CC012.2.

Criterion CurveDescriptionAmplitude¹μm/s
(μin/s)
Detail Size²μm
Workshop (ISO)Distinctly perceptible vibration. Appropriate to workshops and non-sensitive areas.800 (32,000)N/A
Office (ISO)Perceptible vibration. Appropriate to offices and non-sensitive areas.400 (16,000)N/A
Residential Area (ISO)Barely perceptible vibration. Appropriate to sleep areas in most instances. Usually adequate for computer equipment, hospital recovery rooms, semiconductor probe test equipment, and microscopes less than 40x.200 (8,000)75
Operating Theatre (ISO)Vibration not perceptible. Suitable in most instances for surgical suites, microscopes to 100x and for other equipment of low sensitivity.100 (4,000)25
VC-AAdequate in most instances for optical microscopes to 400x, microbalances, optical balances, proximity and projection aligners, etc.50 (2,000)8
VC-BAppropriate for inspection and lithography equipment (including steppers) to 3μm line widths.25 (1,000)3
VC-CAppropriate standard for optical microscopes to 1000x, lithography and inspection equipment (including moderately sensitive electron microscopes) to 1μm detail size. TFT-LCD stepper/scanner processes.12.5 (500)1-3
VC-DSuitable in most instances for demanding equipment, including many electron microscopes (SEMs and TEMs) and E-Beam systems.6.25 (250)0.1-0.3
VC-EA challenging criterion to achieve. Assumed to be adequate for the most demanding of sensitive systems including long path, laser-based, small target systems, E-Beam lithography systems working at nanometer scales, and other systems requiring extraordinary dynamic stability.3.12 (125)<0.1
VC-FAppropriate for extremely quiet research spaces; generally difficult to achieve in most instances, especially cleanrooms. Not recommended for use as a design criterion, only for evaluation.1.56 (62.5)N/A
VC-GAppropriate for extremely quiet research spaces; generally difficult to achieve in most instances, especially cleanrooms. Not recommended for use as a design criterion, only for evaluation.0.78 (31.3)N/A

¹ As measured in one-third octave bands of frequency over the frequency 8 to 80 Hz (VC-A and VC-B) or 1 to 80 Hz (VC-C through VC-G).

² The detail size refers to the width in the case of microelectronics fabrication, the particle (cell) size in the case of medical and pharmaceutical research, etc. It is not relevant to imaging associated with probe technologies, AFMs, and nanotechnology.

The information given in this table is for guidance only. In most instances, it is recommended that the advice of someone knowledgeable about applications and vibration requirements of the equipment and processes be sought.

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Case Study Information

Category
Installation Report
Date10-20-2026
Tags
DVIA-M Series
Installation Report
YOUSHIZE
Wuhan University of Science and Technology
ZEISS
FE-SEM
GeminiSEM 460
DVIA-ML1000
260729R7
Wuhan