Installation Report

DVIA-M Series

01-17-2025

YIMO Hefei University of Technology Hitachi SU8600 FE-SEM DVIA-M1000 (240308R2) Installation Report

DVIA-M Series

Installation Report

YIMO

Hefei University of Technology

Hitachi

FE-SEM

SU8600

DVIA-M1000

240308R2

Overview

The DVIA-M1000 active vibration isolation platform is appropriately installed and functioning as intended.

Vibration Isolation System Information

Model: DVIA-M1000

Serial Number: 240308R2

Engineer

Chaewon Lee, Jonghwa Suh from DAEIL SYSTEMS

Tuning Date

January 16, 2025

Report written date

January 17, 2025

End User

Hefei University of Technology

Number of Tuning Trial

3rd

Location

Xuancheng, Anhui

Equipment

Manufacturer: Hitachi

Equipment: FE-SEM

Model: SU8600

Equipment Condition

The equipment is installed

Tuning Request

Data and Image

Vertical Transmissibility

Left to Right Transmissibility

Front to Back Transmissibility

Equipment picture

Reference

Generic Vibration Criteria

Criterion Curve	Description	Amplitude μm/s (µin/s)	Detail Size μm
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.	200 (8,000)	75
Operating Theatre (ISO)	Vibration not perceptible. Suitable for surgical suites, microscopes to 100x.	100 (4,000)	25
VC-A	Adequate for optical microscopes to 400x, microbalances, optical balances.	50 (2,000)	8
VC-B	Appropriate for inspection and lithography equipment to 3μm line widths.	25 (1,000)	3
VC-C	Adequate for optical microscopes to 1000x, lithography equipment to 1μm.	12.5 (500)	1 - 3
VC-D	Suitable for demanding equipment including electron microscopes (SEMs/TEMs).	6.25 (250)	0.1 - 0.3
VC-E	For the most demanding systems including E-Beam lithography at nanometer scales.	3.12 (125)	< 0.1
VC-F	For extremely quiet research spaces. Not recommended as design criterion.	1.56 (62.5)	N/A
VC-G	For extremely quiet research spaces. Not recommended as design criterion.	0.78 (31.25)	N/A

Notes:

- As measured in one-third octave bands over 8-80 Hz (VC-A/B) or 1-80 Hz (VC-C through VC-G).

- Detail size refers to width in microelectronics fabrication or particle size in medical research.

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Case Study Information

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