Tsinghua McGovern ZEISS MultiSEM FIB-SEM DVIA-MB1000 (250810R1-1) Installation Report

DVIA-M Series

Installation Report

ZEISS

MultiSEM

FIB-SEM

Tsinghua McGovern

DVIA-MB1000

Overview

The DVIA-MB1000 active vibration isolation platform is appropriately installed and functioning as intended.

Model: DVIA-MB1000

Serial Number: 250810R1-1

Chaewon Lee DAEIL SYSTEMS

October 29, 2025

October 29, 2025

Tsinghua McGovern

1st

Beijing, China

Manufacturer: ZEISS

Equipment: FIB-SEM

Model: MultiSEM

The equipment is installed/Turned off

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	Appropriate 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