Skip to main content
Installation Report
DVIA-M Series
04-06-2016

Hitachi SU8010 SEM DVIA-MB1000 Installation

Installation Report
DVIA-M Series
Hitachi

1. Measurement Details

Measurement Date: April 6, 2016

Measurement Devices:

LAN-XI Data Acquisition Hardware – Brüel & Kjær 3050-B-040

Data Analysis Software – Brüel & Kjær PULSE LAB SHOP 14

Sensors – PCB Accelerometer Model: 393B05

Measurement Location: 5th Floor

Measurement Setup:

Bandwidth: 0 – 100 Hz

Lines: 400

Window: Hanning

Averaging: Fast Fourier Transform Spectrum Averaging

Amplitude Units: m/s²

Spectral Unit: RMS

2. Equipment Information

Manufacturer: HITACHI

Model: SEM SU8010

Floor Vibration Specification: VC-E

3. Vibration Isolation System Information

Model: DVIA-MB1000

SpecificationValue
Platform DimensionsCustom-made
Load Capacity500 - 1700 kg
ActuatorElectromagnetic Actuator
Maximum Actuator ForceVertical: 40N, Horizontal: 20 N
Degrees of Freedom6 degrees
Active Isolation Range0.5 - 100 Hz
Vibration Isolation at 1 Hz≥90%
Input VoltageAC100 - 240V / 50 - 60 Hz / 1A
Power ConsumptionMaximum 110W, <50 W in normal operation
Operating Temperature5 - 50 °C
Operating Humidity20 - 90%
Required Air Pressure≥ 0.5 MPa (5 bar)

4. Installation Photo

5. Results – Vibration Criterion Curves

Z-axis (Vertical)

The active vibration isolation system reduced the vertical floor vibration from VC-B to VC-E.

X-axis (Left to Right)

The active vibration isolation system reduced the X-axis floor vibration from VC-C to VC-F.

Y-axis (Front to Back)

The active vibration isolation system reduced the Y-axis floor vibration from VC-B to VC-F.

6. Results – Vibration Isolation Effects on Imaging

HV: 15.00 kV / Mag: 100,000x / Linewidth: 500 nm

HV: 30.00 kV / Mag: 100,000x / Linewidth: 500 nm

7. Reference

Generic Vibration Criteria

Criterion CurveDescriptionAmplitude
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-AAdequate for optical microscopes to 400x, microbalances, optical balances.50 (2,000)8
VC-BAppropriate for inspection and lithography equipment to 3μm line widths.25 (1,000)3
VC-CAppropriate for optical microscopes to 1000x, lithography equipment to 1μm.12.5 (500)1 - 3
VC-DSuitable for demanding equipment including electron microscopes (SEMs/TEMs).6.25 (250)0.1 - 0.3
VC-EFor the most demanding systems including E-Beam lithography at nanometer scales.3.12 (125)< 0.1
VC-FFor extremely quiet research spaces. Not recommended as design criterion.1.56 (62.5)N/A
VC-GFor extremely quiet research spaces. Not recommended as design criterion.0.78 (31.25)N/A

*Notes:*

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

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

Share this Case Study

Case Study Information

Category
Installation Report
SeriesDVIA-M Series
Date04-06-2016
Tags
Installation Report
DVIA-M Series
Hitachi