Dell 3100 Especificações Página 70

  • Descarregar
  • Adicionar aos meus manuais
  • Imprimir
Vista de página 69
Facilities Requirements
Acoustic/Vibration Specifications
50 Dimension 3100 Manual Rev. D
3.5 Acoustic/Vibration Specifications
The following conditions must be met in order to achieve 0.5 angstrom RMS noise specifications:
Acoustic: Acoustic noise should not exceed 75dBC (Note “C” weighting).
•Vibration: Vibration of the SPM mounting surface should not exceed VC-D in any
direction, vertical or horizontal.
Figure 3.5a Vibration Criteria Plot
Velocity Level in dB re 1 micro-inch/sec
One-Third Octave Band Frequency in Hz
Workshop (ISO)
Residential Day (ISO)
Perception Threshold (ISO)
Operating Theater (ISO)
BBN Criterion A
BBN Criterion B
BBN Criterion C
BBN Criterion D
BBN Criterion E
32,000
16,000
8,000
4,000
2,000
1,000
500
250
125
100
90
80
70
60
50
16
20
25
31.5
40
50
63
80
100
125
160
4
5
6.3
8
12.5
10
Office (ISO)
BBN Criterion A - Probe Test Equipment. 100X Microscopes
BBN Criterion B - 500X Microscopes. Aligners, Steppers to 5µm Geometries
BBN Criterion C - 1000X Microscopes. Aligners, Steppers to 1.5µm Geometries
BBN Criterion D - Steppers, E-Beams to 0.3µm Geometries, CD Inspection Equipment.
Most SEMs to 50,000X
BBN Criterion E - Anticipated Adequate for Future Fabrication and Test Equipment
for Low Submicron Geometries
1959-940-A
40
Vista de página 69
1 2 ... 65 66 67 68 69 70 71 72 73 74 75 ... 375 376

Comentários a estes Manuais

Sem comentários