Dynamic Wafer Stage

EZ-GS0760 | Key Features

  • X/Y Stage with Focus Axis (Z)
  • Impulse Decoupled X- & Y-Axis
  • High-Precision Positioning < ± 100 nm
  • Position Stability < ± 5 nm
  • Repeatability < ± 40 nm @ 3 σ
  • Y-Axis Acceleration up to 8 g
  • Integrated XY SIOS Differential Laser Interferometer
  • Quick-swap Lift-Pin Mechanism

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Product description

The EZ-GS0760 wafer stage has been developed for high-dynamic processes, such as laser fuse cutting. It offers excellent repeatability, optimal accuracy, and exceptional dynamic performance.

Built-in features:

  • Mechanical impulse decoupling in both the X- and Y-axes for enhanced dynamic and positional stability.
  • The unique design with a common reaction mass for both axes keeps reaction forces independent of the measuring frame and minimizes mass.
  • A high-resolution SIOS differential laser interferometer ensures virtually Abbe-error-free performance, minimizing measurement errors at the point of interest, even at maximum dynamics.
  • Outstanding Y-axis acceleration up to 8 g; water cooling allows travel profiles with up to 2 g continuous acceleration.
  • The Y-axis natural frequency, including wafer chuck, exceeds 500 Hz.
  • The compact height of just 87 mm provides a low center of gravity and enables high dynamics.
  • Large top plate (granite) to accommodate customer applications.

Applications: Fuse cutting, high-precision positioning, scanning, and on-the-fly laser processes

Specifications

Type
Unit
Value
Positioning Range X/Y
mm
450 x 400
Stroke Z
mm
8
Max. Payload X/Y (for dynamic applications)
kg
10
Max. Payload Z (for dynamic applications)
kg
0.5
Accuracy X/Y (3σ)
nm
< ± 150
Accuracy Z
nm
< ± 60
Repeatability X/Y (3σ, bidirectional)
nm
< ± 70
Repeatability Z (bidirectional)
nm
< ± 20
Horizontal Straightness X/Y
μm
< 2
Vertical Straightness X/Y
μm
< 2
Pitch X/Y
μrad
< 10
Roll, Yaw X/Y
μrad
< 5
Pitch, Yaw Z
μrad
< 3
Max. Speed (X/Y) with 10 kg payload
mm/s
X = 1,600 / Y = 600
Max. Acceleration unloaded (X/Y)
mm/s2
X = 2 / Y = 80
Mechanical Data
Unit
Value
Both Axes (X/Y)
active impulse decoupled
Dimension (w x l x h)
mm
1,250 x 1,395 x 1,245
Reaction Mass
kg
1,245
Total Mass
t
3
Encoder
Value
Type
incremental
Signal
1 Vpp, 4 μm signal periode
Interferometer
Unit
Value
Type
SP 5000 DI/F
Resolution
5 pm
Wave Length / Class
nm
632.8 / 2M
Drive
Unit
Value
Type X/Y (2 drives for X-axis)
3-phase, synchronous, ironless
Intermediate Circuit Voltage
VDC
up to 600 / 330
Constant Force X / Y
N
383 / 220
Peak Force X / Y
N
2,122 / 867
Interfaces and Environment
Unit
Value
Supply Pressure
bar
6
Vacuum Pressure
bar
-0.65
Air Consumption
Sl/min
<150
Vacuum Consumption
Sl/min
<60
Limit Switch
normally closed
Media at workpiece level
2x vacuum hose Ø6, 3x cable Ø6
Clean Room Suitability
applicable
Drive Control
Value
High end
Triamec TSD series

1) vermessen mit ACS Verstärker
2) alternativ absoluter Encoder möglich
3) ohne Faltenbalg, abhängig von Detailausführung

EZ-GS0760-DWS-Blueprint-v001

Control

We offer the EZ-GS0760 stage with the following drive controller:

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