Model 2244i MVS, Sn 1262
 
  info@stepequipment.com
 

The Ultratech 2244i was specifically designed as a cost effective approach to complement high NA reduction steppers in a mix-and-match environment, especially for high volume
DRAM and ASIC manufacturing. This system features an ultra-large image field of 22 x 44mm with a 0.32 numerical aperture lens with an illumination bandwidth of 20 nanometers (355 to 375nm). As a result, this system provides 0.8 micron manufacturing capability. These features provide improved critical dimension (CD) interference effects and superior depth-of-focus for the 2244i.

In terms of manufacturing performance, the large field size coupled with an extremely fast and accurate linear motor wafer stage, results in the most productive step-and-repeat lithography tool in the industry at eighty 200mm wafers per hour.

When considering these benefits for cost-of-ownership, the 2244i provides an efficient solution for cost effective mix-and-match lithography with reduction steppers.

 
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Stepper SN 1262 , manufactured April, 1997
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Lens SN 221185, manufactured October, 1996
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0.8µm resolution
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Machine vision system (MVS)
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Digital alignment signal processing
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Multiple fields per reticle
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Environmental chamber
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Reticle library
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22mm x 44mm field size
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Robotic wafer and reticle handling
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I line exposure wavelength ( 355-375nm )
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3" to 8" substrate handling, round or square
 
 
Configuration
Optics
Wafer Size
3", 4", 5", 6", or 8"
Resolution
0.75 um
Loader type
GenRobot robotic controller
Max square
 27mm x 27mm
Computer
68030 VME bus controller
Max aspect rect
 44mm x 22mm
Lamp power supply
750 watt idle, 1000 watt pulse
Max area rect
 44mm x 22mm
Crossmasks
0.4 HAMS, 140um
Adjustable NA
 Yes
Voice coil isolated platen
 IDE
Exposure wavelength
 I Line 355-375nm

Wafer prealigner

Genmark prealigner
Uniformity
1.78%
Reticle stage type
6" x 6" x 0.25"
Wafer plane intensity
>700 mw/cm2
Linear XY stage
Monolithic structure    
Machine vision
Yes, Installed    
Reticle cooler
Yes,  Installed
Software
Reticle barcode reader
Yes, installed
Software rev
 3.2.14 Rev 2
Reticle cassette library
12 slot storage
Focus gage
 
Chuck
3", 4", 5", 6", 8"
Air gage
 
 
 
 
       
 
Pictures
 
( click on any picture below for larger version )