Difference between revisions of "IR Aligner (SUSS MJB-3 IR)"

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= About =
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==About==
This is a high-performance mask aligner used for contact exposure processes. It is a versatile, user-friendly compact unit that has a foot print of 600 x 800 mm². The resolution (depending on contact mode, optics and exposure wavelength and "operator technique") is far into the submicron region. Our left unit is configured for the near-UV window (365 and 405 nm) and both left and right units have the "vacuum contact" option extending resolution to ~0.5 microns. Higher resolution optic systems that can be supplied by Suss are given below. The standard soft and hard contact modes of mechanical and pneumatic pressure respectively, only give resolution to 1-2 microns. Exposures can be done on substrates from small "piece parts" of less than 1 cm square to substrates of 3 inch diameter or square. Special black chucks may be used for transparent materials. For backside alignment through opaque our IR aligner can be used and is described below. Masks up to 4 inches in size can be used although patterns should be well away from the maskplate edges due to the fact such plates can only be shifted ~ x mm and substrate chuck +/- 3 mm.
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This is a high-performance contact mask aligner with backside alignment capability for opaque materials using IR. It is a versatile, user-friendly compact unit that has a foot print of 600 x 800 mm². The resolution (depending on contact mode, optics and exposure wavelength and "operator technique") is down to 1 micron (hard contact). The aligner is configured for the near-UV window (365 and 405 nm). Exposures can be done on substrates from small "piece parts" of less than 1 cm square to substrates of 3 inch diameter or square. Masks up to 4 inches in size can be used although patterns should be well away from the mask plate edges due to the fact such plates can only be shifted a limited distance in the  x and y.
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==Detailed Specifications==
  
=Detailed Specifications=
 
 
*Wafer size: 3" max. for vacuum mode; 4” for soft contact (3” x 3” exposure area)
 
*Wafer size: 3" max. for vacuum mode; 4” for soft contact (3” x 3” exposure area)
 
*Substrate size: 3" x 3" max.
 
*Substrate size: 3" x 3" max.
 
*Wafer / substrate thickness: 0-4.5 mm
 
*Wafer / substrate thickness: 0-4.5 mm
 
*Exposure optics:
 
*Exposure optics:
**Left unit: 280-450 nm/200 W mercury lamp
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**280-450 nm/200 W mercury lamp (can filter to 350 nm)
**Right unit: 350-450 nm/200 W mercury lamp
 
**IR unit: 280-450 nm/200 W mercury lamp
 
*Additional manufacturer options (none installed on our systems):
 
**DUV (polychromatic): 240-260 nm/350 W Cd-Xe lamp; 0.2 micron resolution (PMMA)
 
**DUV (monochromatic): 248 nm/KrF excimer laser; 0.3 micron resolution (PMMA)
 
**193 nm/ArF excimer laser; 0.2 micron resolution (PMMA)
 
 
*Uniformity:
 
*Uniformity:
 
**±3% over 2" diameter
 
**±3% over 2" diameter
 
**±5% over 3" diameter
 
**±5% over 3" diameter
  
=Special Notes / Additional Comments=
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==Special Notes / Additional Comments==
*All units have 200 W mercury lamps
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*Infrared Transmission Alignment System
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*200 W mercury lamp
*All models can be equipped for back side alignment using infrared light; this is used when a mask needs to be aligned to features on the substrate backside but exposed to light on the front or resist side
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*Top side alignment (visible) can be performed on this aligner as well with a quick tooling change
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*Infrared Transmission Alignment System:
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**Motor positioned IR light source under chuck
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**Special glass chucks transparent to IR but opaque to UV and visible light
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**In-line video camera/monitor for substrate backside viewing and alignment to front-side
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*This aligner does not support vacuum contact mode
 
*For processes using this tool please go to the contact lithography process page
 
*For processes using this tool please go to the contact lithography process page
*This includes:
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*Modified alignment stage
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==Documentation==
*Motor positioned IR light source under chuck
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*Special glass chuck transparent to IR but opaque to UV and visible light
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*[https://wiki.nanotech.ucsb.edu/wiki/images/d/de/MJB_3_SOP.pdf MJB 3 Standard Operating Procedure]
*In-line video camera/monitor for substrate backside viewing and alignment to front-side
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*[https://wiki.nanotech.ucsb.edu/w/images/1/11/MJB_3_IR_Alignment_Mode_Conversion.pdf MJB 3 IR Alignment Mode Conversion Procedure]
*(Note: The vacuum contact mode is not allowed in the ITA System)
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*[https://wiki.nanotech.ucsb.edu/w/images/7/70/MJB_3_IR_Camera_SOP_Rev_B.pdf MJB 3 IR Camera Operating Procedure]

Latest revision as of 10:56, 7 August 2020

IR Aligner (SUSS MJB-3 IR)
SussAlignerIR.jpg
Tool Type Lithography
Location Bay 6
Supervisor Lee Sawyer
Supervisor Phone (805) 893-2123
Supervisor E-Mail lee_sawyer@ucsb.edu
Description Mask Aligner - MJB 3 UV400 IR
Manufacturer Karl Suss America
Sign up for this tool


About

This is a high-performance contact mask aligner with backside alignment capability for opaque materials using IR. It is a versatile, user-friendly compact unit that has a foot print of 600 x 800 mm². The resolution (depending on contact mode, optics and exposure wavelength and "operator technique") is down to 1 micron (hard contact). The aligner is configured for the near-UV window (365 and 405 nm). Exposures can be done on substrates from small "piece parts" of less than 1 cm square to substrates of 3 inch diameter or square. Masks up to 4 inches in size can be used although patterns should be well away from the mask plate edges due to the fact such plates can only be shifted a limited distance in the x and y.

Detailed Specifications

  • Wafer size: 3" max. for vacuum mode; 4” for soft contact (3” x 3” exposure area)
  • Substrate size: 3" x 3" max.
  • Wafer / substrate thickness: 0-4.5 mm
  • Exposure optics:
    • 280-450 nm/200 W mercury lamp (can filter to 350 nm)
  • Uniformity:
    • ±3% over 2" diameter
    • ±5% over 3" diameter

Special Notes / Additional Comments

  • 200 W mercury lamp
  • Top side alignment (visible) can be performed on this aligner as well with a quick tooling change
  • Infrared Transmission Alignment System:
    • Motor positioned IR light source under chuck
    • Special glass chucks transparent to IR but opaque to UV and visible light
    • In-line video camera/monitor for substrate backside viewing and alignment to front-side
  • This aligner does not support vacuum contact mode
  • For processes using this tool please go to the contact lithography process page

Documentation