IR Aligner (SUSS MJB-3 IR)

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IR Aligner (SUSS MJB-3 IR)
Tool Type Lithography
Location Bay 6
Supervisor Lee Sawyer
Supervisor Phone (805) 893-2123
Supervisor E-Mail
Description Mask Aligner - MJB 3 UV400 IR
Manufacturer Karl Suss America
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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.

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