Nanolithography.  
		The Electron Beam Lithography Facility at the Institute for Electronics and Nanotechnology
		of the Georgia Institute of Technology.
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HSQ Thickness vs. Spin Speed Curves

    6% XR-1541 HSQ solution

    1000 rpm - 1900 Ang
    2000 rpm - 1337 Ang
    3000 rpm - 1108 Ang
    4000 rpm - 972 Ang
    5000 rpm - 883 Ang

    Fit line: y = 50710x^-0.477

2% XR-1541 HSQ solution

    velocity------acceleration-------time-------thickness
    2000 rpm----1000 rpm/s-------60s-------450 A
    3000 rpm----1500 rpm/s-------60s-------390 A
    4000 rpm----2000 rpm/s-------60s-------353 A
    5000 rpm----3000 rpm/s-------60s-------323 A
    5000 rpm----5000 rpm/s-------90s-------287 A

    2% HSQ Fit line: y = 2916.9x^-0.267

1% solution on 1" pieces:

    velocity------acceleration-------time-------thickness
    1000 rpm----500 rpm/s--------60s-------278 A
    2000 rpm----1000 rpm/s-------60s-------196 A
    3000 rpm----1500 rpm/s-------60s-------178 A
    4000 rpm----2000 rpm/s-------60s-------151 A
    5000 rpm----2500 rpm/s-------60s-------139 A

    1% XR-1541 HSQ Fit line: y = 5109.5x^-0.424

1% XR-1541 HSQ solution on 4" wafer:

    velocity------acceleration-------time-------thickness
    3000 rpm----1500 rpm/s-------60s-------165 A
    5000 rpm----2500 rpm/s-------60s-------116 A

Electron Beam Lithography Facility
Institute for Electronics and Nanotechnology
Georgia Institute of Technology