August 22, 2025 UMD Home NanoCenter AIM Lab
Back to Equipment List MA-4 Suss Mask Aligner
Description The Karl Suss MA-4 Mask Aligner is used with substrates up to 4" (100mm) in diameter. It also works for smaller samples. It is a contact/proximity aligner and can be set to utilize either 365 nm or 405 nm light. It is used with a variety of both positive and negative photoresists. Recipes for our standard photoresist processing are attached to the back of the operating instructions below. This system also offers real-time infrared through-wafer backside alignment.
Location FabLab | Photo Tunnel
Manufacturer Karl Suss MA-4
Staff Contact MarkMark Lecates
mlecates@umd.edu
301-405-5197
Rates
Large Commercial
$242/hr
Small Commercial / MTECH
$166/hr
External Non-profit / University
$126/hr
UMD
$81/hr
No Charge
$0/hr
Reservations No upcoming reservations at this time.
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External Materials

If you plan to bring external materials into the lab, please notify the FabLab staff to ensure proper safety protocols and any equipment arrangements can be made ahead of your reservation. Please submit an External Materials Request form for each material you will bring.

Logs
Sun, Jul 27, 2025
11:45 am - 12:15 pm
Ryan Purcell
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Fri, Jul 25, 2025
11:30 am - 12:00 pm
Mitchell Gross
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fri
Tue, Jul 15, 2025
11:00 am - 12:00 pm
Steven Hong
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Tue, Jul 15, 2025
9:30 am - 10:00 am
Mark Lecates
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Deleted by: Mark Lecates

Wed, Jul 09, 2025
11:00 am - 11:30 am
Steven Hong
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Records to show:
SOPs
MA- 4 Operating Instructions.pdf (21.04 MB)
index.php (38 B)
Manuals

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Recipes

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