Difference between revisions of "MA6 Mask Aligner"

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|materials = [[Photoresist]]
 
|materials = [[Photoresist]]
 
|mask =4", 5", 7" mask plates
 
|mask =4", 5", 7" mask plates
|size = 4" and 6" wafers.  Pieces with staff approval
+
|size = 4" and 6" wafers
 
|chemicals = LNF approved photoresists
 
|chemicals = LNF approved photoresists
|gases =
+
|overview = [https://drive.google.com/file/d/0B3k-qgz56T_4YWJLc2t3ZUJQZ2s/view?usp=sharing System Overview ]
|overview = [[{{PAGENAME}}#System_Overview | System Overview]]
+
|sop = [https://drive.google.com/file/d/0B3k-qgz56T_4WXo4VFVnWjI4R0k/view?usp=sharing Topside Mask Alignment SOP]
|sop = [https://docs.google.com/a/lnf.umich.edu/document/d/1fqWwTY2zI1o1NFhlDWI0ZVJ0lsMnCfwpj1QXhZApKyc/preview SOP]
+
 
|processes = [[{{PAGENAME}}/Processes|Supported Processes]]
 
|maintenance = [[{{PAGENAME}}#Maintenance | Maintenance]]
 
 
}}
 
}}
 
The [[{{PAGENAME}}]] is primarily used to expose [[Photoresist|photo-definable]] materials. We allow 4” masks, 5” masks, 7” masks, transparencies, shadow masking, or just flood exposure.  
 
The [[{{PAGENAME}}]] is primarily used to expose [[Photoresist|photo-definable]] materials. We allow 4” masks, 5” masks, 7” masks, transparencies, shadow masking, or just flood exposure.  

Revision as of 13:30, 3 November 2017

MA6 Mask Aligner
50101.jpg
Equipment Details
Technology Contact Lithography
Materials Restriction Semi-Clean
Material Processed Photoresist
Mask Materials 4", 5", 7" mask plates
Sample Size 4" and 6" wafers
Chemicals Used LNF approved photoresists
Equipment Manual
Overview System Overview
Operating Procedure Topside Mask Alignment SOP


The MA6 Mask Aligner is primarily used to expose photo-definable materials. We allow 4” masks, 5” masks, 7” masks, transparencies, shadow masking, or just flood exposure.

Capabilities

  • 2 µm min feature size resolution in thin resist
  • Aspect Ratio 1:3 fairly standard
  • Substrate thickness 200 µm to 4 mm possible

System overview

Hardware Details

  • Broadband light source calibrated to 20 mJ/sec at the 405 nm peak. Total broadband dose about 30 mJ/sec
  • 4" and 6" chucks
  • 4", 5" and 7" mask holders
  • Flood exposure, soft, hard, and vacuum contact capable
  • Topside alignment (no backside or bond alignment)
  • 10 mm stage travel, 150 mm microscope objective travel with split field view camera option

Substrate requirements

  • Full 4" and 6" wafers standard
  • Mounting may be necessary if wafer has thru holes, etc. Create helpdesk ticket for assistance
  • Substrate thickness 200 µm to 4 mm possible

Material restrictions

Allowed Materials - LNF approved photoresists

Not Allowed Materials - Uncured PDMS and SU-8 (restricted w/out approval)

Supported processes

This tool is primarily used to expose photodefinable materials. The lamp output is calibrated to the 405 nm peak at 20 mJ/sec with <5% uniformity across the 4” area. The 365 peak output is about half of this and tracks very well however is not routinely calibrated. We allow 4” masks, 5” masks, 7” masks, transparencies, shadow masking, or a manually timed flood exposure.

Exposure of all LNF approved photoresists are allowed on this tool, for data on specific resist please see that resists wiki page.

Standard operating procedure

Checkout procedure

  1. Read through this page and the Standard Operating Procedure above.
  2. Create a Helpdesk Ticket requesting training.
  3. A tool engineer will schedule a time for initial training.
  4. Practice with your mentor or another authorized user until you are comfortable with tool operation.
  5. Schedule a checkout session with a tool engineer via the helpdesk ticket system. If this checkout is successful, the engineer will authorize you on the tool.