Where to buy photoresist for photolithography?

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Discussion Overview

The discussion revolves around sourcing photoresist for photolithography, with participants sharing recommendations for suppliers and addressing safety concerns related to handling these materials. The scope includes practical advice and safety considerations in the context of using photoresist in various locations.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant inquires about reliable sources for purchasing photoresist, indicating a lack of local expertise.
  • Another participant provides a link to a list of photoresist manufacturers, specifically asking if the original poster is located in the USA.
  • Safety concerns are highlighted, with participants noting that some solvents in photoresists can cause serious health issues, including cancer and birth defects.
  • A participant from the Philippines expresses gratitude for the information and acknowledges the need to consult local authorities regarding safe handling and disposal of photoresists.
  • There is a request for recommendations on the safest type of photoresist to use.

Areas of Agreement / Disagreement

Participants generally agree on the importance of safety when handling photoresists, but there is no consensus on specific recommendations for suppliers or the safest type of photoresist.

Contextual Notes

Participants mention the need for local government approval for handling and disposing of photoresist materials, indicating potential regulatory considerations that may vary by location.

flux!
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Typically, I should ask an expert in photolithography about this, but, there are barely photolithographic engineer in our department so I decided to ask experts here.

Where do you usually buy a reliable photoresist, what company in particular?
 
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flux! said:
Typically, I should ask an expert in photolithography about this, but, there are barely photolithographic engineer in our department so I decided to ask experts here.

Where do you usually buy a reliable photoresist, what company in particular?
Here's a pretty comprehensive list. Are you in the USA?

http://www.cleanroom.byu.edu/resistmanufacturers.phtml

Keep in mind that you will probably need to treat this as a hazardous material (store in an approved chemical cabinet, keep the MSDS at the cabinet, etc.). And your process needs to be approved by your local government agency to be sure you are handling the material correctly and are disposing of the waste materials properly.
 
Last edited by a moderator:
Ditto on the cautions recommended by berkemann. Some of the solvents used in photoresists are known to cause cancer and birth defects. Be careful handling this stuff!
 
berkeman said:
Here's a pretty comprehensive list. Are you in the USA?

I am from Philippines, thanks for giving me trustable companies.

I never though, the chemical would be this difficult to handle, I guess I got to consult our local implementing bodies.

phyzguy said:
Ditto on the cautions recommended by berkemann. Some of the solvents used in photoresists are known to cause cancer and birth defects. Be careful handling this stuff!

Thanks for giving me the caution, could you recommend the safest kind of photoresist?
 

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