Here's a pretty comprehensive list. Are you in the USA?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?
berkeman said:Here's a pretty comprehensive list. Are you in the USA?
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!
Photoresist for photolithography can be purchased at various scientific supply companies, such as Sigma-Aldrich, Thermo Fisher Scientific, or EMD Millipore. It can also be purchased online from websites like Amazon or directly from the manufacturer's website.
The type of photoresist you should use for photolithography depends on the specific application and method you will be using. Common types include positive photoresist, negative photoresist, and negative-tone photoresist. It is important to carefully consider the specific requirements of your project before selecting a type of photoresist.
The amount of photoresist needed for a photolithography project depends on the size of the substrate and the desired thickness of the photoresist layer. As a general rule, it is recommended to have at least 2-3 times the volume of the substrate for spin coating. It is also important to factor in any potential wastage during the coating process.
In most cases, photoresist cannot be reused for multiple photolithography processes. Once the photoresist has been exposed and developed, it cannot be used again. However, if the photoresist is not fully used during a single process, it can be stored properly and reused for future projects.
Yes, there are certain safety precautions that should be taken when working with photoresist. It is important to wear appropriate personal protective equipment, such as gloves, safety glasses, and a lab coat. Photoresist should also be handled in a well-ventilated area to avoid inhaling any fumes. Additionally, it is important to follow the manufacturer's instructions for proper disposal of used photoresist.