[labnetwork] HMDS lifetime in YES oven

[Martin, Michael]

To Bill's point (from Florida), same here. Our HMDS in the YES oven is probably 10 years old and qualitatively still works.  It makes our substrates hydrophobic and resist adhesion is good though we are not using a goniometer to verify the contact angle.

-Michael



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From: labnetwork <labnetwork-bounces at mtl.mit.edu> on behalf of Zhichao Wang <zhichaow at udel.edu>
Sent: Monday, April 8, 2024 5:40 PM
To: labnetwork at mtl.mit.edu <labnetwork at mtl.mit.edu>
Subject: [labnetwork] HMDS lifetime in YES oven


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Dear Lab Network,

I was wondering how long the lifetime is for the HMDS in the YES oven. On the note from the YES's website, it says " If the HMDS is more than a year old, it should probably be replaced". I would assume the "year" here starts from the HMDS manufactured date, which is the shelf life for a brand new bottle of HMDS. Do you guys have experience on using the HMDS for extended time (like 6+ months) after the expiration date? Please let me know your thoughts and suggestions. Many thanks!


Best,
Chao



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Zhichao "Chao" Wang, Ph.D.
Lithography Engineer
UDNF
University of Delaware
Pronouns: He/Him/His
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