Though the shelf life is 1 year, these should perform 7u for much longer
time if kept refrigerated and warmed before opening to avoid condensation.
You can split the gallon into small opaque clean bottles and keed them in
the fridge.
Shay


-----Original Message-----
From: [email protected] [mailto:[email protected]]
On Behalf Of CYRUS GRIMES
Sent: Friday, September 16, 2005 5:20 PM
To: [email protected]
Subject: [mems-talk] photoresist

I'm looking for alternative to arch chemical Photoresists.

we use HNR and HPR resists

our volume is low enough that currently we are wasting up to 80% of the
because shelf life is up.
Arch/fuijfilm sells their products in 4 liter batches, and make it 4 times a
year.

The performance of the product is good so I want a product that performs
similarly

our feature size is min~7um and we need excellent resolution. and liter or
500ml volumes