Subject: Re: ZEP-520A
From: "James W. Conway" <>
Date: Wed, 09 Dec 2009 13:10:45 -0800

A new bottle of fresh batch of ZEP-520 A (formulated with Anisole) has 
been stocked into the SNF Cleanroom's refrigerator.

User are requested to allow 30 minutes for the bottle to warm to room 
temperature before opening it and to NEVER return decanted solutions 
back to the source bottle.  As this material is very expensive please be 
frugal with your usage.  Once applied the material it is very stable and 
should last well for years as a thin film on your wafers as long as they 
are not exposed to a condensing environment or temperatures above 250 
degrees C.

ALWAYS be conscientious and promptly return the bottle to the 
refrigerator after decanting your solution.  The material needs to be 
stored cool or it will quickly hydrolyze.

Thank you,

James Conway

Donkoun Lee wrote:
> Hi.
> First of all, I really appreciate for your kind consideration on Tuesday
> session.
> When I used the ZEP-520A yesterday, I knew that there is almost no ZEP-520A.
> Do you have extra ZEP-520A bottle?
> Thank you.
> Kind Regards,
> Donkoun Lee