Subject: Re: Espacer 300Z in the SNF refrigerator?
From: "James W. Conway" <>
Date: Wed, 07 Apr 2010 10:24:33 -0800

Thank you Edward!

For Everyone:  Please use up this supply before opening up the new ESPACER 300Z bottle which I just brought into the lab yesterday.
All Users are also encouraged to please be very frugal in your usage so as to not waste this expensive engineering material. In a normal dispense I use just 15 drops from a syringe or pipette to cover a 100 mm wafer.  1500 to 2000 rpm and no bake is required. (But you can bake between 90 and 200 C for 1 -2 min on hotplate or 30 min in oven if you desire...)

I came across a really nice web page about Charge compensation coatings and handling ESPACER 300Z from the Georgia Institute of Technology Nanolithography web site today at:

Here are the ESPACER 300Z technical specifications at:

The material must be kept at 5 C. or below and you DO NOT have to warm this material to room temperature before opening the bottle as it is a water based formulation.

Thank you for your support!

James Conway

Edward Barnard wrote:
Hi James

Other users are welcome to use this bottle. This small bottle is from a larger bottle from another lab (Melosh) that I brought in when the SNF stock was gone. I am sure that the bottle is older than 90 days, but has worked fine for me in the past few weeks


Edward Barnard
Dept. of Mat. Sci. and Eng.
Stanford University
(650) 796-9301

On Apr 6, 2010, at 11:52 AM, James W. Conway wrote:

Hello Ed,

I just did some inventory in the chemical stored and noticed your bottle of ESPACER 300Z in the refrigerator, but did not see batch information or a expiration date on the supply bottle.  The shelf life of this material is roughly 90 days, so it may already be expired.

Can other Users working in the Ebeam Lab use this material up before diving into the new bottle of Espacer 300Z that was just received in the SNF Lab?


All the Best,