From mbell at snf.stanford.edu  Thu Feb  1 14:06:29 2001
From: mbell at snf.stanford.edu (Mike Bell)
Date: Thu, 01 Feb 2001 14:06:29 -0800
Subject: Scheduled Coral downtime Friday 6 AM - 7 AM
Message-ID: <3A79DDE5.D1A01806@snf.stanford.edu>

Members,

The Coral system will be down for minor reconfiguration purposes between
6 AM and 7 AM tomorrow, Friday, February 2nd.

Sorry for any inconvenience this causes.

Mike Bell
SNF Staff
725-9503


From mahnaz at snf.stanford.edu  Thu Feb  1 16:41:12 2001
From: mahnaz at snf.stanford.edu (Mahnaz Mansourpour)
Date: Thu, 01 Feb 2001 16:41:12 -0800
Subject: [Fwd: Resist presentation]
Message-ID: <3A7A0228.CE9421B2@snf.stanford.edu>

Kind reminder about the talk tomorrow.

See you there
mahnaz
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From FYaghmaie at Shipley.com  Thu Feb  1 17:20:15 2001
From: FYaghmaie at Shipley.com (FYaghmaie at Shipley.com)
Date: Thu, 1 Feb 2001 20:20:15 -0500
Subject: [Fwd: Resist presentation]
Message-ID: <OFB358355C.17B89EFC-ON852569E7.00074F63@shipley.com>


Of corse, will be there at 1:40
Thanks


                                                                                             
                    Mahnaz                                                                   
                    Mansourpour            To:     Lab <labmembers at snf.stanford.edu>, frank  
                    <mahnaz at snf.sta        yaghmaie <fyaghmaie at shipley.com>                  
                    nford.edu>             cc:                                               
                                           Subject:     [Fwd: Resist presentation]           
                    02/01/01 07:41                                                           
                    PM                                                                       
                                                                                             
                                                                                             




Kind reminder about the talk tomorrow.

See you there
mahnaz

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To: Lab <labmembers at snf.stanford.edu>, svgcoat at snf.stanford.edu,
frank yaghmaie <fyaghmaie at shipley.com>, headway at snf.stanford.edu
Subject: Resist presentation
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------------635D081583CF2BC9F30A8CC5"

Hello all,

I am very pleased to announce that Dr. Frank Yaghmaie of Shiply has
accepted to give a talk in the area of i-line resist. I have expressed more
and more lab members are using glass and quartz wafers and he will talk
about different method like, FSC, face shield coverage and the benefit of
dye in the resist.



                            The talk will be on
                       Friday February 2nd. at 2 pm
                              Auditorium 101x

mahnaz





From Mwalker at k2optronics.com  Fri Feb  2 09:52:19 2001
From: Mwalker at k2optronics.com (Mary Walker)
Date: Fri, 2 Feb 2001 09:52:19 -0800 
Subject: Training for Wire Bonding:
Message-ID: <49CEF180383BD41198CA001083FC09561844F9@SERVER>

	Good Morning, Everyone;

		I am looking for someone, or a contact who can provide me
with some wire bonding training. My company is 	interested contracting
someone or company who can provide this service for me. If you or anyone, or
a company you know 	that will provide this training, please e-mail:
mwalker@ k2optronics.com, or call me at ( 408 ) 747-5915, ( 408 ) 543-4527,
or ( 	408 ) 431-2331. 

	Thanks for you help.
	Mary Walker
	K2Optronics
	E-mail: mwalker at k2optronics.com
	Phone: 408 747-5915
	Phone: 408 543-4527
	Phone: 408 431-2331



From donoghue at cis.Stanford.EDU  Sun Feb  4 16:24:00 2001
From: donoghue at cis.Stanford.EDU (Mary Donoghue)
Date: Sun, 04 Feb 2001 16:24:00 -0800
Subject: I'm leaving the SNF this week.
Message-ID: <4.2.0.58.20010204155728.00a5eb80@cis.stanford.edu>

Dear labmembers,

This coming Wednesday, 2/7/01 is my last day at the lab.  I'm leaving
to take another job at Stanford.  I'll be working for ITSS and will be in the
Birch Trailer, not far from CIS.   I didn't want to leave without saying 
goodbye.

I wish you all the greatest success in the future.

Very sincerely,

--Mary



*******************************************
Mary Donoghue
Stanford Nanofabrication Facility
CIS 043
420 Via Palou Mall
Stanford University
Stanford, CA  94305-4070

Phone:  (650) 725-3664
Fax:    (650) 725-6278


From mtang at snf.stanford.edu  Mon Feb  5 11:21:37 2001
From: mtang at snf.stanford.edu (Mary Tang)
Date: Mon, 05 Feb 2001 11:21:37 -0800
Subject: Labmember Survey...
Message-ID: <3A7EFD41.16D3DA67@snf.stanford.edu>

Fellow Labmembers:

This is the last call for Labmember Survey forms!
(We're going to start collating the forms tomorrow morning, so please
have those filled out survey forms into the labeled box by the lab by
the end of today.)

Thanks --

Mary





From caudillomalik at netscape.net  Tue Feb  6 21:13:57 2001
From: caudillomalik at netscape.net (david caudillo)
Date: Wed, 07 Feb 2001 00:13:57 -0500
Subject: FYI: 2/6  Lab Is Down Due To Major Power Outage
Message-ID: <51B7F2A6.119951CF.0DC3DFDB@netscape.net>

I do not know the current facility status there at the lab. If anyone should find out when the lab will be up and running please broadcast a message out to all. Thank You
Caudillo

--
David Caudillo


__________________________________________________________________
Get your own FREE, personal Netscape Webmail account today at http://webmail.netscape.com/


From rcrane at snf.stanford.edu  Wed Feb  7 08:17:57 2001
From: rcrane at snf.stanford.edu (Dick Crane)
Date: Wed, 07 Feb 2001 08:17:57 -0800
Subject: Neutralizer Down
Message-ID: <3A817535.2DEF9925@snf.stanford.edu>

The acid waste neutralizer system will be down from 0800 to 1200 this
morning. Please contact any of the fab maintenance crew before dumping
any hot pot or other acid source to drain. We will operate the
neutralizer manually. The wet benches may be operated normally as to
quickdump rinsers, HF pots, and SRDs.

An outside contractor has installed a new NaOH delivery line and is
completing the final hookup. This change will eliminate the problems
between the LN2/gasous N2 line and the NaOH line which caused the
neutralizer shutdown last month. 

Thanks for your help,

Dick Crane


From mahnaz at snf.stanford.edu  Wed Feb  7 08:31:42 2001
From: mahnaz at snf.stanford.edu (Mahnaz Mansourpour)
Date: Wed, 07 Feb 2001 08:31:42 -0800
Subject: Lab is up
Message-ID: <3A81786E.A86261CC@snf.stanford.edu>

Hello All,

Litho area is up and running.

see you

mahnaz



From rcrane at snf.stanford.edu  Wed Feb  7 12:03:43 2001
From: rcrane at snf.stanford.edu (Dick Crane)
Date: Wed, 07 Feb 2001 12:03:43 -0800
Subject: Neutralizer is up
Message-ID: <3A81AA1F.AB620044@snf.stanford.edu>

The acid waste neutralizer is up and running. Fully use of wet benches
(acid dumping) may resume.

Thanks for your patience,

Dick Crane


From cheng1 at stanford.edu  Wed Feb  7 14:17:02 2001
From: cheng1 at stanford.edu (Ching-Hsiang Cheng)
Date: Wed, 7 Feb 2001 14:17:02 -0800 (PST)
Subject: In-situ Boron doped polysilicon
Message-ID: <Pine.GSO.4.31.0102071414310.3063-100000@cardinal0.Stanford.EDU>

Dear labmembers,

  Does anyone know any outsources for the in-situ boron doped polysilicon?

Thanks

Ching-Hsiang



From mahnaz at snf.stanford.edu  Wed Feb  7 15:41:13 2001
From: mahnaz at snf.stanford.edu (Mahnaz Mansourpour)
Date: Wed, 07 Feb 2001 15:41:13 -0800
Subject: Kind remider
Message-ID: <3A81DD19.4CC3452E@snf.stanford.edu>


Chad from EV will be here tomorrow , we are planning to do a training on
the bonder starting 8:45 in the lab. To all the people whom been
waiting patiently please try to attend this session. There has been lots
of problem with the bonder that some of them is associated with
different users expertise so please do your best to attend this class
even though is such a short notice.
There will be a training session on the EV aligner as well afterward.

The Talk on bonding will be in the afternoon at 2 to 4 in the CIS-101.

Mahnaz





From mbell at snf.stanford.edu  Thu Feb  8 20:10:08 2001
From: mbell at snf.stanford.edu (Mike Bell)
Date: Thu, 08 Feb 2001 20:10:08 -0800
Subject: Scheduled Coral downtime 6-7 AM
Message-ID: <3A836DA0.81672C10@snf.stanford.edu>

Members,

Coral is scheduled to down tomorrow, Friday 02/09/2001 from 6-7 AM for
maintenance.

Thanks,

Mike Bell
725-9503



From latta at snf.stanford.edu  Fri Feb  9 13:47:52 2001
From: latta at snf.stanford.edu (Nancy Latta)
Date: Fri, 9 Feb 2001 13:47:52 -0800 (PST)
Subject: Solvent tranfer cart?
Message-ID: <Pine.LNX.4.04.10102091344510.11679-100000@snf.stanford.edu>

Folks,

Both stainless steel solvent transfer carts are missing.  If you have them
or know where they are, will you please make every effort to return them?
In their absence other labmembers are forced to use the incorrect polypro
transfer carts.  This is a potential hazard.

Thanks for your help in returning the metal carts,

				Nancy



From shott at snf.stanford.edu  Sat Feb 10 11:38:17 2001
From: shott at snf.stanford.edu (John Shott)
Date: Sat, 10 Feb 2001 11:38:17 -0800
Subject: Common courtesy in a shared environment ....
Message-ID: <3A8598A9.60A30E12@snf.stanford.edu>

SNF Lab Members:

There have been a recent set of messages related to problems created by people
making reservations on equipment and then not showing up to use them, people
leaving messes at various pieces of equipment and then failing to clean up
after themselves, etc.  To that list, I'll add people who leave equipment
enabled in their name for extended periods of time which  either confuses
people who may need to use that equipment, allows others to use it for free,
or makes it impossible to track down people who carelessly use equipment.
Note: Not all of these messages have been widely disseminated.  Nonetheless,
it is clear that there are a number of people in the lab who are observing
behavior that seems to point to a lack of common courtesy in living and
working in a shared laboratory.

Please remember that in an average month we have over 150 individuals working
in the lab.  It is a challenge to keep this place operational under the best
conditions ... all of these inconsiderate actions make it more difficult for
all of us.

Please remember to:

1. Clean up after yourself!  Many of the chemicals and materials we use are
potentially very hazardous and put others at risk if not handled and disposed
of properly.

2. If you can't use a reservation ... cancel it!

3. When you are done with equipment, disable it! We've heard the excuse too
many times: "Gee, someone must have used the equipment after I did ... it was
fine when I finished ..."
(Of course, the corollary to this is "Enable equipment in your name when you
are using it").

If people can't voluntarily comply with these rules and guidelines, I'm sure
that we can find ways to "encourage" greater compliance.  For example,
charging a fee for unused equipment reservations or eliminating the monthly
equipment cap completely would probably get a number of people's attention ...

Thanks for your cooperation,

John


From shott at snf.stanford.edu  Tue Feb 13 09:08:24 2001
From: shott at snf.stanford.edu (John Shott)
Date: Tue, 13 Feb 2001 09:08:24 -0800
Subject: Keys found ...
Message-ID: <3A896A08.D3BBC555@snf.stanford.edu>

CIS Building Occupants and SNF Lab Members:

A set of keys was found in the CIS kitchen late Monday and turned in to me
overnight.

If you are missing a set of keys please let me know ...

Thanks,

John


From shott at snf.stanford.edu  Wed Feb 14 14:01:20 2001
From: shott at snf.stanford.edu (John Shott)
Date: Wed, 14 Feb 2001 14:01:20 -0800
Subject: Unauthorized use of equipment, sharing of passwords, etc.
Message-ID: <3A8B0030.ED39EDB7@snf.stanford.edu>

SNF Lab Members:

Earlier this week we found an instance of an unauthorized user operating a
piece of equipment that they had enabled by logging in as someone else (who
was authorized to use that piece of equipment).

The first person has been banned from using SNF until early April and the
person who gave away their password will not be allowed to use the lab for the
next month.

Lest there be any possible confusion as to our policies, let me clarify:

Under no circumstances it is OK to log in as someone else to use equipment in
their name!!! Nor is it acceptable for someone to enable equipment that you
use "in their name". Anyone found acting in this way will be banned from the
lab for a similar period ... as will the person who gave away their password
or enabled the equipment.

Why is this our policy?

1. We expend a great deal of effort in training individuals to use each piece
of equipment in the lab because many pieces of equipment are complex, use
hazardous chemicals, have high voltages, etc.  While I'm sure than many will
point out that our existing training could be improved or more rigorous ...
there are plenty of good reasons (including the welfare of the equipment, the
health and safety of all in the lab, and liability issues) that we go to such
lengths to keep specific track of who is authorized to use each piece of
equipment.  Unauthorized use of equipment undermines all of that and greatly
increases our collective risk of facing serious problems in the SNF.

2. Our charging algorithm is based on the individual user.  Enabling equipment
in someone else's name, in effect, allows two people to work for the cost of
one ... assuming that one of them reaches the monthly cap.  The current policy
is that each individual is subject to their own cap ... as long as that is the
policy, we expect that all lab members will follow that policy.  Because we
are contrained to operate on a break-even basis, anybody who "underpays" by
charging their equipment time to someone who is going to reach their cap
effectively increases the costs born by the vast majority of folks who play by
the rules. That unfairly punishes those who follow the rules.

If these policies are unclear in any way, please do not hesitate to contact
me.

Thanks for your cooperation and continued support,

John


p.s. If there are any of you out there who feel a sudden urge to change your
password, you can do so by issuing the command "passwd" to a window with a
sunray prompt.  This will prompt for your old password, and then (twice) for
your new password.  Note: you actually have an account on snf as well (which
typically has the same password).  Accordingly, you will probably also want to
go to snf.stanford.edu (using "ssh snf" which will prompt you for your old
password there ...).  Once on snf, you can issue the "passwd" command there
and go through the same exercise to change your password there.

p.p.s.: Because of different encryption methods, any of you using remote coral
have also set your "Remote Coral" password ... this may be changed with the
"Set Remote Coral Password" on the LOCAL Coral client.


From shott at snf.stanford.edu  Wed Feb 14 18:49:40 2001
From: shott at snf.stanford.edu (John Shott)
Date: Wed, 14 Feb 2001 18:49:40 -0800
Subject: Welcome, Marilu Serrano
Message-ID: <3A8B43C4.612F8108@snf.stanford.edu>

SNF Lab Members:

I'm pleased to announce that Ms. Marilu Serrano has joined us to handle many
of the administrative duties previously handled by Mary Donoghue.

You should be able to find Marilu in Carrel 044 or should be able to reach her
electronically at mserrano at snf.stanford.edu or by phone at x5-3664.

Marilu has a good deal of experience at Stanford that she brings to this
position and I'm confident that she will contrbute very quickly to the smooth
operation of our enterprise.  Please remember, however, that there are a lot
of new things that she is facing ...

Please join me in welcoming Marilu to the Stanford Nanofabrication Facility.

Thanks,

John


From gymclean at alum.mit.edu  Fri Feb 16 12:43:13 2001
From: gymclean at alum.mit.edu (George Y. McLean)
Date: Fri, 16 Feb 2001 12:43:13 -0800
Subject: 12:00-14:00 drytek2 reservation cancelled
Message-ID: <2.2.32.20010216204313.006834a0@netmail.home.com>

Sorry for the past-last-minute notice.



From rcrane at snf.stanford.edu  Fri Feb 16 17:47:35 2001
From: rcrane at snf.stanford.edu (Dick Crane)
Date: Fri, 16 Feb 2001 17:47:35 -0800
Subject: Regarding Gas Supplies
Message-ID: <3A8DD837.3484DECA@snf.stanford.edu>

As some of you are aware, in the past two weeks we have run out of three
process gases. This is simply unacceptable and quite embarrassing to me.
Measures taken last year have proven to be inadequate. To prevent future
interruptions I have taken the following measures:

1. All gas pressures and/or weight will be recorded daily.
2. Use trends plotted weekly.
3. Inaccurate scales will be replaced.
4. Where allowable by space and permit restrictions, spare bottles will
be ordered ahead and placed in stock.
5. The ordering process will be streamlined. (Some gases have taken ten
weeks to arrive.)

As members of the fab community, I need you to notify me, Ray, or Mike
Dickey of any anticipated change in gas use rate least you surprise us.

Thanks for your help.

Dick Crane


From litteken at stanford.edu  Mon Feb 19 21:59:48 2001
From: litteken at stanford.edu (Christopher S. Litteken)
Date: Mon, 19 Feb 2001 21:59:48 -0800
Subject: Custom Copper Micro-fabrication 
Message-ID: <NDBBLEAFCLMFIMNBMJJBEEBHCIAA.litteken@stanford.edu>

Does anyone have experience with or knowledge of a custom micro-fabrication
facility with either copper etch or damascene capabilities.  I need to
pattern structures with only copper and low-k layers that have features less
than 1 micron.

Your input is appreciated.
Chris
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From mahnaz at snf.stanford.edu  Tue Feb 20 17:36:30 2001
From: mahnaz at snf.stanford.edu (Mahnaz Mansourpour)
Date: Tue, 20 Feb 2001 17:36:30 -0800
Subject: UP
Message-ID: <3A931B9E.7F0FB7B8@snf.stanford.edu>


Hello all,

I like to let everyone know that the bonder is up and I ran one anodic
bond and looked ok. I have to ask every one to take the time and review
your recipe very carefully. No more than 1500 N force should be applied
to the system at any point of time. No resist or epoxy  should go in to
the system.  Remember the system is very much material dependent. Take
the time and review  your recipe as  many damages is done  by running
the  wrong recipe. If your recipe does not have the comment in that with
your name and I see something is wrong I will delete that unless I hear
from you. We have to take responsibility toward that, there are many of
you and only one of me ( I am looking in to cloning) .  We can not
afford ( financially and time wise) to go down again or any time soon.

I will arrange a training for early next week.
mahnaz



From bmurray at snf.stanford.edu  Wed Feb 21 15:07:16 2001
From: bmurray at snf.stanford.edu (Bill Murray)
Date: Wed, 21 Feb 2001 15:07:16 -0800 (PST)
Subject: Scheduled Coral Downtime
Message-ID: <Pine.LNX.4.04.10102211501550.8569-100000@snf.stanford.edu>

Lab members,

In preparation for tomorrow's power outage from 7:00am to 8:00am, we will be
bringing Coral down at 11:30pm tonight, Wednesday, February 21, for one hour.  
Please enable any equipment that you will be using during this time before
11:30pm.

Thanks,
The Coral Development Team



From jerabek at snf.stanford.edu  Thu Feb 22 14:43:00 2001
From: jerabek at snf.stanford.edu (Paul Jerabek)
Date: Thu, 22 Feb 2001 14:43:00 -0800 (PST)
Subject: failure notice (fwd)
Message-ID: <Pine.LNX.4.04.10102221442270.4983-100000@snf.stanford.edu>



---------- Forwarded message ----------
Date: 22 Feb 2001 22:06:37 -0000
From: MAILER-DAEMON at snf.stanford.edu
To: jerabek at snf.stanford.edu
Subject: failure notice

Hi. This is the qmail-send program at snf.stanford.edu.
I'm afraid I wasn't able to deliver your message to the following addresses.
This is a permanent error; I've given up. Sorry it didn't work out.

<members at snf.stanford.edu>:
Sorry, no mailbox here by that name. (#5.1.1)

--- Below this line is a copy of the message.

Return-Path: <jerabek at snf.stanford.edu>
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  by localhost with SMTP; 22 Feb 2001 22:06:37 -0000
Date: Thu, 22 Feb 2001 14:06:37 -0800 (PST)
From: Paul Jerabek <jerabek at snf.stanford.edu>
To: members at snf.stanford.edu
Subject: Micronic laser writer
Message-ID: <Pine.LNX.4.04.10102221356310.4983-100000 at snf.stanford.edu>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII

 As many of you who need masks already know Laser writer is down.However
what we thought was a case of burned out terminal turned out to be a
burned out computer board.Micronic service doesn't have a replacement here
in US.They have to get it from Sweden (it's a Swedish machine) so it might
take some time.There is somebody coming here from Sweden this Friday
evening so I hope that person will be able to bring in new board.
 Those people who need masks right away, please let me know and I can send
your mask request to out industrial vendor Compugraphics.The price per
mask is however quite higher (about $750.- per 5" contact mask).
-Paul



From footer at leland.stanford.edu  Fri Feb 23 13:19:48 2001
From: footer at leland.stanford.edu (Matthew Footer)
Date: Fri, 23 Feb 2001 13:19:48 -0800
Subject: Sapphire wafers
Message-ID: <v04210101b6bc8441539a@[171.65.26.96]>

Hi,

I am looking for suppliers of Sapphire wafers, ND 1.78.  I will need
custom cut pieces approximately 0.15mm thick.  Any information would
be greatly appreciated.  Thanks.

Matt
_________________________
Matthew J. Footer
Department of Biochemistry
Beckman, B477
279 Campus Drive West
Stanford, CA  94305-5307
650-725-6376
650-723-6220
650-725-6044 fax


From lgx at stanford.edu  Sun Feb 25 21:10:19 2001
From: lgx at stanford.edu (Guanxiong Li)
Date: Sun, 25 Feb 2001 21:10:19 -0800
Subject: Photoresists
Message-ID: <003001c09fb2$699a7860$966a40ab@stanford.edu>

Hi,

Does anybody know whether the photoresist 3612 or SPR220-7 after hard cure would dissolve in methylene chloride?

Your input is much appreciated. Thanks!

Regards,

Guanxiong Li
================================
Materials Science and Engineering
Stanford University

Phone: (650)723-2939 (O)
Office: McCullough 208
===============================
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From king at snf.stanford.edu  Mon Feb 26 10:32:26 2001
From: king at snf.stanford.edu (Robin King)
Date: Mon, 26 Feb 2001 10:32:26 -0800 (PST)
Subject: Sapphire wafers
In-Reply-To: <v04210101b6bc8441539a@[171.65.26.96]>
Message-ID: <Pine.LNX.4.04.10102261017510.11284-100000@snf.stanford.edu>


As always, it is appreciated when the answers to these kinds
questions are summarized and posted to the same mail list.

Thanks in advance,
Robin King

On Fri, 23 Feb 2001, Matthew Footer wrote:

> Hi,
> 
> I am looking for suppliers of Sapphire wafers, ND 1.78.  I will need
> custom cut pieces approximately 0.15mm thick.  Any information would
> be greatly appreciated.  Thanks.
> 
> Matt
> _________________________
> Matthew J. Footer
> Department of Biochemistry
> Beckman, B477
> 279 Campus Drive West
> Stanford, CA  94305-5307
> 650-725-6376
> 650-723-6220
> 650-725-6044 fax
> 



From aaronp at leland.stanford.edu  Tue Feb 27 15:59:44 2001
From: aaronp at leland.stanford.edu (Aaron Partridge)
Date: Tue, 27 Feb 2001 15:59:44 -0800
Subject: Presentation this Thursday: A new direct write alignment tool.
Message-ID: <v04210102b6c1e7d76f8c@[65.11.104.183]>

Lab Members:

At a recent conference in Switzerland I was introduced to a company, 
Heidelberg Instruments, that makes a direct-to-wafer laser exposure 
tool.  I was told that it can draw 0.5um features over a 4" wafer, 
aligned to global marks, in only 5 minutes per wafer.

Alexander Forozan, the Manager of Technical Sales & Marketing at 
Heidelberg Instruments, will be here to present an overview of his 
equipment, describe how it can be used with our work and answer our 
questions.

The presentation will be this Thursday, March 1st, at 10:30 AM in the 
CISX Auditorium.

Aaron


From mcvittie at cis.Stanford.EDU  Tue Feb 27 18:12:57 2001
From: mcvittie at cis.Stanford.EDU (Jim McVittie)
Date: Tue, 27 Feb 2001 18:12:57 -0800 (PST)
Subject: Use of Gloved Hand to Transfer Wafers is NOT Allowed
Message-ID: <Pine.SOL.4.05.10102271809440.7896-100000@cis>

Lab Users,

On Sunday I got the following note from one of the senior grad students in
the lab:

>      I wonder if certain lab practices have changed recently. Today I
>found a person trying to transfer wafers from nonmetal cassette to wbdiff
>cassette with just a pair of vinyl gloves. I stopped him from going into
>wbdiff and asked him why wasn't he using plastic tweezers. He said he did
>not want to scratch the wafers which he intended to bond. I suggested
>cassette to cassette dump transfer and he claimed it to be a dirty method
>and thought vinyl gloves out of bag are very clean! It is very easy for
>the clean gloves to touch several dirty surfaces without user knowing
>about it. Apart from that, I observed his method of adding chemicals and
>didn't find it particularly clean either.  Please explain to me and
>entire lab if there are new wbdiff policies in place (which I didn't see
>in last 4 years of my lab work).

There is long standing lab policy to never touch wafers during processing
with your hands with or with gloves on. Without gloves one contaminates
the wafers with finger oils which are loaded sodium and impossible to
completely remove. With gloves one still contaminates the wafers with
glove residues and particles picked up from previous surfaces touched the
gloves. Please follow the lab rules in processing your wafers. There are
good reasons for the rules and are consequences for not following them.

	Thanks,		Jim 	
--------------------------------------------------------------
James P. McVittie	                Senior Research Scientist
Allen Center for Integrated Systems     jmcvittie at stanford.edu
Stanford University             	Tel: (650) 725-3640	
Rm. 336, 330 Serra Mall			Fax: (650) 723-4659
Stanford, CA 94305-4075