conductivity meter -

look @
http://www.vwrsp.com/catalog/product/index.cgi?object_id=0007691&resultNum=0

good luck,

al


Date: Thu, 10 Mar 2005 14:41:09 -0500 (EST)
From: [email protected]
Subject: [mems-talk] conductivity meter
To: [email protected]
Message-ID: <[email protected]>
Content-Type: text/plain;charset=iso-8859-1

Hi,
I am looking to purchase a basic (& cheap) portable conductivity meter (to
measure water-based liquids in the range 0 to 1000 uS/cm). Can anyone
guide me to a reliable vendor ?
Thanks,
Vinit





------------------------------

Message: 9
Date: Thu, 10 Mar 2005 16:21:55 -0800
From: "Eric Dy" 
Subject: [mems-talk] PECVD PolySi Deposition
To: "General MEMS discussion" 
Message-ID: <[email protected]>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
        reply-type=original

Does anyone have a recipe to deposit ~5um of polysilicon via PECVD?  I'm
depositing the poly to act as a structural layer for a comb drive.

Thanks,
Eric



------------------------------

Message: 10
Date: Thu, 10 Mar 2005 20:23:24 -0500
From: "[email protected]" 
Subject: RE: [mems-talk] PECVD PolySi Deposition
To: [email protected]
Message-ID: <[email protected]>
Content-Type: text/plain; charset=iso-8859-1

Eric,

No matter what people tell you, every pecvd system is different  Gas
flows, chamber pressures, substrate temps, are all unique to each system

You have to work it out for yourself

Brent


------------------------------

Message: 11
Date: Fri, 11 Mar 2005 10:33:02 +0000 (Asia/Calcutta)
From: Vikas Nair 
Subject: [mems-talk] High fequency amplification
To: General MEMS discussion 
Message-ID:
        
Content-Type: TEXT/PLAIN; charset=US-ASCII

Hi guys,
I wish to amplify the voltage of a high fequency signal (~10Mhz) from 2-3
volt to abt 100 Volt. Currents involved are very small. Can transformers
be used for such applications...I am from a mechanical backgrnd, so not
very good at electronics :)
thanks

cya




------------------------------

Message: 12
Date: Fri, 11 Mar 2005 14:14:57 +0800
From: =?big5?B?Q1kgSHNpZWggwcKmTqtp?= 
Subject: RE: [mems-talk] AZ4620 Removal after High temperature Bake
To: "General MEMS discussion" 
Message-ID:
        <[email protected]>
Content-Type: text/plain;       charset="big5"

Try O2 Ashing (not completely) first and then ACE cleaning.
It may work ?


------------------------------

Message: 13
Date: Fri, 11 Mar 2005 14:21:43 +0800
From: =?big5?B?Q1kgSHNpZWggwcKmTqtp?= 
Subject: RE: [mems-talk] Reliability of Ti-Au metal stack
To: "General MEMS discussion" 
Message-ID:
        <[email protected]>
Content-Type: text/plain;       charset="big5"

I don't know the reliability issue caused by Ti-Au stack.
But I know that Ti/Au, Ti/Pt/Au...etc. is very popular for GaAs
microwave device fabrication for years.

C.Y.


------------------------------

Message: 14
Date: Fri, 11 Mar 2005 14:26:03 -0500
From: "sonirohitsoni" 
Subject: [mems-talk] about ansys
To: 
Message-ID: <[email protected]>
Content-Type: text/plain; charset=us-ascii

hi everyone

            i am working on ansys.my task is stress analysis of  vcsel
membrane.for this one i am using layern shell181 element.
            vcsel structure has 25 layers of SiO2 and Si2N3 and i have to give
some initial stress value to these layers.for this one i am using ISFILE command
but the problem is that i am not able to use this command more then one time.if
i am using it override the previous stress input data.in one time i can give
only one particular stress value only.but i have to assign different stress
value in different layers.

       if someone  have some valueable suggestion plz reply me as early as
possible.

 with regards

rohit soni


------------------------------

Message: 15
Date: Thu, 10 Mar 2005 17:01:24 -0800 (PST)
From: Pavel Neuzil 
Subject: [mems-talk] electrochemical etching of silicon
To: [email protected]
Message-ID: <[email protected]>
Content-Type: text/plain; charset=us-ascii

Hello,
Hi Ananth,
we have one from AMMT in Germany specifically designed
for porous silicon formation or silicon
electropolishing. It works very well and it is user
friendly
Pavel


------------------------------

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End of MEMS-talk Digest, Vol 29, Issue 11
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