headers
DF Chen | 1 Feb 2005 02:23
Picon
Favicon

RE: Conductive epoxy CW2400, nonconductive??

Hi Gabriel Rojano
Thanks for your suggestions. 
I'm sorry that I did not give you a full description of the problem I encountered. There was no response in the
multimetre when I measured the resistance. Then I measured the block of epoxy directly, still I got the
same result. It seems that the epoxy itself is nonconductive at all. I checked the package and confirmed
that I was using the right epoxy-- CW2400 from Chemtronics.
Can anyone advice me?

thanks,
Chen DF
_______________________________________________
MEMS-talk <at> memsnet.org mailing list: to unsubscribe or change your list
options, visit http://mail.mems-exchange.org/mailman/listinfo/mems-talk
Hosted by the MEMS Exchange, providers of MEMS processing services.
Visit us at http://www.memsnet.org/
Permalink | Reply | 0 comments |
headers
jing xu | 1 Feb 2005 13:36
Picon
Favicon

a technique question

Dear sir or madam,

I have a small question about the bonding parameter. I want to know the bonding parameter (such as
temerature, time, force etc.) of the aluminum wire to the platinum material substrate.

It is great help if you can answer my question.

Best regards!

Jing
_______________________________________________
MEMS-talk <at> memsnet.org mailing list: to unsubscribe or change your list
options, visit http://mail.mems-exchange.org/mailman/listinfo/mems-talk
Hosted by the MEMS Exchange, providers of MEMS processing services.
Visit us at http://www.memsnet.org/
Permalink | Reply | 0 comments |
headers
Jukka.Viheriala | 1 Feb 2005 08:02
Picon
Picon

Re: Etchant for AlAs in PHEMT

BHF and HF are totally selective in this system. Also HCl should work.

-Jukka
_______________________________________________
MEMS-talk <at> memsnet.org mailing list: to unsubscribe or change your list
options, visit http://mail.mems-exchange.org/mailman/listinfo/mems-talk
Hosted by the MEMS Exchange, providers of MEMS processing services.
Visit us at http://www.memsnet.org/
Permalink | Reply | 0 comments |
headers
Michael Cooke | 1 Feb 2005 19:14
Picon
Picon

mask sticking

Hi

I am trying to stick various materials to give prior delaminated masks =
adhesion to a device structure. The "sticking material" then need to be =
etched through to give a reusable electroplating mask. Any potential =
ideas most appreciated. Thanks

Mike
Dr. Michael Cooke
Microsystems Technology Group
School Of Engineering
University of Durham
_______________________________________________
MEMS-talk <at> memsnet.org mailing list: to unsubscribe or change your list
options, visit http://mail.mems-exchange.org/mailman/listinfo/mems-talk
Hosted by the MEMS Exchange, providers of MEMS processing services.
Visit us at http://www.memsnet.org/
Permalink | Reply | 0 comments |
headers
Z.,W.Y.(Lydia | 1 Feb 2005 23:44
Favicon

Re: Can I deposit a metal layer on PDMS?

Hi, Licca,

Those cracks are probably due to the thermal stress generated during the
evaporation. A good paper for this issue is:

N. Bowden, S. Brittain, A. G. Evans, J. W. Hutchinson, G. M. Whitesides,
Spontaneous formation of ordered structures in thin films of metals supported on
an elastomeric polymer, Nature, Vol. 393, (1998) pp. 146-149.

I did not have any adhesion problems before when I e-beam evaported Al on top of
oxidized PDMS (Sylgard 184). If necessary, you can use Ti/Au instead.

Good luck,

Lydia 
_______________________________________________
MEMS-talk <at> memsnet.org mailing list: to unsubscribe or change your list
options, visit http://mail.mems-exchange.org/mailman/listinfo/mems-talk
Hosted by the MEMS Exchange, providers of MEMS processing services.
Visit us at http://www.memsnet.org/
Permalink | Reply | 0 comments |
headers
dhanamjaya guda | 2 Feb 2005 02:06
Picon

Polymer as a resist layer while etching silicon

Hi All,

        I would like to know whether i could use any polymer ( PMMA OR
PC) as a resist layer while doing isotropic etching of silicon. If not
could any one tell me how can i produce cylindrical posts with conical
head. I would really appreciate if any one could go a head and  reply
to this mail.

Thanks,
Dhanamjaya R Guda
_______________________________________________
MEMS-talk <at> memsnet.org mailing list: to unsubscribe or change your list
options, visit http://mail.mems-exchange.org/mailman/listinfo/mems-talk
Hosted by the MEMS Exchange, providers of MEMS processing services.
Visit us at http://www.memsnet.org/
Permalink | Reply | 0 comments |
headers
David Springer | 2 Feb 2005 05:04
Favicon

re: Polymer as a resist layer while etching silicon

Hello Dhanamjaya 

You can use any polymer while isotropic etching of silicon if you use xenon 
difluoride. It will not attack your polymers. XACTIX is the overwhelming market 
leader in providing equipment for XeF2 silicon etching. If you would like to 
try it please give contact me and we can run some samples.

David Springer
XACTIX Inc.
412 381 3195
www.xactix.com
_______________________________________________
MEMS-talk <at> memsnet.org mailing list: to unsubscribe or change your list
options, visit http://mail.mems-exchange.org/mailman/listinfo/mems-talk
Hosted by the MEMS Exchange, providers of MEMS processing services.
Visit us at http://www.memsnet.org/
Permalink | Reply | 0 comments |
headers
Goverdhan Madipadiga | 2 Feb 2005 08:29
Favicon

Polymer/ceramic nanocomposites suppliers


 Hi,

I am looking for polymer/ceramic nanocomposite suppliers.

Any information regarding this is highly appreciated.

Thanks,

Goverdhan Madipadiga.

_______________________________________________
MEMS-talk <at> memsnet.org mailing list: to unsubscribe or change your list
options, visit http://mail.mems-exchange.org/mailman/listinfo/mems-talk
Hosted by the MEMS Exchange, providers of MEMS processing services.
Visit us at http://www.memsnet.org/
Permalink | Reply | 0 comments |
headers
fabio quaranta | 2 Feb 2005 08:57
Picon
Favicon

RIE metal etching

Dear all,
I'm looking for a metal that could be etched in a fluorine based (SF6)
RIE and, if it's possible, that could be easily deposited by sputtering
or e-beam evaporation.

Thanks
Fabio
_______________________________________________
MEMS-talk <at> memsnet.org mailing list: to unsubscribe or change your list
options, visit http://mail.mems-exchange.org/mailman/listinfo/mems-talk
Hosted by the MEMS Exchange, providers of MEMS processing services.
Visit us at http://www.memsnet.org/
Permalink | Reply | 3 comments |
headers
Fouad Bouchriha | 2 Feb 2005 09:36
Picon
Picon
Favicon

Dimensions of Coplanar ring resonator

Dear all,

Please, I seek to know the conditions on dimensions of  Coplanar ring 
resonator.

Best regards

Fouad BOUCHRIHA
Doctorant / PhD student
_______________________________________________
MEMS-talk <at> memsnet.org mailing list: to unsubscribe or change your list
options, visit http://mail.mems-exchange.org/mailman/listinfo/mems-talk
Hosted by the MEMS Exchange, providers of MEMS processing services.
Visit us at http://www.memsnet.org/
Permalink | Reply | 0 comments |

Gmane