Mark Thorson
science forum Guru Wannabe
Joined: 04 May 2005
Posts: 102
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 Posted: Tue Jul 11, 2006 7:57 pm Post subject:
Re: low ionics epoxy
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ratman wrote:
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I need to glue some parts (gold etc) in an amperometric cell.
Anyone know of good low ionics epoxies? Or are there better adhesives
for this?
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Epoxies made for semiconductor packaging must be low-ionic,
so they don't attack the aluminum bond pads. Search for
"glob top" epoxies.
Many silicones are inherently low in ionics. However,
if they contain mineral fillers, they won't be low-ionic.
Some glob-top encapsulants are made from silicone.
The only other adhesive family commonly used for
semiconductor packaging are polyurethanes.
Dymax makes those. |
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