Paul,

I certainly will talk to Ingemar.

You said that "the outer chamfer must be ground = evenly sharp exit".

Could you expand on this as I'm not sure what you mean.


Thanks for your input

Gareth Jones
Celestica Ltd
[log in to unmask]

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

Gareth, check our past correspondence with Ingemar on this subject (IPC
archives)
If your gold particles will be as flaky as Inge's silver you may find it
interesting to talk to him;
I think he's just nearing to some resolutions .
Otherwise pending the machine used (camelot/asymtek/[both have web
sites]etc.);they will make you custom needle .
Sometimes I found custom carbide needles from adjacent industry like Nordson
(hot glue jets),
http://www.nordson.com ;
much more precise with low impedance of flow (inside polish):
If Inge won't reply to this one (seems flat out somewhere)I'll mail you the
crosscut picture of a standard needle to see what you're up against (not a
pretty sight).
Nordson can also supply the cleaning broaches you need for cleaning of this
micro's ,
I think Martin just contacted a fellow there (Steve) for the same .

Paul Klasek
ResMed

PS
You may know this ; the outer chamfer must be ground = evenly sharp exit .


-----Original Message-----
From: Gareth Jones [mailto:[log in to unmask]]
Sent: Wednesday, 27 October 1999 3:09
To: [log in to unmask]
Subject: [TN] Dispensing of conductive adhesives for flipchip attach


Hi Netters,

I'm looking for a needle capable of dispensing 80 micron blobs of conductive
adhesive. The adhesive is epoxy based with 5 micron gold particles. Does
anybody
know where i can buy a needle with a 80 micron bore.


Thanks very much for your input

Gareth Jones
Celestica Ltd

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