Well, may be useful for some products, but not for our largest hybrids with hundreds of chips,
little space for tools and risk to damage neighbour chips. The idea about vacuum was interesting, will
save that. Brian's tool (miniatyrized though)plus vacuum not bad idea.
Thanks, Ramon
Ingemar
-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Dehoyos, Ramon
Sent: den 1 juli 2005 15:38
To: [log in to unmask]
Subject: Re: [TN] Semi chip removal tool wanted
Inge:
Soften it with a soak in hot a MEK or NMP bath and scrap
it off with a thin sharp blade. Other method, glue chip carrier to a
block, fix block and use a slow speed blade to cut epoxy, which will
direct particles in one direction, and vacuum the particles away to keep
chip clean.
Regards,
Ramon
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Ingemar Hernefjord
(KC/EMW)
Sent: Friday, July 01, 2005 9:03 AM
To: [log in to unmask]
Subject: [TN] Semi chip removal tool wanted
Hi everyone.
Anybody seen a good tool for removing silver epoxy mounted semiconductor
chips? Probably kind of electromechanical mini tool, but I have not
found any useful. Diamond high rpm tool is not good because you spread
particles all around. Shearing is seemingly best way. Today's method
with sharp tool and hammer is too primitive.
Ingemar Hernefjord
Ericsson Microwave Systems
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