My invention is a trained 6-leg puce with a picocamera on the back, sending data to my WAP, but don't tell anyone, Gaby. /Ingemar
-----Original Message-----
From: Gabriela Bogdan [mailto:[log in to unmask]]
Sent: den 2 juni 2000 19:45
To: [log in to unmask]
Subject: Re: [TN] Other visual tests under a BGA possible?
Jurgen,
Zu spaet!
The Ersascope does just that. I don't have one, hope to get one .
Just write the Keyword in the archive search and you will get all the information. Nice
for you to know that the manufacturer is German. I just heard rumors about another one,
but I have to check it out. One thing though- it is a slow test, as you can imagine
from your own idea. Too bad, you could have made a lot of money!
Gaby
Jurgen Kruger wrote:
> Dear Members!
>
> With interest I follow your discussion about X-ray testing of BGAs. I would
> like to know, are there any other visual tests possible, to look under a
> soldered BGA? For example, with a very tiny camera using a
> glass-fibre-cable, say 0,5mm diameter? Is something like this in use? Or
> makeable? Would need a very tiny optical system? I got the impression, to
> solder BGAs reliable is a very delicate thing, isn't it?
>
> Sorry for my stupid statements, but I haven't any experience in BGAs nor
> testing of PCBs.
> Jurgen.
>
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