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.
>
> ##############################################################
> TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c
> ##############################################################
> To subscribe/unsubscribe, send a message to [log in to unmask] with following text in
> the body:
> To subscribe:   SUBSCRIBE TECHNET <your full name>
> To unsubscribe:   SIGNOFF TECHNET
> ##############################################################
> Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional
> information.
> If you need assistance - contact Keach Sasamori at [log in to unmask] or
> 847-509-9700 ext.5315
> ##############################################################

##############################################################
TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c
##############################################################
To subscribe/unsubscribe, send a message to [log in to unmask] with following text in
the body:
To subscribe:   SUBSCRIBE TECHNET <your full name>
To unsubscribe:   SIGNOFF TECHNET
##############################################################
Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional
information.
If you need assistance - contact Keach Sasamori at [log in to unmask] or
847-509-9700 ext.5315
##############################################################