K H Benz was marketing an intrusive endoscope device here in Britain, you could try:
www.khbenz.co.uk
Regards
Eric Dawson
> -----Original Message-----
> From: [log in to unmask] [SMTP:[log in to unmask]]
> Sent: Friday, June 27, 2003 4:06 AM
> To: [log in to unmask]
> Subject: Re: [TN] ERSA vs METCAL
>
> Hi, Henry,
>
> I've also been looking for systems to visually inspect underneath BGA's and
> the likes, and had a go with an Ersascope. The full-fledged system with
> computer attached is very impressive (also rather expensive) but has one
> major limitation - it does not penetrate under the BGA, so you can only
> view everything from the edge of the component. If you have big BGA's (I
> use some that are 35mm and 40mm square, 1mm and 1.27mm pitch) it's quite
> difficult to see right to the middle of the device at this size - the light
> gets a bit uncertain and much of the interior balls is shielded from view
> by the serried ranks of other balls. On the plus side, it can see
> underneath any component with even a hint of a stand-off height.
>
> I was hoping to find just a simple sort of thin fibre optic thing like an
> edoscope that could be inserted beneath a BGA and allow you to view balls
> face to face, even at the centre, but have so far failed to find such a
> thing. If memory serves, there was a brief thread about such a gadget in TN
> quite a while ago, and I seem to recall someone (probably Steve G)
> mentioning a simple device costing relatively few dollars. Does anyone know
> of such a thing?
>
> Peter
>
>
>
> Henry Rekers <[log in to unmask]> 27/06/2003 03:21 AM
> Sent by: TechNet <[log in to unmask]>
>
> Please respond to "TechNet E-Mail Forum."; Please respond to Henry Rekers
>
> To: [log in to unmask]
> cc: (bcc: DUNCAN Peter/Asst Prin Engr/ST Aero/ST Group)
> Subject: [TN] ERSA vs METCAL
>
>
>
>
>
>
>
>
> We are looking at "under the BGA" inspection systems.
>
> Does anybody have any opinions regarding ERSASCOPE or METCAL VPI-1000?
>
> Thanks.
>
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