There are also inspection prisms, if you do not need an X-ray view. Here is one: http://www.techni-tool.com/550SO840
There are many brands, and they work quite well.
You use them in conjunction with a good microscope with at least a 4" working distance (focal point). You look straight down at the prism, and through the scope you can inspect the BGA spheres quite well, if you haven't had too much coffee.
A good practice is to have a couple beers or a shot of Akvavit first. Hey, it's justified!
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Tempea, Ioan
Sent: Wednesday, December 13, 2017 1:59 PM
To: [log in to unmask]
Subject: Re: [TN] Side view Microscopy
Hi Frank,
You might want to look at something like that http://www.kurtzersa.com/electronics-production-equipment/rework-inspection-systems/inspection-systems/produkt-details/ersascope-1.html
I believe Metcal make something similar (?)
Best regards,
Ioan
-----Message d'origine-----
De : TechNet [mailto:[log in to unmask]] De la part de Frank Kimmey Envoyé : December 13, 2017 2:56 PM À : [log in to unmask] Objet : [TN] Side view Microscopy
I'm looking for a way to non-destructively view BGA balls on a populated PCA.
Does anyone know of a microscope accessory that will allow 90 degree viewing?
Some kind of mirror or a very small camera, etc.
Mostly I am interested in outer ring balls only.
Something I can inspect solder joints with on a heavily populated board.
Xray and CSAM are not where I want to go, I am hoping for something using a microscope.
Any help is appreciated,
FNK
Frank N Kimmey CID+
Electrical Engineer / PCB Design
VeriFone Inc
1400 W Stanford Ranch Road, Suite 200
Rocklin, CA 95765 USA
W: 1-916-625-1818
M: 1-916-833-9877
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