Hi Raye,

AOI, as the name indicates, scans the reflective metal surface and compare
with master data. It may be possible to detect certain defects in solder
mask and others, but I don't think that would be a good use of such valuable
resources. 

Best Regards,

Jason Zhao
VP of North America Operations
Sunshine Circuits
3400 Silverstone Drive, Suite 139, Plano, TX 75023
US Cell 510-468-4412, China Cell 131-62722392
High Mix, High Tech, Low-Mid Volume PCB Manufacturer
www.sunshinepcbgroup.com

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Rivera, Raye
Sent: Friday, November 15, 2013 3:33 PM
To: [log in to unmask]
Subject: [TN] AOI in PCB manufacturing

Hello technetters,

Could someone enlighten me on how AOI is used in PCB fabrication? Is it used
to inspect finished boards after the solder mask, silkscreen, final drill
and routing operations? Or is it only used to inspect conductor patterns?

I am trying to understand if AOI could detect defects in solder mask,
silkscreen, missing mouse bites, etc.

Best regards,
Raye Rivera

QA Manager * Canoga Perkins


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