We are having issues with 0603 components attached with glue (Glue printed
with Pump printing)
that are being fallen in the wave soldering equipment.
The average dot size that we are having in these components is 0.025" and
the average torque value is 1 N-cm.
What could be possible causes for this issue?

Regards,

Alejandro Becerra
Thomson multimedia Inc




-----Original Message-----
From: Krug, Dick [mailto:[log in to unmask]]
Sent: Wednesday, March 13, 2002 9:54 AM
To: [log in to unmask]
Subject: Re: [TN] Glue Dot Size


We dispense glue using a positive displacement pump.
Dot diameter for 0603's is nominally 20 mils.
Dot diameter for 0805's is nominally 28 mils.
Dick Krug
Sypris Electronics

-----Original Message-----
From: Vinit Verma [mailto:[log in to unmask]]
Sent: Wednesday, March 13, 2002 7:19 AM
To: [log in to unmask]
Subject: [TN] Glue Dot Size


Hi All,

Has anyone ever worked with the Pump Printing Stencil for printing glue on
pre-inserted PCBs?? This stencil is developed by DEK but I'm not too sure of
how it works? Any experiences?

Also would be too kind if somebody could tell me the glue size requirement
for 0603 and 0805 components?

Thanks in advance

Regards
Vinit Verma

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