MyData machines will do this. Is this part placed by Hydra or Midas
(for Midas, mechanical centering or vision)? Part presentation in the
feeder is the most likely cause. Adjust magazine trim in the
Y-direction, easier with Agilis. Try to tighten your package data to
reject this condition.
Careful observation should allow determination of the root cause.
Although this can take awhile with a 'rare occurrence'.
Does this happen across all 805 packages, or is it limited to a particular
part or vendor?
Good Luck,
Brad Vanderhoof
AITI
----- Original Message -----
Sent: Thursday, May 22, 2003 2:38
PM
Subject: [TN] Sideways Resistors
Technetters, I'm not sure if others see this situation, but it's a
somewhat rare occurrence when we see some resistors, like 0805's, soldered on
their sides. Though it's not a defect per the conditions of IPC-A-610, I
am still curious as to the root cause. I don't know if they somehow get
placed on their side or if they get pulled up that way during soldering.
Our P&P machine is a Mydata MY15, we use no-clean with reflow in
air, HASL boards, 6 mil stencil w/ homeplate apertures.
Any thoughts? Howard Watson
SMT Manufacturing Engineer
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