Printed Circuit Board Assembly & PCB Design Forum
SMT electronics assembly manufacturing forum.
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Hi , Observed component drop during second reflow. Com... - Dec 03, 2018 by Ameen
I can't open your spread sheet to see how you calculate this... - Dec 03, 2018 by dwl
Hi, Thanks for the valuable feedback. Agree with you. ... - Dec 04, 2018 by Ameen
I would guess then that it is either variation in paste volu... - Dec 04, 2018 by Robl
Hi Rob, Thanks. We have inline SPI. Suspecting small j... - Dec 04, 2018 by Ameen
You can also consider the very old simple method with decrea... - Dec 05, 2018 by Evtimov
Hey, What would be the peak temp. ? ... - Dec 06, 2018 by Betty Hunt
Hi Betty , Its around. 215 to 220 deg C ... - Dec 06, 2018 by Ameen
Hi Evtimov, Thanks for the feedback. Will definitely t... - Dec 06, 2018 by Ameen
Hi Rob, We used different Reflow Oven and noticed the com... - Dec 06, 2018 by Ameen
If you go this route vibration will not be your focus. there... - Dec 06, 2018 by Evtimov
63/37 is eutectic. It's either a liquid or a solid at a spec... - Dec 06, 2018 by Sr. Tech
Sr. Tech it is not as simple as that. Viscosity of material ... - Dec 06, 2018 by Evtimov
63/37 goes from solid to liquid. It melts and solidifies at ... - Dec 07, 2018 by Sr. Tech
Thanks, Ameen ... - Dec 10, 2018 by Betty Hunt
What is the difference of the components that fall and the o... - Dec 11, 2018 by davef
Hi , There is no difference as such in the component. So ... - Jan 03, 2019 by Ameen
Yes, the barycenter causes drop off since only leads at one ... - Dec 25, 2019 by sssamw