Electronics Forum | Thu Jul 12 21:21:24 EDT 2001 | mugen
Hear! Hear! Hark do we hear the ringing bell of the town crier? DFM = design for manufacturability covers PDCA cycle for prototype and practically anything that needs engineering (common sense inclined) review, under the glorious sunny radiant heat
Electronics Forum | Wed Jul 04 15:27:11 EDT 2001 | davef
Hardly a ringing endorsement by most standards. Why don't you call the equipment manufacturer provided user list that you called during the evaluation of the equipment prior to purchase. Never trust a dog with a dead chicken in its mouth.
Electronics Forum | Wed Jul 04 09:53:00 EDT 2001 | johnw
Hi guys Have any of you guys came up with a feeder calibration process I am having alot of trouble with pickup errors and attrition due to feeders. I believe Fuju have a DT-5 but this costs a fortune I need help big time here
Electronics Forum | Tue Jul 17 19:30:15 EDT 2001 | Anonymous
John, Fuji also has a cheaper feeder jig other than the DT-651 or DT-5. Contact Joel at Fuji America Corporation in the parts department for more information. The training department has one in their area for feeder maintenance training.
Electronics Forum | Thu Jul 05 07:34:57 EDT 2001 | steven
what is the main reasons that casuing solder ball during reflow? and how to remove them? (mostly arround the connector leads or between the 2 0402 chips). solder paste is RMA type. need advise. thanks
Electronics Forum | Thu Jul 05 09:27:05 EDT 2001 | blnorman
Our solder ball problem is linked to moisture. If the paste sits on the board too long (especially during our humid summer months) we experience the problem. As far as the problem being specific to components or areas of the board, maybe some of th
Electronics Forum | Fri Jul 06 04:02:28 EDT 2001 | eliishee
Thanks guys for all the input. i'm still struggling to find out the main cause. at time being, urgently need a suggestion of a effective way to remove all these solder balls. THANKS AGAIN.
Electronics Forum | Fri Jul 06 18:17:34 EDT 2001 | davef
We find no solder balls after washing our boards. It works GREAT!!! ;-) Probably more to the point, look at "Circuits Assembly" 7/01, p 40, "Eliminating Solder Beads In No-Clean PCBs". "Solder mask type & composition are the greatest contributor t
Electronics Forum | Tue Jul 10 03:14:19 EDT 2001 | winnifred
Steven, Dave is right, wash them away. Since it is RMA paste, you may need to have a saponifier to go for Semi-aqueous washing. Or you may want to contact your supplier for a cleaner to wash it away with some agitation ( ultrasonic). Mag.
Electronics Forum | Mon Jul 16 19:27:27 EDT 2001 | eliishee
I have no choice, as per customer's request to remove the solder balls. Can i use water to clean away the solder ball since i'm using RMA solder paste not the water soluable paste.
