Electronics Forum | Sun Jun 16 08:00:51 EDT 2013 | zaldytorres
Does anyone have suggestion how to modify radial insertion machine to 3.5mm pitch? I have to insert 3.5mm pitch Ecap but the industry standard radial machine could mount only 2.5 or 5 mm pitch. changing PCB or parts is not an option as it is not appr
Electronics Forum | Mon Sep 25 16:14:16 EDT 2000 | LarryK
What do you all do to fix coplanarity on fine pitch QFPs? I know that the best thing would be to send them back to the vender, but what about the when you gotta use them? Straightening by hand seems to be so time comsuming. Any better ways? Larry
Electronics Forum | Mon Dec 16 13:05:20 EST 2002 | k_h
Are you using "on-contact" printing? (is the stencil touching the PCB during squeegee travel)
Electronics Forum | Mon Dec 16 13:24:25 EST 2002 | Stephen
What paste are you using?
Electronics Forum | Mon Dec 16 13:33:09 EST 2002 | pjc
square apertures provide better paste release than round in most applications. See IPC 7525 Stencil Design Guidelines
Electronics Forum | Mon Dec 16 21:35:46 EST 2002 | grantp
Hi, We tried AIM no clean, and one other paste which I cannot remember the name offhand. We have been using Koki lately, and that's been the best. It seems to leave less residue behind in the stencil. Regards, Grant Petty Blackmagic Design
Electronics Forum | Wed Oct 16 10:05:36 EDT 2013 | markhoch
I heard it works well on Chrome Rims for your car too. Swag, I'm not at all suggesting that your operators have discovered this and this is why you keep running out and have to keep ordering it :-p
Electronics Forum | Thu Oct 17 16:19:04 EDT 2013 | island2013
I've used the Nano Protek product in the past and it is fantastic, worth every penny for those small aperatures. It's just like a wax and yes it works great on rims ;)
Electronics Forum | Mon Dec 16 21:34:05 EST 2002 | grantp
Hi, Yes, the stencil does touch the PCB. Is there another method? Sorry to sound a bit dumb on that, however I don't have a lot of experience with automated stencil printing, and manual has been working well up to now with this BGA. Regards, Gra
Electronics Forum | Mon Dec 16 21:40:27 EST 2002 | grantp
Hi, Thanks for the info, and I will check it out. Do you know where the IPC 7525 spec is? Does it explain why square is better? I know there is some theory I am missing here, and that's why we have problems. I am just freaking out trying to establi
