Electronics Forum | Fri Mar 03 11:56:51 EST 2006 | Brad
We have a customer that is transitioning to RoHS compliant assemblies. Their layouts are not changing from the old boards to the compliant ones so the stencils will remain unchanged. They are going through a transition phase where both will be buil
Electronics Forum | Tue Jun 05 16:40:46 EDT 2001 | kerryn
Thanks Phil. However, my objective is to identify stencils that are not 100% clean prior to sending to inventory. I want to catch it before the solder paste has a chance to dry and harden in the apertures. Kerry
Electronics Forum | Tue Jun 05 20:45:54 EDT 2001 | davef
So, yer lookin' to detect a ~25um glob on the wall of the aperture on yer stencil, eh? Why not wash your stencils before you put them away? That's what we do. Give 'em a quick looksee, then rack 'em, if they're clean. Give 'em anudda looksee befo
Electronics Forum | Tue Sep 18 15:35:23 EDT 2001 | jschake
A laser cut stainless steel stencil was used exclusively for the evaluation of the complete 0201 assembly process, which addressed printing, placement, and reflow. However, I have also conducted off-line 0201 print tests using a nickel electroformed
Electronics Forum | Fri Mar 03 13:51:17 EST 2006 | Chunks
We've looked at our stencil under magnification after hand cleaning. There is some paste left behind. Machine washing removes all of the paste. Your best bet is to clean like normal, then look at the aps under magnification. Adjust accordingly (a
Electronics Forum | Fri Jun 04 17:44:20 EDT 2021 | dwl
The hardest part was convincing management of the need for a stencil cleaner in the first place. Cleaning by hand using IPA and a lint free cloth just leads to clogged apertures and print defects. BTW, lint free cloths leave behind a lot of lint.
Electronics Forum | Tue Nov 28 21:16:17 EST 2006 | davef
J Rose at EMPF says: The introduction of no-clean solder fluxes in electronics manufacturing has given rise to greater levels of solder balling simply because the opportunity to remove them in the wash process does not exist. They are typically cause
Electronics Forum | Fri Jun 04 17:47:34 EDT 2021 | pjchonis
Thank you very much for your insights! I appreciate your time.
Electronics Forum | Thu May 30 10:31:03 EDT 2002 | robbied
Hi Yannick. This is an issue that we are just recently getting into but here is some ifo that I have gathered so far. I have seen/ used 2 different rework machines. The one we have bought is a 'PACE TF2000' which was at the lower cost end of the mar
Electronics Forum | Fri Jun 04 14:35:39 EDT 2021 | pjchonis
Hello everyone, I am just curious if anyone has any common problems when using Kyzen or Zestron? Why did you initially choose to use one of their products in the first place? In your opinion, what are the pros and cons? I would love to know your tho
