Electronics Forum | Thu Apr 07 19:17:43 EDT 2022 | cbart
Good afternoon The ISI I was mentioning is interconnections solutions which is a division of Molex. a few years back we ran into a component end of life situation but had thousands of very high dollar bare boards in stock. the package was a BGA and w
Electronics Forum | Thu Jun 07 15:37:32 EDT 2001 | Claude_Couture
Kerryn, It's the first time I hear someone who needs an automated inspection machine to check the cleanliness of stencils. Why not improve on the cleaning method itself. I use ultrasonic batch cleaner. It takes 3 minutes to clean a stencil, 2 minutes
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 | Wed Jun 06 21:19:41 EDT 2001 | davef
Consider running two sets of stencils and washing every four hours.
Electronics Forum | Mon Sep 17 09:35:08 EDT 2001 | floydl
Based on your research, what is the pad and stencil design that you recommend for 0201 assembly?
Electronics Forum | Thu Jun 07 13:40:12 EDT 2001 | kerryn
Dave, We have very short runs (less than one hour). We have stencils all over the place waiting to be cleaned. It is too time consuming to scope each stencil to inspect for cleanliness. Do you know of any automated or scanning devices that can ra
Electronics Forum | Fri Mar 03 14:40:22 EST 2006 | amol_kane
i think a more important issue here would be the reduction ratio. as LF solders have a higher surface tension, they do not flow as well as their leaded counterparts. therefore the stencil design may have to be changed (hence a new stencil) if the red
Electronics Forum | Tue Jun 05 13:23:27 EDT 2001 | kerryn
We are a high-mix/low-volume operation and end up cleaning 40 - 50 stencils per day. Does anybody know of an automated inspection system or "scanner" that can check a stencil for cleanliness?
Electronics Forum | Mon Mar 06 12:09:20 EST 2006 | muse95
Our CMs require a new stencil to be purchased, even if it is no different, or else sign a waiver. We purchased a new stencil.
Electronics Forum | Thu Mar 25 09:38:36 EDT 2021 | spoiltforchoice
Well everything Graham said with some additional points.. You mention manual printing but very little about your stencil or setup. Everything you have said indicates a very limited budget has been expended, however what you have is an extreme exampl
