Electronics Forum | Thu Sep 13 13:04:52 EDT 2018 | jrs192
Hello! Recently started buying PCBs with peelable mask to remove the need for Kapton tape. Had no issues with our first batch, but our supplier has over-cured the second batch - it comes off in tiny bits, and is stuck in the holes. After timing the
Electronics Forum | Thu Sep 06 17:37:05 EDT 2007 | hakerem
Hi Joris - There is an excellent wave solder guide called "Take No Prisoners" that includes instructions for attacking and eliminating solder balls and preventing their recurrence: 1. Increase Dwell Time Solder balls are normally caused by too much f
Electronics Forum | Mon May 18 22:15:20 EDT 1998 | Steve Gregory
Howdy Richard, Welcome to the club! I now dub thee a full fledged member of the "Spotty Gold Finger and Bleeding Ulcer Society"...or SGFBUS for short... (GRIN) I know it's not funny to be in that position, but there's so many different places to pick
Electronics Forum | Tue May 19 10:23:06 EDT 1998 | Mike C
| Howdy Richard, | Welcome to the club! I now dub thee a full fledged member of the "Spotty Gold Finger and Bleeding Ulcer Society"...or SGFBUS for short... (GRIN) | I know it's not funny to be in that position, but there's so many different places t
Electronics Forum | Mon Feb 01 09:17:45 EST 2016 | spoiltforchoice
You can buy an awful lot of stencils for $200K > but where/how are you going to store all of those > stencils? There is a certain $$$ value to all > the space it will take to store them. > > I have > been told by a Mycronic salesman that they a
Electronics Forum | Mon Jan 19 20:01:11 EST 1998 | Steve Gregory
| We use no clean paste and sometimes experience | flux splattering which gives spot on gold fingers. | Need help in analize the cause. thx. Dominic, That is STILL a problem huh? It's a tough one to solve sometimes...especially when you have as
Electronics Forum | Wed Jun 05 15:09:44 EDT 2002 | cyber_wolf
I have seen this happen before it has been my experience that even one tiny sphere of solder form your solder paste will melt and spread out on your gold fingers. The particles are so small that they are not visible to the naked eye. If operators ha
Electronics Forum | Wed Aug 07 13:46:18 EDT 2019 | tey422
I have a question regarding is there any trick/tip able to quickly identify if a component is not clean/washable? Or a list of mfg p/n which already know are not clean/wash? We have an assembly would need to change the process from No-Clean to Clean
Electronics Forum | Thu Sep 24 07:37:32 EDT 1998 | Earl Moon
| | All y'all, | | We use two methods to secure/stake jumper wires to boards: | | 1 Jumper wires that "magically" bond themselves when heated with a "U" shaped tip on a soldering iron. | | 2 Loctite 382 Tak Pak | | We use Tak Pak "99&44/100ths" more
Electronics Forum | Thu Mar 01 10:46:11 EST 2001 | davef
Various lint free stencil wipe suppliers take various approaches to stencil cleaning. For instance ... Techspray Directions: Start with a dry TechClean Wipe (2358, 2361, or 2362) to remove excess solder pastes. Follow this with the 1608 Pre-Saturat
