Electronics Forum | Mon Sep 22 04:59:10 EDT 2008 | fadzil66
I have concern about cleaning solder ball after misprinting paste on PCB, currently use vigon 200 with ultrasonic generate but only 70% solder ball able to remove, Any other method or equipment can help to clean solder ball.
Electronics Forum | Tue Sep 23 20:56:08 EDT 2008 | davef
For additional information, download IPC-7526 - Stencil and Misprinted Board Cleaning Handbook http://www.ipc.org/html/IPC-7526.pdf
Electronics Forum | Tue Sep 23 07:27:31 EDT 2008 | realchunks
Do not wipe the board at first before putting it in your cleaner. It will leave more paste in your tank, but you won't smear it into every corner of your solder resist. We found that only our stencil cleaner would clean a board properly and leave n
Electronics Forum | Tue Sep 23 14:13:29 EDT 2008 | slthomas
In piggy back on Chunks' comments, what you might wipe it with can be the problem. Alcohol absorbed by the solder paste inhibits the effectiveness of some cleaning chemistries, and driving it into the nooks and crannies exacerbates the problem. If
Electronics Forum | Thu Jun 25 11:11:13 EDT 2009 | bruna
Hello, I want to hear some experience about selective soldering for PCB using nozzle plate and screens Do you have solder defects? bridges and insufficient soldering? How do you combat that? and about the screens you have good quality? What is the f
Electronics Forum | Fri May 29 14:22:27 EDT 1998 | Chrys
| Does anyone out there can let me know how to clean a Entek Coating Board if I have a misprint during solder paste printing? According to the guys at Enthone, squeegee most of the paste off, then use Kyzen Lonox (which only removes 3% of the coating
Electronics Forum | Mon Jul 16 21:44:07 EDT 2001 | davef
You�re correct. If you attach $5 to each board, your customer will be happy to approve your process change. Consider: �Process Improvement Strategies: Implementation Of A No-Clean Process" http://www.smta.org/knowledge/proceedings_abstract.cfm?PRO
Electronics Forum | Thu Jan 29 09:18:36 EST 2015 | davef
Nichrome, manganin, phosphor bronze etc are easy to solder ... the hard part is removing the corrosion * Manganin: 86% copper, 12% manganese, 2% nickel. Often, it's used in making cryogenic measurements, due to its low heat loss. * Select a flux for
Electronics Forum | Tue Mar 09 07:51:12 EST 2004 | Bryan
Hello everyone: 1.I use Kester R244 63/37 solder paste. 2.Stencil thickness 6 mil. 3.Springdale Chipset. 4.PCB finish:HASL 5.Profile:Peak temp.:210~220C,time above 183C:60~90 seconds,time between 150~183C 60~90 seconds. 6.Reflow oven:Heller 1800 Voi
Electronics Forum | Mon Oct 19 07:39:15 EDT 2009 | m_imtiaz
Hi, We are facing solder ball problem in manual soldering process (between wire and terminal). we are using no-clean solder (63:37)and temperature setting in iron is around 400 Cel. Can any one suggest me how to solve this problem Any thoughts would
