Electronics Forum | Wed Apr 28 22:35:32 EDT 2004 | davef
We can clean the blank out of LARGE BGA. [Cleaning small BGA is a whoooole nuther issue.] But before we get into that, what's the problem and its breadth? Why are you getting poor wetting? What's the story on the components, board, process materia
Electronics Forum | Thu Aug 26 22:32:04 EDT 2004 | Indy
Hey, We have introduced a Cleaning Pen from Chemtronics. It removes excess flux after touch up.. This way the operator doesn't have to go everytime to the cleaning room.. Indy
Electronics Forum | Wed Dec 08 08:38:46 EST 2004 | davef
KS: You're correct. The standoff on a 1.00mm and 1.25mm BGA is high enough to allow cleaning. The standoff on 0.8mm BGA does not allow proper cleaning, even with saponifiers.
Electronics Forum | Wed Dec 15 08:21:11 EST 2004 | pjc
Here are three VOC free chemistry suppliers. Their chemistries will clean no-clean and RMA flux residues: www.zestron.com www.kyzen.com www.envirosense-inc.com
Electronics Forum | Tue Dec 14 08:01:14 EST 2004 | paul_fisher
Our paste is no new we have used it before [Cobar no-clean paste]. The solder joints look like they are bursting out salty looking crystals. Maybe the board cleaning is a red herring in that if the boards are clean it stops this crystalisation travel
Electronics Forum | Mon Apr 11 12:27:49 EDT 2005 | saragorcos
Hi there - I am from the company that owns FinePoint precision cleaning, and we are capable of performing contract cleaning. We would also be happy to help if you need a recommendation on cleaning equipment to purchase. You can call our office at 7
Electronics Forum | Sun Apr 10 21:19:01 EDT 2005 | devilhitam
hi guys, Iam going to run evaluation on DEK 288 underscreen cleaning efficiency. The purpose of this run is to determine the best setting for underscreen cleaning. Could anyone who familiar with DEK 288 share with me you experience on the underscree
Electronics Forum | Tue Jun 07 20:19:31 EDT 2005 | davef
That depends a great deal on what you are cleaning and how clean do you want to get the substrate. We've seen cases where 0.1 uS-cm was insufficiently good and others where 10 uS-cm was more than sufficient.
Electronics Forum | Sat Jun 25 10:04:08 EDT 2005 | ktron
Hi MSK, Stencil thickness: 5mils with laser cut Smallest pitch: 20mils Underscreen cleaning frequency: 10 bds per cleaning Note: We have decreased the cleaning frequency from 10 boards to 3 bds to reduce solder bridging after printing Regards,
Electronics Forum | Mon Jul 18 00:00:35 EDT 2005 | adlsmt
I have nothing to add technically but we have been washing no-clean for years. Use very clean filtered DI water to avoid the white residue issue and some good detergent or sopanifier and you will get great results.
