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 | Tue Apr 27 08:14:59 EDT 2004 | iqbal
Is anybody doing BGA soldering water clean solder. If yes how you are ensure cleaness. We have boards with Four BGA and 2000 chip and ICs.We are processing with no clean solder but we are getting bad wetting so now we are planning to switch to water
Electronics Forum | Tue May 19 08:20:10 EDT 2009 | Mity C
Good Morning, We are underfilling some of our BGA's. This is a specified customer requirement. The material we are using is Emerson & Cuming E-1216 (also specified by the customer) The material was selected because of a close CTE match with the PCB.
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 08 05:41:49 EST 2004 | kanwal324
Hello I thind you are same Mr. Scott from whom once i had purchased inspection system in M/s Evershine India. Regarding your query, we want to inform you that we are mounting BGA with water solubel flux (special flux paste) from alpha metals and the
Electronics Forum | Tue Mar 15 09:34:31 EST 2005 | Sandy Kelley
I have been engaged to find an Applications Engineer for an electronic materials division of a worldwide multi-billion dollar diversified international specialty chemical endeavor. My client is a well respected, cutting edge technology leader in un
Electronics Forum | Fri May 17 14:23:34 EDT 2002 | dason_c
I will convinced to change to the no clean process by environmental safe even though clean process is water soluble but it still produce the waste. Also, the BGA is not recommend to clean, if the flux is not completed removed from the board and elec
Electronics Forum | Tue May 21 17:16:51 EDT 2002 | davef
Larry, Yes, no matter how much you�d like to avoid using NC, you probably will have to start using the stuff, if the design [sales, in your case] types have their way. We can clean WS under 1mm and 1.25mm pitch BGA. For 0.8mm pitch BGA, we use NC.
Electronics Forum | Fri May 17 15:50:17 EDT 2002 | davef
Now that�s a switch. Most are moving or properly have moved in the polar opposite direction. Dano, has someone been drilling your teeth lately? We use water washable flux to: * Remove solder balls. [Or put another way, we don�t have to screw-down
Electronics Forum | Tue May 21 12:04:52 EDT 2002 | larryk
Dave, I hear ya on the WS perks. The one thing that got me thinkin' is the BGAs. I've been doing the normal higher stuff with no issues, but sales is starting to get orders for them little buggers. I'm thinking under .8mm, I'm gonna have to think abo
