Electronics Forum | Wed Jun 21 18:51:34 EDT 2000 | John
What is the most likely causes of shorts in the corners of BGA devices?. Is there a method of removing single shorts without removing the device?. John.
Electronics Forum | Mon May 28 17:43:33 EDT 2001 | davef
Does this device have a integral heat sink / metal slug on top, like a TI TM320C6XXX er a Altera EP20K4XX? Compare the size of the pads on the interposer and the board. Compare the type solder mask [NSMD vs SMD] on the interposer and the board. Wh
Electronics Forum | Fri Oct 27 08:53:25 EDT 2006 | russ
I thjink you should bake these parts for 24 hours at 125C I used to have this problem and I even think it was the same package to be honest. Since we started baking all BGAs for rework process regardless of "condition of storage" we have increased
Electronics Forum | Wed Jan 14 18:33:21 EST 2004 | ex maintain leader
qfp tray one corner on the holder is 45 degree cutted there is the pin 1 bga also one corner is different in the tray at tape packaging I'm not sure, I have seen diferent comissions belong supliers
Electronics Forum | Fri May 04 18:27:34 EDT 2001 | chpark
BGA warpage combined with PCB warpage can lead significant process yield loss. First, it is possible that major portion of BGA's apparent warpage is, in fact, coming from the PCB warpage. Assuming that the warpage is solely from BGA itself, I think
Electronics Forum | Mon Dec 22 22:05:42 EST 2014 | slouis2014
What could be the possible solution for shorted BGA but only appears on the component corners. The BGA is 18mm x 18mm in size.The component solder balls are within specs and the pad design for the BGA is with standard. How can I solve this problem
Electronics Forum | Thu Oct 13 10:44:18 EDT 2011 | spitkis2
Have you considered adding adhesive / epoxy at the corners of the BGA to secure it in place?
Electronics Forum | Fri Jun 14 14:29:22 EDT 2002 | davef
Russ makes good points. Search the archives for: * Links to rework machine profiles. * Discussion on people causing corner shorts on their BGA, when heating them too rapidly, making the corners to curl like potato [potatoe?] chips.
Electronics Forum | Fri Aug 22 14:38:21 EDT 2003 | russ
Please search the archives, there is a ton of stuff on this. Russ
Electronics Forum | Fri Aug 22 09:50:20 EDT 2003 | Mike Snider
I am placing a plastic Cypress, 256 pin BGA on a small assembly, and I cannot stop the corners from bowing. I've moved my profile up and down with no results. Any suggestions?
