Electronics Forum | Mon Oct 18 13:17:03 EDT 1999 | John Thorup
Are they visibly "popped" after wave but not before? Remember that many BGAs, especially plastic (PBGA) are very moisture sensitive and even 24 hours or less out of a controlled environment violates exposure rules.
Electronics Forum | Mon Oct 18 11:48:57 EDT 1999 | Dave F
No, but answer me this? 1 What type of BGA? 2 What's the wave process, materials and temps? Are you waving the BGA or top-side flowing it? 3 If the BGA is plastic, what are you doing to prevent/remove entrapped moisture before solder processing?
Electronics Forum | Mon Oct 18 09:41:56 EDT 1999 | Wolfgang Busko
That should not happen. There are some threads concerning BGA and wavesoldering you could look for. It�s said that you should protect the vias in the BGA-area by soldermask or at least with tented vias to prevent rereflow of BGAs solderjoints what co
Electronics Forum | Tue Oct 19 22:27:29 EDT 1999 | Stu Leech
We have just completed some studies of with ABPAC, who is a large subcontract assembler of plastic ball grid arrays. BT laminates can pick-up appreciable moisture in just two hours. They are using TVP demoisturizing, our product (I apologize for the
Electronics Forum | Fri Nov 03 09:59:46 EST 2000 | Mark Krmpotich
Has anybody done an evaluation on Wave Solder Process Control Modules? I am looking at the ECD WaveRIDER or the Wave Solder Optimizer to try and implement process control on our wave soldering operations. Which is better for controlling the process
Electronics Forum | Mon Apr 07 22:07:25 EDT 2003 | davef
It depends on the carbon polymer that the fabricator printed on your board. It could be: * No wave soldering * Wave soldering with a peelable mask * Wave soldering ... probably one of the latter two. Watch it. Some temporary masks can affect the
Electronics Forum | Thu Aug 11 16:16:57 EDT 2005 | pete_d
Can anybody provide any insight to the quality of Manncorp's wave solder machines? I'm looking to go Pb free. I'm also considering Technical Devices wave solder, which is significantly more expensive and NovaStar wave solder machines.