Electronics Forum | Tue Jun 11 14:16:03 EDT 2013 | bandjwet
We are involved in a project for microBGA SAC rework. The pitch is 0.4mm and the devices are underfilled (softening 150C). The underfill comes off fairly easily but the pressure underneath the package as the underfill softens pushes up on the undersi
Electronics Forum | Tue Jun 11 14:21:35 EDT 2013 | bandjwet
We are involved in a project for microBGA SAC rework. The pitch is 0.4mm and the devices are underfilled (softening 150C). The underfill comes off fairly easily but the pressure underneath the package as the underfill softens pushes up on the undersi
Electronics Forum | Wed Jan 19 08:44:05 EST 2000 | Rob Douglass
I would like to hear any feedback (good or bad) about the OK Industries BGA-2000 Series BGA and Fine Pitch Rework System. I was not part of the selection process for this machine and my initial opinion is that this unit may be "under-powered". Loo
Electronics Forum | Mon Dec 05 21:49:07 EST 2005 | davef
Methods for reballing BGA are: * Reballing preforms [SolderQuik BGA Preform winslowautomation.com ] * Reballing screens [marketed by many including: Mini Micro Stencil, Pace, Topline]
Electronics Forum | Fri Aug 25 12:53:58 EDT 2006 | CL
We use "tacky flux" for most BGA replacements. We have found that we sometimes need a microstencil for paste on Micro BGA's. CL
Electronics Forum | Tue Mar 30 07:34:46 EST 2004 | TONY
We are running double side micro bga boards and we were told to run one side, wash them, put them in the oven at 125c for 1 hour and putting them in the dry cabinet until we run the other side. Is this necessary? It is time consuming for us to wait
Electronics Forum | Tue Nov 04 04:00:38 EST 2008 | Martin
Hi All, Anybody knows good, repetable method of dispensing flux for micro BGA rework? 6x6 mm(0.5 mm pitch) The flux dispensing amount by brush may vary depending on operator etc. If operator dispense too much flux the BGA "swim".Around the BGA compon
Electronics Forum | Tue Sep 14 07:54:05 EDT 2004 | modwyer
Folks, At the moment I bake all BGA that are in unsealed trays, to reduce moisture etc. Is this common practice or are there particular manufacturuers that cause more problems. Also, the tape for BGA tape & reel has a hole in the tape (as is normal
Electronics Forum | Wed Aug 04 11:57:33 EDT 1999 | David Lynch
Drawing from my experience with Amistar's PlacePro 7100, here's a bit of additional info and comment on previous postings... - The 6-head PlacePro 7100 is an INCREDIBLE memory machine and is equally capable as a line balancer. As a fine-pitch placer
Electronics Forum | Wed Jun 06 16:51:06 EDT 2001 | jax
Unless your placing micro-bga, board edge fiducials on alternating corners will provide more than enough placement correction ( Micro-bga's should also be fine depending on how your equipment maps the board ). The part data and vision recognition nee
