Electronics Forum | Tue May 19 06:57:33 EDT 2009 | cunningham
whats the reason for the underfill? we dont underfill any of our BGAs rework could be a issue if they need to be replaced? tried DP190?
Electronics Forum | Wed Jul 01 18:49:27 EDT 2009 | stevenlimth
1smtdude, I interested in your explaination of re-work an underfill part. You mention the material can be heated to a plastic state to become vicious... do you know usually what range is the temperate? (guess it can depend on the type/manufacturer o
Electronics Forum | Fri May 22 15:37:23 EDT 2009 | 1smtdude
Depending on the material chosen, it's possible to �rework� underfilled components. However, it's far from a production process. Two steps are usually required. First: remove the package from the PCB. Second: remove the residual underfill from the P
Electronics Forum | Wed Jul 15 12:31:20 EDT 2009 | rwyman
Depending on the end use of the PCB, edge or corner bonding may be adequate. Much easier to rework as the material is only at the perimeter of the part. We don't do underfill of any degree in-house but a few years ago we did build a limited run of
Electronics Forum | Thu Nov 12 16:22:45 EST 1998 | Mike Cox
Any info on a BGA rework machine in the 10-20K range. Thanks Mike C
Electronics Forum | Sun Mar 07 19:58:03 EST 2004 | praveen
Hello , Can any body help in solving the problem of PCB warpage during BGA rework. I am using IR heating system. No problem found in reworking BGA's size less than 30mmx30mm but for 35 mmx35mm and above BGA get solder short due to PCB warpage. Note
Electronics Forum | Mon Mar 19 06:05:16 EDT 2007 | chrissieneale
Hello - what's coming up as the top reason for BGA rework? Are there more handeling issues than actual problems with SMT placement / rework? Sorry it's a really general question, but i'm after some really general answers. :) Chrissie
Electronics Forum | Thu Apr 22 11:59:36 EDT 2004 | Daniel
What is the best rework equipment on the market for BGA's and the pro and cons of others?
Electronics Forum | Tue Mar 20 05:26:32 EDT 2007 | CL
Hi Chrissie, BGA Rework from one CM's view: 10% process problem (printing, reflow, voids, etc) 10% component failure (no other problem found) 80% "The board does not work therefore it must be the BGA" This, of course, is exaggerated. My point bein
Electronics Forum | Tue Feb 20 10:47:19 EST 2001 | Massimo
Hi everybody, I need to collect some documentation about BGA rework, in particular I wolud like to know if there are some "theoretical" studies about this matter (for example a finite element model of a BGA suitable to be used to simulate BGA reflow)
