Electronics Forum | Thu Feb 11 15:07:49 EST 2010 | hegemon
With regards to the rework, size and mass of the PCBs is important, in addition to the size of the components that are to be reworked. You might be in the game with $6K (APE Chipmaster Hot Air machine with Preheater or similar setup) if you have sma
Electronics Forum | Tue Feb 09 13:47:46 EST 2010 | davef
BGA rework equipment: Search the fine SMTnet Archives to find threads like: http://www.smtnet.com/Forums/Index.cfm?CFApp=1&Message_ID=48736 Use x-ray inspection to identify the obvious defects such as shorts, missing balls and gross solder voids.
Electronics Forum | Wed Feb 24 22:11:22 EST 1999 | E. Coli
Looking for a few good seminars here on the east coast (NY, NJ, PA, etc) on the topic of BGA's, BGA Repair and Rework, etc. Any suggestions ?? Thanks.
Electronics Forum | Mon Dec 20 14:44:30 EST 2004 | JohnS
I had identical issue with CBGA's. I also found stress fractures at the sphere/substrate interconnect. The supplier had data to support their acceptability but we persisted and they reworked them,
Electronics Forum | Fri Nov 14 07:32:24 EST 2008 | davef
Yes, courtyard gives you the space requirement of a component. Sometimes, the working space of a rework tool takes precidence, though.
Electronics Forum | Fri May 06 08:47:05 EDT 2016 | davef
You're correct. This design will have a record amount of 0402 rework for tombstoning and misalignments. Suggest that the pads on each end of all components be the same size in order to balance wetting forces during reflow.
Electronics Forum | Thu Jan 21 09:27:33 EST 1999 | Earl Moon
Hello, I will be evaluating and qualifying two equipment types. The first is a fountain soldering device. I need practical advice on all the stuff you guys and gals know about as good, bad, ugly, best applications, setup, limitations, and all the re
Electronics Forum | Fri Jan 17 16:36:04 EST 2003 | MA/NY DDave
Hi As DaveF notes there are many sources. In one of my lives, I used to generate this business for one of the really good outfits i.e NTCu in Bethlehem, PA and I know of several more. You probably already get NTCu's mailing if you have been in the
Electronics Forum | Fri Jun 08 18:27:03 EDT 2007 | jmelson
This is probably an inner plated layer of the component that did not bond well. It may be a component that either has the wrong surface finish for lead-free or can't handle the temperatures. Many times I have seen a similar-looking layer when the l
Electronics Forum | Mon Sep 04 10:15:41 EDT 2023 | tommy_magyar
As far as I can remember, these always arrived in flexible plastic trays. The trays we designed were made of Durastone. The parts were then transferred at a tape & reel facility from tray to tray every 1000x connectors. If these are high volume for
