Electronics Forum | Thu Oct 24 06:01:16 EDT 2002 | Kent
I'm currently dealing with an design of an end effector that need to pick n place a BGA dead bug package. The design is using peumatic system to do the task. Any advise or suggestion on this kind of design?
Electronics Forum | Wed Jun 09 02:35:10 EDT 2004 | Bernard
Base on the PORON foam rubber recommended, is it possible to apply on small BGA chip of 4x4 ball size 0.3mm. Any specific part no and supplier for this type of foam and is it a anti-static material? Would it be possible to punch out at dia. 3mm?
Electronics Forum | Tue Oct 29 05:22:38 EST 2002 | kent
Thankyou very much for the information. Another question, what are the difficulty of dealing with the larger ball and tighter pitch? What is size of the ball is consider large and how far the distance for pitch is consider tight? Currently I have
Electronics Forum | Wed Oct 30 09:43:01 EST 2002 | gregp
Larger tighter spaced balls will present a problem in sealing the vacuum cup. There will be more leakage in this case. It really depends upon the application. The BGA you mention should not be a major concern. The bigger problems are with bigger
Electronics Forum | Fri Jun 18 11:31:17 EDT 2004 | gregp
I think it depends on the thickness of the PORON sheet. For .3mm balls you could probably get away with a pretty thin sheet (maybe 1/16"). I don't know how thin it comes offhand. For the part you are describing I woulf try maybe a 3.5mm OD and a 1
Electronics Forum | Mon Oct 28 09:48:10 EST 2002 | gregp
If I understand correctly you want to pick BGAs from the ball side using some type of vacuum arrangement. You will find that the reliability of this is dependant on the size of the balls and the pitch. The larger the balls and tighter the pitch, th
Electronics Forum | Mon Jul 19 13:21:42 EDT 2004 | gregp
Frank, Do a search on "dead bug" and you will get all the threads. Good Luck, Greg
Electronics Forum | Fri Nov 08 09:35:37 EST 2002 | dphilbrick
ESD safe and conductive are 2 totaly different situations. There are ESD safe carpets but I don't think I have seen coductive carpet. For heel straps to work in a carpeted area it would have to be conductive. Don't get the 2 mixed up it can cause dea
Electronics Forum | Mon Jul 19 12:57:59 EDT 2004 | Frank
Awhile back there was a thread here about needing to pick a BGA-type component that is dead-bug (ball-side up). The OP was looking for a special nozzle tip that will conform around the balls in order to pick the component. There were a few response
Electronics Forum | Thu Mar 31 12:13:28 EDT 2022 | cbart
That is a tough one because of package size I agree, as noted previously it would be good to know what the current PCB pad layout is. first thought does go right to an adapter board of course! is this a volume build or just 20-50 pcs? dead bug and ha
.gif)
