Electronics Forum | Thu Nov 15 13:46:28 EST 2001 | Terry Burnette
Underfilling PBGA's will increase the PCB level solder joint life by 4x-5x but we only recommend underfill for products going into extreme environments. Normally the 272ld and 388ld PBGA's solder joints when cycled at -40C to +125C should not see any
Electronics Forum | Fri Dec 08 14:03:52 EST 2000 | Roland
Andrea, There are many good sources for this info. One I suggest can be found at http://www.gii.co.jp/english/ab4031_yy_pcb.html. I hope this helps! Roland
Electronics Forum | Fri Dec 08 17:56:36 EST 2000 | Dave f
Check the fine SMTnet Archives. Some people have a difficult time using the fine Archives, if so, email me and I'll try to help further.
Electronics Forum | Wed Mar 21 16:28:37 EST 2001 | CAL
ED- We can help you. It is our specialty and we are right next door at the Philadelphia Airport. Please touch base with me. Cacdriscoll@aci-corp.org 610-362-1200 x 272 Cal Have I got a machine for you
Electronics Forum | Tue Jul 15 10:36:33 EDT 2003 | davef
Equipment, Sldr pallet * Garland Service Company (972)494-1911 fax 0972 http://www.goGSC.com * Datum Dynamics 207 Highpoint Avenue Portsmouth, RI 02871 401-683-5300 FAX 3995 http://www.datumdynamics.com * EES/Grip Technogies Weston CT 203/226
Electronics Forum | Wed Aug 04 16:09:48 EDT 2004 | Dreamsniper
Hi, Thanks for your reply. I run 2 boards, using the same paste, thermal profile and the same method of aqueous cleaning, 1st is a Topline test board with topline BGA (BGA 272 with 1.27 Pitch) and the 2nd is our product PCB with our BGA from Motoro
Electronics Forum | Fri Dec 08 12:38:51 EST 2000 | Andreas Foehrenbach
Hy all, i'm in need for some data about the electronics market: - general Industry Data of SMT and SMT Assembly - SMT-worlwide Production / Turnover - ratio of THT / SMT - Structure of productions cost (Parts, PCB-Assembly, Final Assembly, Investmen
Electronics Forum | Mon Nov 12 10:57:36 EST 2001 | emmanuel
We are to use a PBGA 272 and a PBGA 388. Between 500 and 750 thermal shocks (-45�C/+125�C), we have noticed that some cracks appear in the solder joints. According to our component specialists, these cracks are due to the whole design (pcb, component
Electronics Forum | Mon May 27 18:16:28 EDT 2002 | Carol Stirling
Hi, I'm looking for Temporary Stencils to assist placement using a Sniper Rework Station. The PBGA is a MPC555 Motorola with 272 pins. The ball map shows 4 populated outer rows, then 16 balls in the centre of an open, unpopulated area. Could I g
Electronics Forum | Thu Mar 29 08:23:02 EST 2001 | CAL
Some AOI manufacturers require you to put in a GOLD PCB. Gold PCB is a perfectly manufactured board - Correct placements, correct polarity, no solder short, a "GOOD" PCB. With the vision limitations of some AOI equipment components that have variatio
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