Electronics Forum: pbga (Page 7 of 29)

No Clean stencil design

Electronics Forum | Mon May 15 15:42:29 EDT 2000 | Doug Smith

Can anyone tell me a recomended stencil apt. design for PBGA's and Ceramic BGA's when using a no clean (UP78) paste?

MPA-V or IIIF Users?

Electronics Forum | Sat Mar 03 09:48:27 EST 2001 | ghenning

Considering putting one of these into production. Any comments as to reliability, accuracy, programming ease, etc. greatly appreciated. Targeting small discretes (e.g. 0402), PBGA, CSP, & QFP (to 16 mil) Thanks in advance...

BGA short at same spot after few time rework.

Electronics Forum | Wed May 02 01:09:25 EDT 2001 | Carlos A. Gutierrez

I�m looking for information about who has a service for reworks or reattachments PBGA chips in Mexico How can i found it? Thanks a lot

BGA footprint on PCB

Electronics Forum | Thu Jul 05 01:45:02 EDT 2001 | Brian Sloth Bentzen

Yes, the solder pad on the PCB should match the pad on the part. This will minimize stress during the soldering process�. Check out more on http://www.smtinfocus.com/papers_pbga.html Here you will fond some more informations on the process used in r

Re: Popcorning BGA in wave-soldering

Electronics Forum | Mon Oct 18 13:17:03 EDT 1999 | John Thorup

Are they visibly "popped" after wave but not before? Remember that many BGAs, especially plastic (PBGA) are very moisture sensitive and even 24 hours or less out of a controlled environment violates exposure rules.

Solder Paste volume w/reliability data.

Electronics Forum | Tue Jul 27 13:01:06 EDT 1999 | Mike Laroe

Looking for solder paste specification limits which have reliability data to support them. Currently, we are looking to define the min/max volume necessary to ensure a good joint on CBGA, PBGA, and Micro-BGA's. Any information will be greatly appre

BGA rework

Electronics Forum | Thu Jan 21 19:43:16 EST 1999 | Ron Costa

What are the problems related to cleaning when using OA tacky flux to replace a PBGA. Will your standard inline cleaner be able to reach all the way under to clean all residue? BGA type is 1.27mm pitch .030 dia. ball plastic. Any info helpful! Thank

Shot in the dark BGA 560 ?

Electronics Forum | Tue Dec 01 12:12:07 EST 1998 | Mike

I am looking for a few PBGA 560 1.27 pitch Components. If anybody has any lying around I could buy. So that I may profile to my hearts content. Thanks Mike Cox

uBGA

Electronics Forum | Fri Oct 16 09:46:32 EDT 1998 | Bob barr

I need the following information on uBGA's - body size, ball pitch and ball diameter. Are they a plastic package (with the resulting moisture sensitivity of a PBGA)? Also, does the uBGA put any special requirements on pick and place equipment? Tha

What pressure is recommended to clean AMT boards after reflow

Electronics Forum | Mon Sep 10 12:51:25 EDT 2001 | Carol Stirling

That's my Typo... couldn't figure out how to fix it. It should read SMT -boards with lots of SMT parts, including PBGA. I'll be more specific next time.... Thanks for the replies.. Carol


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