Electronics Forum | Fri Jun 08 07:52:13 EDT 2007 | zanolli
We are looking at a specialized method of direct soldering ceramic circuit modules (maybe 40mm square) to a mother board with solder joints on only 2 of the 4 sides. These modules would be oriented horizontally, or mezzanine like, to the mother board
Electronics Forum | Thu Sep 07 03:57:39 EDT 2000 | Steven Cheung
Does anyone know of a freely-available document which discusses the main considerations of BGA assembly and inspection (x-ray?). l need to know about pad sizes and inspection standards and when to underfill and when not to etc.. l am looking at ass
Electronics Forum | Thu Sep 07 15:24:29 EDT 2000 | Murad Kurwa
Steven, Try http://www.document-center.com/home. You will find various standards for BGAs freely-available but not for free. BTW, I have never seen a BGA underfilled. Only FC and CSPs. The standards available will explain when to.....High CTE delta
Electronics Forum | Fri Apr 22 00:42:42 EDT 2022 | signia_hearing
Hi Anyone aware of any AOI machine that capable of inspection underfill fillet before curing. regards
Electronics Forum | Mon May 28 07:30:52 EDT 2001 | bobwillis
Here is a draft visual inspection guide for underfill, please pass this on to the relevant people for any comments or suggestions. I am currently working on the pictures to go with the reference guide. Flip Chip/uBGA Underfill Visual Standards The
Electronics Forum | Tue Apr 26 16:56:23 EDT 2005 | stepheniii
Is anyone using any NanoStar components from TI? It looks like we might be building boards with some soon. We have put down 0201's successfully. But these are a whole other ballgame. They are 0.9mm by 1.4mm with 5 or 6 balls on the bottom. Would thi
Electronics Forum | Thu May 31 10:21:16 EDT 2001 | davef
On "Flip Chip/uBGA Under-fill Visual Standards" � The third "Satisfactory" [The under-fill if by design should be visible � ], here the notation "if by design" is unclear. Does "according to product documentation" get to the point? The first "Acc
Electronics Forum | Tue Jun 05 03:56:52 EDT 2001 | JohnW
Flip Chip/uBGA Underfill Visual Standards The aim of this document is to produce some draft text and then select photographs to make up a draft visual standard for inspection. There is also a need to produce some reference material for C Scan image
Electronics Forum | Fri Dec 07 09:54:05 EST 2012 | davef
Try MIL-STD-883 Method 2017 Die inspection service providers may be willing to help Services, Die inspection * Amkor amkor.com * Syagrus Systems syagrussystems.com SMTA has published a lot of papers that track to 'die' & 'inspection' but most oft
Electronics Forum | Fri Jul 16 14:05:04 EDT 1999 | Jim Blankenhorn
| | | Hi all , | | | | | | We are trying to implement the micro-BGA technology at our plant. I need the clarification to the following points: | | | | | | 1. Is underfill required for micro-BGAs? | | | | | | 2. What type of stencil apertures are t
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