Electronics Forum: bga to pga (Page 2 of 27)

Collapsing of micro bga ball due to improper land pad design ?

Electronics Forum | Mon Aug 25 10:36:05 EDT 2008 | davef

Yes, it's peculiar that the layout of this board is so disorganized * Pads are not round, uniform, or the same size * Exposed traces have different thickness

Collapsing of micro bga ball due to improper land pad design ?

Electronics Forum | Wed Aug 27 00:20:38 EDT 2008 | rameshr

Dear davef, Will u pls advice what are all the possible defects caused while soldering ( assembling ) this type of boards.

Collapsing of micro bga ball due to improper land pad design ?

Electronics Forum | Wed Aug 27 08:25:24 EDT 2008 | davef

We'd expect to see: * Solder starved connections at pads with large trace/pad areas. * Less reliable solder connections at pads that do not match the shape and size of the corresponding pads on the component.

I want to learn about bga technology from a pick and place mache

Electronics Forum | Wed Jul 14 16:10:07 EDT 2010 | malcolmlanders

I can't access these web pages do I have to log in somewhere

I want to learn about bga technology from a pick and place mache

Electronics Forum | Wed Jul 14 16:59:52 EDT 2010 | swag

Solder paste on the pads will keep part aligned. If you do not use paste, you will need to apply tacky flux. You should not run without one or the other.

I want to learn about bga technology from a pick and place mache

Electronics Forum | Fri Jul 23 03:11:50 EDT 2010 | cobar

http://www.shanelo.co.za/SMD%20Assist.htm

I want to learn about bga technology from a pick and place mache

Electronics Forum | Fri Mar 18 14:15:35 EDT 2011 | floydf

I found it over here: http://cache.freescale.com/files/archives/doc/app_note/AN1231.pdf?fsrch=1&sr=2

PLCC to PGA Adapter

Electronics Forum | Fri Jun 04 14:55:03 EDT 2004 | pjc

http://www.adapter-tech.com/

PLCC to PGA Adapter

Electronics Forum | Fri Jun 04 13:33:48 EDT 2004 | Jason Harvey

I am looking for a very reliable PLCC to PGA adapter. We are currently attemping to replace PLCC sockets with soldered adapters for an industrial customer. If anyone uses these adapters, can you recommend a manufacturer or share your experience (go

PLCC to PGA Adapter

Electronics Forum | Fri Jun 04 14:44:00 EDT 2004 | davef

Here's some adapter suppliers: http://www.smtnet.com/forums/Index.cfm?CFApp=1&Message_ID=20714


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