Electronics Forum | Tue Apr 23 14:30:35 EDT 2019 | scotceltic
I would like to setup a guideline for BGA to components around it minimum distance. To allow for rework possibilities of the BGA. What are people using as a minimum clearance out there ?
Electronics Forum | Thu Apr 25 08:57:55 EDT 2019 | scotceltic
Interesting. Makes it easier on design.
Electronics Forum | Fri Apr 26 08:41:18 EDT 2019 | scotceltic
Thanks for all the replies. It has been helpful.
Electronics Forum | Wed Apr 24 10:57:11 EDT 2019 | scotceltic
Thanks Steve for the candid reply. We would probably end up dealing with the rework in house so that is why I want to make it easy from the get go instead of jumping through hoops like I know a lot of EMS vendors like yourselves have to do for their
Electronics Forum | Fri Apr 26 05:50:54 EDT 2019 | ppcbs
We just apply tacky flux to the surrounding components and to the bottom side components under the BGA. This will prevent cold solder if any solder joints reach reflow temperature the surface tension will keep them aligned and in place. If you nee
Electronics Forum | Thu Apr 25 17:17:44 EDT 2019 | spitkis2
Years ago it was common to see 2-3mm keep out areas around BGAs. Now with boards being so densely populated there are no clearance minimums. Regardless if the machine is using convection or IR heating, parts can be reworked without affecting adjace
Electronics Forum | Thu Apr 25 05:17:08 EDT 2019 | pdrirrework
Hello All, Using IR will mean that there is no minimum distance to the adjacent components as there is not hot air flow. If components are heat sensitive around the BGA you can also tape them off with a reflective tape. The IR heat will bounce strai
Electronics Forum | Wed Apr 24 10:32:26 EDT 2019 | slthomas
Let me preface this just by saying we don't have a spec. for this ourselves since we're an EMS. We just deal with whatever the customer provides. That said, I would think that it would depend on your specific rework machine, the nozzle designs you'r
Electronics Forum | Fri May 18 11:58:47 EDT 2007 | ed_faranda
We're starting to get into BGAs at my company. I have worked with BGA with another company, but that was nearly 10 years ago now. One thing I haven't found is the required clearance around BGA components. Is there a standard for this distance? Wha
Electronics Forum | Mon Aug 22 06:38:21 EDT 2011 | janz
i used to remove one-two columns of the balls leading to the centre of the BGA then slide thermocouple inside. Of course it is highly dependable on your BGA clearance. janz
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