Electronics Forum: ersascope

BGA rework clearance

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 ?

BGA rework clearance

Electronics Forum | Thu Apr 25 08:57:55 EDT 2019 | scotceltic

Interesting. Makes it easier on design.

BGA rework clearance

Electronics Forum | Fri Apr 26 08:41:18 EDT 2019 | scotceltic

Thanks for all the replies. It has been helpful.

BGA rework clearance

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

BGA rework clearance

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

BGA rework clearance

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

BGA rework clearance

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

BGA rework clearance

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

BGA Clearance

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

BGA APATURE

Electronics Forum | Wed Nov 05 13:43:52 EST 2003 | swagner

I just did a bga job with square aperture's, the reasoning is for enhanced print release and additional paste volume. Be careful of the edge to edge clearance between the stencil openings, I don't recommend going below a 8 mil clearance, you could b

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