Electronics Forum: clearance (Page 1 of 27)

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 | 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 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

component to scored edge clearance

Electronics Forum | Mon Jun 20 04:21:04 EDT 2005 | alex

What is the ideal component edge to board scored edge clearance?

edge clearance for inline equipment

Electronics Forum | Wed Oct 01 23:40:38 EDT 2003 | bradlanger

I was wondering if anybody could tell me what a good clearance would be for board designs to allow for the use of inline equipment? My company currently runs a batch line but I want to make sure we are designing properly for inline if the need arises

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