Electronics Forum: cfm (Page 2076 of 7890)

BGA testing - Xray

Electronics Forum | Thu Jul 07 16:43:23 EDT 2005 | jam

We are starting to use high count BGAs (512). Is there an industry standard on how to inspect the BGAs. Should all BGAs be inspected with Xray equipment or is there other solutions? Thank you

Wave soldering

Electronics Forum | Fri Jul 08 04:54:13 EDT 2005 | bbudianu

Hi all, What kind of flux and solder is suitable for a EPK Gold wave soldering machine. Again, good results and best prices needed. Thank you all.

Wave soldering

Electronics Forum | Fri Jul 08 07:17:15 EDT 2005 | davef

There are no bargans in soldering. Talk to a reputable supplier. Based on your product, you need to decide: * Type of flux * Solder alloy

PPM Level of SMT

Electronics Forum | Fri Jul 08 05:10:55 EDT 2005 | luth

Hi Please anybody can give me the typical PPM level data of surface mount output ie after reflow. We have Yamaha pick and place machine. Like 500PPM, 1000PPM. Thanks.

BGA on both Top and Bottom

Electronics Forum | Fri Jul 08 18:48:50 EDT 2005 | mdang

Hi, We are a Contract Manufacturing and have a project which has a few Xilinx BGA on top and bottom side. Does anyone run a cross this or have any suggestion on how to reflow them. Thank you, -Michael

BGA on both Top and Bottom

Electronics Forum | Wed Jul 13 16:51:28 EDT 2005 | KT

we do it all the time. We havent had any problems with the BGA's. But, you dont want BGA right beneath another BGA.

BGA on both Top and Bottom

Electronics Forum | Thu Jul 14 15:20:15 EDT 2005 | Erik

Putting on the BGAs are relatively easy, it's the X-ray inspection of BGAs on both sides that can get tricky.

How to remove paint from back of PCB without damaging ?

Electronics Forum | Mon Jul 11 11:00:05 EDT 2005 | mmjm_1099

Alcohol and a scrub brush or try some 440R (http://www.smartsonic.com/). This stuff cleans almost anything off.

ESD question

Electronics Forum | Mon Jul 11 13:10:15 EDT 2005 | Vic

Does anyone knows if usage of plastic trash bags inside trash bins can effect static charge accumulation. And is it preferable not to use such bags to minimize charge. Thank you Vic

ESD question

Electronics Forum | Tue Jul 12 10:26:50 EDT 2005 | rlackey

That's alright, we'll be too busy laying on the beach to care, due to the "improvement" in the environment thanks to Mr George Kyoto Bush.


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