Electronics Forum: rework micro (Page 1 of 13)

BGA rework profile help

Electronics Forum | Wed Jun 06 09:09:28 EDT 2001 | nwyatt

Help! I have been assigned to take over our current rework machine because the profiles have been changed so often and by so many people that they are now not working consistantly. Nobody has been supporting it for the past 2 years and now I have b

BGA rework and inspection

Electronics Forum | Thu May 30 10:31:03 EDT 2002 | robbied

Hi Yannick. This is an issue that we are just recently getting into but here is some ifo that I have gathered so far. I have seen/ used 2 different rework machines. The one we have bought is a 'PACE TF2000' which was at the lower cost end of the mar

BGA rework profile help

Electronics Forum | Wed Jun 06 13:38:15 EDT 2001 | Michael Parker

To expand on Wolfgangs reply, I suggest you contact your local SRT rep. We recently had the same type of problem as yourself. This is the path we followed. Arrange for operator training, for yourself first, then the operators after you get the machi

Re: Questions regarding rework

Electronics Forum | Tue Dec 08 17:55:51 EST 1998 | Dave F

1. What is the best way to remove polyurethane conformal coating from selected areas? Your conformal coat material supplier is best equipped to tell you how to remove the coating. Polyurethane conformal coating is not easy to remove. Without in-pu

Excess Flux in uBGA rework

Electronics Forum | Mon Sep 24 11:12:56 EDT 2001 | nwyatt

Hi. We are currently using an unconventional method to rework a micro BGA - removing component with hot air, fluxing the area, placing the part with pick and place, then reflowing it in the oven. The reason we are doing it this way and not with a r

BGA rework using Tacky Flux

Electronics Forum | Sat Jan 21 16:36:19 EST 2006 | gipos

Hi James, You can use the same flux for micro BGAs.The 529D we used for rework of high freq. CSPs and even w/out cleaning it still worked on 2.5GHz.We have not washed the flux for 6 months and the RF features of the circuits remain the same. No chan

BGA rework using Tacky Flux

Electronics Forum | Tue Jan 17 11:51:05 EST 2006 | james

What about doing this method on Micro Bgas?

Excess Flux in uBGA rework

Electronics Forum | Tue Sep 25 15:48:34 EDT 2001 | mparker

Scavenge all the old solder off the board and the chip. Micro screen paste to the chip. As far as thickness, check your aspect ratio to determine the spec. Eliminate just one variable at a time to get to the root cause. Start by not using the tacky

Excess Flux in uBGA rework

Electronics Forum | Tue Sep 25 09:56:09 EDT 2001 | nwyatt

Hi, thanks for your input. Yes, we do have a rework station - specifically a SRT Summitt 1000 station, but it causes us many problems and is down more than it's up...I do not think that using it would speed up the process at all. As far as accuracy

Excess Flux in uBGA rework

Electronics Forum | Tue Sep 25 12:50:13 EDT 2001 | mparker

Since you are mostly concerned about the flux and suspect an application issue, you need to do a few things to validate whats going on. 1. Forget about speed of processing, length of time to do the job. Focus on accuracy first, then speed. with that

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