Electronics Forum: check (Page 71 of 631)

BGA dropping off underside of board

Electronics Forum | Mon Aug 13 10:00:18 EDT 2007 | ed_faranda

Might want to check to see if the weight of your part has increased. If it has increased, you may not have enough surface tension to hold the part on the board. I am assuming you already checked that the component isn't getting hit by something in

Stencil Printing No lead

Electronics Forum | Wed Aug 22 11:58:11 EDT 2007 | ev

Thanks for all responses really good feedback. I have placed a number of extra supports underneath each pcb in the panel and by checking each print diligently we seem to be able to keep running. Not feaseable at the moment to check out leaded paste o

BTU VIP 98 Problem

Electronics Forum | Tue Oct 02 07:48:16 EDT 2007 | brendansales

Hi there, Does your computer has a product key (USB) by any chance? there are some units that requires a USB key. alternatively you can check if the controller has been opened before (you can check if the sticker has been torn), or you can try swit

Solder wick on Ag/Pd termination

Electronics Forum | Mon Oct 22 21:34:36 EDT 2007 | davef

Double check on this, but we have this little voice in our heads telling us that your AgPd termination is intended for conductive adhesive applications. Check with your component supplier. We recall a thread on SMTnet [ http://www.smtnet.com/forums

BGAs not reflowing??

Electronics Forum | Tue Nov 06 11:46:38 EST 2007 | aj

Hi Tony, You should search the archives as there is a lot of threads on this topic. A couple of quick checks - 1 - Are you running a Leadfree Process ( if you are not Leadfree maybe the BGA is ? ) 2 - Check your reflow profile is hitting all the

QFN soldering

Electronics Forum | Fri Nov 09 10:58:03 EST 2007 | devajj

Best I can tell (Factory is in Mexico) is no solder from paste print. I'm ordering e-fab type stencils for them hoping to get better release. Also mandating they clean after each print, rotate their paste to keep it fresh, do LSM checks each hour f

Stencil Storage Solutions

Electronics Forum | Sat Jan 19 07:06:40 EST 2008 | jdumont

Check stanley supply and techni tool. They have rack with no doors but you could prob fab something up. 8020 stuff isnt cheap either. I bet it would cost about 400+ to build a stencil rack plus all the labor and thinking involved. That being said, I

Dek Horizon 03i

Electronics Forum | Thu Mar 06 09:19:53 EST 2008 | d0min0

Two way to check a HardDisk: 1. run a dedicated software check (each brand should have one soft) or run a test-benchmark that You can easily find on web 2. make "ghost" image of HD and then replace a HD with same size (GB) and put the image on new on

ive solder profiles

Electronics Forum | Mon Aug 04 13:13:21 EDT 2008 | patrickbruneel

The 2009M is a water based flux and requires more preheating compared to alcohol based fluxes. After checking real chunks advice you might check if you hear sizzling when the solder touches the board (indicator that the water is not eliminated by you

Block repeat and fiducial relation

Electronics Forum | Thu Aug 21 19:18:47 EDT 2008 | duchoang

My steps are different in that case: 1- Check mounts. Try to adjust origin point until get the pretty good mount positions. 2- Teach fiducials ( Board fids, not panel fids) 3- Use fids, check mount again. 4- If OK, then teach Block Repeat. This alwas


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