Electronics Forum: building (Page 31 of 220)

PCB open trace repair

Electronics Forum | Tue Aug 08 11:18:09 EDT 2006 | Chunks

Since we build produt and co not repair, we send our damaged boards to a place that specializes in board repair.

Reflow Oven Chains

Electronics Forum | Wed Aug 09 12:18:06 EDT 2006 | PR

We had to replace the chains on our Omni as well. We used a non-approved oil which build up so much carbon the links would not move. Since using the high temp oil they recommend, no problems.

Do yo have to bake unused bare boards or just Vacuum Pack?

Electronics Forum | Fri Aug 25 07:42:29 EDT 2006 | davef

Our sympathies about the ENIG boards. B:) So, you cut the end off the barrier bag, take 200 boards, heat seal the end of the bag and restock it, build the 200 boards and ship them, right?

MPM UP2000 Hi-e

Electronics Forum | Wed Aug 30 06:56:34 EDT 2006 | billyd

Keep in mind; if you're building warped or twisted boards, do NOT use the Grid-lok system on them, as they tend to conform to the bend or twist of the underside of the PCB, so it will not flatten or straighten out much at all when it's brought to the

Fixture Material

Electronics Forum | Thu Nov 02 10:42:58 EST 2006 | SWAG

One thing to keep in mind: we are using the CAG grade of Durostone. It works excellent for leaded. We used existing CAG fixtures for builds that converted to ROHS and eventually damaged them as they warped enough to affect the print job. If you a

Hardware for ROHS builds

Electronics Forum | Tue Nov 07 08:09:48 EST 2006 | gcolbert

I'm not sure if the hardware has some of the banned substances, but our customer is in the medical field and the products must meet ROHS requirements. I don't think they would let us send the harware out for testing for fear of future problems. Thank

Hardware for ROHS builds

Electronics Forum | Tue Nov 07 11:09:55 EST 2006 | gcolbert

Basically I'm looking for nuts, bolts, and washers Thanks for the information. That will be very helpful. I did notice that the hardware companies are not as concerned with ROHS.

Flux residue cause high false reject at ICT

Electronics Forum | Wed Nov 29 09:54:05 EST 2006 | jhaviland

Washing these boards would be a great help. The flux will build up on the probes and possibly corrode them depending on it's composition. Aim for a process that will burn off the majority of the flux, or change chemistries if washing is not an opti

Reflow Problems

Electronics Forum | Wed Jan 03 12:08:43 EST 2007 | patrickbruneel

What I would suggest trying is to only use your bottom heaters in your oven. In this way the board will receive the majority of the heat and conduct the heat to the component. Since your components are small and your board is more then twice the stan

BGA opens

Electronics Forum | Wed May 02 06:56:52 EDT 2007 | Rob

Has anyone experienced deformed balls on BGAs - especially very low volume build to order devices? I'm looking into a possible hidden pillow defect and think I have eliminated most of the other factors I believe could cause it. Cheers, Rob.


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