Electronics Forum | Thu Jun 08 22:54:31 EDT 2006 | hunghung
Dear all, If a PCB board, 2 mils of core with 1oz copper at the top and bottom, is it a good board to be fabricated? will it be caused warpage during etching for inner layer process? if yes, what is the real factor caused to warpage? How to solve t
Electronics Forum | Thu Jun 15 04:12:12 EDT 2006 | Rob
I agree with Dave, we looked at it, but they can go walkies, and also people tread on them, drop things on them, mess with the programs etc. We (the IT dept, not me)ended up writing a Visual basic program & put a PC at every inspection station, li
Electronics Forum | Fri Jul 07 07:59:33 EDT 2006 | Rob
Hi Piet, I've never used a Dima macine before, so I can't comment there. I've seen Mydata's sell for as little as 8500 Euros from customers to 17,000+ Euros from dealers, to a lot more from Mydata. A lot depends on being in the right place atthe r
Electronics Forum | Fri Oct 27 11:44:05 EDT 2006 | billyd
Hi guys. I'm hoping maybe some of you can help me with some information today. I'm looking to find out "ballpark" how much a decent board washer would set me back. The one I currently have just isn't doing the job the way I want it. It seems to have
Electronics Forum | Mon Nov 06 11:23:50 EST 2006 | realchunks
A slow profile should get you up to temp unless you have severe mass on your board. 8 zones is a lot oven to work with. There are no lead services that can run your board for you. Might be expensive, but use this cost to justify a real high temp
Electronics Forum | Tue Nov 14 03:48:08 EST 2006 | aj
Hi, What is the non-leaded part ? the only real obstacle I have found is when using a Leadfree BGA with PB Paste. We have had to do this in the past - the hybrid profile I used was pretty much the same as normal apart from increasing the peak temp
Electronics Forum | Fri Nov 17 17:34:26 EST 2006 | realchunks
OK, why are you hand fluxing? You may want to take the time to use your real fluxer. Yeah, it's a bit messy but you can control the amount of flux you're putting on the board. And with water based fluxes, this is critical. If you are stuck to han
Electronics Forum | Tue Nov 21 13:25:25 EST 2006 | jax
Depending on Zone Temperatures, Belt Speed, and Board Density... Some Convection Ovens will drop Zone Temperatures faster than others. They recover by increasing Air Circulation. This can make parts fall off the Bottom-Side that otherwise would
Electronics Forum | Mon Nov 27 08:10:08 EST 2006 | Loco
Dear all, I'm having a friendly discussion with our chief manufacturing engineer. To our PCB suppliers we specify the use of "chemical gold", imo this means we use ENIG, Our boards are all copper under the solderresist which imo further confirms we
Electronics Forum | Mon Nov 27 09:17:54 EST 2006 | lrd116
Could anyone please help me in my evaluation of Agilent vs. Omron vs. MIRTech/YESTech AOI? We are a high-mix low-to-mid volume manufacturer looking to gain not just a screening method but real process understanding that a Quality Engineer (myself) w
