Electronics Forum | Wed Aug 08 17:05:01 EDT 2007 | klaughton
I have instituted a policy that probably seems a little extreme to some, but is worth the cost in my eyes. Once a jar of solder paste is opened, it must be thrown away at the end of the work day (Properly discarded, of course). We use the small 250
Electronics Forum | Mon Aug 13 05:39:31 EDT 2007 | saaitk
I am building a double sided SMT board. On the first side I have a 405 ball BGA. When we build and run the second side through our reflow oven on about 25% of the boards run the 405 ball BGA on the underside of the board has fallen off. About 80% of
Electronics Forum | Tue Aug 21 05:05:52 EDT 2007 | vangogh
Hi All, I would like to get some inputs regarding this.... I have bare PCB which were stored with kapton tape attached on the Au plated pads. These were stored for close to a year. Upon removal of kapton tape, we noticed discolorations on the edges o
Electronics Forum | Tue Aug 28 11:08:42 EDT 2007 | dphilbrick
Dedicated fixtures are always better, assuming you use a good manufacturer. If your a CM you will always have a battle convincing customers to pay for dedicated fixtures unless you have a detailed cost structure that can show them how they will save
Electronics Forum | Fri Sep 07 17:38:23 EDT 2007 | bentigano
Hello James. I've got a YesTech YTV-2050 system at work with one top-down camera, and 1 side-view camera for each of the four sides. I do have the side view cameras being used for automated side inspection. There are some parts with markings that are
Electronics Forum | Fri Oct 12 14:53:56 EDT 2007 | mika
Hussman, I'm sorry that I was a little bit tired and on top of that not so sensitive to your humour. Not so easy to understand everything for us Swedish guys. We have normally a great sense of humour over here and almost daily we have a big laughs a
Electronics Forum | Wed Oct 10 14:21:04 EDT 2007 | petep
We have done the Green Framed Stencils for an added $50.00 per, then got smart and went to green polyester on RoHS / Lead Free Stencils at no added cost. Dedicated Stencil blades and holders green of course) as well as Green Static mats on dedicated
Electronics Forum | Thu Oct 11 17:32:59 EDT 2007 | wayne123
In Block repeat information did you put the rotation in before optomizing? This is where the machine gets the rotation of these individual boards. The Block fiducials are good to use, but they aren't for defining rotation. If you optomized using note
Electronics Forum | Fri Nov 09 08:45:31 EST 2007 | philkaz
I am in the R&D department at KIC. We have been making thermal profiling equipment for 20+ years. A standard circuit board is made from FR4 fiberglass. A typical solder reflow profile, whether leaded or unleaded, takes the board above the "glass t
Electronics Forum | Mon Nov 05 00:51:58 EST 2007 | omidjuve
We have a problem with soldering of a 96 pin header connector(9001-11961c00l1a from kingmate) we use 3 different wave soldering but in all of the machines we have many short circuit between the pins . the wave soldering machines that we use is fr
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