Electronics Forum | Thu Aug 01 13:04:57 EDT 2002 | gdstanton
Its interesting. It appears I'm getting conflicting feeback from Indium. This says its not a problem... http://indium.custhelp.com/cgi-bin/indium.cfg/php/enduser/std_adp.php?p_sid=kTDKGClg&p_lva=&p_faqid=355&p_created=1014734692&p_sp=cF9ncmlkc29
Electronics Forum | Tue Feb 15 14:35:41 EST 2000 | Balas
hi I am designing a test vehicle with a range of components on it(pbga, cbga,fc, mbga, and qfps). My concern is that I would like to use a single stencil for solder deposition and not a stepped stencil. That would require me to have aperture design a
Electronics Forum | Tue Nov 30 15:38:27 EST 1999 | Wendy Casker
Hi, I am looking for land patterns for 0612 and 0508 chip capacitors. Because they are not standard (yet) package sizes, i am having trouble finding a standard land pattern. (If you don't know what these are, picture a 1206 or an 0805 with the te
Electronics Forum | Wed Jul 22 13:57:03 EDT 1998 | bill
| | We need BGA rework station and x-ray inspector recently in urget case, Do you have any information to rework FPGA package and inspect them during processing. | Thx for any information | Best Regards, | Stoney Tsai If you are doing any reballing
Electronics Forum | Wed Jul 31 14:08:22 EDT 2002 | Dave G
Used this paste on ENIG boards W/O N2 and had very good results. (0402's,BGA's,16mil FP) Never had the need to use N2 with this paste on our products. Running with N2 shouldn't hurt anything. The wetting properties should get even better than they ar
Electronics Forum | Wed Jan 12 10:05:20 EST 2005 | Dreamsniper
we are using polyimide boards 6 inches x 7 inches, 2.5mm thick, 12 to 14 layers, for aerospace industries. I am using a long bake of 12 hours at 70'C prior to manufacturing or exposure to elevated reflow and wave soldering temperature. If schedule i
Electronics Forum | Wed Aug 10 11:57:16 EDT 2005 | pr
Is the peelable mask (put on by the boardhouse) flat on the surface of the pcb? If so can you tell me the material name, so maybe I can find a picture? We have to print adhesive on the board, so the mask has to be flat. That is why Kapton from the b
Electronics Forum | Sat Feb 17 14:21:54 EST 2007 | Muhammad Haris
Hi All, I am using YV100Xg YAMAHA Pick and Place Mounter Machine and I am facing a tilting problem of PLCC 84 and QFP 240 pins ICs. I deeply checked about their vision files and place them on the double sided tape and found them ACCURATE on their pad
Electronics Forum | Thu Jul 12 16:14:20 EDT 2007 | realchunks
Hi Scott, Hard to tell what kind of problem you really have. I guess you need to describe your process first. What kind of process are you using. Wave solder, reflow solder, etc.. What kind of flux are you using to solder with? Vaccum? What ar
Electronics Forum | Fri Jul 13 17:00:34 EDT 2007 | jmelson
Oh, sure, on fine-pitch parts you need a microscope or at least a good magnifier. But, OK, you have some kind of contamination. Solder is one thing, but where are these stainless, aluminum and copper particles coming from? Stainless makes me think
