Electronics Forum | Thu Oct 30 15:36:18 EDT 2008 | grantp
Hi, Sounds like your engineer does not know what he's doing. We have developed and built hundreds of thousands of boards with normal square pads for 0402, and we just use a 5 thou stencil with 5% reduction and it works well. Decoupling? What is tha
Electronics Forum | Fri Aug 04 13:47:20 EDT 2006 | pemea1
apples to apples. 20 boards 80 parts top and 10 parts bottom. these boards are done on a semi regular basis (you know the boards are coming to you from an OEM at least three times a month, just no exact schedule). All that is required is pasting..mo
Electronics Forum | Tue Jun 02 13:44:04 EDT 1998 | Rin Or
| | | | | Does anyone use the "Quick Frame" with their Dek printer? | | | The threads on the screws keep stripping, so we thought | | | maybe we'd send our frames to a machine shop for heftier | | | screws. Has anyone done this? Is there a better wa
Electronics Forum | Thu Jul 06 13:29:42 EDT 2006 | Chunks
Unfortunately it's not what you know, but who you know. Sounds like it in your case. Tread lightly as this guy may become your boss. It happened to me. New guy comes in, couldn't tell the "red stuff" from the "gray stuff" (adhesive / paste in cas
Electronics Forum | Wed Sep 07 17:09:57 EDT 2011 | Shean Dalton
http://www.ems007.com/pages/zone.cgi?a=60472 Article describing a dual lane approach, with the caveat to watch out for temperature sensitive components. Shean FHP Reps
Electronics Forum | Thu Oct 04 16:07:03 EDT 2007 | jdengler
Everything for a lead free job is labeled with green lead free labels. This includes all processing documentation. When the kit is issued to production the production supervisor and SMT lead operator are reminded that the job is lead free. When th
Electronics Forum | Thu Sep 28 14:26:28 EDT 2000 | James
We use both a 3S and a 3AV. We do place 0603s and have tried 0402s which the machine is supposed to have the ability to place but will not do reliably in a production environment. We do have fairly good results with the 0603s, but we try to place t
Electronics Forum | Thu Jun 08 16:40:08 EDT 2017 | sumote
I have used one (actually 2) of these machines. The upside is you can point to the print-out and tell your customers that you do test for cleanliness, and you pass. The reality of this test is that it tests for exactly 1 type of contamination. The
Electronics Forum | Tue Feb 16 16:28:30 EST 1999 | Tuffty
| | Can anyone help me with the pros and cons of trying to wave | | solder tantalum and large (1812) ceramic capacitors. I do | | know that one may see fractures on larger cermaic caps, but have not seen much on the tantalums. Any insight as to what
Electronics Forum | Thu Mar 25 23:23:00 EDT 2021 | llawrence
The QFP pitch is 0.5mm. Pad size is 1.475 x 0.3mm, and the new aperture size is 1.32 x 0.22mm. I'm not sure about whether or not it is lasered, but on the newly ordered stencil I selected the polishing option. Looks like the pad width is already 2/3