Electronics Forum | Thu Feb 27 12:27:10 EST 2003 | stevel
Hi all, We got some bare pwb in our incoming inspecion looked really wrapped. The maximum twist of the pwb we messured is 0.056inch by following the method in IPC-TM-650 2.4.22 C. (The diagonal size of our pwb is 7.5inch) According to the IPC standa
Electronics Forum | Tue Sep 16 19:16:11 EDT 2008 | hegemon
Hello everyone! > > I'm a student of electrical > engineering currently working on a thesis for my > BSc degree. It will be about post reflow AOIs and > AXIs, and I'd kindly like to ask you for some > help with it. > > I would like to know if t
Electronics Forum | Thu Apr 30 05:54:41 EDT 2009 | davepick
Michael, There are so many factors involved that mean a definitive number is extremely difficult - if not possible. I recommend you speak with Tony Wilson. He has been in the industry for over 25 years and reccently done PhD work on modeling failure
Electronics Forum | Sun Sep 05 03:52:11 EDT 1999 | Brian
| We've noticed that there are many different recommendations for pad sizes for various SMT parts. This seems to vary wildly from manufacturer to manufacturer for the same case sizes. Is there any standards that can used used to specify these sizes
Electronics Forum | Mon Jan 31 15:02:52 EST 2005 | gs
First of all ask your Suplliers to provide you SMD in Tape & reel, second point, you can ask Service for Tape & Reel or in case components are not so many, you could asses ef convenient to buy a sinple maual Tape & Ree machine and do it inside your f
Electronics Forum | Thu Nov 10 23:09:45 EST 2005 | davef
Poured flooring suppliers are: * Garland Floor http://www.garlandfloor.com * Sauereisen http://www.sauereisen.com/c_prod/c_esd.htm Vinyl & rubber flooring suppliers are: * VPI http://www.vpiflooring.com/products.php?cat=2⊂=1 * 3M http://products3
Electronics Forum | Tue Sep 30 20:55:14 EDT 2008 | davef
Residues from different no-clean fluxes produce different levels of variation in RF circuits. Some no-clean fluxes work fine. Following this, a no-clean flux can produce different levels of variation in RF circuits depending on the process setup.
Electronics Forum | Wed Sep 29 08:26:03 EDT 2010 | babe7362000
We are Currently running a Board and it seems that the SOT-223's on the bottom side have flux and water trapped under the part. Nothing has changed in our process and this is the only board that it is happening on. We are using Kester R562 water wa
Electronics Forum | Fri May 06 08:27:38 EDT 2016 | kahrpr
We have Samsung and havehad no problems with simultaneous pick ups with 201s 0r 402s. the feeders are durable and do not need much repair especially the sm feeders. The SME feeders have not been out as long so we will see so far so good. As with all
Electronics Forum | Tue Oct 09 12:23:07 EDT 2001 | Mike Konrad
Hi Danial, Yes, you can use one cleaning chemistry for all paste types. There are many available chemistries from many manufacturers. The chemistries that I would recommend include: StencilWash Plus from Aqueous Technologies http://www.aqueouste
