Electronics Forum | Fri May 01 20:12:29 EDT 1998 | Steve Gregory
| I've never seen this before. Today, I got this tombstoning on Tantalum Capacitors (Okay, I saw that before) | Here's the part that seems weird to me: | -They didn't tombstone onto a termination - they went onto their sides! That's right, both ter
Electronics Forum | Mon Sep 16 12:56:56 EDT 2002 | dragonslayr
simon- davef is on the right track. 1st year electronics courses teaches us that you should always check the power supply first. In this case, the power supply in question is not your power source but the regulated power within the unit. I suspect o
Electronics Forum | Tue Jan 17 05:02:33 EST 2006 | grantp
Hi, I was replying to this thread appearing suddenly. However I have run both machines, and I paid for them myself because I run my own company, and so the choices I made, I personally had to pay for. Also, anyone who's been on this forum for a whi
Electronics Forum | Wed Apr 09 17:39:30 EDT 2008 | diesel_1t
Hi. I know that this is one of the mos common threads here, I have been doing some research, but i didn't find any similar. The main issue is that I have seen tombstoning since two weeks ago, it is more characteristic on 0603 resistors (Stackpole e
Electronics Forum | Fri May 15 21:39:48 EDT 2015 | jlawson
Reflow.. 1.Rehm (Germany) - Best in Class Best overall process stability heating system ( Alot of makers have started to copy there VX heating arrangement ). COnveyor chains can be a bit more attention in terms of maintenance on rehm , but if foll
Electronics Forum | Tue Sep 29 09:39:02 EDT 2015 | rgduval
Hey, David, For service, check out 4TechUSA over in Detroit. It's not Chicago, but, you're closer to Detroit up there than I am down here in Houston :) For your issue....do you have access to the UIC Knowledge Base? The first issue I found in the
Electronics Forum | Fri Feb 04 21:12:34 EST 2022 | mnyut
After I pointed out at the end of November 2018 that here at SMTnet passwords are stored in plain text (https://smtnet.com/Forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=21588&FromArchive=yes), and they still are, this site was now apparen
Electronics Forum | Wed Mar 08 10:52:27 EST 2000 | Wolfgang Busko
Hi Jacqueline, for the "manufacturing allowance" IPC says FAB.TOL. is the board manufacturing tolerance and PLACE ACRCY is the pick and place accuracy. For 0,8 mm pitch they give for both values 0,1 mm. Solder joint design goal data comes from empir
Electronics Forum | Mon Feb 28 19:36:39 EST 2000 | Tony
I work for a contract manufacture of PCB's, we are also in the BGA rework business. We see all kinds of different size boards, as well as different types of BGA's and micro BGA's. We selected the Conceptronics Freedom 2000 over the Air Vac and SRT. T
Electronics Forum | Tue Feb 29 22:53:13 EST 2000 | KH
I have used both the QX2 and BGA3500 hot air rework system from Metcal; both are great systems; the QX2 is a very simple system for leaded devices, easily trained and very inexpensive compared to SRT, Air Vac, and Conceptronics. The BGA3500 works on
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