Electronics Forum | Wed Aug 28 10:16:12 EDT 2002 | Jim M.
Sam We install a lot of die in the SMT room using same process as SMT parts.Water soluble solder paste is used for attachment of die to ceramic and boards. Biggest problem i found is the adjustment from installing the die in the bonding area. The t
Electronics Forum | Fri Mar 07 08:47:45 EST 2003 | msivigny
Hello Peter, In reflow, running a profile and collecting thermal data does not necessarily make it easy to calculate and determine machine capability. On the contrary to your desires of simplifying the process, determining machine capability on an ov
Electronics Forum | Thu Jul 10 09:55:47 EDT 2003 | davef
A reading of the pictures is: A1: Looks like pad [B1] is smaller than the other pads. It�s weird that the pads are such different colors. A2: Looks like pad [B1] is smaller than the other pads. Solder mask opening [B1] is misregistered and seems s
Electronics Forum | Thu Jul 31 15:41:23 EDT 2003 | davef
Q: Could any of you guys tell me what exactly is this greenish thing ? A: No, but is not copper oxide. Copper oxide is brown, the color of a penny [here in the US] or an untreated copper laminated trace on a board. Many copper salts are greenish in
Electronics Forum | Sat Sep 27 11:30:06 EDT 2003 | Fede Muelas
Hi, My name is Federico Muelas, I�m an artist working with technology and I�m having a solo show in Barcelona at the end of the year titled �the sound of the chocolate smell� where I�m showing my recent installation pieces, you can check the info of
Electronics Forum | Fri Oct 03 07:49:18 EDT 2003 | mk
Mask Musings. Soldermask (SM) and its functions have changed and evolved over the years. As an ex-solder mask applicator, I can remember screening Colonial High Gloss Epoxy soldermask on boards back in the early 80's, ending up with a thickness that
Electronics Forum | Tue Mar 09 23:59:17 EST 2004 | fastek
Sr. Tech- I'll pipe in a bit as this is a touchy subject with me as well. I do feel that sometimes I am simply selling my way out of business when I export a piece of used equipment. However business for myself in THIS country has increased dramatic
Electronics Forum | Tue Apr 13 17:48:54 EDT 2004 | davef
Q1: Can anyone explain to me about the effect of their mixture. A1: What is their �mixture�? Q2: What enhancement does my BGA will have when using a WS paste flux with regards to corrosion, 25 years life cycle of the solder joint. A2: Tough to say
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 | Mon Jun 28 10:03:22 EDT 2004 | davef
First, welcome to your new job. Second, IPC-TM-650 2.6.14 is only loosely an �Ionic Contamination (Electromigration) Test�. * Electromigration Test, IPC TM 650 2.6.14, 2.6.14.1 * Ion Chromatography for Ionic Cleanliness, IPC TM 650 2.3.28 Third, I
