Electronics Forum | Tue Sep 21 16:09:08 EDT 2004 | davef
Q1: What is "enough surface free energy"? A1: Look here for background: http://www.azom.com/details.asp?ArticleID=1575 Q2: How do I determine surface free energy? A2: We look at it a relative term. For instance, a semi matte finish on solder mask
Electronics Forum | Fri Oct 15 08:01:05 EDT 2004 | jmedernach
Hi Matt, You've got an interesting problem. Sounds like something from an X-Files episode but it's still interesting. In your posting, you say that the paste is "there" after screen printing. Release isn't the greatest with a 0.012" round aperture
Electronics Forum | Tue Oct 26 10:49:00 EDT 2004 | Simon UK
Hi, > > I'm planning to get a new oven. I wanna > know the advantages and disadvantages of each > oven type over each other. I'm being told to go > for an 8 zone oven. > > thanks for your > help. > > regards, Depends really if you want a dua
Electronics Forum | Mon Nov 01 03:09:05 EST 2004 | Grant
Hi, I would get a KIC profiler, and put thermocouples on the PCB to get a correct profile. You can enter your specs into the software, and it will give you a simple percentage letting you know where you are inside your process window. 0 is perfect i
Electronics Forum | Tue Oct 26 15:44:35 EDT 2004 | Paul_pmd
Hi Mike, Surface mount components arn't difficult to work with at all. They have pretty much the same tolorance to heat degridation as Dip packages. I suggest two Irons when working with two pole resistors and caps. Heating only one end at a time wil
Electronics Forum | Fri Oct 29 09:45:08 EDT 2004 | pioneertechnology
In 1995 we bought 4 Vitronics U520 reflow ovens with top heat only. We ran these ovens until 2003 for both curing and lead reflow with no problems. In 1998 we bought 1 U520 top and bottom heat and one U820 top and bottom heat and once again we had
Electronics Forum | Sat Jan 08 00:47:12 EST 2005 | Grant
Hi, Yes, one of the problems with the MYDATA is the feeders are in groups, but at the same time, they are simple, and don't break. But the new Agillis 12 and 16 mm feeders do jam a bit. It's worse on glued cover tape, while heat bonded cover tape is
Electronics Forum | Thu Jan 13 07:29:49 EST 2005 | Grant
Hi, It's both really, and we are doing higher volume of current products, but new products are increasing in component count, mostly passives. We have analog on our products, and this uses a lot of passives, plus each semiconductor needs decoupling
Electronics Forum | Thu Jan 13 15:13:58 EST 2005 | wallybanger
Hey Folks. I'm new to the board and I figured what better way to introduce my self than with a question =-) I'm living in an Old house and the Power Fluxuations are reaking havoc on my computer. I want to build my self a continuous uninteruptable
Electronics Forum | Sun Jan 16 05:22:36 EST 2005 | dorklover664
I�ve worked as an SMT operator for 3 different companies. And have worked with six different types of pick and place machines. I can tell you what I know. The first place I worked at was high volume low mix and we ran Fuji�s. They are by far the best
