Electronics Forum | Mon Jun 05 11:42:17 EDT 2006 | smitty
A discussion started this morning an whether we need to add an N2 line to the reflow oven when we switch over to a lead free process. We will be using OA flux. Any thoughts?
Electronics Forum | Fri Mar 14 04:42:24 EST 2003 | emeto
Hi, About Thombstone defects: 1.Placement accuracy-main reason 2.Soldering-should be right on pads.The print should have regular shape.The quontity of the solder on both pads on one component have to be equal. 3.Reflow: the profile have to be made v
Electronics Forum | Mon Jun 05 14:28:45 EDT 2006 | marc
A few years ago with the 1st and 2nd generations of lead free material N2 was highly recommened. Now most of the materials suppliers have good formulations that are just fine in air reflow. I would still run a DOE though... just to be sure. Als
Electronics Forum | Fri Dec 15 03:16:11 EST 2006 | pavel_murtishev
Good morning, The critical points for successful PIP technology are: 1. Gap between THT lead and PHT hole. It shouldn�t be greater that 0.2mm; 2. Lead shape. THT leads MUST be straight or you�ll get excessive voiding otherwise; 3. As Russ said, pas
Electronics Forum | Tue Oct 30 06:20:58 EDT 2007 | aj
Hi All, I would appreciate some advise with regard to Leadfree settings for a 5 zone reflow oven. I have a 35mm square BGA 672 pin on board. I am struggling to get the Delta T down to 2 degrees C . I have 5 Thermocuples drilled up from the bottom a
Electronics Forum | Tue Dec 18 18:37:35 EST 2001 | Dreamsniper
Hi, Forgive me for my stupidity. Has anyone moved the fixed side of the Heller's Edge hold conveyor by 50mm ? I need infos on how they did it. This is because of the high delta T that we are getting from our oven which is between 20 to 20 deg. C from
Electronics Forum | Fri Nov 04 11:29:46 EST 2005 | JeffP
Jay, I work for a company that manufactures batch reflow ovens however, I will try to be as subjective as possible. For the most part, what others have posted is true. Yes, there is one heating chamber and if the heater does not have enough power
Electronics Forum | Sat Jun 12 19:48:47 EDT 2010 | bootstrap
I like what you're doing. 20 years ago anyone, hobbyists and tiny garage-shop companies could create electronics devices just as sophisticated and cool as big corporations. Today, SMT has largely trashed the creativity (and competition) that existe
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