Electronics Forum | Mon Mar 04 16:15:32 EST 2013 | dyoungquist
A little oil on the dough, then the pizza sauce, then the toppings. Next place it in the reflow oven using a standard leaded reflow profile, might have to slow down the belt a bit. Should turn out a tasty pizza. ;-)
Electronics Forum | Sat May 18 21:52:30 EDT 2013 | kumar_antom
Hi guys, Whats actually Delta T ? As i know,its applicable for reflow profiling. Recently my superior asked me whats the Delta T for heating settings on my reflow ? Does Delta T applicable for heater setting on my reflow ? Pls advise as i m puzzl
Electronics Forum | Wed Aug 07 02:24:54 EDT 2019 | ameenullakhan
Hi Dave, Yes the lead was there before reflow. After reflow it has bent inside. The component was inspected before placement. We are unable to analyze, what might have went wrong. Regards, Ameen
Electronics Forum | Wed Mar 03 18:42:29 EST 2010 | 89jeong
Hello Graham Copper. Thanks for yr comment. I will review the pad size and component placement with our engineer. It looks that the placement of lead is wrong. But what i want to hear from you is about solder lump on the right.As you can see, the sol
Electronics Forum | Thu Aug 17 12:18:40 EDT 2017 | cyber_wolf
I do not see anything obvious that would cause a thermal mis match. Regarding reflow profiles reducing tombstoning, Unless there is something wrong with your paste or you are running smaller than 0402's, I have NEVER seen a reflow profile reduce tom
Electronics Forum | Thu Aug 22 22:19:13 EDT 2019 | sssamw
From the picture you present, it is a pin in paste part with pin length 2.2mm (a good length for 1.6mm PCB thickness), and seems the pin tilted and touch on PCB surface, thus causes up-part. Sorry I cannot image pin tilted not before placement but i
Electronics Forum | Tue Oct 17 18:36:49 EDT 2000 | Philip Reyes
Yeo, These are possible rootcause of that defect and you can evaluate. 1. Orientation of the capacitor, maybe the cap is located behind big component. 2. Reflow profile, check the profile on that side. 3. Yes, check also the mounting force. Philip
Electronics Forum | Wed Jun 20 11:44:19 EDT 2001 | Steve
We use a universal recipe for 90% of our products. But, I had to develop a temperature profile for each PCB to know that I was getting the correct temperature at the PCB. You may need to work a weekend or a couple of late nights to get the data. Go
Electronics Forum | Wed Apr 02 10:51:17 EST 2003 | kmorris
Myu: Did you have to change your reflow profiles when you changed from 609 to 709? What ramp rate & time over liquidus are your profiles at?
Electronics Forum | Wed Nov 03 09:40:07 EST 2004 | vinod
Thanks Grant. I have Heller 1707 and it has built in thermal profiler. As a start up We won't be able to buy kic, but I have used in past and it is great.
winsouce.jpg)