Electronics Forum: flux and exhaust and oven (Page 2 of 3)

Time and temp in lead and lead-free reflow

Electronics Forum | Fri Jul 25 15:54:22 EDT 2008 | pcbbuilders

I am trying to optimize my reflow profile. i have a 5 zone oven. lead-free: for the 1st 3 zones, i am good, at about 150-200 deg for 150 seconds. during the 4th zone, i am at a temp of 200-220 for 50 seconds. during the 5th zone, i am at 220-245 f

Cracking Capacitors and Solder Balls

Electronics Forum | Mon Jun 08 14:19:30 EDT 1998 | Gary Simbulan

Earl, et al, Boy things get old and cold around here fast. I promised more detail on my capactior problem and I thought I could drop something completely different in the same message and tell a tale of solder balls. First the caps. We still have

floor and air conditioning, shop floor requirements

Electronics Forum | Thu May 02 15:29:19 EDT 2013 | jim_n_hky

I can't answer your specific question on the floor, but I have some suggestions. The equipment manufacturer should be able to provide the floor loading requirements. A structural engineer should be able to translate that into specs for hte constructi

Nub bying p&p, stencil printer and reflow.

Electronics Forum | Mon Apr 18 10:07:19 EDT 2011 | wrongway

Hello Jebs we started out that way but the more handaling of the pcb the more problems you will have if you can do it in line and have the pcb's stop at some of the conveyors you can do some inspection. yes all of our machine's are in line now we lo

Re: Cracking Capacitors and Solder Balls

Electronics Forum | Tue Jun 16 15:01:58 EDT 1998 | Gary Simbulan

There are some common reason for capacitor cracking on my web page if you want to have a look. The document can be downloaded for your reference. | Earl, et al, | Boy things get old and cold around here fast. I promised more detail on my capactior

Re: Cracking Capacitors and Solder Balls

Electronics Forum | Tue Jun 16 15:00:12 EDT 1998 | Gary Simbulan

There are some common reason for capacitor cracking on my web page if you want to have a look. The document can be downloaded for your reference. | Earl, et al, | Boy things get old and cold around here fast. I promised more detail on my capactior

Re: Cracking Capacitors and Solder Balls

Electronics Forum | Mon Jun 08 15:29:17 EDT 1998 | Gary Simbulan

| Earl, et al, | Boy things get old and cold around here fast. I promised more detail on my capactior problem and I thought I could drop something completely different in the same message and tell a tale of solder balls. | First the caps. We stil

Re: Cracking Capacitors and Solder Balls

Electronics Forum | Mon Jun 08 14:52:16 EDT 1998 | Gary Simbulan

| Earl, et al, | Boy things get old and cold around here fast. I promised more detail on my capactior problem and I thought I could drop something completely different in the same message and tell a tale of solder balls. | First the caps. We stil

Pros and Cons of Convection Reflow Cooling Systems

Electronics Forum | Mon Nov 17 18:40:10 EST 2003 | Ray Wilson

Advanced electronic assembly convection reflow ovens include a variety of options for cooling product after reflow. The Electrovert Omniflo series ovens include options for internal or external cooling systems. What are the pros and cons of utilizin

How does temperature and humidity effect solder paste/printing

Electronics Forum | Wed Apr 11 22:05:58 EDT 2001 | davef

OA pastes are more hydroscopic than NC pastes. Hydroscopic. The capacity of a material to absorb and retain moisture from the ambient air. Sometimes this is compounded if you remove paste from the frig and let it warm to room temperature, because


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