Electronics Forum: nitrogen and tunnel (Page 2 of 5)

Nitrogen and dry cabinet

Electronics Forum | Tue Jul 30 08:38:55 EDT 2002 | dasal

Truthfully, there are pro's and con's for both technologies. (put cost of ownership aside for one moment) Nitrogen won't dry humidified components as rapidly as a desiccant dry box. I'm talking about a self regenerating dry box that uses molecular s

0201 and uBGA

Electronics Forum | Mon Sep 23 18:11:10 EDT 2002 | steveb

On an assembly reflowed in air saw the same thing: 0201's with a grainular solder joint, but 0402's and above with perfectly formed joints. Reflow profile all within acceptable tolerances. Reflowing in nitrogen solves this problem, but increases t

Material Ageing and Storage

Electronics Forum | Thu Feb 22 04:00:02 EST 2001 | Scott B

We are increasingly being asked to store components for longer and longer periods which we know through experience leads to reduction or total loss of solderability of the parts. 1) What is the industry accepted shelf life of tin/lead plated compone

Solder Balls and Humidity

Electronics Forum | Tue Aug 28 11:12:23 EDT 2007 | grics

This is what I was thinking, but I am being beat up pretty badly by the selective solder. Ambient temperature is anywhere in the the neighborhood of 76 - 80 degrees F. I am not sure of the RH, but I wouldn't think that would be my issue... One of

Nitrogen gas and Tombstone defect

Electronics Forum | Mon Nov 21 16:34:03 EST 2011 | davef

Google: nitrogen reflow tombstone https://www.google.com/search?q=nitrogen+reflow+tombstone&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a

Nitrogen gas and Tombstone defect

Electronics Forum | Mon Nov 21 10:12:11 EST 2011 | callckq

All, I try to find explanation(Article)on how Nitrogen gas can make tombstone defect even worst. However, I can't find one in the net. Anyone that has this information or article, appreciate if you can share with me...Thanks in advance.

Nitrogen gas and Tombstone defect

Electronics Forum | Thu Nov 24 07:41:33 EST 2011 | davef

Here's a paper from the SMTnet Newsletter http://www.smtnet.com/library/files/upload/dispelling_10_myths_about_nitrogen_reflow__andy_mackie.pdf

Nitrogen gas and Tombstone defect

Electronics Forum | Mon Nov 21 10:51:12 EST 2011 | scottp

I've never seen a good article with a definitive explanation - just speculation that the increased wetting forces due to nitrogen result in increased tombstones. My own experience is that nitrogen is a very minor contributor to tombstones and can pr

Soldering robot and solder balls

Electronics Forum | Thu Jun 22 09:50:48 EDT 2017 | capse

Are you using nitrogen in your soldering process?

Flip Chip and lead-free soldering

Electronics Forum | Thu Jul 20 16:08:18 EDT 2000 | Grant Baynham

Do you have any experience with flip chip applications using lead-free solder, and specifically do you have any information revealing how the process parameters for standard air reflow atmosphere can be modified to match the results for solder reflow


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