Electronics Forum: oxygen and nitrogen (Page 1 of 8)

Replacement for nitrogen in the reflow oven

Electronics Forum | Fri May 21 20:38:40 EDT 2004 | Grant Petty

Hi, This would be a very exciting idea. Nitrogen is an inert gas, so this is why it's used, however Hydrogen mixed with oxygen in normal air is highly explosive, so it would be one of the worst gasses to use in a reflow oven I would think. Remember

Nitrogen Reflow

Electronics Forum | Thu May 24 10:51:49 EDT 2001 | Frang

What is the guideline to determine the require level of PPM Oxygen in Nitrogen reflow.

Nitrogen and dry cabinet

Electronics Forum | Mon Jul 29 11:28:09 EDT 2002 | yngwie

Is there a difference between the Nitrogen cabinet vs Dry cabinet ? How does this helps in creating safe environment for MSD storage. I felt puzzled when my customer rejected me coz' I'm using the Nitrogen cabinet instead of dry cabinet. Except for t

Nitrogen and dry cabinet

Electronics Forum | Mon Jul 29 21:22:52 EDT 2002 | Yngwie

The customer said " The Nitrogen PPM is questionable". LIke what I said, as long as I have met the 10% RH, it should be OK, rite ? thx

Nitrogen and dry cabinet

Electronics Forum | Mon Jul 29 18:55:34 EDT 2002 | davef

Good question. What did your customer say?

Nitrogen and dry cabinet

Electronics Forum | Mon Jul 29 21:41:22 EDT 2002 | davef

Rite. Moisture, not N2, in the air is the issue.

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

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