Electronics Forum: n2 and reflow (Page 1 of 61)

N2 reflow

Electronics Forum | Sun Oct 15 23:31:39 EDT 2000 | mkwong

I have a question for N2 reflow, I want to know how difference of the O2 PPM in reflow oven then get the result? Now, we use the N2 to purge into BTU oven and measure the O2 PPM is about 1,000. but cannot find the difference to compare to compress ai

Tg and reflow

Electronics Forum | Fri Dec 16 18:37:10 EST 2005 | mdemos1

Hi. I am trying to understand Tg and how it relates to reflow. With the higher temperatures of lead free, we have been looking toward laminates with a Tg of 180 instead of the current 140. My question is a little more general. In either lead free

Intermetallics and reflow profile

Electronics Forum | Tue May 02 15:29:14 EDT 2000 | M. F. Roe

I am looking for public papers or articles on intermetallic formation as a function of reflow profile. Most solder paste vendors specify peak temperature and time above liquidus, but I am particularly interested in what happens to intermetallic grow

Tg and reflow

Electronics Forum | Mon Dec 19 07:29:30 EST 2005 | jax

Tg is just a way to say when the board goes limp... or a quick way to rank laminates... who cares. For lead free you want to look at Td, Decomposition Temperatures. ( Temp at which the material weight changes by 5% )

Tg and reflow

Electronics Forum | Mon Dec 19 07:49:33 EST 2005 | davef

=330*C is good advice. Search the fine SMTnet Archives for earlier discussions on Td, like http://www.smtnet.com/forums/Index.cfm?CFApp=1&Message_ID=32430

Tg and reflow

Electronics Forum | Mon Dec 19 12:21:09 EST 2005 | Amol Kane

from what i know, Tg is important from thermal stresses point of view. board warpage increases greately when Tg is exceed

N2 pressure in reflow

Electronics Forum | Fri May 21 03:01:22 EDT 2004 | Nitro

I want to know the pressure of N2 in each zone in furnace. If have standard it will better.

Indium No-clean and Inert Reflow oven (N2)

Electronics Forum | Wed Jul 31 13:09:17 EDT 2002 | gdstanton

Anyone have experience with Indium NC-SMQ92J solder paste used in an inert (N2) reflow oven?

help with LEDs and reflow

Electronics Forum | Tue Aug 10 11:23:11 EDT 1999 | danielm

We currently have 32 LEDs per board and are looking to change the LED from a gull wing package to another package. (possibly a chip type package). I have heard that some cases and LEDs do not like reflow. This part is not cost effective to have to pu

01005 components and reflow profiles

Electronics Forum | Mon Apr 16 10:01:03 EDT 2012 | patrickbruneel


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