Electronics Forum: free (Page 10 of 543)

lead free solder crack

Electronics Forum | Fri Feb 22 15:16:24 EST 2002 | rkevin

Bet your using tin/ lead plated components with a lead free Cu/Ag/Sn alloy. It leads to intermetallic cracking. Wow didn't anyone tell you to check the archives yet, It seems to be the answer given to everyone. Why have an interactive site if you alw

Mixing lead free chemistry

Electronics Forum | Sat May 28 06:43:03 EDT 2005 | steve

I have the ability to offer both SAC and SN100C lead free alloys to my customer base. What might occur if a customer is already using SAC305 in their wave and they want to save money and go to SN100C. They now are mixing, tin,silver,copper with tin,c

lead free selective soldering

Electronics Forum | Wed Nov 02 11:14:45 EST 2005 | Doug

I am doing lead free testing on a Vitronics selective machine with a 4 mm nozzle. The finishes I am testing are ENIG, ImSn, and ImAg. The problem I am encountering is achieving good top side wetting. Has anyone had any luck with this type of an ap

free e-books download

Electronics Forum | Mon Nov 28 13:39:07 EST 2005 | pjc

You are not going to find those for free. http://www.moonmanondarkside.com/PODBOOKSALES.html http://www.amazon.com/gp/product/0412129213/ref=pd_bxgy_text_b/104-5800822-4731147?%5Fencoding=UTF8 Don't be cheap! An education is worth the money. Plus

lead free and tombstoning

Electronics Forum | Fri Feb 17 11:01:47 EST 2006 | amol_kane

with lead-free solders, one would expect to find less instances of tombstoning. this is because SAC alloys are not eutectic and melt over a range of temp (usually 217-220 deg C) instead of at a single temperature. therefore the forces due to solder s

Pb free validation

Electronics Forum | Thu Feb 23 12:17:47 EST 2006 | mafc65

As Russ say, you can buy kits from Practical components and make your tries, the send those pcb's to your solder paste vendor for analysis.I am using Senju Lead free solder and I send boards to them then they cut the board and analyze your solder con

lead free vitronic(s) profile

Electronics Forum | Tue Dec 12 01:52:05 EST 2006 | hemu_me

As we have vitronics oven(SMR610A) made in dec,1997,which has 5 heating zones and 2 cooling zones. For Lead free soldering what should be our baseline for low/medium boards.we have gathered profiles from various paste manufacturers,however we don't k

lead free pcb plating?

Electronics Forum | Thu Jul 26 23:57:47 EDT 2007 | gioblast

Good day.. anyone who have read the best guide on pb-free pcb plating?? I know immersion is the best but the storage controls sucks..easily changes color..ANYONE WITH A BETTER kNOWLEDGE ON HOW TO CONTROL? OR better plating ...enig?? why?? please. all

Flux free soldering

Electronics Forum | Mon Sep 24 12:47:37 EDT 2007 | PJ

I am doing some research on flux free/flux less SMT reflow soldering. Do you have any equipent/process recommendations? Does anybody use it for volume production and what are the constraints (finish, balls, paste, vacuum, pressure, size)? What is

HASL lead free thickness

Electronics Forum | Wed Nov 17 07:39:20 EST 2010 | jax

Most PCB manufacturers should be able to fall between 1.25um-5.00um for Pb-Free HASL. I doubt you will get anyone to agree to anything higher. If you are going to require an average thickness, make sure you also state "No Copper exposure allowed".


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