Electronics Forum: 1a33 deg c (Page 7 of 44)

SAC solder balls reflow with Sn/Pb paste - Voids Issue

Electronics Forum | Wed Oct 04 16:14:17 EDT 2006 | inds

what is your peak temp.. if you try to go too high say 225-230 deg C there is a fair chance of seeing voids.. depending on your ball size and paste volume you can get a good collapse at temps below 225deg C...

Weller Desoldering Tweezers

Electronics Forum | Thu Oct 04 09:21:35 EDT 2007 | dj_jago

We use copper grease on the bolts of our wave solder machines solder pot. The working temperature is up to 1000degC. I believe that the boiling point of mineral oil is a little over 300degC and you will exceed this with iron temperatures, especially

Strange things ocuring during reflow...

Electronics Forum | Thu Feb 18 14:34:39 EST 2010 | jlawson

I have also seen on Heller ovens (even new ones EXL series) cross profile temperature differences over their spec of +/- 3 deg C, sometimes up to 7-10 deg C, 200-230mm from fixed rail. This can cause funny issues , profiling can cover this up and not

HMP hand soldering.

Electronics Forum | Tue Aug 23 12:13:02 EDT 2011 | richieoreilly

Hi, We are currently having issues with hand soldering High melting point solder wire. Can anyone give a few tips. We are Preheating boards to 120 deg C and using soldering irons @ 410 deg C. The quality is ok but the ts taking 20-30 seconds to c

microphoe low sensitivity

Electronics Forum | Mon Oct 12 01:17:00 EDT 2020 | SMTA-64386317

Hi, I am facing high fall out of microphone low sensitivity issues. This microphone is soldering thru SMT soldering with low peak temperature profile which peak at 232 DegC to 240 DegC and have skipped X-Ray inspection but still seeing fall out espec

Maxim 3296C, 3286C

Electronics Forum | Sun May 12 21:45:10 EDT 2002 | ianchan

Hi Dave, we tried the net search. anything close to the part no. draws only the "reliability data sheets" with a small print ref to JSTD-020 standards. this implies a 215deg-C @3 cycles of Reflow Oven processing. however as this can be claimed as a

Pb-free wave soldering with SMD

Electronics Forum | Sat Nov 26 05:55:04 EST 2005 | milroyperera

Hi, Does any body have the experience with wave soldering a "Gold" plated PCB with SMD assembled on it? I`m experiencing massive bridging,icicles,Shadowing & Skipping. The present soldering angle is 6 deg:,pre heating rate is 2 deg/sec , Dwell time

Cracks on ceramic capacitors.

Electronics Forum | Mon Jul 07 00:11:10 EDT 2003 | praveen

if the capacitors are placed very near to the edge and their position is 90 deg than it may cause crack.4thly if the reflow ramp rate is more than 3 deg C then it may crack. 5th ly if the solderin tip temp. is very high and soldering bit is very thi

Delta T

Electronics Forum | Mon May 20 08:57:00 EDT 2013 | kumar_antom

Hi there.... Appreciate your info on this.As mentioned,the recommended delta T between heating zones is less than 40 degrees C... Means that the Setting temperature between zones must be less than 40 deg C ? Sorry Thanks Rajesh Kumar

ESS Test Equipment

Electronics Forum | Thu Jul 18 15:25:33 EDT 2013 | ejurentkuff

I'm looking for temperature cycling only, that can ramp 25 degrees C/min. Standard operating range, -70 to 170 deg C. chamber size roughly 24 to 30 inches.


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