Electronics Forum | Thu Aug 25 04:55:32 EDT 2005 | Khoo Meng Tze, Freescale Malaysia
Hi, Whenever I'm measuring IMC using the optical microscope, I have to make sure that the images captured are clear. If not, then i will have an issue in differentiating the blurry areas between the IMC and solder(for example). This gives variatio
Electronics Forum | Sat Apr 11 09:56:31 EDT 2009 | davef
You're correct. You should expect to see an intermetallic layer in a proper solder connection. Try leaving the component at temperature for a longer period. Growth of intermetallic compounds on Cu surfaces [Klein Wassink]: d = 10^3(exp(-5*10^3/T)t^1
Electronics Forum | Mon Sep 18 18:17:56 EDT 2017 | chintan
IS there an IPC standard or equivalent which specifies the maximum thickness of intermetallic compounds (IMC) in a reliable solder joint?
Electronics Forum | Mon May 20 22:13:45 EDT 2013 | ultimatejoker
So u mean it is to form the intermetallic compound which is (Cu,Ni)6Sn5?
Electronics Forum | Thu Sep 21 20:59:55 EDT 2017 | davef
There is no standard minimum / maximum IMC thickness. * There needs to be an IMC * Thinner IMCs are preferred over thicker IMCs
Electronics Forum | Tue Oct 24 11:56:44 EDT 2017 | babymythird0421
As far as I know there is no standard thickness minimum or maximum thickness. It depends
Electronics Forum | Thu May 02 07:11:10 EDT 2002 | davef
They probably the same. Most likely someone is saying immersion gold [immersion Au] as a short hand for ENIG [ Electroless Nickel - Immersion Gold]. It is very uncommon to plate gold directly on copper, because gold and copper form a brittle interm
Electronics Forum | Thu Aug 24 13:18:24 EDT 2000 | Dave F
What are the primary indium (In) / tin (Sn) intermetallic compounds (IMC)? What are the drivers to the formation of In/Sn IMC? Copper / tin IMC are very bittle and, while necessary for proper solder connection formtion, are ment to be minimized. W
Electronics Forum | Thu Mar 28 14:04:16 EST 2002 | davef
Intermetalic Layer (IL). A compound formed at the interface of two different metals, whose atoms have an extremely high natural attraction for each other, so high, that they do not bond to other elements by any other means. Also, intermetalic compo
