Electronics Forum | Wed Sep 10 12:56:09 EDT 2003 | davef
Intermetallic compounds [IMC]: * Form during the alloying process of some metals. In soldering these are Sn, Ni, Ag, Cu, Au. * Do not accept solder. * Increase in depth in logarithmic proportion to both time and temperature. [So during the solder
Electronics Forum | Thu Dec 08 07:55:16 EST 2005 | davef
Your understanding of the situation is correct. In both cases, you solder to the nickel. The gold [Au] protects the nickel from oxidation. When soldering, the gold moves into solution in the solder and forms an intermetallic compound [IMC] with th
Industry News | 2018-11-14 15:48:25.0
Indium Corporation will feature its ultra-reliable Indium8.9HF Solder Paste series at IPC APEX EXPO 2019, Jan. 29-31, in San Diego, California, USA.
Industry News | 2011-05-19 17:07:57.0
Indium Corporation's Vice President of Technology Dr. Ning-Cheng Lee will teach a professional development course at the Electronic Components and Technology Conference (ECTC) in Lake Buena Vista, Florida, May 31-June 3, 2011.
Technical Library | 2019-01-02 21:51:49.0
Failed solder joints remain a constant source of printed circuit board failure. Soldering is the bonding of metallic surfaces via an intermetallic compound (IMC). The interaction between thermal energy delivery, flux chemistry, and solder chemistry creates the solder bond or joint. Today, reliability relies on visual inspection; operator experience and skill, control of influencers e.g. tip geometry, tip temperature, and collection and analysis of process data. Each factor involved with the formation of the solder joint is an element of risk and can affect either throughput or repeatability. Mitigating this risk in hand soldering requires the identification of these factors and a means to address them.
Technical Library | 2018-05-17 11:14:52.0
Intermetallic compound (IMC) growth is being studied in earnest in this past decade because of its significant effect the solder joint reliability. It appears that from numerous investigations conducted, excessive growth of IMC could lead to solder joint failure. Leading to this, many attempts has been made to determine the actual IMC thickness. However, precise and true representation of the growth in the actual 3D phenomenon from 2D cross-section investigations has remained unclear. This paper will focus on the measuring the IMC thickness using 3D surface profilometer (Alicona Focus G4). Lead free solder, Sn3.0Ag0.5Cu (SAC305) was soldered onto copper printed circuit board (Cu PCB). The samples were then subjected to thermal cycle (TC) storage process with temperature range from 0 °C to 100 °C for 200 cycles and up to 1000 cycles were completed.
SMTnet Express, May 17, 2018, Subscribers: 31,044, Companies: 10,939, Users: 24,723 Statistical Aspect on the Measuring of Intermetallic Compound Thickness of Lead Free Solders Azman Jalar, Maria Abu Bakar, Roslina Ismail, Abdul Razak Daud
Heller Industries Inc. | https://hellerindustries.com/wp-content/uploads/2018/07/pan_APEX06.pdf
(Note that in SnPb solder joint, Cu6Sn5 present at the interface between SnPb solder and the Cu pad) and Ag3Cu intermetallic compound (IMC
ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/divisions/efd/resource-center/solder-glossary-of-terms
. Burn In The functional operation of components or assemblies, as a test for defects or failure prior to putting into use. C Capillary Action The ability of a liquid to flow in narrow spaces independent of external forces like gravity
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