ICSR (Soldering and Reliability) Conference Proceedings


New Lead-Free Alloy for High Reliabilty, High Operating Temperature Applications

Authors: Pritha Choudhury, Morgana Ribas, Anil Kumar, Sutapa Mukherjee, Siuli Sarkar, Ranjit Pandher, Rahul Raut, Bawa Singh, and Ravi Bhatkal
Company: Alpha
Date Published: 5/13/2014   Conference: ICSR (Soldering and Reliability)


Abstract: In this paper, we present details of a very systematic study undertaken for the development of lead-free and RoHS compliant alloy for high operating temperature applications. Currently, Innolot is one of the most suitable alloy for such ultra-high reliability requirements, such as, Automotive and high CTE mis-match applications. The aim of this study was to develop a new lead-free alloy with improved thermal and electrical properties when compared to standard Innolot. This paper summarizes basic alloy properties, including mechanical, thermal and electrical properties of a set of these new lead-free alloys. Overall, the new alloys present significant enhancements in metallurgical properties and soldering properties for SMT assembly.

Key Words: 

Lead-free, High Reliability, CTE Mismatches, Solder Alloy



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