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Printing Morphology and Rheological Characteristics of Lead-Free Sn-3Ag-0.5Cu (SAC) Solder Pastes

Printing Morphology and Rheological Characteristics of Lead-Free Sn-3Ag-0.5Cu (SAC) Solder Pastes

Sharma, Ashutosh, Mallik, Sabuj, Ekere, N. and Jung, Jae-Pil (2014) Printing Morphology and Rheological Characteristics of Lead-Free Sn-3Ag-0.5Cu (SAC) Solder Pastes. Journal of the Microelectronics and Packaging Society, 21 (4). pp. 1-13. ISSN 1226-9360 (Print), 2287-7525 (Online) (doi:10.6117/kmeps.2014.21.4.001)

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Abstract

Solder paste plays a crucial role as the widely used joining material in surface mount technology (SMT).The understanding of its behaviour and properties is essential to ensure the proper functioning of the electronic assemblies.The composition of the solder paste is known to be directly related to its rheological behaviour. This paper provides a brief overview of the solder paste behaviour of four different solder paste formulations, stencil printing processes, and techniques to characterize solder paste behaviour adequately. The solder pastes are based on the Sn-3.0Ag-0.5Cu alloy,are different in their particle size, metal content and flux system. The solder pastes are characterized in terms of solder particle size and shape as well as the rheological characterizations such as oscillatory sweep tests, viscosity, and creep
recovery behaviour of pastes.

Item Type: Article
Additional Information: © 2014, The Korean Microelectronics and Packaging Society (in Korean)
Uncontrolled Keywords: Solder paste, Flip chip packaging, Rheology, Stencil printing, Viscosity
Faculty / Department / Research Group: Faculty of Engineering & Science > Design, Manufacturing and Innovative Products Research Theme
Last Modified: 01 Aug 2017 08:52
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
URI: http://gala.gre.ac.uk/id/eprint/13241

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