Phase Equilibria of the Sn-Ni-W Ternary System at 750°C

被引：0

作者：

Hermana, Gita Novian ^{[1
]}

Chang, Yen-Wei ^{[1
]}

Chen, Pei-Yu ^{[1
]}

Chiu, Chao-Wei ^{[1
]}

Yen, Yee-wen ^{[1
]}

机构：

[1] Natl Taiwan Univ Sci & Technol, Dept Mat Sci & Engn, 43 Sect 4,Keelung Rd, Taipei 106, Taiwan

来源：

2016 11TH INTERNATIONAL MICROSYSTEMS, PACKAGING, ASSEMBLY AND CIRCUITS TECHNOLOGY CONFERENCE (IMPACT-IAAC 2016) | 2016年

关键词：

Pb-free solder; Phase equilibria; Ni-Sn-W ternary system; Isothermal section; INTERFACIAL REACTIONS; KINETICS; ALLOYS;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Ni is commonly used as a barrier layer due to its lower reactivity with solders which combine with Sn. W can be used as a minor to reduce the intermetallic compounds (IMCs) material. Phase equilibria information plays a vital role to understand interfacial reaction. However, no phase diagram data of Ni-Sn-W is available in the literature. In this study, the alloys were experimentally investigated at temperature 750 degrees C for 720 h. Based on these three Ni-Sn, Ni-W and Sn-W binary phase diagrams, the Ni3Sn, Ni3Sn2, Ni3Sn4 and (Sn) phases in the Ni-Sn system, the (Ni), NiW2, NiW, Ni4W and (W) in the Ni-W binary system, and the liquid (L), and (L)+(W), and (W) in the Sn-W system are stable at 750 degrees C. The isothermal section of the Ni-Sn-W ternary system at 750 degrees C is composed of 9 single-phase regions, 13 two-phase regions, and 7 three-phase regions. Meanwhile, no ternary IMCs was found.

引用

页码：201 / 204

页数：4

共 20 条

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