Research on reliability of Sn-1.0Ag-0.5Cu low-Ag lead-free solder alloy

Author

Yating Hu ; Bing An ; Rong Chen ; Weiwen Lv ; Yiping Wu

Author_Institution

Sch. of Mater. Sci. & Eng., Huazhong Univ. of Sci. & Technol., Wuhan, China

fYear

2014

fDate

12-15 Aug. 2014

Firstpage

401

Lastpage

404

Abstract

The main objective of this paper is to investigate the reliability of Sn-1.0Ag-0.5Cu low-Ag lead-free solder alloy. The wettability, mechanical property and microstructure of Sn-1.0Ag-0.5Cu (SAC105) and Sn-3.0Ag-0.5Cu (SAC305) lead-free solder alloys were comparatively investigated. Experimental studies have shown that the wetting property of low-Ag lead-free solder alloy SAC105 remains to be improved and mechanical strength is lower to SAC305, but its anti-drop and anti-shock performance are outstanding. Though the wetting property of SAC105 is inferior to SAC305, the melting point and wettability of SAC105 can meet the actual reliability requirements of products. Matched with appropriate process, low-Ag lead-free solder can also form reliable solder joints to meet the reliability standards in industrial production.

Keywords

copper alloys; mechanical properties; melting; reliability; silver alloys; solders; tin alloys; wetting; SAC105; SAC305; Sn-Ag-Cu; lead free solder alloy reliability; mechanical property; melting point; solder alloy microstructure; wettability property; Lead; Mechanical factors; Microstructure; Reliability; Soldering; Standards; SAC105; lead-free solder; low-Ag; reliability;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronic Packaging Technology (ICEPT), 2014 15th International Conference on

Conference_Location

Chengdu

Type

conf

DOI

10.1109/ICEPT.2014.6922682

Filename

6922682