Mitigation of Sn Whisker Growth by Small Bi Additions

Autor: Kyoko Hamasaki, Shijo Nagao, Masanobu Tsujimoto, Katsuaki Suganuma, Tohru Sugahara, Jung-Lae Jo
Rok vydání: 2013
Předmět:
Zdroj: Journal of Electronic Materials. 43:1-8
ISSN: 1543-186X
0361-5235
DOI: 10.1007/s11664-013-2706-9
Popis: In this study, the morphological development of electroplated matte Sn and Sn-xBi (x = 0.5 wt.%, 1.0 wt.%, 2.0 wt.%) film surfaces was investigated under diverse testing conditions: 1-year room-temperature storage, high temperature and humidity (HTH), mechanical loading by indentation, and thermal cycling. These small Bi additions prevented Sn whisker formation; no whisker growth was observed on any Sn-xBi surface during either the room-temperature storage or HTH testing. In the indentation loading and thermal cycling tests, short (
Databáze: OpenAIRE