Tensile mechanical properties of sintered porous silver films and their dependence on porosity

被引：20

作者：

Wakamoto, Keisuke ^{[1
]}

Mochizuki, Yo ^{[2
]}

Otsuka, Takukazu ^{[1
]}

Nakahara, Ken ^{[1
]}

Namazu, Takahiro ^{[2
]}

机构：

[1] ROHM Co Ltd, Power Device R&D Dept, Kyoto 6158585, Japan

[2] Aichi Inst Technol, Dept Mech Engn, Toyota, Aichi 4700392, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS | 2019年 / 58卷 / SD期

关键词：

DEFORMATION-BEHAVIOR; DIE-ATTACH; NANOSCALE SILVER; JOINTS;

D O I：

10.7567/1347-4065/ab0491

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

This paper investigates the porosity-dependent tensile mechanical properties of porous silver films that are 8-10 mu m thick. The silver films are fabricated with a pressure press; the use of different pressures changes the porosity (p) in the range of 5% to 25%. p is determined using scanning electron microscopy cross-sectional images of the films. Stress-strain (S-S) curves are obtained by tensile tests performed on the porous and bulk silver films. The conventional ductile plateau disappears from the porous films. Augmented ultimate tensile strength and a smaller breaking strain occur when p is in the range 6%-14%. (C) 2019 The Japan Society of Applied Physics

引用

页数：5

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