Development of LTCC Materials with High Mechanical Strength

被引：21

作者：

Kawai, Shinya ^{[1
]}

Nishiura, Sousuke ^{[1
]}

Terashi, Yoshitake ^{[1
]}

Furuse, Tatsuji ^{[1
]}

机构：

[1] Kyocera Corp, R&D Ctr Kagoshima, San Diego, CA USA

来源：

3RD INTERNATIONAL CONGRESS ON CERAMICS (ICC3): ADVANCES IN ELECTRO CERAMICS | 2011年 / 18卷

关键词：

D O I：

10.1088/1757-899X/18/9/092013

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We have developed LTCC materials suitable for substrates of RF modules used in mobile phone. LTCC can provide excellent solutions to requirements of RF modules, such as down-sizing, embedded elements and high performance. It is also important that LTCC material has high mechanical strength to reduce risk of fracture by mechanical impact. We have established a method of material design for high mechanical strength. There are two successive steps in the concept to achieve high mechanical strength. The first step is to improve mechanical strength by increasing the Young's modulus, and the second step is either further improvement through the Young's modulus or enhancement of the fracture energy. The developed material, so called high-strength LTCC, thus possesses mechanical strength of 400MPa, which is twice as strong as conventional material whose mechanical strength is approximately 200MPa in typical. As a result, high-strength LTCC shows an excellent mechanical reliability, against the drop impact test for example. The paper presents material design and properties of LTCC materials.

引用

页数：4