Title :
Investigation of electrical properties of contacts made of materials based on sintered nano-Ag particles
Author :
Urbanski, Krzysztof Jerzy ; Falat, Tomasz ; Matkowski, Przemysław ; Szczerba, Marcin ; Felba, Jan ; Moscicki, A.
Author_Institution :
Fac. of Microsyst. Electron. & Photonics, Wroclaw Univ. of Technol., Wroclaw, Poland
Abstract :
In this paper preliminary investigations of electrical properties of new Thermal Interface Materials (TIMs´) are presented and discussed. Investigated TIMs are based on mixture of silver flakes and silver nano-particles (nano-Ag) with high content of silver (more than 90% weight). After curing and sintering of such materials, as a result, a bulk, homogenous silver layer with good electrical and mechanical properties is formed. This makes those materials suitable for high-power electronics since both thermal and electrical conductivity of the bulk silver is very high (429 W·m-1·K-1). What makes investigated materials very valuable is a relatively low temperature of sintering process (typ. 120-150°C).
Keywords :
curing; electrical conductivity; electrical contacts; mixtures; nanofabrication; nanoparticles; silver; sintering; thermal conductivity; Ag-Ag; bulk layer; curing; electrical conductivity; electrical properties; high-power electronics; homogenous silver layer; mechanical properties; mixture; silver flakes; silver nanoparticles; sintered nanoparticles; temperature 120 degC to 150 degC; thermal conductivity; thermal interface materials; Electrical resistance measurement; Inspection; Junctions; Materials; Mechanical factors; Resistance; Silver;
Conference_Titel :
Electronics Technology (ISSE), Proceedings of the 2014 37th International Spring Seminar on
Conference_Location :
Dresden
DOI :
10.1109/ISSE.2014.6887602
