Optimal design of coating material for nanoparticles and its application for low-temperature interconnection

Metal nanoparticles need coating material so as to avoid aggregating to each other. On the contrary, there are occasions when the coating materials are required to be removed. Here, a theoretical model to relate removability of coating materials to their molecular structure is suggested. The model is used to find an optimum coating material, secondary amine, for use in low-temperature interconnection material. An interconnection made of methyloctylamine-coated silver nanoparticles was formed between a pair of copper electrodes by heating and pressurizing the nanoparticles and electrodes at 250 °C and 2.5 MPa, respectively, for 150 s. Shear strength and thermal conductivity of the formed interconnection were 17.8 MPa and 219 W/mK, respectively. This thermal conductivity value is greater than that obtained using Pb–Sn and silver solders.

[1]  M. Sastry,et al.  Electrostatically Controlled Organization of Carboxylic Acid Derivatized Colloidal Silver Particles on Amine-Terminated Self-Assembled Monolayers , 2000 .

[2]  I. Hatta,et al.  Development of ac Calorimetric Method for Thermal Diffusivity Measurement. II. : Sample Dimension Required for the Measurement , 1987 .

[3]  Stephane Evoy,et al.  Sintering of Silver Nanoparticles for the Formation of High Temperature Interconnect Joints , 2006 .

[4]  Sehee Lee,et al.  Interaction between the surface of the silver nanoparticles prepared by γ-irradiation and organic molecules containing thiol group , 2003 .

[5]  G. U. Kulkarni,et al.  Thiol-Derivatized Nanocrystalline Arrays of Gold, Silver, and Platinum , 1997 .

[6]  V. A. Sankaran,et al.  Power electronics in electric vehicles: challenges and opportunities , 1993, Conference Record of the 1993 IEEE Industry Applications Conference Twenty-Eighth IAS Annual Meeting.

[7]  K. Lance Kelly,et al.  Chain Length Dependence and Sensing Capabilities of the Localized Surface Plasmon Resonance of Silver Nanoparticles Chemically Modified with Alkanethiol Self-Assembled Monolayers , 2001 .

[8]  P. Neudeck,et al.  High-temperature electronics - a role for wide bandgap semiconductors? , 2002, Proc. IEEE.

[9]  Meng-Hui Li,et al.  Heat Capacity of Alkanolamines by Differential Scanning Calorimetry , 1999 .

[10]  Guo-Quan Lu,et al.  Low-Temperature Sintered Nanoscale Silver as a Novel Semiconductor Device-Metallized Substrate Interconnect Material , 2006, IEEE Transactions on Components and Packaging Technologies.

[11]  E. Liang,et al.  Surface-enhanced Raman spectroscopy of p-aminobenzoic acid with excitation in the visible and near infrared spectral region , 1993 .

[12]  M. Mahalingam.  Thermal management in semiconductor device packaging , 1985, Proceedings of the IEEE.

[13]  M. Sastry,et al.  Langmuir−Blodgett Films of Carboxylic Acid Derivatized Silver Colloidal Particles: Role of Subphase pH on Degree of Cluster Incorporation , 1997 .

[14]  R. Madix,et al.  Cleavage of NH bonds by active oxygen on Ag(110): II. Selective oxidation of ethylamine to acetonitrile , 1990 .

[15]  Motoi Tobita,et al.  Theoretical and Experimental Vibrational Characterizations of Amine-Coated Silver Nanoparticles , 2008 .

[16]  Robert E. Cohen,et al.  Polyelectrolyte Multilayer Nanoreactors for Preparing Silver Nanoparticle Composites: Controlling Metal Concentration and Nanoparticle Size , 2002 .

[17]  Xu Chen,et al.  Low-temperature and Pressureless Sintering Technology for High-performance and High-temperature Interconnection of Semiconductor Devices , 2007, 2007 International Conference on Thermal, Mechanical and Multi-Physics Simulation Experiments in Microelectronics and Micro-Systems. EuroSime 2007.

[18]  Mari Yamamoto,et al.  Size-controlled synthesis of monodispersed silver nanoparticles capped by long-chain alkyl carboxylates from silver carboxylate and tertiary amine. , 2006, Langmuir : the ACS journal of surfaces and colloids.

[19]  Mari Yamamoto,et al.  Facile size-regulated synthesis of silver nanoparticles by controlled thermolysis of silver alkylcarboxylates in the presence of alkylamines with different chain lengths. , 2006, Journal of colloid and interface science.