Thermal performance characterization of nano thermal interface materials after power cycling
Paper i proceeding, 2012

The need for faster, smaller, and more reliable and efficient products has resulted in increase of heat generated in microelectronic components. The removal of the heat generated is an important issue in electronic packaging. A novel Nano-TIM was developed to improve the heat dissipation of electronics packaging. This paper aims at studying the heat dissipation performance of a new class of nano-structured polymer-metal composite film (Nano-TIM) after power cycling. The new Nano-TIM uses metal to provide continuous thermal pathways while using nano-polymer to control the elasticity of the TIM. Through semiconductor processing and RTD principle, chips including 5*5, 10*10, 20*20, 30*30 (mm 2), were developed to study different size's influence on heat dissipation effect of the Nano-TIM. Additional parameters studied include power effect. RTD is used respectively to measure the junction temperature, and then the R thJC (Junction-to-Case Thermal Resistance) is calculated afterwards. The Transient thermal resistances of the Nano-TIM were also tested by T3Ster method to further study heat dissipation effect of Nano-TIM. The morphologies and interaction between the Nano-TIM and chips were carefully studied using X-ray Scanning Microscope to analyze heat flow path. The result shows that Nano-TIMs can be used to 30 mm in chip length as the thermal interface material.

Different sizes

Polymer-metal composite

Power cycling

Electronic Packaging

Transient thermal resistance

Power effects

X ray scanning

Thermal Performance

Thermal interface materials

Heat flow path

Dissipation effects

Junction temperatures

Microelectronic components



Semiconductor processing


S. Sun

Shanghai University

L. Xin

Chalmers University of Technology

Shanghai University

Carl Zandén

Chalmers, Mikroteknologi och nanovetenskap (MC2), Elektronikmaterial och system

Björn Carlberg

Chalmers, Mikroteknologi och nanovetenskap (MC2), Elektronikmaterial och system

L. Ye

SHT Smart High-Tech

Johan Liu

Chalmers, Mikroteknologi och nanovetenskap (MC2), Elektronikmaterial och system

Proceedings - Electronic Components and Technology Conference

0569-5503 (ISSN)



Elektroteknik och elektronik