TIMs for transfer molded power modules: Characterization, reliability, and modeling

Sitta, Alessandro; Mauromicale, Giuseppe; Malgioglio, Giuseppe Luigi; Amoroso, Davide Maria; Schifano, Biagio; Calabretta, Michele; Sequenzia, Gaetano

doi:10.1016/j.microrel.2023.115162

Cited by 1 publication

(1 citation statement)

References 16 publications

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“…Through theoretical calculations and experiments, interface thermal resistance has been effectively reduced. Therefore, this shift imposes greater demands on the thermal conductivity capabilities of thermal interface materials (TIMs) [3][4][5][6]. Silicone rubber (SIR) is widely selected as the matrix material for TIMs due to its wide viscosity range, adjustable hardness, high insulation, good filler compatibility, and excellent reliability [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Boron Nitride/Carbon Fiber High-Oriented Thermal Conductivity Material with Leaves–Branches Structure

Shu,

Sun,

Huang

et al. 2024

Materials

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In the realm of thermal interface materials (TIMs), high thermal conductivity and low density are key for effective thermal management and are particularly vital due to the growing compactness and lightweight nature of electronic devices. Efficient directional arrangement is a key control strategy to significantly improve thermal conductivity and comprehensive properties of thermal interface materials. In the present work, drawing inspiration from natural leaf and branch structures, a simple-to-implement approach for fabricating oriented thermal conductivity composites is introduced. Utilizing carbon fibers (CFs), known for their ultra-high thermal conductivity, as branches, this design ensures robust thermal conduction channels. Concurrently, boron nitride (BN) platelets, characterized by their substantial in-plane thermal conductivity, act as leaves. These components not only support the branches but also serve as junctions in the thermal conduction network. Remarkably, the composite achieves a thermal conductivity of 11.08 W/(m·K) with just an 11.1 wt% CF content and a 1.86 g/cm3 density. This study expands the methodologies for achieving highly oriented configurations of fibrous and flake materials, which provides a new design idea for preparing high-thermal conductivity and low-density thermal interface materials.

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