Effect of Fiber Concentration on Mechanical and Thermal Properties of a Solder Matrix Fiber Composite Thermal Interface Material
Artikel i vetenskaplig tidskrift, 2019

Increased demand on the mechanical and thermal properties on the thermal interface and die attach material creates a demand for materials with tailored material properties. Solder matrix fiber composites (SMFCs) have been shown to address these challenges, but have, so far, required complicated procedures and components. In this paper, we present the fabrication of a new type of SMFC based on commercially available fiber networks infiltrated with Sn-Ag-Cu alloy (SAC305) or indium using equipment for large-volume production. The composite material exhibits similar thermal properties compared to pure solder, and mechanical properties that can be tailored toward specific applications. We also show that the handling properties of the SMFC allows it to be used in process flows where multiple reflow cycles are required and can achieve a well-defined bond line thickness (BLT) and good bonding using fluxless reflow under pressure.

thermal management

Bond line thickness (BLT) control

thermal interface materials (TIMs)

solder

die attach

Författare

Josef Hansson

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

Torbjörn Nilsson

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

L. Ye

SHT Smart High-Tech

Johan Liu

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

IEEE Transactions on Components, Packaging and Manufacturing Technology

2156-3950 (ISSN)

Vol. 9 6 1045-1053 8701667

Nanoteknikstödd tillverkning av högpresterande sinterstål

Stiftelsen för Strategisk forskning (SSF), 2016-01-01 -- 2020-12-31.

Kolbaserat höghastighet 3D GaN elektroniksystem

Stiftelsen för Strategisk forskning (SSF), 2014-03-01 -- 2019-06-30.

Pilot line production of functionalized CNTs as thermal interface material for heat dissipation in electronics applications (SMARTHERM)

Europeiska kommissionen (Horisont 2020), 2016-01-01 -- 2018-12-31.

Styrkeområden

Produktion

Ämneskategorier

Polymerteknologi

Textil-, gummi- och polymermaterial

Kompositmaterial och -teknik

DOI

10.1109/TCPMT.2019.2913690

Mer information

Senast uppdaterat

2019-07-15