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Bernhard Wunderle
Researcher at Chemnitz University of Technology
Publications - 309
Citations - 2673
Bernhard Wunderle is an academic researcher from Chemnitz University of Technology. The author has contributed to research in topics: Delamination & Temperature cycling. The author has an hindex of 20, co-authored 272 publications receiving 2337 citations. Previous affiliations of Bernhard Wunderle include Fraunhofer Society.
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Proceedings ArticleDOI
Lifetime modeling of copper metallization for SiC power electronics
TL;DR: In this article , the intrinsic stress of annealed ECD copper and sputtered aluminum layers is characterized using nanoindentation measurements in combination with reverse simulation to fit material models, showing that higher strength and stain hardening in copper layers reduces the fatigue damage on free surfaces.
Proceedings ArticleDOI
Thermo-mechanical reliability of sintered all-Cu electrical fine pitch interconnects under isothermal fatigue testing benchmarked against soldered and TLP-bonded SnAg3.5 joints
Akhil Kumar,Uwe Zschenderlein,Mario Baum,Thomas Brunschwiler,Daniel Nilsen Wright,Bernhard Wunderle +5 more
TL;DR: In this paper, failure analysis of sintered (neck-based) All-Cu electrical interconnects (NEI) along with soldered SnAg3.5 and transient liquid phase bonded (TLPB) specimens which form an SnCu intermetallic (IMC) and are used in a homogenous Si-Si flip chip assembly for fine pitch interconnect.
Proceedings ArticleDOI
Nanomechanics of CNTs for Sensor Application
Christian Wagner,Steffen Hartmann,Bernhard Wunderle,Jörg Schuster,Stefan E. Schulz,Thomas Gessner +5 more
TL;DR: Here, the prediction of the tight binding model for suitable CNTs is presented, built from density functional theory (DFT), compared with results of molecular dynamics (MD) that describes the mechanics of carbon nanotubes in a parameterized way.
Proceedings ArticleDOI
Wafer-level technology for integration of carbon nanotubes into micro-electro-mechanical systems
Jens Bonitz,Simon Böttger,Sascha Herrmann,Stefan E. Schulz,Thomas Gessner,Steffen Hartmann,Bernhard Wunderle +6 more
TL;DR: A holistic wafer-level manufacturing process for nanoscopic sensor devices based on individualized single-wall carbon nanotubes (SWCNTs) integrated in MEMS is presented.
Proceedings ArticleDOI
High-Cycle Fatigue Testing of thin Metal Films on MEMS Cantilever
TL;DR: In this paper , a method for accelerated stress testing and lifetime modelling of thin aluminium films in the high-cycle fatigue regime by isothermal mechanical loads using Si MEMS cantilevers as sample carriers is presented.