Micromachined structures decoupling Joule heating and electron wind force.

ABSTRACT: Microstructural changes in conductive materials induced by electric current treatments, such as electromigration and electroplasticity, are critical in semiconductor and metal processing. However, owing to the inevitable thermal effect (Joule heating), the athermal effect on microstructural modifications remains obscure. This paper presents an approach of utilizing pre-micromachined structures, which obstruct current flow but maintain a thermal history similar to that of the matrix, effectively disentangling the thermal and athermal effects. A duplex stainless-steel material is selected to validate the feasibility of this method. Microstructural characterizations show that the athermal effect, especially the electron wind force (EWF), primarily governs the element diffusion and phase trans

SUBMITTER: Gu S 

PROVIDER: S-EPMC11258259 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature