Precision-induced localized molten liquid metal stamps for damage-free transfer printing of ultrathin membranes and 3D objects.

ABSTRACT: Transfer printing, a crucial technique for heterogeneous integration, has gained attention for enabling unconventional layouts and high-performance electronic systems. Elastomer stamps are typically used for transfer printing, where localized heating for elastomer stamp can effectively control the transfer process. A key challenge is the potential damage to ultrathin membranes from the contact force of elastic stamps, especially with fragile inorganic nanomembranes. Herein, we present a precision-induced localized molten technique that employs either laser-induced transient heating or hotplate-induced directional heating to precisely melt solid gallium (Ga). By leveraging the fluidity of localized molten Ga, which provides gentle contact force and exceptional conformal adaptability, this t

SUBMITTER: Shi C 

PROVIDER: S-EPMC11471857 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature