AI Article Synopsis
- The "Sketch and Peel" lithography (SPL) is a new method for quickly and accurately creating metallic patterns ranging from nanometers to submillimeters using direct writing technology.
- SPL uses pre-sketched outlines as templates to selectively peel off a layer of evaporated metal, greatly enhancing patterning efficiency and reducing issues seen in traditional writing techniques.
- The process can produce complex hierarchical metallic structures with features as small as about 15 nanometers, making it promising for applications in nanoelectronics and nano-optics.
Article Abstract
We report a unique lithographic process, termed "Sketch and Peel" lithography (SPL), for fast, clean, and reliable patterning of metallic structures from tens of nanometers to submillimeter scale using direct writing technology. The key idea of SPL process is to define structures using their presketched outlines as the templates for subsequent selective peeling of evaporated metallic layer. With reduced exposure area, SPL process enables significantly improved patterning efficiency up to hundreds of times higher and greatly mitigated proximity effect compared to current direct writing strategy. We demonstrate that multiscale hierarchical metallic structures with arbitrary shapes and minimal feature size of ∼15 nm could be defined with high fidelity using SPL process for potential nanoelectronic and nano-optical applications.
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| http://dx.doi.org/10.1021/acs.nanolett.6b00788 | DOI Listing |
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