Related Experiment Video
Updated: Mar 18, 2026
08:45
Micro-masonry for 3D Additive Micromanufacturing
Published on: August 1, 2014
10.9K
Novel Self-shrinking Mask for Sub-3 nm Pattern Fabrication.
Po-Shuan Yang1, Po-Hsien Cheng1, C Robert Kao1
1Department of Materials Science and Engineering, National Taiwan University, 1, Roosevelt Road, Sec. 4, Taipei, 106, ROC Taiwan.
Scientific Reports
|July 13, 2016
Summary
A novel self-shrinking dielectric mask (SDM) enables sub-3nm pattern fabrication for advanced devices. This technique offers high throughput and precise nanoscale patterning, overcoming limitations of conventional lithography.
Area of Science:
- Materials Science
- Nanotechnology
- Lithography
Background:
- Conventional lithography struggles to achieve sub-3nm patterns essential for next-generation devices.
- High-performance nanosensing, photonic, and computing applications demand extreme nanoscale fabrication capabilities.
Purpose of the Study:
- To introduce a novel concept, the self-shrinking dielectric mask (SDM), for fabricating sub-3nm patterns.
- To demonstrate a new method for achieving ultra-fine nanopatterns beyond the limits of current lithography.
Main Methods:
- The self-shrinking dielectric mask (SDM) method utilizes a hard dielectric mask that shrinks critical dimensions during ion irradiation.
- This approach avoids the need for extreme focusing of electron/ion beams or light.
Main Results:
- Achieved a linewidth as low as 2.1nm with a high aspect ratio in the sub-10nm scale.
- Demonstrated simultaneous fabrication of numerous patterns with assorted shapes.
- Exhibited significantly higher throughput compared to conventional ion beam lithography.
Conclusions:
- The SDM method provides a viable solution for fabricating sub-3nm patterns.
- This technique is widely applicable to fields requiring extreme nanoscale fabrication, including nanosensing, photonics, and computing.
- SDM offers a high-throughput alternative to conventional lithography for advanced nanoscale manufacturing.
