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Updated: Jun 17, 2026

Prescribed 3-D Direct Writing of Suspended Micron/Sub-micron Scale Fiber Structures via a Robotic Dispensing System

Prescribed 3-D Direct Writing of Suspended Micron/Sub-micron Scale Fiber Structures via a Robotic Dispensing System

Published on: June 12, 2015

Laser direct writing using submicron-diameter fibers.

Feng Tian¹, Guoguang Yang, Jian Bai

¹State Key Laboratory of Modern Optical Instrumentation, Department of Optical Engineering, Zhejiang University, Hangzhou 310027, China.

|December 10, 2009

Summary

A new direct writing method uses submicron fibers for high-resolution patterning. This technique achieves 350-nm resolution, enabling the fabrication of complex microstructures with controllable line widths.

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Area of Science:

Materials Science
Nanotechnology
Microfabrication

Background:

Direct writing techniques are crucial for fabricating micro- and nanoscale structures.
Existing methods often face limitations in resolution, process complexity, or writing area.

Purpose of the Study:

To introduce a novel direct writing technique utilizing submicron-diameter fibers.
To analyze the energy distribution of the proposed direct writing model.
To demonstrate the capabilities and advantages of submicron fiber direct writing.

Main Methods:

Development of a direct writing technique employing submicron-diameter fiber probes.
Utilization of micro touch mode for the writing process.
Analysis of the energy distribution using the Three-Dimension Finite-Difference Time-Domain (3D-FDTD) method.

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Last Updated: Jun 17, 2026

Prescribed 3-D Direct Writing of Suspended Micron/Sub-micron Scale Fiber Structures via a Robotic Dispensing System

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Main Results:

Achieved a resolution of 350 nm, surpassing the 442-nm wavelength limit.
Demonstrated a simple fabrication process with a large writing area.
Showcased controllable line widths and the ability to create complex submicron patterns by altering writing direction.

Conclusions:

Submicron fiber direct writing offers a promising approach for high-resolution microfabrication.
The technique provides advantages in simplicity, resolution, scalability, and pattern complexity.
This method facilitates the creation of intricate submicron patterns for various applications.