HIGO Akio Project Lecturer
Hongo Campus
Systems & Electronics
Nano/Microsystems
Electron device/Electronic equipment
Intelligent mechanics/Mechanical systems
Photonic NEMS/MEMS by using High-throughput and High-precision Electron Beam Lithography
In the optical information society, devices are becoming larger and larger. Usually, nanostructures are drawn in a small area by electron beam lithography. This research aims to realize photonic NEMS/MEMS devices using the character projection method, which draws high-throughput and high-resolution.
Research field 1
Study on Character Projection Method for High-Resolution and High-throughput Electron Beam Lithography for Photonic Devices
Three electron beam lithography techniques have been proposed and realized practical use: the point beam method, the variable-shaped beam (VSB) method, and the character projection (CP) method. The VSB method, which draws variable rectangular patterns, is mainly used to achieve high precision and throughput, but rectangles approximate the pattern edges. In contrast, using the CP method, which can draw basic patterns such as circles and triangles in advance, like stamping, we will realize photonic nanodevices and nanostructures through high-resolution and high-speed large-area drawing for future information society.