Ohmi Lab

AboutAbout the lab

Creating transistors with new structures.

The Ohmi Lab studies transistors with new structures.
The electronic devices around us are built by integrating a very large number of transistors made of silicon.
Using thin films of high-k and ferroelectric materials, the lab creates extremely small silicon devices, flexible organic semiconductor devices, and memory that retains data even when the power is turned off.

ResearchResearch themes

The lab researches the fabrication of devices with new structures using high-k and ferroelectric materials. It works on extremely small silicon devices, flexible organic semiconductor devices, and nonvolatile memory built from a single transistor.

*Illustrative image

Extremely small silicon devices↗

The lab studies techniques for forming hafnium-based high-k thin films on three-dimensional structures, methods for flattening silicon substrate surfaces at the atomic level, and the formation of silicide thin films with low contact resistance.

*Illustrative image

Flexible organic semiconductor devices↗

The lab studies n-type organic transistors that operate even in air by using an electron injection layer. It also works on top-gate CMOS circuits made from a single organic semiconductor.

*Illustrative image

One-transistor nonvolatile memory↗

This research concerns memory that can store data with a single transistor and retains it when the power is turned off. The lab works on hafnium-based MONOS transistors and transistors that use a ferroelectric as the gate.

VoicesStudent voices

Ratings and reviews reflect the experiences of individual current or former students, not the lab's official views. Whether a lab has reviews, or how many, says nothing about the lab itself.

Students who take part in an interview may receive a thank-you gift worth ¥1,000, regardless of what they say.