August 2016 Vol. 14 No. 882016

https://www.ntt-review.jp/archive/2016/201608.html

Front-line Researchers
Akira Fujiwara, Senior Distinguished Researcher,
NTT Basic Research Laboratories

Front-line Researchers

Akira Fujiwara, Senior Distinguished Researcher, NTT Basic
Research Laboratories▼Overview

Semiconductor technology—the backbone of information and communication
technology—has made amazing progress over the years, and more recently,
attention has come to focus on the ultimate-level control of single electrons andsingle atoms using nanofabrication and crystal-growth techniques. What kind ofbreakthroughs can we expect from NTT’s research on ultimate electronics? We
asked Dr. Akira Fujiwara, Senior Distinguished Researcher at NTT Basic ResearchLaboratories, to update us on recent research achievements and to tell us about hislife as a researcher.

Feature Articles
Forefront Research on Bio-soft
Materials

Feature Articles
Forefront Research on Bio-soft Materials

Overview of Bio-soft Material Research at NTT
Fabrication of Nanobiodevices that Utilize the Functionof Membrane Proteins
Pattern Formation of Supported Lipid Bilayer forMolecular Manipulation
Neuronal Growth on Artificial Structures with Different
Materials
Time-lapse Imaging of Neural Morphological Changes
Relating to Cellular Functions
On-chip Graphene Biosensor
Conductive Composite Material for Vital Data
Measurement▼AbstractRegular Articles
Substrate-transfer Technique Using h-BN for GaN-based High-power Transistors
Path Accommodation Design Engine for Simply and Reliably Designing Multi-layer Transport
Networks

Global Standardization Activities

Overview of Bio-soft Material Research at NTT
At NTT Basic Research Laboratories, we are aiming to create anovel nanobiointerface that allows direct access to the human bodyand brain by utilizing the functions and structures of biomoleculesand soft materials. We are also attempting to understand thefundamental principles of bioinformation processing by managing
the combination of nanotechnology and biotechnology. The Feature
Articles in this issue introduce our bio-soft material research inrelation to the fabrication of nanobiodevices, which constitute one of the components of a future artificial
synapse. We also present a highly sensitive and long-term stable biosensing system.

Regular Articles

Substrate-transfer Technique Using h-BN for GaN-based
High-power Transistors▼Abstract

We transferred AlGaN/GaN (aluminum gallium nitride/gallium nitride) highelectron mobility transistors from a sapphire substrate to a material withhigh thermal conductivity using a substratetransfer technique that involves
the use of an h-BN (hexagonal boron nitride) release layer. We succeededin suppressing the self-heating effect and obtained good power
performance in direct current characteristics. The transfer technique canovercome thermal problems in power transistors.

Path Accommodation Design Engine for Simply and Reliably
Designing Multi-layer Transport Networks

Trajectory of ITU-T Standardization and Key Issues at the ITU-T CJK CTO Meeting▼Abstract

Practical Field Information about Telecommunication
Technologies

Core and metro transport networks continue to be simplified with theadoption of 100-Gbit/s packet transport systems. In line with this, theengineering work involved in path accommodation design andmanagement is being carried out as a smooth flow, which is referred toas creating a flow-through operation. This article describes a multi-layertransport path accommodation design engine that takes into accountthe reliability demanded by each service in order to accommodate
optical and multigranular electrical paths from a few megabits per
second to 100 Gbit/s.

Recent Case Study of Fault in IP Phone User System