JP – Page 10 – TechConnect Briefs

Photo-induced Surface Modification of Polyimides for Printable Electronics Fablication

Yamashita T., Kodara F., Mino M., Matsuzawa Y., Okano K., Tokyo University of Science, JP

Manufacturing devices with printing technique is one of the key steps in developing printable and flexible electronics or photonics technology. But printing fine structure with ink jet technique is relatively limited because positional precision and [...]

Measurement of liquid properties by the observation of micro droplet emitted by inkjet

Yamada T., Sakai K., Institute of Industrial Science, the University of Tokyo, JP

The application of inkjet printing to industrial processes such as microfabrication, bioengineering is attracting great attention these days. These processes involve large shear deformation of micro-scale and complex liquid, therefore, the importance to measure properties [...]

A Novel Method to Maintain Alignment Accuracy in Bonding Process Utilizing Resin as an Adhesive Material

Lee S.S., Kondo M., Ishibashi R., Kinoshita K., Kishida S., Tottori University, JP

In this paper we have firstly reported that a novel method to maintain alignment accuracy in wafer bonding process utilizing resin as an adhesive material. We have proposed tentatively localized bonding method with 1100 nm [...]

The concept of a superconductor of man-made 1D superlattice

Inoue A., Japan Atomic Energy Agency, JP

It is well-known that man-made 1D superlattice structure (for instance, GaAs-Ga1-xAlxAs prepared with alternating epitaxy) exhibits a resonant tunneling phenomenon. The mean free path of an electron is, however limited to the order of 100 [...]

Clay Polyimide Composite Film with Low CTE and High Water Vapor Barrier Property

Ebina T., Kawasaki K., Nakamura T., Yoshida M., Hayashi H., Hayashizaka N., Yamashita T., Yamamoto T., Misyou D., Bando S., Hayashizaka N., Umeda Y., National Institute of Advanced Industrial Science and Technology, JP

A new clay polymer composite film was prepared by mixing specially processed non-swelling clay and polyimide at an optimal ratio. The newly developed film (80 µm thick) was heat-resistant at 450°C and showed very little [...]

Novel Catalysis of Dendrimer: Efficient Nanocavity of Polyamine Dendrimer for Intramolecular Michael Reaction

Maeno Z., Mitsudome T., Mizugaki T., Jitsukawa K., Kaneda K., Osaka University, JP

The intramolecular Michael reaction of (E)-9-nitro-3-nonen-2-one was investigated using poly(propylene imine) dendrimers with alkyl chain on the periphery (Gx-C16, x = 3-5, x denotes the number of the generation). Gx-C16 showed higher catalytic activity than [...]

Controlled Synthesis of Subnano Pd Cluster Catalysts by Fine Tuning of Dendrimers

Mizugaki T., Kibata T., Maeno Z., Mitsudome T., Jitsukawa K., Kaneda K., Osaka University, JP

We recently succeeded in the fine control of the Pd cluster sizes in wide range using the fifth generation poly(propylene imine) (PPI) dendrimers. Preorganization of Pd ions within the PPI dendrimer with butanediamine core(G5-C4) and [...]

Photocatalytic activity of mesoporous titanium dioxide nanoparticles under visible light irradiation

Ikuma Y., Kida S., Kuramoto R., Niwa K., Anandan S., Kanagawa Inst. of Tech., JP

Using surfactant and other chemicals, nano-template consisting of SiO2 was first prepared. Then the template was treated in titanium tetra-isopropoxide dissolved in 1-propanol to convert silicon into titanium. The product was heated in air or [...]

Stacked Self-standing Carbon Nanotube Forest Films utilizing Periodical Multi-layered (Fe/AlN)n Films

Furuta H., Koji H., Harigai T., Hatta A., Kochi University of Technology, JP

A novel Carbon Nanotube structure, stacked self-standing carbon nanotube forest films achieved by a newly developed periodically deposited multi-layered (Fe/AlN)n film, are presented. Fe and AlN films were deposited on the substrate periodically by magnetron [...]

Change of the Electronic Conductivity of CNTs and Graphene Sheets Caused by a Three-dimensional Strain Field

Ohnishi M., Suzuki K., Miura H., Tohoku University, JP

Since the electronic structure of deformed carbon nanotubes (CNTs) varies widely depending on their chirality and deformation mode, CNTs have the potential to be high-quality strain sensors. The authors revealed the possibility of the high [...]