(C)2008 DOWA Holdings Co., Ltd.

• DOWA Group CSR
  • DOWA CSR
  • Greeting
  • What is Social Responsibility of DOWA?
  • Feature I Contribution to Earth’s environment
  • Aiming for No. 1 in Asia
  • Measures to Fight against Global Warming from Wastes
  • Feature II Fostering Rich Forests and Living Creatures
  • Fostering Rich Forests
  • Purify Water and Fostering Living Creatures.
  • Our Efforts towards Conservation of Biodiversity in Mine Development
  • What’s DOWA?
  • We Support the Infrastructures of the Resource Recycling Society.
  • DOWA Metals & Mining
  • DOWA Eco-System
  • DOWA Electronics Materials
  • DOWA Metaltech
  • DOWA Thermotech
  • As an Public Institution
  • CSR Guideline
  • Basic Environmental Policy
  • Management System
  • Environmental & Social Goals and their Present Statuses
• Social Performance
  • Relationship with Society
  • Relationship with Customers
  • Relationship with Employees
• Environmental Performance
  • Environmentally Conscious Business Management
  • Entire Overview of Business Activities and Environmental Load
  • INPUT
  • OUTPUT
  • Contribution to Global Warming Measures through Destruction of Chlorofluorocarbon
• Economic and Business Management Performance
  • Economic Report
  • Environmental Accounting
  • External Economic Benefit Evaluation EEBE(R)
• Business Overview
  • Corporate History and Environmental Commitment
  • Basic Requirements and Target Organization
  • Questionnaire Resulte

Electronics Materials Department: DOWA Electronics Materials Co., Ltd./Creating New Businesses, Aimed at Being a Global Top-Niche Company

Business Description

DOWA Electronics Materials responds to the market needs by supplying semiconductor materials, materials for electronics and magnetic materials. We aim at being the top company in a wide variety of fields, building on our product families that are backed up by our cutting-edge technologies. We also strive to develop new businesses through active investment.

Business Topics

Development of High Power Deep Ultraviolet LED with the World State of Art Output

Note: As ultraviolet LED is not visible to human
eyes, the light is transfromed to blue with
fluorescence substance in this picture.

DOWA Electronics Materials succeeded in developing a “Deep Ultraviolet LED” utilizing shorter wavelengths (325 to 350 nm) than those now on the market. This LED is expected to be applied to a variety of applications: hardening of resins, photo catalyst, stereo lithography, water purification and sterilization, and it has attracted much interest from companies all over the world. This will enable a smaller light source of deep ultraviolet rays compared to an existing ultraviolet laser or a gas lamp.

This LED has a longer life and less power consumption, contributing to resource and energy savings. We are now testing this deep ultraviolet LED for mass production and will further promote developing a LED chip with shorter wavelength.

Electronic Circuit Innovation
- Commercialization of Low Temperature Fired Conductive Ink Using Silver Nanopowder -

DOWA Electronics Materials obtained an exclusive right to sell the conductive ink using silver nanopowder developed by PChem Associates, Inc. in U. S. A. and promoting commercialization of this ink.

Using this low temperature fired ink base on silver nanopowder, we can manufacture a circuit with high conductivity and adhesion only heating the powder for several tens of seconds or a minute under the low temperature of 120℃ - 150℃. In addition, high speed printing will allow for cost reduction and printing circuits on paper or PET resin, which used to be difficult. This new LED can also be used as a RFID tag or an electronic ticket. As it can be used for printing on a large area, application for a solar panel of large area may be feasible.

In the future we will endeavor to further develop products that meet the needs of our customers, utilizing our nanoparticle technology and infrastructure.

DOWA Electronics Materials Okayama reduced CO2 emission by converting from using heavy oil to natural gas in 2008. We would like to contribute to reducing global warming, by focusing on development of nitride semiconductor materials for eco-electrical appliances, metal powder for solar cells (for electrodes) in addition to development of deep ultraviolet LEDs and metal nanoparicles used for energy saving parts and materials.

President Akira Otsuka

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