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The word "Nanotechnology" in a less specific sense
has been used to describe many types of research where the
characteristic dimensions are less than about 1,000 nanometers.
For example, continued improvements in lithography (printing
process) have resulted in line widths that are less than one
micron: this work is often called "Nanotechnology."
Nagase has been expanding its knowledge in this area of work
with its available network and resources. One of the Nagase
Group companies, Cluster Technology Co., Ltd. developed ultra-fine
injection head for ultra fine Inkjets printers with its cutting
edge microfabrication technology.
In December 2000 Nagase started deploying this inkjet ejection
method in the development of " DNA microarray" manufacturing
systems in the medical field. We also strongly believe that
the inkjet device technology will be able to find useful applications
in the manufacturing of organic LEDs in the electronics industry.
DNA Microarray Spotter (High Performance DNA Microarray
Printing Technology)
Applying the inkjet ejection method, we developed an inkjet
DNA microarray spotter that dispenses minute spotting at one-tenth
the existing standard with a DNA-contained liquid instead
of ink. With this technology, the spotting amount has been
improved along with the uniformity and reproducibility of
the form. The technology has also enabled the mass production
of high precision DNA microarrays. By combining nono-scaled
hybrid compounds and microfabrication technology, we are exploring
to develop nano-biodevices, which are receiving considerable
attention in the post-genome era.
Creation of Full-color Organic LEDs - the Challenge of
Technology
The elemental inkjet printer technology can also be made
applicable to resolve patterning technology issues arises
in the manufacturing process of organic LEDs. One of the unresolved
problems hindering the commercialization of organic LEDs is
that no way was yet found for Pico-droplets to reach targeted
surface with positional precision. That requires the creation
of banks (partitions), which have to be first waterproofed.
Even if the resulting organic LEDs emit light, inconsistencies
in the luminance of individual dots may lead to uneven screen
display. Nagase is now in the midst of developing key devices
and systems for inkjets in an attempt to unblock these technological
barriers.
(Source: Nagase & Co. Ltd. Annual Report 2002)
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