Product category:
Electronics Manufacturing Materials and Consumables
News Release from: Nitto Denko Corp | Subject: Photosensitive epoxy material
Edited by the Electronicstalk Editorial
Team on 24 May 2005
Photosensitive epoxy creates optical
waveguides
A novel photosensitive epoxy material can be used for optical waveguides.
Nitto Denko Corp has developed a novel photosensitive epoxy material which can be used for optical waveguides This new material is highly transparent in the near-infra-red range, and flexible, so that optical circuits can be created by patterning using ultraviolet exposure, replacing conventional dry-etching processes
This article was originally published on Electronicstalk on 25 Apr 2002 at 8.00am (UK)
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Thus, the new material will be applicable in optical circuit boards.
Embedded optical waveguides can be created using the photosensitive epoxy material.
The light-transmitting part (core) pattern surface is flat with a rectangular cross-section.
The wrapping around the core (clad) can also be embedded, allowing construction of a 100um film on the substrate.
The optical characteristics of the material are excellent, leading to low 0.1dB/cm losses over the 0.7-1.0um.
Excellent flexibility enables the material to be used in film circuits.
In addition, manufacturing is made easier with the new material.
Optical waveguide patterns can be created using a simple, ultraviolet exposure and developing process.
Thus the conventional dry-etching process is no longer required.
The material will also yield benefits in the field optical interconnection, between substrates and chips, as a material for optical waveguides between parts inside electronic equipment of several millimetres to tens of centimetres.
Nitto Denko has developed this new photoconductive material, cultivating its transparent polymer design and photosensitive process technologies experience of many years, in response to the growing demand for a low-cost, highly reliable optical waveguide material to transmit optical signals efficiently.
Demand is growing along with completion of high-speed, high-capacity communications infrastructure as we enter the broadband era, and in anticipation that optical communications will soon be used even at the consumer level and within electronic equipment instead of just for major communications trunk lines.
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