A Shield Strip Type Low Impedance Line Component Using a Conducting Polymer for a Wide Frequency Band De-Coupler Set(Special Issue on Recent Progress in Organic Molecular Electronics)

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概要

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• Digitalization in electronic systems requires the electronics devices in de-coupler sets with low impedance at high frequency, and high reliability. A shield strip type line component with aluminum substrate, its surface oxidized dielectric layer and a conducting polymer electrolyte has been developed. The conducting polymers of polypyrrole and poly(3,4-ethylenedioxythiophene) have been formed by direct chemical oxidative polymerization and electrochemical polymerization on a dielectric layer. Thus, the surface of the dielectric layer is covered with conducting polymer films. The structure of the line component is strip line conformation just like a crushed coaxial cable with in-put and out-put terminals surrounded by the conducting polymer electrolyte. Two types of the components, i.e., a large surface area, 10 × 20 mm, and a small surface area, 4 × 4 mm, have been fabricated with polypyrrole and poly(3,4-ethylenedioxythiophene), respectively. The dielectric properties of these line components have been investigated with a Impedance/Cain-phase analyzer and a network analyzer. Due to the high conductivity of the polymer electrolytes, the line components demonstrate low impedance at resonance frequency. Regarding the frequency characteristics of the line components, the impedance and ESR at high frequency are lower than those of the conventional capacitors. Furthermore, the transfer coefficients, S_21, are three orders lower than those of other capacitors in a wide frequency band from 10 kHz to 6 GHz. The results indicate the excellent characteristics of the line components for the power line de-coupler set at the boundary of the closed circuit unit.

• 社団法人電子情報通信学会の論文
• 2002-06-01

著者

• Satoh M

  Nec Corp. Kawasaki‐shi Jpn

• Satoh Masaharu

  Functional Materials Research Laboratories Nec Corporation

• Tohya H

  Nec Corp. Kawasaki‐shi Jpn

• Tohya Hirokazu

  Emc Engineering Center Production Technology Laboratories Nec Laboratories

• Masuda Koichiro

  Emc Engineering Center Production Technology Laboratories Nec Corporation

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• New Technologies Doing Much for Solving the EMC Problem in the High Performance Digital PCBs and Equipment (Special Section on Selected Papers from the 11th Workshop on Circuits and Systems in Karuizawa)
• A Shield Strip Type Low Impedance Line Component Using a Conducting Polymer for a Wide Frequency Band De-Coupler Set(Special Issue on Recent Progress in Organic Molecular Electronics)
• Interconnect Design Methodology Fitting to the High Speed Switching and Higher Levels of Integration

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