Material characterization of a high‐dielectric‐constant polymer–ceramic composite for embedded capacitor for RF applications

Rao, Yang; Wong, Ching‐Ping

doi:10.1002/app.13690

Cited by 203 publications

(119 citation statements)

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“…2. The T g values for poly(2-hydroxyethyl methacrylate) and poly(2-hydroxypropyl methacrylate), poly(phthalimido-2-hydroxypropyl methacrylate) [poly(-PHPMA)] [24] bearing hydroxyl side group have been recorded as 100, 95 and 135°C in the literature, respectively. The T g of poly(NOPMA) prepared in this study is 110°C.…”

Section: Resultsmentioning

confidence: 99%

Synthesis, thermal degradation and dielectric properties of poly[2-hydroxy,3-(1-naphthyloxy)propyl methacrylate]

et al. 2016

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2-Hydroxy-3-(1-naphthyloxy)propyl methacrylate (NOPMA) monomer was synthesized from reaction of 2-[(2-naphthyloxy)methyl]oxirane with methacrylic acid in the presence of pyridine. The polymerization of NOPMA was carried out by free radical polymerization method in the presence of AIBN at 60°C. The structure of monomer and polymer was characterized by 1 H-NMR, 13 C-NMR and FT-IR spectroscopy techniques. The glass transition temperature and averagemolecular weights of poly(NOPMA) were measured using differential scanning calorimetry and gel permeation chromatography, respectively. The thermal degradation behavior of poly(NOPMA) has been investigated by FT-IR studies of the partially degraded polymer and thermogravimetry. The cold ring fractions (CRFs) were collected at two different temperatures, initially fraction-1 (CRF 1 ) is from room temperature to 320°C, and the other fraction-2 (CRF 2 ) is from 320 to 500°C. The volatile products of the degradation were trapped at -195°C (in liquid nitrogen). All the fractions were characterized by FT-IR, 1 H and 13 C-NMR spectroscopic techniques, and the cold ring fractions (CRFs) were also characterized by GC-MS. For the degradation of polymer, the major compound between products of CRFs is a-naphthol. The GC-MS, FT-IR and NMR data showed that depolymerization corresponding to monomer was not prominent below 320°C in the thermal degradation of poly(NOPMA). The mode of thermal degradation containing formation of the major products was identified. The dielectric permittivity (e 0 ), the loss factor (e 00 ) and conductivity (r ac ) were measured using a dielectric analyzer in the frequency range of 50 Hz to 20 kHz.

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Section: Resultsmentioning

confidence: 99%

Synthesis, thermal degradation and dielectric properties of poly[2-hydroxy,3-(1-naphthyloxy)propyl methacrylate]

et al. 2016

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“…3) However, the excellent processability of the organic matrix, such as high adhesion strength and sound thermal stress reliability, are inevitably sacrificed with increasing content of loaded ceramic filler.…”

Section: )-8)mentioning

confidence: 99%

Enhanced dielectric constant of polymer-matrix composites using nano-BaTiO3 agglomerates

Lee

Kim

et al. 2010

J. Ceram. Soc. Japan

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The epoxy/matrix composites incorporating with dispersed and agglomerated nano-BaTiO3 fillers were investigated. The relative dielectric constants of the composites with the agglomerated particles were significantly improved, compared to those of the composites with the well-dispersed particles. In addition, the experimental data were in better agreement with the values calculated by the Lichteneker's model than with those of the conventional Maxwell-Garnett's model which has been widely employed for the calculation of the dielectric constant of polymer/filler composites. In order to promote an agglomeration by interlocking between the nanoparticles, the BaTiO3 powders were heat-treated at various temperatures. An epoxy composite with 40 vol% BaTiO3 heat-treated at 800°C for 1 h exhibited an excellent relative dielectric constant of 67, along with high polarizability, low dielectric loss, and low leakage current. Similarly, the epoxy composites with agglomerated SrTiO3 fillers provided a higher dielectric constant than that of their dispersed counterparts. The origin of the increase in the relative dielectric constant achieved by the agglomeration effect is also suggested.

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“…Capacitor, as an important energy storage device, is the most common electronic devices fabricated by dielectrics with high-k, high breakdown strength, high-energy density, but low loss tangent [7,8]. Among these parameters, relative permittivity and loss tangent are the most significant ones which can be easily obtained by researchers and/or manufacturing workers to evaluate the final properties when used in electronic and electrical applications [9][10][11]. Traditional dielectric materials include oxides (ZnO, Al 2 O 3 , etc.)…”

Section: Introductionmentioning

confidence: 99%

Polyarylene Ether Nitrile-Based High-k Composites for Dielectric Applications

Zhan

Wang

et al. 2018

International Journal of Polymer Science

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Flexible polymer-based composites exhibiting high dielectric constant as well as low dielectric loss have been intensively investigated for their potential utilization in electronics and electricity industry and energy storage. Resulting from the polar -CN on the side chain, polyarylene ether nitrile (PEN) shows relatively high dielectric constant which has been extensively investigated as one of the hot spots as dielectric materials. However, the dielectric constant of PEN is still much lower than the ceramic dielectrics such as BaTiO 3 , TiO 2 , and Al 2 O 3 . In this review, recent and in-progress advancements in the designing and preparing strategies to obtain high-k PEN-based nanocomposites are summarized. According to the types of the added fillers, the effects of organic fillers, dielectric ceramic fillers, and conductive fillers on electric properties of PEN-based composites are investigated. In addition, other factors including the structures and sizes of the additive, the compatibility between the additive agent and the PEN, and the interface which affects the dielectric properties of the obtained composite materials are investigated. Finally, challenges facing in the design of more effective strategies for the high-k PEN-based dielectric materials are discussed.

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Material characterization of a high‐dielectric‐constant polymer–ceramic composite for embedded capacitor for RF applications

Cited by 203 publications

References 4 publications

Synthesis, thermal degradation and dielectric properties of poly[2-hydroxy,3-(1-naphthyloxy)propyl methacrylate]

Synthesis, thermal degradation and dielectric properties of poly[2-hydroxy,3-(1-naphthyloxy)propyl methacrylate]

Enhanced dielectric constant of polymer-matrix composites using nano-BaTiO3 agglomerates

Polyarylene Ether Nitrile-Based High-k Composites for Dielectric Applications

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