PTFE nanoemulsions as ultralow-k dielectric materials

Machetta, Paola; Lazzarino, Marco; Carrato, Sergio; Schmidt, C. J.; Canil, G.; Kapeliouchko, Valerj; Poggio, Tiziana; Sanguineti, A.

doi:10.1016/s1369-8001(02)00106-3

Cited by 11 publications

(4 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Materials with a low D k and especially a low D f (usually less than 0.005) at high-frequencies, such as polytetrafluoroethylene (PTFE, D k : 2.1; D f : 0.0004), [5][6][7] liquid crystal polymers (LCP, D k : 2.9-3.2; D f : 0.002-0.0047), [8][9][10][11] and polynorbornene (D k : 2.39; D f : 0.0037), 12,13 have been extensively studied and used in industry. However, there are still lots of problems with these materials: PTFE has the disadvantages of poor dimensional stability, poor adhesion, and difficult processing; LCP has the problems of film-forming technique, low product yield, and poor temperature resistance; and the coefficient of thermal expansion (CTE) of polynorbornene is too high.…”

Section: Introductionmentioning

confidence: 99%

A systematic study of the relationship between the high-frequency dielectric dissipation factor and water adsorption of polyimide films

Bei¹,

Chen²,

He³

et al. 2023

J. Mater. Chem. C

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

A systematic study of the relationship between the high-frequency dielectric dissipation factor and water adsorption of polyimide films

Bei¹,

Chen²,

He³

et al. 2023

J. Mater. Chem. C

View full text Add to dashboard Cite

show abstract

“…[3][4][5][6][7] Polytetrafluoroethylene (PTFE) with its many characteristics, such as low surface adhesion, low surface energy, high gas permeability, low toxicity, climate hardiness, and excellent chemical stability, has been widely studied in various fields such as anti-fouling coating for window or display, hydrophobic textile, etc. [8][9][10][11][12] Therefore, it is an ideal material to prepare super-hydrophobic surfaces that exhibit many potential applications. Various technologies have been developed to prepare PTFE super-hydrophobic surfaces, including chemical vapor deposition, vacuum evaporation method, plasma, ion beam treatment, radio-frequency sputtering, sacrificial colloids and pulsed laser deposition.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of super-hydrophobic surfaces on aluminum alloy substrates by RF-sputtered polytetrafluoroethylene coatings

et al. 2014

View full text Add to dashboard Cite

In this work, we present a method of fabricating super-hydrophobic surface on aluminum alloy substrate. The etching of aluminum surfaces has been performed using Beck's dislocation etchant for different time to create micrometer-sized irregular steps. An optimised etching time of 50 s is found to be essential before polytetrafluoroethylene (PTFE) coating, to obtain a highest water contact angle of 165±2° with a lowest contact angle hysteresis as low as 5±2°. The presence of patterned microstructure as revealed by scanning electron microscopy (SEM) together with the low surface energy ultrathin RF-sputtered PTFE films renders the aluminum alloy surfaces highly super-hydrophobic.

show abstract

“…Recent research articles have reported that the thermal properties and signal noise cannot be significantly improved. We therefore studied a different formula and fabrication method to find if Al [6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

A Study on the Fabrication Parameters and Dielectric Properties of PTFE Composites Filled with Al₂O₃ and SiO₂ Nanoparticles

Tsai

Kuo

2010

Journal of Industrial Textiles

View full text Add to dashboard Cite

In order to fabricate and enhance the composites with dielectric functions, printed circuit boards (PCBs) were made from polytetrafluoroethylene (PTFE) gel after curing with 350°C. SiO2 and Al2O 3 nanopowders were used as the fillers and PTFE was the matrix used to fabricate the composites. A proposed stirring machine was used to conduct the compounding process, which can assist in the uniform distribution of nano-Al2O3 and nano-SiO2 powders in PTFE. The PTFE gel was mixed in the proposed stirring machine. Following stirring, molding and calendaring were done to release air bubbles and to increase the surface uniformity and smoothness of PCBs. Finally, PCBs were fabricated after cooling and sintering processes. Several kinds of PCBs were made by varying a wide range of fabrication parameters which included: percentage of particles added, size of particles added, different fabrication procedures, rotational speeds of the stirring machine, sintering, and cooling temperature, and calendaring times. Influences of these parameters and fabrication conditions on the dielectric properties of PCBs were investigated. This study established that there are some fabrication parameters due to which we get the worst dielectric properties of PCBs. Therefore, the optimum fabrication conditions and affecting factors of the board were investigated. As a result of this research, it was concluded that both dielectric constant and loss factor of the board were decreased by the addition of SiO2 and Al 2O3 nanoparticles and the optimum rotational speed of stirring machine is 3000 rpm. Dielectric properties of PCBs were increased at speeds above 3000 rpm.

show abstract

PTFE nanoemulsions as ultralow-k dielectric materials

Cited by 11 publications

References 7 publications

A systematic study of the relationship between the high-frequency dielectric dissipation factor and water adsorption of polyimide films

A systematic study of the relationship between the high-frequency dielectric dissipation factor and water adsorption of polyimide films

Fabrication of super-hydrophobic surfaces on aluminum alloy substrates by RF-sputtered polytetrafluoroethylene coatings

A Study on the Fabrication Parameters and Dielectric Properties of PTFE Composites Filled with Al₂O₃ and SiO₂ Nanoparticles

Contact Info

Product

Resources

About

PTFE nanoemulsions as ultralow-k dielectric materials

Cited by 11 publications

References 7 publications

A systematic study of the relationship between the high-frequency dielectric dissipation factor and water adsorption of polyimide films

A systematic study of the relationship between the high-frequency dielectric dissipation factor and water adsorption of polyimide films

Fabrication of super-hydrophobic surfaces on aluminum alloy substrates by RF-sputtered polytetrafluoroethylene coatings

A Study on the Fabrication Parameters and Dielectric Properties of PTFE Composites Filled with Al2O3 and SiO2 Nanoparticles

Contact Info

Product

Resources

About

A Study on the Fabrication Parameters and Dielectric Properties of PTFE Composites Filled with Al₂O₃ and SiO₂ Nanoparticles