Lowering the dielectric constant of polyimide thin films by swelling with supercritical carbon dioxidepolyimidesthin filmsdielectric constantswelling with supercritical carbon dioxideThe swelling with supercritical carbon dioxide (sc-CO2) of thin films of polyimides having various structures was investigated. ...
Define dielectric constant. dielectric constant synonyms, dielectric constant pronunciation, dielectric constant translation, English dictionary definition of dielectric constant. n. The ratio of the permittivity of a material to that of a perfect vacuum
Progress in synthesis of low dielectric constant polyimide in past decade reviewed.The methods included incorporation of nano-pore into polyimide matrix by physical or chemical means. Researches mainly focused on method of grafting nano-porous organic/inorganic materials into polyimide matrix to decrease ...
When At-PDMS was introduced into the polyimide chain, the polyimide copolymers exhibited lower dielectric constants and better moisture resistance and mechanical properties. The reductions in the dielectric constant of the PI-PDMS copolymers Could be attributed to the incorporation of polydimethylsiloxane ...
Dielectric constant and refractive index of poly (siloxane-imide) block copolymer 作者:Othman Muhammad Bisyrul Hafi; Ramli Mohamad Riduwan; Tyng Looi Yien; Ahmad Zulkifli*; Akil Hazizan Md 来源:Materials & Design, 2011, 32(6): 3173-3182. ...
successfully prepared via in situ polymerization.The hollow silica and nanocomposite films were characterized.The results indicated that the diameter of the hollow silica is around 30 nm and the dielectric constant of the nanocomposite films enhance with the increase of the concentration of the hollow ...
Microporous polyimide films for reduced dielectric applications With all the advances in the microelectronics industry, a limiting factor to computer chip speed and size is becoming the dielectric constant of the interl... RS Saunders,JH Aubert,WF Mcnamara 被引量: 0发表: 1995年 Microporous polyimide...
The polyimide films had low water absorption of 0.190.30% and low dielectric constant of 2.793.1 at 1 MHz. These polyimides showed very high thermal ... A Ghosh,S Banerjee - Journal of Macromolecular Science: Part A - Chemistry 被引量: 52发表: 2008年 Kinetics of solvolysis of the trans...
A flexible insulator of a hollow SiO2 sphere and polyimide hybrid for flexible OLEDs The fabrication of interlayer dielectrics (ILDs) in flexible organic light-emitting diodes (OLEDs) not only requires flexible materials w...
The following is the dielectric constant of some typical materials (at 1Mhz): Vacuum 1 Pure PTFE 2.1 GY PTFE 2.2-2.3 GX-PTFE 2.55 Cyanate ester / glass 3.2 Cyanate ester / quartz 2.8-3.4 Polyimide quartz 3.5-3.8 Polyimide glass 4.0-4.6 Epoxy resin - glass (FR4) 4.4-5.2 Non-woven ...