Surface treatment for Cu metallization on polyimide film by atmospheric pressure dielectric barrier discharge plasma system

Cho, Sang-Jin; Shrestha, Shankar Prasad; Boo, Jin‐Hyo

doi:10.1016/j.cap.2011.04.024

Cited by 15 publications

(11 citation statements)

References 11 publications

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“…Among various plasma effects—such as etching, heat damage, and metallization or polymerization of single materials on the biomaterial surfaces—measurements of the etching effect in terms of surface roughness had the greatest priority, as heat damage from APPJ was excluded in the device developmental stage and another material was not used in this study [ 20 , 22 , 23 ]. Figure 2 (e) shows that a surface roughness change (Ra) after APPJ treatment was not statistically observed (air: 1.94 ± 0.28 μ m, air APPJ: 1.74 ± 0.66 μ m).…”

Section: Resultsmentioning

confidence: 99%

Effects of a Nonthermal Atmospheric Pressure Plasma Jet on Human Gingival Fibroblasts for Biomedical Application

Lee

Kim

2016

BioMed Research International

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Nonthermal atmospheric pressure plasma jets (APPJ) have been developed and applied in biomedical research as a cancer treatment or bacterial sterilization. However, the drawback of APPJ on normal oral cells during plasma treatment and underlying cell death mechanisms have not been studied and clearly explained, although there is known to be an influence from reactive oxygen species (ROS). Hence, this study investigates whether and how a nonthermal atmospheric pressure air plasma jet kills human normal gingival cells using immortalized human gingival fibroblasts (hTERT-hNOF cells). In this study, a set of physicochemical or biological methods were used to illuminate the killing mechanisms. It was found that ROS were induced intracellularly without a breakdown of the cell wall and apoptosis was involved in cell death when an air APPJ treatment was performed on the cells directly without media; the air treatment only supported a detachment of the cells without increase of ROS. It was also revealed that a correlation between intracellular ROS concentration and cells viability existed. These results indicated that the direct air APPJ treatment possibly raises safety issue to normal tissue and thereby APPJ application in biomedical field needs more in vitro and in vivo study to optimize it.

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Section: Resultsmentioning

confidence: 99%

Effects of a Nonthermal Atmospheric Pressure Plasma Jet on Human Gingival Fibroblasts for Biomedical Application

Lee

Kim

2016

BioMed Research International

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“…5b shows the high resolution infrared spectra within the range 3000-4000 cm −1 . Infrared spectra at 3650 and 3480 are hydroxyl O−H groups, and secondary aromatic amine stretching vibration, respectively [25,28]. These intensities of stretching peak of polyimide treated by plasmas with a helium (P5) and helium-oxygen mixture (P6) were slightly increased compared to the polyimide without plasma treatment.…”

Section: Resultsmentioning

confidence: 99%

“…It was shown that the presence of O species led to the increase of OH on the polyimide surface treated by plasma. Band at the range of 3000-3100 cm −1 corresponds to C−H stretching mode [25]. Hence, the carbon structure of polyimide surface was influenced by plasma treatment as the intensity peak of the treated polyimide increased due to the helium and heliumoxygen mixture plasma treatments.…”

Section: Resultsmentioning

confidence: 99%

Surface treatment of polyimide using atmospheric pressure dielectric barrier discharge plasma

Riyanto¹

2020

ScienceAsia

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In this study, polyimide was treated by atmospheric pressure dielectric barrier discharge plasma using a helium and/or helium-oxygen mixture gasses. The polyimide was placed between copper electrodes with dielectric material installed on the cathode electrode. To investigate the surface treatment, the plasmas as a function of power, treatment time, and plasma gasses were introduced on the polyimide substrate. The experimental results show that the polyimide treated by dielectric barrier discharge plasma increases the wetting property. This property can be attributed to the surface roughness and the water compatible functional groups. The roughness increases by helium plasma treatment and can be further improved by increasing plasma power or the presence of oxygen in the helium-oxygen mixture plasma. On the other hand, the plasma surface treatment led to formation of oxygen related functional groups of −C− −O and −OH.

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“…1,2 Accordingly, they find high value in applications such as microelectronics and space technology. 3,4 Here, surface-mediated properties, both positive and negative, are important, for example, metal/polymer adhesion 5,6 versus ultraviolet (UV) photodegradation in space.…”

Section: Introductionmentioning

confidence: 99%

Effect of 172-nm UV irradiation on polyimide and its application in surface modification by grafting

Das

Poutsma

Kelley

2020

High Performance Polymers

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Polyimides (PIs) have a wide range of industrial and scientific applications due to their excellent thermal and mechanical stability and chemical resistance. Their response to ultraviolet (UV) irradiation is of further interest in high-value applications such as spacecraft technology and electronics packaging. In this work, we investigated the effect of 172-nm UV xenon excimer lamp irradiation on samples of pyromellitimido-oxydianiline (PMDA-ODA) commercial films in the absence of oxygen. The average irradiance received at the sample position was 90 mW/cm2, and the total radiation dosage varied from 0 to 64 J/cm2. X-Ray photoelectron spectroscopy, time-of-flight-secondary ion mass spectrometry, atomic force microscopy, and contact angle measurements were used to characterize the effect. Calculated UV-visible spectroscopy absorption spectra were obtained using the ZINDO//B3LYP/3-21G method to give an indication of which orbitals are involved in the transitions near 172 nm. The reactivity of the different UV-treated PI samples toward nitrogen-borne heptafluorodecene vapor was then investigated using the above techniques. Grafting reactions occurred on the surface of the photochemically activated polymer. This study explored the potential for modification of PI surfaces using UV-light-assisted grafting to impart valuable functionalities.

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Surface treatment for Cu metallization on polyimide film by atmospheric pressure dielectric barrier discharge plasma system

Cited by 15 publications

References 11 publications

Effects of a Nonthermal Atmospheric Pressure Plasma Jet on Human Gingival Fibroblasts for Biomedical Application

Effects of a Nonthermal Atmospheric Pressure Plasma Jet on Human Gingival Fibroblasts for Biomedical Application

Surface treatment of polyimide using atmospheric pressure dielectric barrier discharge plasma

Effect of 172-nm UV irradiation on polyimide and its application in surface modification by grafting

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