Polyimides for Microelectronics and Tribology Applications

Fahim, Mohammad; Bijwe, Jayashree; Nalwa, Hari Singh

doi:10.1016/b978-012513904-5/50010-7

Cited by 7 publications

(5 citation statements)

References 138 publications

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“…The one-pot synthesis of PAAS in an aqueous medium was demonstrated using DMAPMAA, an acrylamide containing vinyl and tertiary amine functional groups. The resulting water-soluble PI precursor was characterized by 1 H NMR spectroscopy and sizeexclusion chromatography. Clear photo-patterning under a UV environment was promoted by formulating PAAS-DMAPMAA by applying Irgacure 2959 and DTT as a photo-initiator and watersoluble dithiol cross-linker, respectively.…”

Section: Discussionmentioning

confidence: 99%

“…Aromatic polyimides (PIs) have been utilized in microelectronic applications as substrates, packaging, and dielectric materials. [1][2][3][4][5][6][7] Their rigid aromatic structure provides excellent mechanical strength, thermal properties, and chemical resistance, allowing a high breakdown voltage and long-term stability. [8][9][10][11] As microelectronic devices have become more sophisticated and integrated, the demand for developing dielectric materials with novel physical and chemical properties and direct patternability has increased.…”

Section: Introductionmentioning

confidence: 99%

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A water-borne photo-sensitive polyimide precursor for an eco-friendly process of preparing organic thin film transistors

Lee

Kim

et al. 2023

J. Mater. Chem. C

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A water-borne photo-sensitive polyimide precursor for an eco-friendly process of preparing organic thin film transistors

Lee

Kim

et al. 2023

J. Mater. Chem. C

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“…permittivity, is used for dielectric characterization of any material. It depends upon the number of dipoles in the material, its strength, temperature and frequency [ 16 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of carbons’ structure and type on AC electrical properties of polymer composites: predicting the percolation threshold of permittivity through different models

Rahaman

Gupta²,

Hossain

et al. 2023

Colloid Polym Sci

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The AC electrical properties of EVA- and NBR-based composites filled with different conductive fillers were investigated. Result shows several magnitudes of increment in AC electrical conductivity and dielectric permittivity after the addition of these conductive fillers, indicating that these materials can be used as supercapacitors. The magnitude of increment was varied according to polymer and filler types. Herein, we also have tested the applicability of different sigmoidal models to find out the percolation threshold value of permittivity for these binary polymer composite systems. It is observed that except sigmoidal–Boltzmann and sigmoidal–dose–response models, other sigmoidal models exhibit different values of percolation threshold when considered for any particular polymer composite system. The paper discusses the variation in results of percolation threshold with an emphasis on the advantages, disadvantages and limitations of these models. We also have applied the classical percolation theory to predict the percolation threshold of permittivity and compared with all the reported sigmoidal models. To judge the unanimous acceptability of these models, they tested vis-à-vis the permittivity results of various polymer composites reported in published literature. To comprehend, all the models except the sigmoidal–logistic-1 model were successfully applicable for predicting the percolation threshold of permittivity for polymer composites. Supplementary Information The online version contains supplementary material available at 10.1007/s00396-023-05120-2.

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“…The microscopic structure of such a polyimide studied in this work is shown in Figure 1. This polyimide possesses outstanding properties like the general polyimides, such as high thermal stability, excellent mechanical properties, and high chemical resistance [1][2][3]. Besides, the steroidal structure in this polyimide makes it possess unique properties.…”

Section: Introductionmentioning

confidence: 99%

Detection of Surface Modification of Polyimide Containing Steroidal Structure as a Function of Storage Time Using Second-Order Nonlinear Optical Spectroscopy

Nguyen,

Du,

Khuat

et al. 2023

e-J. Surf. Sci. Nanotechnol.

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The modification of a polyimide surface containing a 30% fraction of steroidal structure was studied as a function of storage time by vibrational sum frequency generation (SFG) spectroscopy and optical second-harmonic generation (SHG). The variation of the symmetric and anti-symmetric stretching modes of the CH 3 isopropyl group at the end of the side chain of the rubbed polyimide was detected in the SFG spectra after a 3-month storage time in a practical environment. It suggests that the isopropyl group might be reoriented. On the other hand, the SHG response of the same sample showed an insignificant storage-time dependence. As a result, the phenyl rings of the polyimide are judged to be unmodified after long-term storage time. The change is suggested to occur for two main reasons. One is the interaction between the polyimide polymers and the ambient water molecules. The other is the adsorption of unknown organic molecules on the polyimide surface.

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Polyimides for Microelectronics and Tribology Applications

Cited by 7 publications

References 138 publications

A water-borne photo-sensitive polyimide precursor for an eco-friendly process of preparing organic thin film transistors

A water-borne photo-sensitive polyimide precursor for an eco-friendly process of preparing organic thin film transistors

Effect of carbons’ structure and type on AC electrical properties of polymer composites: predicting the percolation threshold of permittivity through different models

Detection of Surface Modification of Polyimide Containing Steroidal Structure as a Function of Storage Time Using Second-Order Nonlinear Optical Spectroscopy

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