ASSESSMENT OF ELECTRICALLY ACTIVE DEFECT PARAMETERS IN POLYARYLENPHTHALIDES

2021 ◽  
Vol 0 (1) ◽  
pp. 75-80
Author(s):  
A.V. MOSHELEV ◽  
◽  
A.F. PONOMAREV ◽  
S.N. SALAZKIN ◽  
V.V. SHAPOSHNIKOVA ◽  
...  
Keyword(s):  
Thin Films ◽  
Thermally Stimulated Current ◽  
Chemical Structures ◽  
Active Defect ◽  
Trapping State

Trapping state parameters in thin films of polyarylenephthalide polymers with different chemical structures were studied using the thermally stimulated current (TSC) method. As the objects of our research we used polyarylenephthalide polymers - polydiphenylphthalide (PDP) [1] and phthalide-based statistical co-polyarylene ether ketones (co-PAEK) [2]. It was revealed in the paper that the energy of trapping state activation essentially depends on the concentration of phhalide-containing fragments.

Low Dielectric Constant Materials for IC Intermetal Dielectric Applications: A Status Report on the Leading Candidates

1996 ◽  
Vol 443 ◽  
Author(s):  
Neil H. Hendricks
Keyword(s):  
Thin Films ◽  
Dielectric Constant ◽  
Process Integration ◽  
Electrical Performance ◽  
Low Dielectric Constant ◽  
Status Report ◽  
Structure Property ◽  
Chemical Structures ◽  
Low Dielectric ◽  
Low Dielectric Constant Materials

AbstractFor over two years, intensive efforts at SEMATECH and elsewhere have focused on identifying low dielectric constant (low ε) materials which possess all of the required properties and processing characteristics needed for integration into standard IC fabrication lines. To date, no material candidate has been shown to satisfy this impressive list of requirements. For some candidates, drawbacks related to material properties such as poor thermal stability or electrical performance have been identified; in other cases, problems in process integration, for example difficulties in patterning have stalled progress.In this paper, most of the current leading candidates for the low ε IC IMC application are identified and discussed. An attempt is made to correlate structure/property relationships in these materials with their relative attributes and deficiencies as they relate to the IMD application. Key differences in chemistry and property/processing characteristics are contrasted for low c silicon-oxygen polymers and for purely organic polymers. Novel dielectrics such as porous organic and inorganic thin films are also discussed in terms of their properties and associated process integration challenges. Since the needs for global planarization and low c IMD are occurring within roughly the same generation of minimum feature size (˜ 0.25 μm), the chemical mechanical polishing (CMP) of low dielectric constant thin films and/or of SiO2 layers deposited above them is briefly discussed. Both subtractive metalization and damascene processes are included, and the required low dielectric constant film properties and processing characteristics are contrasted for each process. Finally, the author's views on future trends in low dielectric constant materials development are presented, with an emphasis on identifying the types of chemical structures which may prove viable for this most demanding of all polymer film applications.

scholarly journals Influence of Degradation on Thermally Stimulated Current Measurements of Ph-rich Lead Zirconate Titanate Thin Films

2007 ◽  
Vol 32 (1) ◽  
pp. 91-94
Author(s):  
Takashi Nishida ◽  
Masahiro Echizen ◽  
Takashi Takeda ◽  
Kiyoshi Uchiyama ◽  
Tadashi Shiosaki
Keyword(s):  
Thin Films ◽  
Lead Zirconate Titanate ◽  
Lead Zirconate ◽  
Thermally Stimulated Current ◽  
Zirconate Titanate

scholarly journals Successful Release of Voriconazole and Flavonoids from MAPLE Deposited Bioactive Surfaces

2019 ◽  
Vol 9 (4) ◽  
pp. 786
Author(s):  
Irina Negut ◽  
Anita Visan ◽  
Camelia Popescu ◽  
Rodica Cristescu ◽  
Anton Ficai ◽  
...  
Keyword(s):  
Thin Films ◽  
Antifungal Activity ◽  
Active Form ◽  
Culture Collection ◽  
American Type Culture Collection ◽  
Laser Source ◽  
Laser Evaporation ◽  
Bioactive Substances ◽  
Chemical Structures

We explored the potential of biomimetic thin films fabricated by means of matrix-assisted pulsed laser evaporation (MAPLE) for releasing combinations of active substances represented by flavonoids (quercetin dihydrate and resveratrol) and antifungal compounds (amphotericin B and voriconazole) embedded in a polyvinylpyrrolidone biopolymer; the antifungal activity of the film components was evaluated using in vitro microbiological assays. Thin films were deposited using a pulsed KrF* excimer laser source which were structurally characterized using atomic force microscopy (AFM) and Fourier transform infrared spectroscopy (FTIR). High-quality thin films with chemical structures similar to dropcast ones were created using an optimum laser fluence of ~80 mJ/cm2. Bioactive substances were included within the polymer thin films using the MAPLE technique. The results of the in vitro microbiology assay, which utilized a modified disk diffusion approach and were performed using two fungal strains (Candida albicans American Type Culture Collection (ATCC) 90028 and Candida parapsilosis American Type Culture Collection (ATCC) 22019), revealed that voriconazole was released in an active form from the polyvinylpyrrolidone matrix. The results of this study show that the MAPLE-deposited bioactive thin films have a promising potential for use in designing combination devices, such as drug delivery devices, and medical device surfaces with antifungal activity.

Thermally stimulated current studies on CdS polycrystalline thin films

1996 ◽  
Author(s):  
O. Vigil ◽  
D. Stolik ◽  
R. Lozada-Morales ◽  
O. Zelaya-Angel ◽  
J. G. Mendoza-Alvarez
Keyword(s):  
Thin Films ◽  
Thermally Stimulated Current ◽  
Polycrystalline Thin Films
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