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Computer analysis of inhomogeneous on the surface of low-temperature ceramics on signal parameters in microwave multilayer integrated schemes

DOI 10.18127/j19998465-201812-02

Keywords:

S.B. Suntsov – Ph.D.(Eng.), Head of Department, JSC Academician M.F. Reshetnev «ISS» (Zheleznogorsk)
E-mail: sbsun@iss-reshetnev.ru
I.D. Zyrin – Ph.D.(Eng.), Design Engineer of the 2nd category, JSC Academician M.F. Reshetnev «ISS» (Zheleznogorsk)
E-mail: zyrinid@ iss-reshetnev.ru
V.M. Karaban – Ph.D.(Phys.-Math.), Head of Department of Radio Equipment Engineering and Manufacturing,
Tomsk State University of Control Systems and Radioelectronics
E-mail: karaban_vm@mail.ru


Electronic microphotographs of physical defects (surface inhomogeneities) of domestic samples of microwave multilayer integrated circuits made of low-temperature ceramics based on ceramic materials of DuPont (GreenTape) and Ferro companies using scanning electron microscopy have been obtained at a specialized workplace with a vacuum electron microscope JEOL JSM-6380 LV. Through computer simulations performed in a specialized LTCC Roughtness Circuit Generator software, transmission coefficient graphs (S21) of the microstrip transmission line were obtained with and without allowance for surface heterogeneity.
The results of the work made it possible, on the basis of experimental data on the presence of physical defects (surface heterogeneity) of domestic samples of microwave multilayer integrated circuits made of low-temperature ceramics, due to the characteristics of the materials used and their manufacturing technology, using computer simulation to conduct a quantitative analysis of the extent of their influence on signal parameters in a wide frequency range.
The results obtained are of particular interest in the design of multilayer integrated circuits based on the technology of low-temperature ceramics for radio engineering devices and systems of responsible use with frequencies of signals up to 100 GHz, since they allow to improve the adequacy and reliability of their development already at the design stage.

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