Dariusz Klepacki, Wieslaw Sabat, Kazimierz Kamuda and Kazimierz Kurylo
This paper aims to present the problems connected with integrity of electrical signals in microelectronic hybrid systems made on metal substrates. The systems made on ferritic and…
Abstract
Purpose
This paper aims to present the problems connected with integrity of electrical signals in microelectronic hybrid systems made on metal substrates. The systems made on ferritic and austenitic sheet substrates were selected for the analysis.
Design/methodology/approach
For experimental investigations for the identification of the per-unit-length parameters for the simplest planar structures realized in thick-film technology on metal substrates, three types of path test systems with different geometric parameters were made. For the test circuits’ realization, the metal substrates of ferritic stainless steel of H17 grade (1.4016) with a thickness of 1 mm were selected. The sizes of 110 × 60 mm were obtained by laser cutting which process was required to obtain sufficient flatness of the substrates. Measurements were conducted using special elaborated equipment.
Findings
For selected configurations of conductive paths, the results of calculations and measurements of the range of variability of residual parameters for the systems of mutually parallel paths were presented. For selected path systems, the results of signals integrity analysis in mutually parallel path systems have been included.
Originality/value
The influence of configuration of paths, their geometrical and physical parameters on the value of residual elements parameters was determined, and their role in propagation process of fast-changing signals in the mutually parallel path systems was analyzed. These effects are very important from the point of view of electromagnetic compatibility and signal integrity of electronic circuits.
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Włodzimierz Kalita and Kazimierz Kamuda
The paper focuses on CAN‐bus based systems: a determination of the configuration parameters by analysis of their characteristic structure, topology conditions and transmission…
Abstract
Purpose
The paper focuses on CAN‐bus based systems: a determination of the configuration parameters by analysis of their characteristic structure, topology conditions and transmission properties.
Design/methodology/approach
Voltage measurements were made in a test circuit of CAN‐bus together with calculations of adequate waveforms with the help of elaborated programs. The signal parameters transmitted in bus lines were logged and measured using digital oscilloscope.
Findings
The results allow some conclusions to be drawn about the correctness of assumptions in realising the configuration
Originality/value
The results of the investigations have proved the possibilities of parameters calculation, required to choose relevant CAN controller configuration during the design.