Persons

Some aspects in designing the integrated circuit based on the heterojunction SiGe transmitters have been considered. The specific feature of the circuit is the application of high-speed ADC, as well as the use of original circuit engineering for the phase adjustment of frequency with low value of phase noise. The simulation and experimental studies of the radio signal transmission for 1.35 Gbit/s rate have been performed. The experimental results well agree with the simulation results.

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The technology of forming the carbon emitters for the integrated field emission elements has been developed. The studies have revealed the modes of preparing various film structures of carbon: diamond, graphite, graphene-like. The low-temperature method for producing the ultrafine diamonds has been developed. The high-emission properties of the nanodiamond-graphite emitters have been provided due to the effect of self-organization of diamond nanocrystals in graphite films during deposition at low pressure vapor of ethanol using a highly-nonequilibrium microwave plasma.

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Some issues in designing the equalizer integrated circuit based on the heterojunction SiGe transistors have been considered. The specific feature of the device is the application of high-speed adjusted equalizer units. The simulation and experimental investigations of the signal transmission device for 12.5 Gb/s rate have been performed. The experimental results well agree with the simulation ones.

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The up-to-date systems of space communications, navigation, etc require the development of the electronic component base. The application of the reliability increase methods results in degradation of the efficiency, power consumption and area. The heavy charged particles, passing through the semiconductor material, ionize it, generating huge volume of electron-hole pairs. Further, the particles can be captured by the electric field and can induce a voltage pulse on the information lines. In this study this pulse can lead to the data distortion and the functioning failures. To reduce the impact of single events the specialized cells, permitting to keep the data, even under a heavy ion hit, are used. Such cells are based on multiplying the data for their further recovery after the impact. The major problem is the simultaneous impact of the heavy charged particles upon several copies of the data. The analysis of the sensing modes of the DICE based latch with an asynchronous reset signal has been performed. The method for selection of the sets of sensitive nodes, the mutual position of which affects the reliability of the latch to a single ion hit, has been shown. Based on this method a topological view of the trigger cell has been developed. The minimum distance between the sensitive nodes of the produced cell is more than 4.5 times longer than that one of its standard analog. An increase in the area of obtained DICE based flip-flop trigger with an asynchronous reset was only 8%.

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Some aspects of designing the NRZ to NRZM converter based on GaAs heterojunction bipolar transistors have been considered. The peculiarity of the circuit is the application of inductive correction permitting to expand the converter bandwidth. The computer simulation and experimental studies of the device for 12.5 GB/s frequency rate have been performed. The experimental results well agree with the simulation results.

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The possibility of using the new SiGe technology for realization of active microwave-units of receiving-transmitting modules has been considered. A comparison analysis of the technological processes for realization of the control devices has been presented. The estimation of possible attainable parameters of the X - band core chip realized according to SiGe technology has been made.

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Rapidly progressing space systems demand designing reliable electronic devices. In the presence of space radiation different types of malfunctions could happen in the ICs. The high energy particles collide with semiconductor material and deposit charge, which might cause current/voltage impulses on the logic outputs of cells. These current/voltage impulses could lead to single effects. One of approaches to suppress single events is using special trigger cells hardened against heavy ions. In this work a new flip flop trigger, based on DICE, has been presented. This proposed trigger is intended to be used for input tracks onboard apparatus. One of the specific featuris of input tracks is a big number of configuration registers. The data change in those register is extremely rare, hereby proposed trigger could be used here. Also, the application criterion for proposed trigger has been obtained. The calculations demonstrate comparison reliability for the proposed flip flop trigger and the standard one have been presented. Finally the physical level was given. In this paper the new flip flop trigger was presented. This trigger is specially aimed for input tracks. The proposed trigger has shown similar reliability with the standard one, but has 20 % less area. This area reduction could lead to area reduction of input track up to 10 %.

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The problem of choosing the modulator structural circuit in designing delta sigma ADC, intended for multistandard processing, has been considered. An approach to creation of the modulator architecture and to revealing the restrictions related to the application specifics has been proposed. The multicascade topology permits simply to switch on/off the multistandard module cascades while retaining the stability and low susceptibility to the technology imperfection. Such modulators are capable to operate concurrently in two modes (e.g. to sample GSM and Bluetooth signals) by employing the specific switch interface.

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