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Microminiature Pressure Sensors Based on Diode Structures

Microminiature Pressure Sensors Based on Diode Structures

Abstract

The paper analyzes modern microminiature pressure sensors made on various diode structures, in particular on organic light-emitting diodes, field-effect transistors, photovoltaic elements and multi-circuit piezoresistive sensors. The possible areas of application of such sensors, their main advantages and disadvantages are shown. The study of 4 groups of samples of diode heterostructures based on CdS / ZnS / CuS / CdTe was carried out and the perspective of using pressure sensors based on these materials as an analogue of existing semiconductor devices was shown. On the basis of experimental studies with the application of pressure, twisting and illumination, it is substantiated that these structures are piezoelectric. The complete technological process of the step-by-step creation of these structures is presented. The obtained structures were analyzed: structural diagrams, current-voltage and piezoelectric characteristics in comparison with the characteristics of other piezoelectric materials are given. Possible areas of application of such structures are described. The provided design schemes and parameters of the obtained diode structures may be of interest to a wide range of specialists in the field of sensor technology and automation of various technological processes of microelectronic equipment manufacturing. It is shown that by changing the sensor manufacturing technologies and the concentration of chemical elements in the obtained films, it is possible to change the sensitivity of the sensor and the dynamic range of its operation, adapting the sensor parameters to the field of its application in the relevant measuring electronic equipment and pressure control systems.

В роботі проведено детальний аналіз сучасних мікромініатюрних датчиків тиску виконаних на різноманітних діодних структурах. Показані можливі області застосування таких датчиків, їх головні переваги та недоліки. Проведено дослідження діодних гетероструктур на основі CdS / ZnS / CuS / CdTe та показано перспективність використання датчиків тиску на основі цих матеріалів в якості аналогу існуючих напівпровідникових приладів. На основі проведених експериментальних досліджень обґрунтовано, що ці структури є п’єзоелектричними. Наведені конструктивні схеми досліджених структур та їх вольт-амперні характеристики. Описані можливі області застосування таких структур. Надані конструктивні схеми та параметри отриманих діодних структур можуть бути цікавими для широкого кола фахівців в області сенсорної техніки та автоматизації різноманітних технологічних процесів виготовлення мікроелектронної апаратури. Показано, змінюючи технології виготовлення датчиків та концентрацію хімічних елементів в отриманих плівках можна змінювати чутливість датчика та динамічний діапазон його роботи, пристосовуючи параметри датчика до галузі його застосування в відповідній вимірювальній електронній апаратурі та в системах контролю тиску.

Keywords

вольт-амперна характеристика, diode, п’єзоефект, УДК 544.6:544.5, УДК 621.3, UDC 549.3, чутливість, pressure sensor, current-voltage characteristic, УДК 549.3, dynamic range, конструктивна схема, УДК 62.98, piezo effect, heterostructure, UDC 544.6:544.5, діод, sensitivity, UDC 621.3, гетероструктура, UDC 62.98, датчик тиску, UDC 53.08, structural diagram, УДК 53.08, динамічний діапазон

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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