基于场效应管型气敏传感器的微电子工艺 实验设计

Innovative Design of Microelectronic Process Experiment Based on Field-effect Transistor Gas Sensors

  • 摘要: 集成电路是社会发展的基础性产业,其发展水平关乎到国家的综合国力。然而现阶段我国集成电路产业人才短缺,培养具有创新实践能力的集成电路产业人才刻不容缓。微电子工艺是集成电路的基础,更是培养集成电路人才创新实践能力的重要实践课程。因此,设计了基于场效应管型气敏传感器的微电子工艺实验,采用微电子工艺方法制备硅基电极并利用水相法制备敏感材料SnO2/ZnO得到场效应管型气敏传感器。采用X射线衍射对敏感层材料进行表征,并进一步对传感器的气敏性能进行了测试。该实验涵盖了材料合成及表征、微电子工艺、器件制备、气敏特性测试等手段,涉及材料学、微电子及集成电路学科。并且将科研内容与实验教学相结合,有助于激发学生的科研兴趣,进而培养学生的创新实践能力。

     

    Abstract: Integrated circuits are the fundamental industry for society development, whose level of development is related to overall national power of the country. However, we are facing talent shortage in integrated circuits at present, it is imperative in cultivation of talents with the capability of innovation and practice. Microelectronic process is the foundation of integrated circuits, which is also the important experimental course to cultivate the innovative and practical abilities of integrated circuit talents. Therefore, we designed the microelectronic process experiment based on field-effect transistor gas sensors, microelectronic process was used to create the silicon based electrodes while wet chemistry route was applied for sensing material SnO2/ZnO fabrication to make field-effect transistor gas sensors. X-ray diffraction was used for sensing material characterization and the gas sensitivities of the sensors were also investigated. This experiment covers material synthesis and characterization, microelectronic process, device fabrication and gas sensitivity measurement, which are related to subjects from materials science, microelectronics to integrated circuits and incorporates research content into experiment teaching, can help stimulate students' interest in scientific research and further cultivate students' innovative and practical capabilities.

     

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