Hall Study of Conductive Channels Formed in Germanium by Beams of High-Energy Light Ions

The implantation of the high-energy ions of H+ or He+ in germanium leads to the creation of buried conductive channels in its bulk with equal concentrations of acceptor centers. These centers are the structure defects of the crystal lattice which arise in the course of deceleration of high-energy particles. This method of introducing electrically active defects is similar to the doping of semiconductors by acceptor-type impurities. It has been established that the density of defects increases with the implantation dose till ≈5×10^15 cm−2. The further increase of the implantation dose does not affect the level of doping. In the range of applied doses (10^12–6×10^16) cm−2, the Hall mobility of holes in the formed conducting channels is practically independent of the implanted dose and is about (2-3)×10^4 cm2/Vs at 77 K. The doping ofthe germanium by high-energy ions of H+ or He+ to obtain conducting regions with high hole mobility can be used in the microelectronics technology.

Design on smart water meter system based on Cloud Computing

The smart water meter based on cloud computing is a new instrument that uses modern sensor technology, communication technology and modern microelectronics technology to measure water volume, transfer water data and settle transactions. The traditional water meter only has the function of flow collection and pointer mechanical display of water consumption. Compared with traditional water meter, smart water meter has great progress. With the development of wireless transmission technology and mobile communication network, remote water meter technology begins to develop rapidly.

Practice and Exploration of Engineering Case Teaching of Microelectronics Technology Specialty in Higher Vocational Colleges

Microelectronics technology major is a strong professional and practical engineering specialty in higher vocational colleges, which involves the design and manufacturing process of semiconductor devices and integrated circuits and other related professional knowledge, and has higher requirements for practical teaching conditions. Therefore, higher vocational colleges are facing certain challenges in the teaching process. With the deepening of education reform, engineering case teaching is gradually becoming mature, especially in this kind of typical engineering specialty with significant teaching effect. This paper mainly discusses the engineering case teaching practice of microelectronics technology specialty in higher vocational colleges. Starting from the characteristics and functions of engineering case teaching, it explores a practical and effective engineering case teaching mode, actively introduces typical engineering case teaching, and continuously optimizes the course teaching mode, as well as improves the quality and effect of engineering case teaching for microelectronics technology specialty.

ИСПОЛЬЗОВАНИЕ ПОВЕРХНОСТНЫХ СВОЙСТВ МАТЕРИАЛОВ В МИКРОЭЛЕКТРОНИКЕ

Рассмотрено влияние поверхностных свойств материалов, применяемых в технологии микроэлектроники, на создаваемые устройства. На основе проведенных расчетов и экспериментальных данных рассчитаны анизотропия поверхностных свойств кристаллов и температура их поверхностного плавления. Рассмотрено использование анизотропии поверхностных свойств в технологических операциях. The paper considers the influence of surface properties of materials used in microelectronics technology on the devices created. Based on the performed calculations and experimental data, the anisotropy of the crystals surface properties and the temperature of their surface melting have been calculated. The use of anisotropy of surface properties in technological operations have also been considered.