{"title":"Thermally excited micromechanical vacuum resonator","authors":"Wang Yaqiang, Jin Zhonghe, Wang Yuelin, Ding Chun","doi":"10.1109/ICSICT.1998.786540","DOIUrl":null,"url":null,"abstract":"A micromechanical resonator is proposed and realized. It consists of a single-crystal silicon beam and two P-type silicon resistors. One resistor is used to excite the vibrating beam and the other to sense vibration of the beam. The dimensions of the resonator are about 4/spl times/2.5 mm/sup 2/, the resonant frequency is about 7.8 KHz, Q factor about 190 in air and above 2500 in vacuum degree of 7.5/spl times/10/sup -4/ Pa. The theory of thermal excitation is analyzed and the characteristics of the resonator are tested. We conclude that the resonator can be applied to vacuum measurement by the means of closed-loop resonating circuit. The design and realization of the circuit are described.","PeriodicalId":286980,"journal":{"name":"1998 5th International Conference on Solid-State and Integrated Circuit Technology. Proceedings (Cat. No.98EX105)","volume":"57 5","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1998-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"1998 5th International Conference on Solid-State and Integrated Circuit Technology. Proceedings (Cat. No.98EX105)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICSICT.1998.786540","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
A micromechanical resonator is proposed and realized. It consists of a single-crystal silicon beam and two P-type silicon resistors. One resistor is used to excite the vibrating beam and the other to sense vibration of the beam. The dimensions of the resonator are about 4/spl times/2.5 mm/sup 2/, the resonant frequency is about 7.8 KHz, Q factor about 190 in air and above 2500 in vacuum degree of 7.5/spl times/10/sup -4/ Pa. The theory of thermal excitation is analyzed and the characteristics of the resonator are tested. We conclude that the resonator can be applied to vacuum measurement by the means of closed-loop resonating circuit. The design and realization of the circuit are described.