TIAN Xue-dong, XUE Chen-yang, WANG Yong-cun, et al. Study on electro-mechanical coupling coefficient of GaAs-based HEMT-embedded micro-acceleration transducer[J]. 2013, 32(2): 63-65+69.
TIAN Xue-dong, XUE Chen-yang, WANG Yong-cun, et al. Study on electro-mechanical coupling coefficient of GaAs-based HEMT-embedded micro-acceleration transducer[J]. 2013, 32(2): 63-65+69. DOI: 10.13873/j.1000-97872013.02.027.
A kind of high electron mobility transistor(HEMT) embedded micro-acceleration transducer structure GaAs-based is designed and manufactured.By simulation and experiments
electro-mechanical characteristics of HEMT sensitive unit is studied under action of different acceleration parallel to the HEMT growth direction(Z direction).The experimental results show that the sensitive unit HEMT electro-mechanical coupling coefficient is stable in the low range(0
1
5 gn) of GaAs-based HEMT micro-acceleration transducer
which is 10-8and two orders higher than electro-mechanical coupling coefficient 10-10 of conventional Si piezoresistive acceleration transducer.
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references
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