作者: T Akiyama , D Briand , N F de Rooij
DOI: 10.1088/0960-1317/22/8/085034
关键词: Cantilever 、 Gauge factor 、 Materials science 、 Composite material 、 Gauge (firearms) 、 Transverse orientation 、 Single element 、 Epitaxy 、 Electronic engineering 、 Wheatstone bridge 、 Doping
摘要: This paper presents the experimentally obtained gauge factor (GF) of 4H-SiC piezoresistors, fabricated out n-type epitaxial layer and characterized on millimeter-size SiC cantilever beams at room temperature. It was found that GF is dependent piezoresistor's length width. Piezoresistors narrower than approximately 30 µm showed a width-dependent GF. The highest 20.8 with single element piezoresistor in transverse orientation. In longitudinal orientation, −10, which clustered plural identical elements. Essential factors to consider for design optimum piezoresistors Wheatstone bridge configuration are presented.