Piezoresistive properties of 3C-SiC films anodically bonded to aluminosilicate glass substrates

Current leakage problems observed in conventional 3C-SiC/Si heterojunction piezoresistive structures at high temperatures have been resolved through t he anodic bonding of the 3C-SiC thin films onto insulating aluminosilicate glass substrates having a thermal expansion coefficient close to that of Si . The gauge factor of such 3C-SiC/SiO2/glass structures was extremely stabl e up to temperatures as high as 600K with a fluctuation of < 5%.