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This work reports the bias and pressure sensitivity of AlGaN/GaN High Electron Mobility Transistors (HEMTs) sensing elements strategically placed on a pressure sensitive diaphragm clamped at its edges. The sensitivity was over 150 times greater in the weak inversion regime than in the strong inversion regime of the HEMT, leading to a drain current change of >38% when a pressure of 50bar was applied...
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