Patent ID: 8835984

Claim:
A high electron mobility transistor (HEMT) based sensor comprising: a HEMT having a source, a drain, and a gate area at least one target receptor on the gate region of the HEMT, the at least one target receptor functionalizing the HEMT as a sensor for a target corresponding to the at least one target receptor, wherein the source of the HEMT is configured to receive a fixed voltage and an output current resulting from exposure of the at least one target receptor to an amount of the target is sensed at the drain of the HEMT; and wherein the HEMT is an AlGaAs/GaAs HEMT, an InGaP/GaAs HEMT, an InAlAs/InGaAs HEMT, an AlGaAs/InGaAs PHEMT, an InAlAs/InGaAs PHEMT, an Sb based HEMT, or an InAs based HEMT.