Patent ID: 11892473
Assignee: INSTITUCIÓ CATALANA DE RECERCA I ESTUDIS AVANÇATS
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 14:
15. An electronic apparatus, comprising:
an electronic device comprising:
a gate electrode structure;
a dielectric structure arranged over said gate electrode structure; and
a charge sensing structure comprising at least one 2-dimensional charge sensing layer configured to sense at least one of electrical charges and electrical charge density changes induced by an external physical quantity, and that is configured and arranged over said dielectric structure to provide a gate capacitance between the charge sensing structure and the gate electrode structure, wherein said charge sensing structure shows a quantum capacitance in series with said gate capacitance resulting in a total capacitance between the charge sensing structure and the gate electrode structure;
a voltage detector electrically connected to the charge sensing structure or the gate electrode structure, to detect an output voltage stored in said total capacitance and that is representative of said sensed electrical charges;
wherein the electronic apparatus further comprises at least an input terminal electrically connected to said gate electrode structure and that is accessible to apply thereto a gate voltage selected to, both:
make the electronic device operate around a most sensitive point of fermi level of the charge sensing structure; and
tune the quantum capacitance to modify a sensitivity and dynamic range of the electronic device.