Design and Simulation of CMOS Based Magnetic Sensor for Biosensing Applications, M.Sc. Thesis Sharif University of Technology ; Akbari, Mahmood (Supervisor) ; Fotowat-Ahmady, Ali (Supervisor)
Abstract
This paper presents a scalable and ultrasensitive magnetic biosensing scheme based on on-chip LC resonance frequency-shifting. The sensor transducer gain is demonstrated as being location-dependent on the sensing surface and proportional to the local polarization magnetic field strength |B|2 generated by the sensing inductor. To improve the gain uniformity, a periodic coil is proposed as a substitution for the standard process coil. As an implementation example, the circuit is designed in a 65nm CMOS process. The spatially uniform sensor gain of the array is verified by COMSOL simulations. Overall, the presented sensor demonstrates an improvement in the uniformity of the inductor’s magnetic...
Cataloging briefDesign and Simulation of CMOS Based Magnetic Sensor for Biosensing Applications, M.Sc. Thesis Sharif University of Technology ; Akbari, Mahmood (Supervisor) ; Fotowat-Ahmady, Ali (Supervisor)
Abstract
This paper presents a scalable and ultrasensitive magnetic biosensing scheme based on on-chip LC resonance frequency-shifting. The sensor transducer gain is demonstrated as being location-dependent on the sensing surface and proportional to the local polarization magnetic field strength |B|2 generated by the sensing inductor. To improve the gain uniformity, a periodic coil is proposed as a substitution for the standard process coil. As an implementation example, the circuit is designed in a 65nm CMOS process. The spatially uniform sensor gain of the array is verified by COMSOL simulations. Overall, the presented sensor demonstrates an improvement in the uniformity of the inductor’s magnetic...
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