Compact Neural Amplifier for Next-Generation Brain-Machine Interfaces

Brain-machine interfaces (BMI) are electronic devices that form an interconnection between the users brain and an external device through which the user can control the device and the device can apply stimulation to the users brain or nervous system. BMIs have undergone a rapid evolution in development and applications. While the first...

Fabrication and characteriation of Josephson parametric amplifiers

In this thesis, a we have designed and fabricated a Josephson Parametric Amplifier (JPA) using a new double-angle evaporation method without a Dolan bridge. We have found and resolved several issues in the fabrication procedure, but it requires further tuning before being fully functional. We have also simulated the behaviour of a general...

A transceiver ASIC for a single-cable 64-element intra-vascular ultrasound probe

This work presents an ASIC designed to be integrated on the tip of an intra-vascular ultrasound catheter, capable of interfacing 64 ultrasonic transducer elements to an imaging system using only one micro-coaxial cable.<br/>A prototype chip has been taped out that can be used to transmit acoustic waves using a small-area transmit switch. The...

Silicon-based Broadband Amplifier Design