Design and Fabrication of a Micro Controller Based Glucose Sensor

Abstract

Design and fabrication of a Glucose Oxidase (GOD) sensor that uses a PIC micro controller to monitor the glucose concentration is attempted as a part of the final year project for the Diploma in Microelectronics. The layout of the sensor chip was done using 'Virtuoso' cadence IC design tools. Three different geometry configurations were designed. Masks were fabricated in-house at the Temasek Microelectronics Center using DWL 66 direct write laser from Heidelberg Instruments. The fabrication process involves thin film deposition, lift-off photolithography and GOD immobilization. The sensor output is conditioned and a PIC micro controller based circuit was designed to display the measured glucose level.