COMBO BIO AND TEMPERATURE DISPOSABLE SENSOR ON FLEXIBLE FOIL

摘要

A bio-fluid sensor is formed by depositing polyimide on a glass substrate. Gold and platinum are deposited on the polyimide and patterned to form fluid sensing electrodes, signal traces, and a temperature sensor. The fluid sensor is then fixed to a flexible tape and peeled off of the glass substrate.

主权项

1. A method for forming a fluid sensor test strip, the method comprising:
depositing a first dielectric material; etching a plurality of apertures in the first dielectric material; depositing a first metal layer on the first dielectric material and in the apertures to form a first and a second electrode and contact pads in the apertures; depositing a second metal layer in contact with the first metal layer, the second metal layer being of a material that has a resistance generally proportional to temperature; etching the second metal layer to define a temperature sensing resistor of the second metal layer; depositing a second dielectric material in the apertures adjacent the first and second metal layers; and depositing an enzyme on the first and second electrodes and extending from the first electrode to the second electrode, the enzyme configured to pass a sensor current between the first and the second electrodes indicative of a concentration of a test chemical in a test fluid when the test fluid is placed on the enzyme.