MICRO-ENVIRONMENTAL SENSOR AND MANUFACTURE AND USAGE THEREOF

摘要

A method of making a microenvironmental sensor for neurological use in which the sensor is formed on a silicon wafer (7) by the use of known integrated circuit techniques. A mask is applied to define the outline of the sensor, trenches are etched surrounding the sensor by the use of an anisotropic etchant and the sensor is separated by etching surplus silicon from the rear surface of the wafer.