Table 1: Specifications of Donut Probe and Probe Array for 20µm Penetration

Parameters/Dimensions Value
Penetration 20µm
Stimulating current 15.8µA
Radius of central electrode (r) 15µm
Spacing bet. central & donut electrodes 20µm
Inner radius of donut electrode (r1) 35µm
Outer radius of donut electrode (r2) 38µm
Thickness of electrodes 2µm
Mini. spacing between two probes 150µm
Resolution 150µm×150µm
Material IrOx