Fig. 3
![Fig. 3](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs40824-020-00195-2/MediaObjects/40824_2020_195_Fig3_HTML.png)
a Simulation of the intensity of an electrical field over a 145 μm glass placed above a circuit with width tracks of 225 μm and a gap of 50 μm. The white lines indicate the cross section shown in part b. b cross section of the electric field. c Peak value of the electrical field along the glass surface depending on the width and separation of the tracks and d Homogeneity of the electrical field depending on the width and separation of the tracks. e Electrical field along the surface of the glass for a circuit with 3 mm width tracks and 20 μm gap