Specific Process Knowledge/Back-end processing/Laser Micromachining Tool/fluence

Fluence

The fluence produces by a laser is, by definition, the energy delivered by a laser pulse ($E_{pulse}$) per surface unit ($S$) and it is given in J/cm2.

The function $E_{pulse}$ is defined as :

$E_{pulse}={\frac {\overline {P}}{f}}\,$

Where (${\overline {P}}$) is measured with the laser sensor power measurement and the repetion rate ($f$) is set in the settings.