The Faint Particle Trigger (FPT) was developed for the IceCube Neutrino
Observatory to enhance the detection efficiency for faint signatures, produced by
free Fractionally Charged Particles (FCP) predicted in several Standard Model (SM) extensions. A previous IceCube analysis has shown a reduced trigger efficiency in detecting FCP with a charge of e/3 due to the $z^2$ dependence of photon production processes. The FPT addresses this shortcoming by incorporating a so far unused hit type, so called SLC hits in the trigger decision. These are single isolated hits that are not used for triggering high energy signatures in IceCube. The FPT employs a sliding time window to analyze hits, utilizing four cuts to
remove noise and bright background contributions. The noise contribution is effectively
decreased to a few Hz by velocity and directional consistency of hit pairs. Furthermore
a part of the dominating atmospheric muon rate is reduced, by requiring a minimum
fraction of SLC hits in the trigger window. The FPT significantly improves the trigger efficiency by a factor of 1.55, compared to standard triggers, while increasing the event rate in IceCube by a factor 1.004. The trigger algorithm was tested and successfully deployed at South Pole in November 2023.