Vasily Cherepanov, Evgeny Zubkov, Hubertus Junker, Stefan Korte, Marcus Blab et al. We present a multitip scanning tunneling microscope (STM) where four independent STM units are integrated on a diameter of 50 mm. The coarse positioning of the tips is done under the control of an optical microscope or scanning electron microscopy in vacuum. The heart of this STM is a new type of pi ... [Rev. Sci. Instrum. 83, 033707 (2012)] published Mon Mar 19, 2012.