This was accomplished with a Scanning Tunneling Microscope (STM), a device developed at an IBM laboratory in Zurich whose inventors were awarded the 1986 Nobel Prize in physics.
Esto se logró con un Microscopio de Efecto Túnel (STM, o Scanning Tunneling Microscope), desarrollado en un laboratorio de la IBM en Zurich, cuyos inventores recibieron el Premio Nobel de física en 1986.