The Semiconductor Superiority Act amends federal tax law to clarify how the advanced manufacturing investment credit applies to semiconductor manufacturing facilities located in outer space, including low-Earth orbit. The bill allows companies building semiconductors in space to claim tax credits for equipment and property used to operate these facilities, even if some components are located on Earth or used for transportation between Earth and the space facility. The legislation specifies that qualified property can include flight control operations, crew habitation, facility repairs, and cargo transportation, while excluding launch vehicles themselves. The tax credit provisions apply to any property placed in service after the bill becomes law. This legislation primarily affects aerospace and technology companies that may invest in space-based semiconductor manufacturing, potentially lowering their tax burden and encouraging investment in this emerging industry sector.