In some embodiments, an indexed inline substrate processing tool may include a substrate carrier having a base and pair of opposing substrate supports having respective substrate support surfaces that extend upwardly and outwardly from the base; and a plurality of modules coupled to one another in a linear arrangement, wherein each module of the plurality of modules comprises an enclosure having a first end, a second end, and a lower surface to support the substrate carrier and to provide a path for the substrate carrier to move linearly through the plurality of modules, and wherein at least one module of the plurality of modules comprises: a window disposed in a side of the enclosure; a heating lamp coupled to the side of the enclosure; a gas inlet disposed proximate a top of the enclosure; and an exhaust disposed opposite the gas inlet.