主权项 |
1. A lithographic apparatus, comprising
a first body comprising a heat source; a second body; and a heater device; wherein the second body has a facing surface facing the first body via a gap between the first and second bodies, wherein the heat source is for providing a heat flux to the second body via the gap, wherein the heater device is attached to the facing surface, and wherein the heater device is configured to provide a further heat flux to the second body. |