A method of manufacturing a component that will, in use, experience a
thermal load and will be operated at a mean temperature, includes
selecting a material having a coefficient of thermal expansion having a
zero-crossing at a first temperature and manufacturing the component
using the selected material at a second temperature. The first
temperature is between the second temperature and the mean operating
temperature. Deformation of the component at the mean operating
temperature are thus minimized. A lithographic apparatus includes a
radiation system configured to provide a beam of radiation and a
projection system configured to project a patterned beam of radiation
onto a target portion of a substrate. At least one component of the
apparatus that in use experiences a thermal load is made of the selected
material. A device manufacturing method includes providing a beam of
radiation using a radiation system, patterning the beam, and projecting
the patterned beam onto a target portion of the layer of
radiation-sensitive material using a projection system. At least one
component of the radiation system and/or projection system that
experiences a thermal load in use is made of the selected material.