Patent ID: 8748853

Claim:
A chamber apparatus for operating with a laser apparatus, the chamber apparatus comprising: a chamber including an inlet through which a laser beam from the laser apparatus enters the chamber; a target supply unit configured to supply a target material to a predetermined region inside the chamber; a magnetic field generation unit configured to generate a magnetic field across the predetermined region inside the chamber; a collection unit including a substrate and configured to collect debris, the debris being generated when the target material is irradiated with the laser beam and entering the substrate by traveling along the magnetic field; and a temperature control unit configured to retain a temperature of at least a part of the collection unit within a predetermined temperature range, the temperature control unit including a cooler including a cooling member and configured to cool the substrate, a heater contacting with the substrate and configured to heat the substrate, the heater being sandwiched between the substrate and the cooling member, a temperature sensor configured to detect a temperature of the substrate, and a controller configured to control at least one of the cooler and the heater based on the temperature detected by the temperature sensor.