07-01-2021 дата публикации
Номер: US20210005426A1
An apparatus for treating a substrate includes a chamber having a treatment space therein, a support unit that supports the substrate in the treatment space, a gas supply unit that supplies, into the treatment space, a process gas used to treat the substrate, a plasma source that generates plasma by exciting the process gas supplied into the treatment space, heaters that heat the support unit for different regions of the substrate, a heater power supply that applies powers to the heaters, a plurality of heater cables that deliver the powers to the heaters, and variable capacitors configured be grounded, the variable capacitors being connected to the plurality of heater cables, respectively. 1. An apparatus for treating a substrate , the apparatus comprising:a chamber having a treatment space therein;a support unit configured to support the substrate in the treatment space;a gas supply unit configured to supply, into the treatment space, a process gas used to treat the substrate;a plasma source configured to generate plasma by exciting the process gas supplied into the treatment space;heaters configured to heat the support unit for different regions of the substrate;a heater power supply configured to apply powers to the heaters;a plurality of heater cables configured to deliver the powers to the heaters; andvariable capacitors configured to be grounded, the variable capacitors being connected to the plurality of heater cables, respectively.2. The apparatus of claim 1 , further comprising:a filter configured to pass the powers through the plurality of heater cables and interrupt introduction of RF power into the heater power supply,wherein the plurality of heater cables are connected between the filter and the heaters.3. The apparatus of claim 2 , wherein the variable capacitors configured to be grounded are connected to input terminals of the filter.4. The apparatus of claim 3 , wherein the filter includes a plurality of terminals claim 3 , andwherein the variable ...
Подробнее