SUBSTRATE PROCESSING APPARATUS AND SHOWER HEAD
First Claim
1. A substrate processing apparatus comprising:
- a processing chamber accommodating therein a substrate to be processed;
a mounting table disposed in the processing chamber, for mounting thereon the substrate to be processed;
a shower head provided opposite to the mounting table, for injecting a processing gas into the processing chamber;
a gas exhaust unit for exhausting an inside of the processing chamber; and
a processing unit for performing a predetermined processing on the substrate to be processed in the processing chamber,wherein the shower head includes;
an upper plate made of a metal and having a gas inlet hole;
a lower plate made of a metal and having a plurality of gas through holes;
a gas diffusion space formed between the upper plate and the lower plate;
a cover member made of ceramic and having a plurality of gas injection openings positioned to correspond to the gas through holes, for covering a bottom surface of the lower plate; and
a plurality of thermally conductive members provided to connect the upper plate with the lower plate in the gas diffusion space, for transferring heat generated by the processing of the processing unit upward.
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Accused Products
Abstract
A substrate processing apparatus includes a shower head having a shower plate of which gas injection portion is formed by a two layer structure made of metal and ceramic. The shower head has an upper plate made of a metal and having a gas inlet hole; a lower plate made of a metal and having a plurality of gas through holes; a gas diffusion space formed between the upper plate and the lower plate; and a cover member made of ceramic and having a plurality of gas injection openings positioned to correspond to the gas through holes, for covering an entire bottom surface of the lower plate. The shower head further includes a plurality of thermally conductive members provided to connect the upper plate with the lower plate in the gas diffusion space for transferring heat generated by processing upward.
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Citations
17 Claims
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1. A substrate processing apparatus comprising:
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a processing chamber accommodating therein a substrate to be processed; a mounting table disposed in the processing chamber, for mounting thereon the substrate to be processed; a shower head provided opposite to the mounting table, for injecting a processing gas into the processing chamber; a gas exhaust unit for exhausting an inside of the processing chamber; and a processing unit for performing a predetermined processing on the substrate to be processed in the processing chamber, wherein the shower head includes; an upper plate made of a metal and having a gas inlet hole; a lower plate made of a metal and having a plurality of gas through holes; a gas diffusion space formed between the upper plate and the lower plate; a cover member made of ceramic and having a plurality of gas injection openings positioned to correspond to the gas through holes, for covering a bottom surface of the lower plate; and a plurality of thermally conductive members provided to connect the upper plate with the lower plate in the gas diffusion space, for transferring heat generated by the processing of the processing unit upward. - View Dependent Claims (4, 5, 6, 7, 8, 9)
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2. A substrate processing apparatus comprising:
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a processing chamber accommodating therein a substrate to be processed; a mounting table disposed in the processing chamber, for mounting thereon the substrate to be processed; a shower head provided at opposite to the mounting table, for injecting a processing gas into the processing chamber; a gas exhaust unit for exhausting an inside of the processing chamber; and a processing unit for performing a predetermined processing on the substrate to be processed in the processing chamber, wherein the shower head includes; an upper plate made of a metal and having a gas inlet hole; a lower plate made of a metal and having a plurality of gas through holes; a middle plate provided between the upper plate and the lower plate and having a plurality of gas through holes; a first gas diffusion space provided between the upper plate and the middle plate; a second gas diffusion space provided between the middle plate and the lower plate; a cover member made of ceramic and having a plurality of gas injection openings positioned to correspond to the gas through holes, for covering a bottom surface of the lower plate; and a plurality of thermally conductive members provided to connect the upper plate with the middle plate in the first gas diffusion space and to connect the middle plate with the lower plate in the second gas diffusion space, for transferring heat generated by the processing of the processing unit upward. - View Dependent Claims (3)
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10. A shower head provided opposite to a mounting table which mounts thereon a substrate to be processed in a processing chamber, for injecting a processing gas into the processing chamber, the shower head comprising:
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an upper plate made of a metal and having a gas inlet hole; a lower plate made of a metal and having a plurality of gas through holes; a gas diffusion space formed between the upper plate and the lower plate; a cover member made of ceramic and having a plurality of gas injection openings positioned to correspond to the gas through holes, for covering a bottom surface of the lower plate; and a plurality of thermally conductive members provided to connect the upper plate with the lower plate in the gas diffusion space, for transferring heat generated by processing performed in the processing chamber upward. - View Dependent Claims (13, 14, 15, 16, 17)
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11. A shower head provided opposite to a mounting table which mounts thereon a substrate to be processed in a processing chamber, for injecting a processing gas when performing a predetermined processing in the processing chamber, the shower head comprising:
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an upper plate made of a metal and having a gas inlet hole; a lower plate made of a metal and having a plurality of gas through holes; a middle plate provided between the upper plate and the lower plate, having a plurality of gas through holes; a first gas diffusion space provided between the upper plate and the lower plate; a second gas diffusion space provided between the middle plate and the lower plate; a cover member made of ceramic and having a plurality of gas injection openings positioned to correspond to the gas through holes, for covering a bottom surface of the lower plate; and a plurality of thermally conductive members provided to connect the upper plate with the middle plate in the first gas diffusion space and to connect the middle plate with the lower plate in the second gas diffusion space, for transferring heat generated by the processing performed in the processing chamber upward. - View Dependent Claims (12)
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Specification