Substrate processing apparatus
First Claim
1. A substrate processing apparatus comprising:
- a processing chamber defined by an outer wall and provided with a holding table for holding a processing substrate, an exhaust port for exhausting the inside of said processing chamber, a microwave transmissive window provided on said processing chamber as part of said outer wall so as to face said processing substrate, a microwave antenna provided on said microwave transmissive window and electrically connected to a microwave power supply, a plasma gas supply portion for supplying a plasma gas into said processing chamber, an inner partition wall formed so as to surround said holding table, and a partition wall attaching portion inserted between said processing chamber and said microwave transmissive window to form part of said outer wall and attached with said inner partition wall, said inner partition wall dividing a space inside said processing chamber into a first space containing said holding table and a second space defined by said outer wall and said inner partition wall and a gap between said microwave transmissive window and said partition wall attaching portion being exhausted through said second space.
3 Assignments
0 Petitions
Accused Products
Abstract
A substrate processing apparatus (10A) using a microwave plasma is disclosed wherein an inner partition wall (15) is provided within a process chamber (11) so that the inside of the process chamber (11) is divided into a space (11A) where a substrate to be processed is housed and a space (11B) which is defined by the inner partition wall (15) and the outer wall of the process chamber (11). By having such a structure, contamination of the substrate by a gas separated from the sealing material and contamination of the substrate caused by abnormal discharge can be prevented, thereby enabling clean processing of the substrate.
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Citations
11 Claims
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1. A substrate processing apparatus comprising:
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a processing chamber defined by an outer wall and provided with a holding table for holding a processing substrate, an exhaust port for exhausting the inside of said processing chamber, a microwave transmissive window provided on said processing chamber as part of said outer wall so as to face said processing substrate, a microwave antenna provided on said microwave transmissive window and electrically connected to a microwave power supply, a plasma gas supply portion for supplying a plasma gas into said processing chamber, an inner partition wall formed so as to surround said holding table, and a partition wall attaching portion inserted between said processing chamber and said microwave transmissive window to form part of said outer wall and attached with said inner partition wall, said inner partition wall dividing a space inside said processing chamber into a first space containing said holding table and a second space defined by said outer wall and said inner partition wall and a gap between said microwave transmissive window and said partition wall attaching portion being exhausted through said second space. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification