Process apparatus
First Claim
1. A process apparatus including an airtight process vessel, an exhaust system for exhausting gas from the process vessel, and a baffle plate for partitioning the process vessel into a process chamber for processing an object and an exhaust passage communicating with the exhaust system,wherein the baffle plate includes a plurality of slits through which the process chamber and the exhaust passage communicate with each other, wherein each slit includes an exhaust-passage opening facing the exhaust passage and a process-chamber opening facing the process chamber, wherein at least one side of said process-chamber opening includes a sloped inner surface at least along the slit length, said sloped inner surface of the process-chamber opening formed not more than ½
- of the thickness of the baffle plate and widens towards the process-chamber opening, wherein at least one side of said exhaust-passage opening includes an inner surface that is substantially perpendicular to the surface of the baffle plate, said inner surface of the exhaust-passage opening formed not more than ½
of the thickness of the baffle plate, and wherein the width of said exhaust-passage opening is greater than the minimum width of the process-chamber opening that is surrounded by an inner rim of the sloped inner surface.
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Accused Products
Abstract
The present invention provides a process apparatus including an airtight process vessel, an exhaust system for exhausting gas from the process vessel, and a baffle plate for partitioning the process vessel into a process chamber for processing an object and an exhaust passage communicating with the exhaust system, the baffle plate has a plurality of slits through which the process chamber and the exhaust passage communicate with each other, and each of the slits has a tapered surface on an inner surface toward the process chamber, the tapered surface corresponding to not less than ¼ of a depth of the slit.
128 Citations
16 Claims
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1. A process apparatus including an airtight process vessel, an exhaust system for exhausting gas from the process vessel, and a baffle plate for partitioning the process vessel into a process chamber for processing an object and an exhaust passage communicating with the exhaust system,
wherein the baffle plate includes a plurality of slits through which the process chamber and the exhaust passage communicate with each other, wherein each slit includes an exhaust-passage opening facing the exhaust passage and a process-chamber opening facing the process chamber, wherein at least one side of said process-chamber opening includes a sloped inner surface at least along the slit length, said sloped inner surface of the process-chamber opening formed not more than ½ - of the thickness of the baffle plate and widens towards the process-chamber opening,
wherein at least one side of said exhaust-passage opening includes an inner surface that is substantially perpendicular to the surface of the baffle plate, said inner surface of the exhaust-passage opening formed not more than ½
of the thickness of the baffle plate, andwherein the width of said exhaust-passage opening is greater than the minimum width of the process-chamber opening that is surrounded by an inner rim of the sloped inner surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- of the thickness of the baffle plate and widens towards the process-chamber opening,
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9. A baffle plate for partitioning a process vessel into a process chamber for processing an object and an exhaust passage communicating with the exhaust system, said baffle plate including a plurality of slits through which the process chamber and the exhaust passage communicate with each other,
wherein each slit includes an exhaust-passage opening facing the exhaust passage and a process-chamber opening fag the process chamber, wherein at least one side of said process-chamber opening includes a sloped inner surface at least along the slit length, said sloped inner surface of the process-chamber opening formed not more than ½ - of the thickness of the baffle plate and widens towards the process-chamber opening,
wherein at least one side of said exhaust-passage opening includes an inner surface that is substantially perpendicular to the surface of the baffle plate, said inner surface of the exhaust-passage opening formed not more than ½
of the thickness of the baffle plate, andwherein the width of said exhaust-passage opening is greater than the minimum width of the process-chamber opening that is surrounded by an inner rim of the sloped inner surface. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
- of the thickness of the baffle plate and widens towards the process-chamber opening,
Specification