THERMALLY CONDUCTIVE SILICONE SHEET, MANUFACTURING METHOD THEREOF, AND PLASMA PROCESSING APPARATUS USING THE SAME
First Claim
1. A thermally conductive silicone sheet for a plasma processing apparatus, having 100 parts by weight to 2000 parts by weight of thermally conductive particles with respect to 100 parts by weight of polyorganosiloxane,wherein the sheet has a thermal conductivity of 0.2 W/m·
- K to 5 W/m·
K and a hardness of 5 to 60 (ASKER C), andwhen the sheet has a shape of 38 mm in length, 38 mm in width, and 3 mm in thickness and is interposed between filter papers each having a diameter of 70 mm and kept under a load of 1 kg at 70°
C. for 1 week, a bleed-out amount of a liquid component is 30 mg or less.
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Accused Products
Abstract
A plasma processing apparatus includes a thermally conductive silicone sheet between a mounting table and a focus ring. The thermally conductive silicone sheet has 100 parts by weight to 2000 parts by weight of thermally conductive particles with respect to 100 parts by weight of polyorganosiloxane, and the sheet has a thermal conductivity of 0.2 W/m·K to 5 W/m·K. Further, when the sheet has a shape of 38 mm in length, 38 mm in width, and 3 mm in thickness and is interposed between filter papers each having a diameter of 70 mm and kept under a load of 1 kg at 70° C. for 1 week, a bleed-out amount of a liquid component is 30 mg or less.
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Citations
10 Claims
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1. A thermally conductive silicone sheet for a plasma processing apparatus, having 100 parts by weight to 2000 parts by weight of thermally conductive particles with respect to 100 parts by weight of polyorganosiloxane,
wherein the sheet has a thermal conductivity of 0.2 W/m· - K to 5 W/m·
K and a hardness of 5 to 60 (ASKER C), andwhen the sheet has a shape of 38 mm in length, 38 mm in width, and 3 mm in thickness and is interposed between filter papers each having a diameter of 70 mm and kept under a load of 1 kg at 70°
C. for 1 week, a bleed-out amount of a liquid component is 30 mg or less. - View Dependent Claims (2, 3, 4, 5, 6)
- K to 5 W/m·
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7. A plasma processing apparatus comprising:
- a decompressed accommodation chamber in which a target substrate is accommodated;
a mounting table which is provided within the accommodation chamber to mount thereon the target substrate and has a cooling device; and
an annular focus ring which is mounted on the mounting table to surround a periphery of the target substrate,wherein a thermally conductive silicone sheet is provided between the mounting table and the focus ring, and the thermally conductive silicone sheet has 100 parts by weight to 2000 parts by weight of thermally conductive particles with respect to 100 parts by weight of polyorganosiloxane, and the sheet has a thermal conductivity of 0.2 W/m·
K to 5 W/m·
K and a hardness of 5 to 60 (ASKER C), and when the sheet has a shape of 38 mm in length, 38 mm in width, and 3 mm in thickness, and is interposed between filter papers each having a diameter of 70 mm and kept under a load of 1 kg at 70°
C. for 1 week, a bleed-out amount of a liquid component is 30 mg or less. - View Dependent Claims (8, 9, 10)
- a decompressed accommodation chamber in which a target substrate is accommodated;
Specification