Thermally matched support ring for substrate processing chamber

Details Thermally matched support ring for substrate processing chamber Thermally matched support ring for substrate processing chamber

2005-05-03

2005-05-03

Fuqua, Shawntina (Department: 3742)

Electric heating

Heating devices

Combined with container, enclosure, or support for material...

C219S405000, C219S411000, C392S416000, C392S418000, C118S724000, C118S725000, C118S050100

Reexamination Certificate

active

06888104

ABSTRACT:
A substrate support ring has a band having an inner perimeter that at least partially surrounds a periphery of the substrate. The band has a radiation absorption surface. A lip extends radially inwardly from the inner perimeter of the band to support the substrate. The band and lip can be formed from silicon carbide, and the radiation absorption surface can be an oxidized layer of silicon carbide. In one version, the band and lip have a combined thermal mass Tm, and the radiation absorption surface has an absorptivity A and a surface area Sa, such that the ratio (A×Sa)/Tmis from about 4×10−5m2K/J to about 9×10−4m2K/J.

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