US2004126625A1PendingUtilityA1

High dielectric strength member

Priority: Dec 27, 2002Filed: Dec 18, 2003Published: Jul 1, 2004
Est. expiryDec 27, 2022(expired)· nominal 20-yr term from priority
C23C 24/04C23C 4/11H02H 1/00H01B 3/12
47
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Claims

Abstract

A sprayed member is obtained by plasma spraying an oxide containing a rare earth element having atomic number 64 to 71 onto a substrate to form a spray coating. The sprayed member exhibits a high dielectric strength without a need for sealing treatment and is useful as dielectric rolls, heating substrates, electrostatic chucks, susceptors and the like.

Claims

exact text as granted — not AI-modified
1 . A high dielectric strength member comprising a substrate and a high dielectric strength coating formed thereon in the form of a sprayed coating of an oxide containing a rare earth element having atomic number 64 to 71.  
     
     
         2 . The high dielectric strength member of  claim 1  wherein the sprayed coating has not been subjected to sealing treatment.

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