Semiconductor processing apparatus comprising a solid solution ceramic formed from yttrium oxide, zirconium oxide, and aluminum oxide

US9051219B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9051219-B2
Application numberUS-201313986040-A
CountryUS
Kind codeB2
Filing dateMar 25, 2013
Priority dateApr 27, 2007
Publication dateJun 9, 2015
Grant dateJun 9, 2015

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Abstract

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A solid solution-comprising ceramic article useful in semiconductor processing, which is resistant to erosion by halogen-containing plasmas. The solid solution-comprising ceramic article is formed from a combination of yttrium oxide, zirconium oxide, and aluminum oxide. In a first embodiment, the solid solution-comprising ceramic article is a solid, sintered body of the solid solution ceramic material. In a second embodiment, the solid solution-comprising article comprises a substrate underlying a solid solution-comprising coating.

First claim

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We claim: 1. A semiconductor processing apparatus component which is resistant to erosion by halogen containing plasmas used in semiconductor processing, said apparatus component comprising: a substrate having a ceramic coating on at least one surface, said ceramic coating comprising a solid solution which is formed from a combination of yttrium oxide, zirconium oxide, and aluminum oxide, wherein said coating is formed from yttrium oxide at a concentration ranging from about 71.4%…

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What does patent US9051219B2 cover?
A solid solution-comprising ceramic article useful in semiconductor processing, which is resistant to erosion by halogen-containing plasmas. The solid solution-comprising ceramic article is formed from a combination of yttrium oxide, zirconium oxide, and aluminum oxide. In a first embodiment, the solid solution-comprising ceramic article is a solid, sintered body of the solid solution ceramic m…
Who is the assignee on this patent?
Applied Materials Inc
What technology area does this patent fall under?
Primary CPC classification C04B35/505. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Jun 09 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).