The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 29, 2021
Filed:
Nov. 18, 2019
Applied Materials, Inc., Santa Clara, CA (US);
Sanjeev Baluja, Campbell, CA (US);
Ren-Guan Duan, Fremont, CA (US);
Kalyanjit Ghosh, Pleasanton, CA (US);
Applied Materials, Inc., Santa Clara, CA (US);
Abstract
Embodiments disclosed herein generally relate to a chamber liner for the high temperature processing of substrates in a processing chamber. The processing chamber utilizes an inert bottom purge flow to shield the substrate support from halogen reactants such that the substrate support may be heated to temperatures greater than about 650 degrees Celsius. The chamber liner controls a flow profile such that during deposition the bottom purge flow restricts reactants and by-products from depositing below the substrate support. During a clean process, the bottom purge flow restricts halogen reactants from contacting the substrate support. As such, the chamber liner includes a conical inner surface angled inwardly to direct purge gases around an edge of the substrate support and to reduce deposition under the substrate support and the on the edge.