Invention Grant
- Patent Title: Susceptor for holding a semiconductor wafer having an orientation notch, a method for depositing a layer on a semiconductor wafer, and semiconductor wafer
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Application No.: US15260629Application Date: 2016-09-09
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Publication No.: US09991208B2Publication Date: 2018-06-05
- Inventor: Reinhard Schauer , Christian Hager
- Applicant: SILTRONIC AG
- Applicant Address: DE Munich
- Assignee: SILTRONIC AG
- Current Assignee: SILTRONIC AG
- Current Assignee Address: DE Munich
- Agency: Brooks Kushman P.C.
- Priority: DE102015220924 20151027
- Main IPC: C23C16/00
- IPC: C23C16/00 ; H01L23/544 ; H01L21/02 ; H01L21/68 ; H01L21/687 ; H01L29/16 ; C23C16/24 ; C30B25/12 ; C23C16/458 ; C30B25/20 ; C30B29/06

Abstract:
A semiconductor wafer processing susceptor for holding a wafer having an orientation notch during deposition of a layer on the wafer, having a placement surface for supporting the semiconductor wafer in the rear edge region of the wafer, the placement surface having a stepped outer delimitation, and an indentation of the outer delimitation of the placement surface for placement of the partial region of the edge region of the rear side of the wafer in which the orientation notch is located onto a partial region of the placement surface delimited by the indentation of the outer delimitation of the placement surface. The susceptor is used in a method for depositing a layer on a wafer having an orientation notch, and wafers made of monocrystalline silicon upon which layers are deposited using the susceptor have greater local flatness on both front and rear sides proximate the orientation notch.
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