公开(公告)号：US20160379807A1

公开(公告)日：2016-12-29

申请号：US15190722

申请日：2016-06-23

Applicant: SPTS Technologies Limited

Inventor： ANTHONY PAUL WILBY ,  STEPHEN R. BURGESS ,  IAN MONCRIEFF ,  PAUL DENSLEY ,  CLIVE L. WIDDICKS ,  PAUL RICH ,  ADRIAN THOMAS

IPC: H01J37/32 ,  C23C14/34 ,  H01L21/67

CPC classification number: H01J37/32495 ,  C23C14/34 ,  H01J37/321 ,  H01J37/32642 ,  H01J37/32715 ,  H01J2237/334 ,  H01L21/67069

Abstract: An ICP plasma etching apparatus for etching a substrate includes at least one chamber, a substrate support positioned within the chamber, a plasma production device for producing a plasma for use in etching the substrate, and a protective structure which surrounds the substrate support so that, in use, a peripheral portion of the substrate is protected from unwanted deposition of material. The protective structure is arranged to be electrically biased and is formed from a metallic material so that metallic material can be sputtered from the protective structure onto an interior surface of the chamber to adhere particulate material to the interior surface.

Abstract translation: 用于蚀刻衬底的ICP等离子体蚀刻装置包括至少一个室，位于室内的衬底支撑件，用于产生用于蚀刻衬底的等离子体的等离子体生成装置，以及围绕衬底支撑件的保护结构， 在使用中，保护基板的周边部分免于材料的不希望的沉积。 保护结构被布置成电偏压并且由金属材料形成，使得金属材料可以从保护结构溅射到室的内表面上，以将颗粒材料粘附到内表面。

公开(公告)号：US20200090913A1

公开(公告)日：2020-03-19

申请号：US16541635

申请日：2019-08-15

Applicant: SPTS Technologies Limited

Inventor： TONY WILBY ,  STEVE BURGESS ,  ADRIAN THOMAS ,  RHONDA HYNDMAN ,  SCOTT HAYMORE ,  VLIVE WIDDICKS ,  IAN MONCRIEFF

IPC: H01J37/34 ,  C23C14/35 ,  C23C14/54

Abstract: A magnet assembly is disclosed for steering ions used in the formation of a material layer upon a substrate during a pulsed DC physical vapour deposition process. Apparatus and methods are also disclosed incorporating the assembly for controlling thickness variation in a material layer formed via pulsed DC physical vapour deposition. The magnet assembly comprises a magnetic field generating arrangement for generating a magnetic field proximate the substrate and means for rotating the ion steering magnetic field generating arrangement about an axis of rotation, relative to the substrate. The magnetic field generating arrangement comprises a plurality of magnets configured to an array which extends around the axis of rotation, wherein the array of magnets are configured to generate a varying magnetic field strength along a radial direction relative to the axis of rotation.