Invention Grant
- Patent Title: Sublayers for magnetically soft underlayer
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Application No.: US12882053Application Date: 2010-09-14
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Publication No.: US09653105B2Publication Date: 2017-05-16
- Inventor: Rajiv Y Ranjan , Jeffrey S Reiter , Thomas P Nolan
- Applicant: Rajiv Y Ranjan , Jeffrey S Reiter , Thomas P Nolan
- Applicant Address: US CA Cupertino
- Assignee: Seagate Technology LLC
- Current Assignee: Seagate Technology LLC
- Current Assignee Address: US CA Cupertino
- Main IPC: G11B5/66
- IPC: G11B5/66 ; G11B5/851 ; C23C14/16 ; C23C14/18 ; C23C14/20 ; C23C14/35 ; C23C14/56

Abstract:
A method of forming a uniform thickness layer of a selected material on a surface of a substrate comprises steps of: (a) providing a multi-stage cathode sputtering apparatus comprising a group of spaced-apart cathode/target assemblies and a means for transporting at least one substrate/workpiece past each cathode/target assembly, each cathode/target assembly comprising a sputtering surface oriented substantially parallel to the first surface of the substrate during transport past the group of cathode/target assemblies, the group of cathode/target assemblies adapted for providing different angular sputtered film thickness profiles; and (b) transporting the substrate past each cathode/target assembly while providing different sputtered film thickness profiles from at least some of the cathode/target assemblies, such that a plurality of sub-layers is deposited on the surface of the substrate/workpiece which collectively form a uniform thickness layer of the selected material.
Public/Granted literature
- US20110223445A1 METHOD & APPARATUS FOR MULTI-STAGE SPUTTER DEPOSITION OF UNIFORM THICKNESS LAYERS Public/Granted day:2011-09-15
Information query
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