Invention Grant
- Patent Title: Magnetic device with different planarization areas
- Patent Title (中): 具有不同平面化区域的磁性装置
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Application No.: US13618691Application Date: 2012-09-14
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Publication No.: US08946835B2Publication Date: 2015-02-03
- Inventor: Yuan Xu , Wei Hu , Justin Jia-Jen Hwu , Gene Gauzner , Koichi Wago , David Shiao-Min Kuo
- Applicant: Yuan Xu , Wei Hu , Justin Jia-Jen Hwu , Gene Gauzner , Koichi Wago , David Shiao-Min Kuo
- Applicant Address: US CA Cupertino
- Assignee: Seagate Technology LLC
- Current Assignee: Seagate Technology LLC
- Current Assignee Address: US CA Cupertino
- Agency: Westman, Champlin & Koehler, P.A.
- Main IPC: H01L29/82
- IPC: H01L29/82

Abstract:
A planarization process may planarize a media disk that has data trenches between data features and larger servo trenches between servo features. A filler material layer is deposited on the media disk and provides step coverage of the trenches. The filler material has data recesses over the data trenches and servo recesses over the servo trenches that must be removed to produce a planar media surface. A first planarization process is used to remove the data recesses and a second planarization process is used to remove the servo recesses.
Public/Granted literature
- US20130070370A1 Planarization Method for Media Public/Granted day:2013-03-21
Information query
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