Invention Grant
- Patent Title: Method for manufacturing wraparound shield write head using hard masks
- Patent Title (中): 使用硬掩模制造环绕屏蔽写头的方法
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Application No.: US13193520Application Date: 2011-07-28
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Publication No.: US08801943B2Publication Date: 2014-08-12
- Inventor: Shiwen Huang , Fenglin Liu , Qiping Zhong , Kyusik Shin , Yingjian Chen
- Applicant: Shiwen Huang , Fenglin Liu , Qiping Zhong , Kyusik Shin , Yingjian Chen
- Applicant Address: NL Amsterdam
- Assignee: HGST Netherlands B.V.
- Current Assignee: HGST Netherlands B.V.
- Current Assignee Address: NL Amsterdam
- Agency: Billion & Armitage
- Main IPC: B44C1/22
- IPC: B44C1/22

Abstract:
The present disclosure describes a method for manufacturing a full wraparound shield damascene write head through the implementation of a three layered (tri-layered) hard mask. According to an embodiment of the invention, the various layers of hard mask are used for different purposes during the formation of a write head. The wraparound shield head of the present invention exhibits improved physical characteristics that further result in improved performance characteristics. Use of the hard mask layers according to the present invention allows for use of manufacturing processes that can be more closely controlled than those processes used in other processes. For example, smaller dimension lithographic techniques can be used. Also, reliance on certain CMP processes is not necessary where the use of CMP processes is not as well-controlled as deposition or lithographic techniques as is possible using the present invention.
Public/Granted literature
- US20130026131A1 Method For Manufacturing Wraparound Shield Write Head Using Hard Masks Public/Granted day:2013-01-31
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