Invention Grant
- Patent Title: Method for forming ferroelectric spontaneous polarization reversal
- Patent Title (中): 形成铁电自发极化反转的方法
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Application No.: US11083735Application Date: 2005-03-18
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Publication No.: US08193004B2Publication Date: 2012-06-05
- Inventor: Futoshi Yamamoto , Junichiro Ichikawa , Satoshi Oikawa , Sunao Kurimura , Kenji Kitamura
- Applicant: Futoshi Yamamoto , Junichiro Ichikawa , Satoshi Oikawa , Sunao Kurimura , Kenji Kitamura
- Applicant Address: JP Tokyo JP Ibaraki
- Assignee: Sumitomo Osaka Cement Co., Ltd.,National Institute For Materials Science
- Current Assignee: Sumitomo Osaka Cement Co., Ltd.,National Institute For Materials Science
- Current Assignee Address: JP Tokyo JP Ibaraki
- Agency: Chapman and Cutler LLP
- Priority: JP2004-079224 20040318; JP2004-089890 20040325; JP2004-104323 20040331
- Main IPC: H01L21/00
- IPC: H01L21/00
Abstract:
A method for forming a ferroelectric spontaneous polarization reversal in a desired region of a ferroelectric substrate, wherein thickness of the ferroelectric substrate in the desired region A of the ferroelectric substrate is thinner than in a region B outside the desired region of the substrate, comprising the step of applying a given voltage into the ferroelectric substrate by a liquid electrode method to thereby form a ferroelectric spontaneous polarization reversal in the desired region of the ferroelectric substrate.
Public/Granted literature
- US20060079006A1 Method for forming polarization reversal Public/Granted day:2006-04-13
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