Invention Grant
US07879671B2 Method for manufacturing a semiconductor device that is less prone to DC failures brought about by unwanted defects on capacitors therein
失效
用于制造半导体器件的方法,该半导体器件不容易发生由其中的电容器的不希望的缺陷引起的直流故障
- Patent Title: Method for manufacturing a semiconductor device that is less prone to DC failures brought about by unwanted defects on capacitors therein
- Patent Title (中): 用于制造半导体器件的方法,该半导体器件不容易发生由其中的电容器的不希望的缺陷引起的直流故障
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Application No.: US12492324Application Date: 2009-06-26
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Publication No.: US07879671B2Publication Date: 2011-02-01
- Inventor: Hyuk Kwon
- Applicant: Hyuk Kwon
- Applicant Address: KR Gyeonggi-do
- Assignee: Hynix Semiconductor Inc.
- Current Assignee: Hynix Semiconductor Inc.
- Current Assignee Address: KR Gyeonggi-do
- Agency: Ladas & Parry LLP
- Priority: KR10-2009-0040738 20090511
- Main IPC: H01L21/8234
- IPC: H01L21/8234

Abstract:
A method for manufacturing a semiconductor device that is less prone to DC failures brought about by unwanted defects on capacitors in the device is presented. Manufacturing defects such as scratches are known to occur when making capacitors and that these defects are thought to be a primary cause of subsequent performance DC failures in the completed semiconductor devices. The method includes the steps of depositing, removing, forming, polishing, etching and forming. A sacrificial layer is exploited to allow a subsequent polishing down step to mechanically remove defects from the capacitors.
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