CN1204599C - 下电极的制造方法 - Google Patents
下电极的制造方法 Download PDFInfo
- Publication number
- CN1204599C CN1204599C CNB021220042A CN02122004A CN1204599C CN 1204599 C CN1204599 C CN 1204599C CN B021220042 A CNB021220042 A CN B021220042A CN 02122004 A CN02122004 A CN 02122004A CN 1204599 C CN1204599 C CN 1204599C
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- Prior art keywords
- bottom electrode
- manufacture method
- layer
- silicon oxide
- conductive layer
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Abstract
Description
蚀刻剂的种类 | 氧化硅的蚀刻率 | 氧化硅/复晶硅的蚀刻选择比 | 氧化硅/氮化硅的蚀刻选择比 | |
本发明 | BOE(10∶1的HF/NH4F) | 670A/min(thermal Oxide) | 120 | 74 |
已知技术 | DHF(50∶1的HF/H2O) | 55A/min(thermalOxide) | 26 | 3 |
Claims (16)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB021220042A CN1204599C (zh) | 2002-05-28 | 2002-05-28 | 下电极的制造方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB021220042A CN1204599C (zh) | 2002-05-28 | 2002-05-28 | 下电极的制造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1463029A CN1463029A (zh) | 2003-12-24 |
CN1204599C true CN1204599C (zh) | 2005-06-01 |
Family
ID=29743117
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CNB021220042A Expired - Lifetime CN1204599C (zh) | 2002-05-28 | 2002-05-28 | 下电极的制造方法 |
Country Status (1)
Country | Link |
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CN (1) | CN1204599C (zh) |
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2002
- 2002-05-28 CN CNB021220042A patent/CN1204599C/zh not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
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CN1463029A (zh) | 2003-12-24 |
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Legal Events
Date | Code | Title | Description |
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C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: SEMICONDUCTOR MANUFACTURING INTERNATIONAL (BEIJING Effective date: 20111129 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20111129 Address after: 201203 No. 18 Zhangjiang Road, Shanghai Co-patentee after: Semiconductor Manufacturing International (Beijing) Corporation Patentee after: Semiconductor Manufacturing International (Shanghai) Corporation Address before: 201203 No. 18 Zhangjiang Road, Shanghai Patentee before: Semiconductor Manufacturing International (Shanghai) Corporation |
|
CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20050601 |