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
- Authority
- CN
- China
- Prior art keywords
- bottom electrode
- manufacture method
- layer
- silicon oxide
- conductive layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 claims abstract description 60
- 239000000463 material Substances 0.000 claims abstract description 26
- 239000000758 substrate Substances 0.000 claims abstract description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 43
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 33
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 30
- 238000004140 cleaning Methods 0.000 claims description 11
- 239000011521 glass Substances 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 8
- 239000013078 crystal Substances 0.000 claims description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 5
- 229910052710 silicon Inorganic materials 0.000 claims description 5
- 239000010703 silicon Substances 0.000 claims description 5
- 239000000377 silicon dioxide Substances 0.000 claims description 5
- 239000003990 capacitor Substances 0.000 abstract description 4
- 238000005530 etching Methods 0.000 description 11
- 229910052581 Si3N4 Inorganic materials 0.000 description 6
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 6
- 238000005496 tempering Methods 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 239000002019 doping agent Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000003701 mechanical milling Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000001039 wet etching Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical compound CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
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- Semiconductor Memories (AREA)
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 |
---|---|---|---|
CNB021220042A Expired - Lifetime CN1204599C (zh) | 2002-05-28 | 2002-05-28 | 下电极的制造方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN1204599C (zh) |
-
2002
- 2002-05-28 CN CNB021220042A patent/CN1204599C/zh not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CN1463029A (zh) | 2003-12-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
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 |