JP2005354055A - 半導体素子の格納電極形成方法 - Google Patents
半導体素子の格納電極形成方法 Download PDFInfo
- Publication number
- JP2005354055A JP2005354055A JP2005164177A JP2005164177A JP2005354055A JP 2005354055 A JP2005354055 A JP 2005354055A JP 2005164177 A JP2005164177 A JP 2005164177A JP 2005164177 A JP2005164177 A JP 2005164177A JP 2005354055 A JP2005354055 A JP 2005354055A
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- Prior art keywords
- storage electrode
- hard mask
- forming
- oxide film
- polysilicon 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.)
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 17
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims abstract description 26
- 229920005591 polysilicon Polymers 0.000 claims abstract description 26
- 230000004888 barrier function Effects 0.000 claims abstract description 15
- 239000000758 substrate Substances 0.000 claims abstract description 6
- 239000007789 gas Substances 0.000 claims description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 229910007991 Si-N Inorganic materials 0.000 claims description 2
- 229910006294 Si—N Inorganic materials 0.000 claims description 2
- 229910006360 Si—O—N Inorganic materials 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 238000000059 patterning Methods 0.000 claims description 2
- 229910018557 Si O Inorganic materials 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 claims 1
- 238000005530 etching Methods 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 229910008045 Si-Si Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910006411 Si—Si Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B99/00—Subject matter not provided for in other groups of this subclass
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/027—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34
- H01L21/033—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising inorganic layers
- H01L21/0332—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising inorganic layers characterised by their composition, e.g. multilayer masks, materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3105—After-treatment
- H01L21/311—Etching the insulating layers by chemical or physical means
- H01L21/31144—Etching the insulating layers by chemical or physical means using masks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L28/00—Passive two-terminal components without a potential-jump or surface barrier for integrated circuits; Details thereof; Multistep manufacturing processes therefor
- H01L28/40—Capacitors
- H01L28/60—Electrodes
- H01L28/82—Electrodes with an enlarged surface, e.g. formed by texturisation
- H01L28/90—Electrodes with an enlarged surface, e.g. formed by texturisation having vertical extensions
- H01L28/92—Electrodes with an enlarged surface, e.g. formed by texturisation having vertical extensions made by patterning layers, e.g. by etching conductive layers
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
- Semiconductor Memories (AREA)
Abstract
【解決手段】 半導体基板100上に犠牲酸化膜120を形成し、犠牲酸化膜上にハードマスク用ポリシリコン層130を形成し、ハードマスク用ポリシリコン層の上部の所定領域を熱処理してバリア層140を形成する。バリア層とハードマスク用ポリシリコン層をマスクにして犠牲酸化膜をパターニングして格納電極領域を形成する。
【選択図】図2
Description
20,120 犠牲酸化膜
30,130 ハードマスク用ポリシリコン層
140 バリア層
Claims (4)
- ストレージノードコンタクトを備えた半導体基板上に犠牲酸化膜を形成する段階と、
前記犠牲酸化膜上にハードマスク用のポリシリコン層を形成する段階と、
窒素を含むガス雰囲気下で熱処理工程を行ない、前記ハードマスク用ポリシリコン層の上部にバリア層を形成する段階と、
前記バリア層、ハードマスク用ポリシリコン層及び犠牲酸化膜をパターニングして格納電極領域を形成する段階と、
前記格納電極領域に格納電極を形成する段階とを含むことを特徴とする半導体素子の格納電極形成方法。 - 前記熱処理工程はNH3,N2O又はNH3+O2混合ガスを用いて600〜850℃の温度下で行なわれることを特徴とする請求項1に記載の半導体素子の格納電極形成方法。
- 前記バリア層は100〜300Åの厚さに形成することを特徴とする請求項1に記載の半導体素子の格納電極形成方法。
- 前記バリア層はSi−O−N,Si−N又はSi−O化合物の格子結合でなることを特徴とする請求項1に記載の半導体素子の格納電極形成方法。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040041805A KR100682191B1 (ko) | 2004-06-08 | 2004-06-08 | 반도체 소자의 저장전극 형성 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005354055A true JP2005354055A (ja) | 2005-12-22 |
JP4680685B2 JP4680685B2 (ja) | 2011-05-11 |
Family
ID=35449533
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005164177A Expired - Fee Related JP4680685B2 (ja) | 2004-06-08 | 2005-06-03 | 半導体素子の格納電極形成方法 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7220641B2 (ja) |
JP (1) | JP4680685B2 (ja) |
KR (1) | KR100682191B1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101944479B1 (ko) | 2012-11-01 | 2019-01-31 | 삼성전자주식회사 | 반도체 장치의 캐패시터 및 캐패시터의 제조 방법 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000228507A (ja) * | 1998-12-24 | 2000-08-15 | Hyundai Electronics Ind Co Ltd | 半導体素子の高誘電体キャパシタ製造方法 |
JP2001257327A (ja) * | 2000-03-10 | 2001-09-21 | Nec Corp | 半導体装置およびその製造方法 |
JP2002334941A (ja) * | 2001-04-26 | 2002-11-22 | Samsung Electronics Co Ltd | キャパシタのストレージ電極を含む半導体装置及びその製造方法 |
JP2003282700A (ja) * | 2002-03-25 | 2003-10-03 | Semiconductor Leading Edge Technologies Inc | ホール形成方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2786071B2 (ja) * | 1993-02-17 | 1998-08-13 | 日本電気株式会社 | 半導体装置の製造方法 |
JP3600326B2 (ja) * | 1994-09-29 | 2004-12-15 | 旺宏電子股▲ふん▼有限公司 | 不揮発性半導体メモリ装置およびその製造方法 |
US5747357A (en) * | 1995-09-27 | 1998-05-05 | Mosel Vitelic, Inc. | Modified poly-buffered isolation |
US5877073A (en) * | 1996-05-07 | 1999-03-02 | Mosel Vitelic, Inc. | Modified poly-buffered locos forming technology avoiding the positive charge trapping at the beak of field oxide |
KR100276389B1 (ko) | 1998-07-03 | 2000-12-15 | 윤종용 | 커패시터 및 그 제조방법 |
KR100465865B1 (ko) * | 2000-06-30 | 2005-01-13 | 주식회사 하이닉스반도체 | 반도체메모리장치의 스토리지노드 전극 제조방법 |
KR100338826B1 (ko) * | 2000-08-28 | 2002-05-31 | 박종섭 | 커패시터의 전하저장전극 형성방법 |
KR100402427B1 (ko) | 2001-12-17 | 2003-10-17 | 주식회사 하이닉스반도체 | 전하저장 전극 형성 방법 |
-
2004
- 2004-06-08 KR KR1020040041805A patent/KR100682191B1/ko not_active IP Right Cessation
-
2005
- 2005-06-03 JP JP2005164177A patent/JP4680685B2/ja not_active Expired - Fee Related
- 2005-06-08 US US11/147,249 patent/US7220641B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000228507A (ja) * | 1998-12-24 | 2000-08-15 | Hyundai Electronics Ind Co Ltd | 半導体素子の高誘電体キャパシタ製造方法 |
JP2001257327A (ja) * | 2000-03-10 | 2001-09-21 | Nec Corp | 半導体装置およびその製造方法 |
JP2002334941A (ja) * | 2001-04-26 | 2002-11-22 | Samsung Electronics Co Ltd | キャパシタのストレージ電極を含む半導体装置及びその製造方法 |
JP2003282700A (ja) * | 2002-03-25 | 2003-10-03 | Semiconductor Leading Edge Technologies Inc | ホール形成方法 |
Also Published As
Publication number | Publication date |
---|---|
US20050272234A1 (en) | 2005-12-08 |
KR100682191B1 (ko) | 2007-02-12 |
KR20050116666A (ko) | 2005-12-13 |
JP4680685B2 (ja) | 2011-05-11 |
US7220641B2 (en) | 2007-05-22 |
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