JP4543378B2 - 半導体装置の製造方法 - Google Patents
半導体装置の製造方法 Download PDFInfo
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- JP4543378B2 JP4543378B2 JP2004330715A JP2004330715A JP4543378B2 JP 4543378 B2 JP4543378 B2 JP 4543378B2 JP 2004330715 A JP2004330715 A JP 2004330715A JP 2004330715 A JP2004330715 A JP 2004330715A JP 4543378 B2 JP4543378 B2 JP 4543378B2
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- semiconductor device
- insulating film
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- aluminum oxide
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- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02112—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer
- H01L21/02172—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing at least one metal element, e.g. metal oxides, metal nitrides, metal oxynitrides or metal carbides
- H01L21/02175—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing at least one metal element, e.g. metal oxides, metal nitrides, metal oxynitrides or metal carbides characterised by the metal
- H01L21/02181—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing at least one metal element, e.g. metal oxides, metal nitrides, metal oxynitrides or metal carbides characterised by the metal the material containing hafnium, e.g. HfO2
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- 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
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02112—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer
- H01L21/02172—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing at least one metal element, e.g. metal oxides, metal nitrides, metal oxynitrides or metal carbides
- H01L21/02175—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing at least one metal element, e.g. metal oxides, metal nitrides, metal oxynitrides or metal carbides characterised by the metal
- H01L21/02178—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing at least one metal element, e.g. metal oxides, metal nitrides, metal oxynitrides or metal carbides characterised by the metal the material containing aluminium, e.g. Al2O3
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- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/022—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates the layer being a laminate, i.e. composed of sublayers, e.g. stacks of alternating high-k metal oxides
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- 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
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02225—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer
- H01L21/0226—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process
- H01L21/02263—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase
- H01L21/02271—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition
- H01L21/0228—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition deposition by cyclic CVD, e.g. ALD, ALE, pulsed CVD
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- H01—ELECTRIC ELEMENTS
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- 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 at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System 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
- H01L21/314—Inorganic layers
- H01L21/3141—Deposition using atomic layer deposition techniques [ALD]
- H01L21/3142—Deposition using atomic layer deposition techniques [ALD] of nano-laminates, e.g. alternating layers of Al203-Hf02
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- H01—ELECTRIC ELEMENTS
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- 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 at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System 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
- H01L21/314—Inorganic layers
- H01L21/316—Inorganic layers composed of oxides or glassy oxides or oxide based glass
- H01L21/31604—Deposition from a gas or vapour
- H01L21/31616—Deposition of Al2O3
- H01L21/3162—Deposition of Al2O3 on a silicon body
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- 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 at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System 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
- H01L21/314—Inorganic layers
- H01L21/316—Inorganic layers composed of oxides or glassy oxides or oxide based glass
- H01L21/31604—Deposition from a gas or vapour
- H01L21/31645—Deposition of Hafnium oxides, e.g. HfO2
-
- 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
Description
前記下部電極及び上部電極が、金属又は金属化合物で構成され、
前記容量絶縁膜が、前記下部電極に接する膜厚が2nm以上で5nm以下の酸化アルミニウム膜を有することを特徴とする。
前記下部電極及び上部電極が、金属又は金属化合物で構成され、
前記容量絶縁膜が第1の酸化アルミニウム膜、酸化ハフニウム膜、及び、第2の酸化アルミニウム膜の3層構造を有することを特徴とする。
金属又は金属化合物から成る下部電極を形成する工程と、
前記下部電極に接する膜厚が2nm以上で5nm以下の酸化アルミニウム膜を含む容量絶縁膜を形成する工程と、
前記容量絶縁膜に接する金属又は金属化合物から成る上部電極を形成する工程と
をこの順に有することを特徴とする。
金属又は金属化合物から成る下部電極を形成する工程と、
前記下部電極上に、第1の酸化アルミニウム膜、酸化ハフニウム膜、及び、第2の酸化アルミニウム膜を順次に成膜して容量絶縁膜を形成する工程と、
前記容量絶縁膜に接する金属又は金属化合物から成る上部電極を形成する工程と
をこの順に有することを特徴とする。
11:N型基板
12:LOCOS
13:チタンシリサイド
14:下部電極
15:容量絶縁膜
16:上部電極
17:酸化アルミニウム
18:酸化ハフニウム
21:酸化アルミニウム
22:酸化ハフニウム
23:酸化アルミニウム
31:N型基板
32:LOCOS
33:下部電極
34:容量絶縁膜
35:上部電極
36:シリコンオキシナイトライド
37:酸化タンタル
41,52:酸化アルミニウム
42:空乏層
51:窒化チタン
61:酸化ハフニウム
100A:メモリアレイ領域
100B:周辺回路領域
101:シリコン基板
102:nウエル
103:第一のpウエル
104:第二のpウエル
105:素子分離領域
106,107:スイッチングトランジスタ
108,112:ドレイン
109:ソース
110:ゲート絶縁膜
111:ゲート電極
113:第一の層間絶縁膜
114:コンタクト孔
115:シリコン
116:チタンシリサイド
117:窒化チタン
118:タングステン
119:窒化タングステン
120:タングステン
121:第二の層間絶縁膜
122:シリコンプラグ
122a:コンタクト孔
123:第三の層間絶縁膜
124:金属シリサイド
125:下部電極
125a:(下部電極の)底部
125b:(下部電極の)筒状部
126:容量絶縁膜膜
127:上部電極
128:第四の層間絶縁膜
129:コンタクトプラグ
129a:コンタクト孔
130:プラグ
130a:コンタクト孔
131:窒化チタン
132:タングステン
133:窒化チタン
134:アルミニウム
135:窒化チタン
136:引出し配線
137:窒化チタン
138:タングステン
139:窒化チタン
140:アルミニウム
141:窒化チタン
142:プラグ
142a:コンタクト孔
143:ビット線コンタクト
144:深孔
145:酸化アルミニウム
146:酸化ハフニウム
200A:メモリアレイ領域
200B:周辺回路領域
201:第二の層間絶縁膜
202:シリコンプラグ
202a:コンタクト孔
203:第三の層間絶縁膜
204:第四の層間絶縁膜
205:深孔
206:ダミー溝
207:チタンシリサイド
208:下部電極
208a:(下部電極の)底部
208b:(下部電極の)筒状部
209:第五の絶縁膜
210:ホトレジスト
211:酸化アルミニウム
212:酸化ハフニウム
213:容量絶縁膜
214:上部電極
215:窒化チタン
241:第一の層間絶縁膜
242:金属シリサイド
243:金属プラグ
244:シリコン基板
245:ゲート電極
Claims (5)
- 半導体基板上にスタック型のキャパシタを形成する工程において、
金属又は金属化合物から成る下部電極を形成する工程と、
前記下部電極上に、第1の酸化アルミニウム膜、酸化ハフニウム膜、及び、第2の酸化アルミニウム膜を順次に成膜して容量絶縁膜を形成する工程と、
前記容量絶縁膜に接する金属又は金属化合物から成る上部電極を形成する工程と、を有し、
前記容量絶縁膜を形成する工程が、前記第1の酸化アルミニウム膜を堆積する工程と、非晶質酸化ハフニウム膜を堆積する工程と、前記第2の酸化アルミニウム膜を堆積する工程と、前記非晶質酸化ハフニウム膜を多結晶化する工程と、を順次に含むことを特徴とする半導体装置の製造方法。 - 半導体基板上にスタック型のキャパシタを形成する工程において、
金属又は金属化合物から成る下部電極を形成する工程と、
前記下部電極上に、第1の酸化アルミニウム膜、酸化ハフニウム膜、及び、第2の酸化アルミニウム膜を順次に成膜して容量絶縁膜を形成する工程と、
前記容量絶縁膜に接する金属又は金属化合物から成る上部電極を形成する工程と、を有し、
前記容量絶縁膜を形成する工程が、前記第1の酸化アルミニウム膜を堆積する工程と、非晶質酸化ハフニウム膜を堆積する工程と、該非晶質酸化ハフニウム膜を多結晶化する工程と、前記第2の酸化アルミニウム膜を堆積する工程と、を順次に含むことを特徴とする半導体装置の製造方法。 - 半導体基板上にスタック型のキャパシタを形成する工程において、
金属又は金属化合物から成る下部電極を形成する工程と、
前記下部電極上に、第1の酸化アルミニウム膜、非晶質酸化ハフニウム膜、及び、第2の酸化アルミニウム膜を順次に成膜して容量絶縁膜を形成する工程と、
前記容量絶縁膜に接する金属又は金属化合物から成る上部電極を形成する工程と、を有し、
前記上部電極を形成する工程が、前記非晶質酸化ハフニウム膜を多結晶化する工程を含むことを特徴とする半導体装置の製造方法。 - 前記第1の酸化アルミニウム膜と第2の酸化アルミニウム膜の膜厚の合計が、2nm以上で5nm以下である、請求項1〜3の何れか一に記載の半導体装置の製造方法。
- 前記酸化ハフニウム膜の膜厚が、3nm以上で6nm以下である、請求項1〜4の何れか一に記載の半導体装置の製造方法。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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JP2004330715A JP4543378B2 (ja) | 2004-11-15 | 2004-11-15 | 半導体装置の製造方法 |
US11/268,558 US20060102983A1 (en) | 2004-11-15 | 2005-11-08 | Semiconductor device having a stacked capacitor |
US12/464,209 US7811895B2 (en) | 2004-11-15 | 2009-05-12 | Method of manufacturing a semiconductor device having a stacked capacitor |
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Application Number | Priority Date | Filing Date | Title |
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JP2004330715A JP4543378B2 (ja) | 2004-11-15 | 2004-11-15 | 半導体装置の製造方法 |
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Publication Number | Publication Date |
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JP2006140405A JP2006140405A (ja) | 2006-06-01 |
JP4543378B2 true JP4543378B2 (ja) | 2010-09-15 |
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JP (1) | JP4543378B2 (ja) |
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US7964514B2 (en) * | 2006-03-02 | 2011-06-21 | Applied Materials, Inc. | Multiple nitrogen plasma treatments for thin SiON dielectrics |
JP2007311610A (ja) * | 2006-05-19 | 2007-11-29 | Elpida Memory Inc | 半導体装置、及び、その製造方法 |
US7416952B2 (en) * | 2006-05-23 | 2008-08-26 | Infineon Technologies Ag | Method for producing a dielectric interlayer and storage capacitor with such a dielectric interlayer |
DE102006024214B4 (de) * | 2006-05-23 | 2010-05-20 | Qimonda Ag | Verfahren zum Herstellen einer dielektrischen Zwischenschicht und Verfahren zum Herstellen eines Speicherkondensators |
KR20080093624A (ko) * | 2007-04-17 | 2008-10-22 | 삼성전자주식회사 | 반도체 소자용 다층 유전막 및 그 제조 방법 |
JP4685147B2 (ja) | 2008-10-14 | 2011-05-18 | エルピーダメモリ株式会社 | 半導体装置の製造方法 |
KR101599724B1 (ko) * | 2009-02-16 | 2016-03-04 | 삼성전자 주식회사 | 반도체 장치 및 그 제조 방법 |
JP2010245374A (ja) * | 2009-04-08 | 2010-10-28 | Elpida Memory Inc | 半導体装置及びその製造方法 |
KR101767107B1 (ko) * | 2011-01-31 | 2017-08-10 | 삼성전자주식회사 | 반도체 장치의 캐패시터 |
US8236645B1 (en) * | 2011-02-07 | 2012-08-07 | GlobalFoundries, Inc. | Integrated circuits having place-efficient capacitors and methods for fabricating the same |
JP5988568B2 (ja) * | 2011-11-14 | 2016-09-07 | Dowaエレクトロニクス株式会社 | 半導体発光素子およびその製造方法 |
US9087853B2 (en) * | 2013-10-25 | 2015-07-21 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Isolation device |
US10930751B2 (en) | 2017-12-15 | 2021-02-23 | Micron Technology, Inc. | Ferroelectric assemblies |
TWI648861B (zh) * | 2018-02-13 | 2019-01-21 | 富創微電子有限公司 | 高壓電容結構及數位隔離裝置 |
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JP2002373945A (ja) * | 2001-06-13 | 2002-12-26 | Nec Corp | 半導体装置およびその製造方法 |
JP2004214602A (ja) * | 2002-12-30 | 2004-07-29 | Hynix Semiconductor Inc | 半導体素子のキャパシタ形成方法 |
JP2004311937A (ja) * | 2002-11-30 | 2004-11-04 | Samsung Electronics Co Ltd | 誘電膜工程を単純化して半導体素子のキャパシタを製造する方法及びその誘電膜を形成する装置 |
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JP2000012796A (ja) | 1998-06-19 | 2000-01-14 | Hitachi Ltd | 半導体装置ならびにその製造方法および製造装置 |
US6664186B1 (en) * | 2000-09-29 | 2003-12-16 | International Business Machines Corporation | Method of film deposition, and fabrication of structures |
US20030096473A1 (en) * | 2001-11-16 | 2003-05-22 | Taiwan Semiconductor Manufacturing Company | Method for making metal capacitors with low leakage currents for mixed-signal devices |
KR100487519B1 (ko) * | 2002-02-05 | 2005-05-03 | 삼성전자주식회사 | 반도체 장치의 커패시터 및 그 제조 방법 |
JP2006120832A (ja) * | 2004-10-21 | 2006-05-11 | Elpida Memory Inc | 半導体装置及びその製造方法 |
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2004
- 2004-11-15 JP JP2004330715A patent/JP4543378B2/ja not_active Expired - Fee Related
-
2005
- 2005-11-08 US US11/268,558 patent/US20060102983A1/en not_active Abandoned
-
2009
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Patent Citations (3)
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JP2002373945A (ja) * | 2001-06-13 | 2002-12-26 | Nec Corp | 半導体装置およびその製造方法 |
JP2004311937A (ja) * | 2002-11-30 | 2004-11-04 | Samsung Electronics Co Ltd | 誘電膜工程を単純化して半導体素子のキャパシタを製造する方法及びその誘電膜を形成する装置 |
JP2004214602A (ja) * | 2002-12-30 | 2004-07-29 | Hynix Semiconductor Inc | 半導体素子のキャパシタ形成方法 |
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US20090221127A1 (en) | 2009-09-03 |
US7811895B2 (en) | 2010-10-12 |
US20060102983A1 (en) | 2006-05-18 |
JP2006140405A (ja) | 2006-06-01 |
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