JP4053070B2 - 半導体素子のキャパシタ製造方法 - Google Patents
半導体素子のキャパシタ製造方法 Download PDFInfo
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- JP4053070B2 JP4053070B2 JP2006310106A JP2006310106A JP4053070B2 JP 4053070 B2 JP4053070 B2 JP 4053070B2 JP 2006310106 A JP2006310106 A JP 2006310106A JP 2006310106 A JP2006310106 A JP 2006310106A JP 4053070 B2 JP4053070 B2 JP 4053070B2
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- 239000003990 capacitor Substances 0.000 title claims description 35
- 239000004065 semiconductor Substances 0.000 title claims description 20
- 238000004519 manufacturing process Methods 0.000 title claims description 19
- 229910010037 TiAlN Inorganic materials 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 24
- 239000000758 substrate Substances 0.000 claims description 13
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 12
- 238000005530 etching Methods 0.000 claims description 9
- 238000005229 chemical vapour deposition Methods 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 238000004544 sputter deposition Methods 0.000 claims description 6
- 229910003087 TiOx Inorganic materials 0.000 claims description 5
- HLLICFJUWSZHRJ-UHFFFAOYSA-N tioxidazole Chemical compound CCCOC1=CC=C2N=C(NC(=O)OC)SC2=C1 HLLICFJUWSZHRJ-UHFFFAOYSA-N 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 230000003647 oxidation Effects 0.000 claims description 4
- 238000007254 oxidation reaction Methods 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 3
- 238000001020 plasma etching Methods 0.000 claims description 3
- 238000001039 wet etching Methods 0.000 claims description 3
- 238000000151 deposition Methods 0.000 claims description 2
- 239000010408 film Substances 0.000 description 108
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 24
- 238000009792 diffusion process Methods 0.000 description 8
- 239000011229 interlayer Substances 0.000 description 8
- 238000000137 annealing Methods 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 238000004151 rapid thermal annealing Methods 0.000 description 4
- 229910010413 TiO 2 Inorganic materials 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910010038 TiAl Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 238000005566 electron beam evaporation Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000000427 thin-film deposition Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 238000005019 vapor deposition process Methods 0.000 description 1
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Classifications
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/04—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body
- H01L27/10—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including a plurality of individual components in a repetitive configuration
-
- 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
- H01L21/28—Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
- H01L21/283—Deposition of conductive or insulating materials for electrodes conducting electric current
- H01L21/285—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation
- H01L21/28506—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers
- H01L21/28512—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic Table
- H01L21/28568—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic Table the conductive layers comprising transition metals
-
- 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
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
-
- 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
- H01L28/55—Capacitors with a dielectric comprising a perovskite structure material
-
- 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
- H01L28/75—Electrodes comprising two or more layers, e.g. comprising a barrier layer and a metal layer
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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)
- Semiconductor Memories (AREA)
- Semiconductor Integrated Circuits (AREA)
- Physical Vapour Deposition (AREA)
Description
Claims (7)
- 半導体素子のキャパシタ製造方法において、
半導体基板上に第1絶縁膜を形成する段階と、
前記第1絶縁膜上にTi膜を蒸着する段階と、
450℃ないし550℃の酸素雰囲気で熱処理工程を行って前記第1絶縁膜の直上にTiOx膜のみを形成する段階と、
前記TiOx膜上に第1導電膜を形成する段階と、
前記第1導電膜上に誘電膜を形成する段階と、
前記誘電膜上に第2導電膜を形成する段階と、
前記第2導電膜上にTiAlN膜(Ti1−xAlxN、x<1)を形成する段階と、
前記TiAlN膜、前記第2導電膜、前記誘電膜および前記第1導電膜を選択的にエッチングして前記キャパシタのパターンを形成する段階と、
前記選択的なエッチングで得られた前記キャパシタのパターンを熱処理する段階と、
前記熱処理したキャパシタのパターン上に第2絶縁膜を形成する段階と、
前記第2絶縁膜を選択的にエッチングして前記TiAlN膜の表面に形成されるAl2O3膜を露出させるための第1コンタクトホールを形成し、前記第1絶縁膜及び前記第2絶縁膜を選択的にエッチングして前記半導体基板の活性領域を露出させるための第2コンタクトホールを形成する段階と、
前記Al2O3膜の露出された部分を除去する段階と、
前記第1及び第2コンタクトホールを通じて前記第2導電膜と前記半導体基板とを電気的に接続する金属配線を形成する段階と、
からなることを特徴とする半導体素子のキャパシタ製造方法。 - 前記第1及び第2導電膜は、それぞれPt膜で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キャパシタ製造方法。
- 前記誘電膜は、SrBi2Ta2O9膜で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キャパシタ製造方法。
- 前記TiAlN膜は、化学気相成長法(CVD)で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キャパシタ製造方法。
- 前記TiAlN膜は、TixAly (0.6 ≦x ≦0.9、0.1 ≦y ≦0.4)のターゲットを利用したスパッタリング法で、3kWないし10kWの電力を印加し、半導体基板の温度は25℃ないし550℃条件下で工程ガスとして1.7×10−7m3/s(10sccm)ないし5.0×10−7m3/s(30sccm)のAr、8.3×10−7m3/s(50sccm)ないし2.5×10−6m3/s(150sccm)のN2を注入して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キャパシタ製造方法。
- 前記Al2O3膜の露出部分は、反応性イオンのエッチングで除去されて、前記TiAlN膜を露出させることを特徴とする請求項1に記載の半導体素子のキャパシタ製造方法。
- 前記露出されたAl2O3膜は、希釈されたHFと緩衝酸化エッチング剤(BOE)とが100:1ないし500:1の比率で混合された溶液を用いたウェットエッチングで除去することを特徴とする請求項1に記載の半導体素子のキャパシタ製造方法。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019980058607A KR100324591B1 (ko) | 1998-12-24 | 1998-12-24 | 티타늄 알루미늄 질소 합금막을 상부전극의 확산방지막으로서 이용하는 캐패시터 제조 방법 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP36535099A Division JP4053703B2 (ja) | 1998-12-24 | 1999-12-22 | キャパシタ製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007059946A JP2007059946A (ja) | 2007-03-08 |
JP4053070B2 true JP4053070B2 (ja) | 2008-02-27 |
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Application Number | Title | Priority Date | Filing Date |
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JP36535099A Expired - Fee Related JP4053703B2 (ja) | 1998-12-24 | 1999-12-22 | キャパシタ製造方法 |
JP2006310106A Expired - Fee Related JP4053070B2 (ja) | 1998-12-24 | 2006-11-16 | 半導体素子のキャパシタ製造方法 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
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JP36535099A Expired - Fee Related JP4053703B2 (ja) | 1998-12-24 | 1999-12-22 | キャパシタ製造方法 |
Country Status (3)
Country | Link |
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US (1) | US6171941B1 (ja) |
JP (2) | JP4053703B2 (ja) |
KR (1) | KR100324591B1 (ja) |
Families Citing this family (14)
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KR100324591B1 (ko) * | 1998-12-24 | 2002-04-17 | 박종섭 | 티타늄 알루미늄 질소 합금막을 상부전극의 확산방지막으로서 이용하는 캐패시터 제조 방법 |
US6590246B1 (en) * | 2000-02-08 | 2003-07-08 | Micron Technology, Inc. | Structures and methods for improved capacitor cells in integrated circuits |
US6358855B1 (en) * | 2000-06-16 | 2002-03-19 | Infineon Technologies Ag | Clean method for recessed conductive barriers |
KR20020010974A (ko) * | 2000-07-31 | 2002-02-07 | 박종섭 | 금속배선 형성 단계를 감소시킬 수 있는 강유전체 메모리소자 제조 방법 |
US6465297B1 (en) * | 2000-10-05 | 2002-10-15 | Motorola, Inc. | Method of manufacturing a semiconductor component having a capacitor |
KR100532409B1 (ko) * | 2001-08-14 | 2005-11-30 | 삼성전자주식회사 | 유전체막과 상부 전극 계면에서의 누설 전류 특성이개선된 반도체 소자의 커패시터 형성 방법 |
KR100442709B1 (ko) * | 2001-09-22 | 2004-08-02 | 학교법인 국민학원 | 이종 질화물의 이중 방지막을 갖는 커패시터 및 그의 전극형성 방법 |
KR100546304B1 (ko) * | 2002-03-29 | 2006-01-26 | 삼성전자주식회사 | 반도체 메모리 소자의 제조방법 |
US6797620B2 (en) | 2002-04-16 | 2004-09-28 | Applied Materials, Inc. | Method and apparatus for improved electroplating fill of an aperture |
KR100870315B1 (ko) * | 2002-07-18 | 2008-11-25 | 매그나칩 반도체 유한회사 | 반도체 소자의 제조방법 |
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KR100753671B1 (ko) * | 2004-12-30 | 2007-08-31 | 매그나칩 반도체 유한회사 | 반도체 소자의 형성 방법 |
JP5154744B2 (ja) * | 2005-07-14 | 2013-02-27 | ルネサスエレクトロニクス株式会社 | 半導体装置およびその製造方法 |
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-
1998
- 1998-12-24 KR KR1019980058607A patent/KR100324591B1/ko not_active IP Right Cessation
-
1999
- 1999-12-13 US US09/460,388 patent/US6171941B1/en not_active Expired - Lifetime
- 1999-12-22 JP JP36535099A patent/JP4053703B2/ja not_active Expired - Fee Related
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2006
- 2006-11-16 JP JP2006310106A patent/JP4053070B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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KR100324591B1 (ko) | 2002-04-17 |
JP2000216352A (ja) | 2000-08-04 |
JP4053703B2 (ja) | 2008-02-27 |
KR20000042442A (ko) | 2000-07-15 |
JP2007059946A (ja) | 2007-03-08 |
US6171941B1 (en) | 2001-01-09 |
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