JP5083207B2 - 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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- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
- 229910002367 SrTiO Inorganic materials 0.000 description 1
- 229910004166 TaN Inorganic materials 0.000 description 1
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
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- HTXDPTMKBJXEOW-UHFFFAOYSA-N dioxoiridium Chemical compound O=[Ir]=O HTXDPTMKBJXEOW-UHFFFAOYSA-N 0.000 description 1
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- 238000011049 filling Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- 229910000457 iridium oxide Inorganic materials 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- HFGPZNIAWCZYJU-UHFFFAOYSA-N lead zirconate titanate Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Zr+4].[Pb+2] HFGPZNIAWCZYJU-UHFFFAOYSA-N 0.000 description 1
- 229910052762 osmium Inorganic materials 0.000 description 1
- SYQBFIAQOQZEGI-UHFFFAOYSA-N osmium atom Chemical compound [Os] SYQBFIAQOQZEGI-UHFFFAOYSA-N 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- VSZWPYCFIRKVQL-UHFFFAOYSA-N selanylidenegallium;selenium Chemical compound [Se].[Se]=[Ga].[Se]=[Ga] VSZWPYCFIRKVQL-UHFFFAOYSA-N 0.000 description 1
- 150000003376 silicon Chemical class 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
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- 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
-
- 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
- H01L27/105—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 including field-effect components
-
- 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
- H01L28/65—Electrodes comprising a noble metal or a noble metal oxide, e.g. platinum (Pt), ruthenium (Ru), ruthenium dioxide (RuO2), iridium (Ir), iridium dioxide (IrO2)
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B53/00—Ferroelectric RAM [FeRAM] devices comprising ferroelectric memory capacitors
- H10B53/30—Ferroelectric RAM [FeRAM] devices comprising ferroelectric memory capacitors characterised by the memory core region
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Semiconductor Memories (AREA)
Description
本発明者は、強誘電体キャパシタの強誘電体膜の配向が不均一となる原因を究明すべく検討を重ねた結果、その下方に形成される下部電極の配向が不均一となっていることに起因するということを見出した。そして、本発明者は、更に、この下部電極の配向が不均一となる原因として、その下方に形成される導電性プラグに影響されるということを見出した。
本発明では、図1に示すように、強誘電体キャパシタの下部電極30と、導電性プラグ10との間に、導電性プラグ10の結晶性等の影響を遮断し、下部電極30の配向を保護する保護膜20を形成する。この保護膜20は、導電性酸化物、導電性窒化物及び導電性酸窒化物のうちの少なくともいずれか1種からなる自己配向した膜として形成される。ここで、「自己配向した膜」とは、接触している膜の影響を受けずに、自身の特性に基づき配向した膜である。
まず、導電性プラグ10の上方に、導電性酸化物、導電性窒化物及び導電性酸窒化物のうちの少なくともいずれか1種からなるアモルファス膜を形成する。次いで、このアモルファス膜の上方に下部電極30となる下部電極膜が形成された後、熱処理を施して当該アモルファス膜の結晶化を行うことによって、自己配向し結晶方位が揃った保護膜20が形成される。このように、導電性プラグ10の上方にアモルファス膜を形成することにより、導電性プラグ10の結晶性に依存しない保護膜20が形成される。
以下、本発明の実施形態について説明する。但し、ここでは、便宜上、強誘電体メモリの各メモリセルの断面構造については、その製造方法と共に説明する。
まず、図2Aに示すように、半導体基板61に素子分離構造62と、例えばpウェル91を形成し、更に、半導体基板61上に、MOSFET101、102を形成するとともに、各MOSFETを覆う例えばSiON膜(シリコン酸窒化膜)67を形成する。
(Shallow Trench Isolation)法による素子分離構造62を形成し、素子形成領域を画定する。なお、本実施形態では、STI法により素子分離構造を形成するようにしているが、例えば、LOCOS(Local Oxidation of Silicon)法により素子分離構造を形成するようにしてもよい。
以下、本発明の実施形態に係る緒変形例について説明する。
以下に示す各変形例について、本発明の実施形態で開示した構成部材等と同様のものについては同符号を付し、また、その構成部材等の製造方法についても本発明の実施形態で開示したものと同様であるため、その詳しい製造方法の説明は省略する。
図10A及び図10Bは、本発明の実施形態の変形例1に係る強誘電体メモリ(半導体装置)の製造方法を示す概略断面図である。
図11A乃至図16Bは、本発明の実施形態の変形例2に係る強誘電体メモリ(半導体装置)の製造方法を示す概略断面図である。
本発明の実施形態に係る強誘電体メモリの効果を確認するため、強誘電体膜の結晶性の評価を行った。この際、以下に示す比較例に係る強誘電体メモリと比較して、強誘電体膜の結晶性の評価を行った。
Claims (3)
- 半導体基板の上方に絶縁膜を形成する工程と、
前記絶縁膜に開口部を形成する工程と、
前記開口部に、上面が前記絶縁膜の上面より低い導電性プラグを形成する工程と、
少なくとも前記導電性プラグ上に、上面が前記絶縁膜の上面の高さ以上の高さであって且つ平坦化された導電膜を形成する工程と、
前記導電膜の上方に、下部電極と、前記下部電極上のキャパシタ膜と、前記キャパシタ膜上の上部電極とを有するキャパシタを形成する工程と
を有し、
前記キャパシタを形成する工程は、前記導電膜と前記下部電極との間に、保護膜を形成する工程を含み、
前記保護膜を形成する工程は、
前記導電膜の上方に、導電性酸化物、導電性窒化物及び導電性酸窒化物のうちの少なくともいずれか1種からなるアモルファス膜を形成する工程と、
前記アモルファス膜の上方に前記下部電極となる下部電極膜が形成された後、熱処理を行って、前記アモルファス膜の少なくとも一部を結晶化して自己配向させる工程と
を有することを特徴とする半導体装置の製造方法。 - 前記保護膜を形成する工程は、前記アモルファス膜を形成した後、当該アモルファス膜の上面を、窒素を含有するガスの雰囲気中でプラズマ処理する工程を更に有することを特徴とする請求項1に記載の半導体装置の製造方法。
- 前記保護膜は、PtOx、IrOx、RuOx、PdOx、TiN、TiAlN、TiAlON、TaN及びTaAlNのうち、少なくともいずれか1種を含む膜であり、
各xは、それぞれ1<x≦2を満たすものであることを特徴とする請求項1に記載の半導体装置の製造方法。
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Application Number | Priority Date | Filing Date | Title |
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PCT/JP2006/306679 WO2007116445A1 (ja) | 2006-03-30 | 2006-03-30 | 半導体装置及びその製造方法 |
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JPWO2007116445A1 JPWO2007116445A1 (ja) | 2009-08-20 |
JP5083207B2 true JP5083207B2 (ja) | 2012-11-28 |
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Country | Link |
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US (2) | US20090026514A1 (ja) |
JP (1) | JP5083207B2 (ja) |
KR (1) | KR101025189B1 (ja) |
WO (1) | WO2007116445A1 (ja) |
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JP5061902B2 (ja) * | 2005-09-01 | 2012-10-31 | 富士通セミコンダクター株式会社 | 強誘電体メモリ装置およびその製造方法、半導体装置の製造方法 |
JP4320679B2 (ja) * | 2007-02-19 | 2009-08-26 | セイコーエプソン株式会社 | 強誘電体メモリ装置の製造方法 |
JP5272432B2 (ja) * | 2008-02-15 | 2013-08-28 | 富士通セミコンダクター株式会社 | 半導体装置の製造方法 |
US8796044B2 (en) * | 2012-09-27 | 2014-08-05 | International Business Machines Corporation | Ferroelectric random access memory with optimized hardmask |
KR20140048654A (ko) | 2012-10-16 | 2014-04-24 | 삼성전자주식회사 | 반도체 소자 |
JP6013901B2 (ja) * | 2012-12-20 | 2016-10-25 | 東京エレクトロン株式会社 | Cu配線の形成方法 |
US9548348B2 (en) * | 2013-06-27 | 2017-01-17 | Cypress Semiconductor Corporation | Methods of fabricating an F-RAM |
US9123563B2 (en) * | 2014-01-17 | 2015-09-01 | Taiwan Semiconductor Manufacturing Company Limited | Method of forming contact structure of gate structure |
US10282108B2 (en) * | 2016-08-31 | 2019-05-07 | Micron Technology, Inc. | Hybrid memory device using different types of capacitors |
US11430861B2 (en) | 2019-12-27 | 2022-08-30 | Kepler Computing Inc. | Ferroelectric capacitor and method of patterning such |
US11832451B1 (en) | 2021-08-06 | 2023-11-28 | Kepler Computing Inc. | High density ferroelectric random access memory (FeRAM) devices and methods of fabrication |
US11942133B2 (en) | 2021-09-02 | 2024-03-26 | Kepler Computing Inc. | Pedestal-based pocket integration process for embedded memory |
US12069866B2 (en) | 2021-09-02 | 2024-08-20 | Kepler Computing Inc. | Pocket integration process for embedded memory |
US12108608B1 (en) | 2021-10-01 | 2024-10-01 | Kepler Computing Inc. | Memory devices with dual encapsulation layers and methods of fabrication |
US11961877B1 (en) | 2021-12-14 | 2024-04-16 | Kepler Computing Inc. | Dual hydrogen barrier layer for trench capacitors integrated with low density film for logic structures |
US11869928B2 (en) | 2021-12-14 | 2024-01-09 | Kepler Computing Inc. | Dual hydrogen barrier layer for memory devices |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000223662A (ja) * | 1999-02-01 | 2000-08-11 | Oki Electric Ind Co Ltd | 強誘電体キャパシタおよびその製造方法 |
JP2002151656A (ja) * | 2000-11-14 | 2002-05-24 | Toshiba Corp | 半導体装置及びその製造方法 |
JP2003092391A (ja) * | 2001-07-13 | 2003-03-28 | Fujitsu Ltd | 容量素子及びその製造方法 |
JP2004153031A (ja) * | 2002-10-30 | 2004-05-27 | Fujitsu Ltd | 半導体装置の製造方法 |
JP2006066515A (ja) * | 2004-08-25 | 2006-03-09 | Seiko Epson Corp | 強誘電体メモリ及びその製造方法 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3873341A (en) * | 1972-12-26 | 1975-03-25 | Material Sciences Corp | Rapid conversion of an iron oxide film |
JP2000091539A (ja) * | 1998-07-16 | 2000-03-31 | Fujitsu Ltd | 半導体装置及びその製造方法 |
US6492241B1 (en) * | 2000-04-10 | 2002-12-10 | Micron Technology, Inc. | Integrated capacitors fabricated with conductive metal oxides |
KR100449949B1 (ko) * | 2002-04-26 | 2004-09-30 | 주식회사 하이닉스반도체 | 강유전체 메모리 소자의 캐패시터 제조방법 |
JP3931113B2 (ja) * | 2002-06-10 | 2007-06-13 | 松下電器産業株式会社 | 半導体装置及びその製造方法 |
US7473949B2 (en) * | 2002-12-10 | 2009-01-06 | Fujitsu Limited | Ferroelectric capacitor and method of manufacturing the same |
JP2004288696A (ja) * | 2003-03-19 | 2004-10-14 | Fujitsu Ltd | 半導体装置の製造方法 |
CN100377357C (zh) * | 2003-10-22 | 2008-03-26 | 松下电器产业株式会社 | 半导体装置及其制造方法 |
US7220600B2 (en) * | 2004-12-17 | 2007-05-22 | Texas Instruments Incorporated | Ferroelectric capacitor stack etch cleaning methods |
JP2007115972A (ja) * | 2005-10-21 | 2007-05-10 | Fujitsu Ltd | 半導体装置とその製造方法 |
-
2006
- 2006-03-30 KR KR1020087022228A patent/KR101025189B1/ko active IP Right Grant
- 2006-03-30 JP JP2008509597A patent/JP5083207B2/ja not_active Expired - Fee Related
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- 2013-09-30 US US14/041,783 patent/US20140030824A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000223662A (ja) * | 1999-02-01 | 2000-08-11 | Oki Electric Ind Co Ltd | 強誘電体キャパシタおよびその製造方法 |
JP2002151656A (ja) * | 2000-11-14 | 2002-05-24 | Toshiba Corp | 半導体装置及びその製造方法 |
JP2003092391A (ja) * | 2001-07-13 | 2003-03-28 | Fujitsu Ltd | 容量素子及びその製造方法 |
JP2004153031A (ja) * | 2002-10-30 | 2004-05-27 | Fujitsu Ltd | 半導体装置の製造方法 |
JP2006066515A (ja) * | 2004-08-25 | 2006-03-09 | Seiko Epson Corp | 強誘電体メモリ及びその製造方法 |
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KR101025189B1 (ko) | 2011-03-31 |
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