JP2006108625A - 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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- JP2006108625A JP2006108625A JP2005155075A JP2005155075A JP2006108625A JP 2006108625 A JP2006108625 A JP 2006108625A JP 2005155075 A JP2005155075 A JP 2005155075A JP 2005155075 A JP2005155075 A JP 2005155075A JP 2006108625 A JP2006108625 A JP 2006108625A
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- 238000000034 method Methods 0.000 title claims abstract description 37
- 239000003990 capacitor Substances 0.000 title claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
- 239000004065 semiconductor Substances 0.000 title claims abstract description 25
- 239000002184 metal Substances 0.000 claims abstract description 33
- 229910052751 metal Inorganic materials 0.000 claims abstract description 33
- 238000005468 ion implantation Methods 0.000 claims abstract description 16
- 238000000137 annealing Methods 0.000 claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims description 31
- 239000000203 mixture Substances 0.000 claims description 10
- 239000012535 impurity Substances 0.000 claims description 9
- 230000003647 oxidation Effects 0.000 claims description 9
- 238000007254 oxidation reaction Methods 0.000 claims description 9
- 239000010936 titanium Substances 0.000 claims description 8
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 6
- VRIVJOXICYMTAG-IYEMJOQQSA-L iron(ii) gluconate Chemical compound [Fe+2].OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O.OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O VRIVJOXICYMTAG-IYEMJOQQSA-L 0.000 claims description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 150000002739 metals Chemical class 0.000 claims description 3
- 229910052715 tantalum Inorganic materials 0.000 claims description 3
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 239000013078 crystal Substances 0.000 abstract description 12
- 238000013500 data storage Methods 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 15
- 238000003860 storage Methods 0.000 description 6
- 238000002425 crystallisation Methods 0.000 description 4
- 230000008025 crystallization Effects 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
- 239000003292 glue Substances 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000510 noble metal Inorganic materials 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000000059 patterning Methods 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910010037 TiAlN Inorganic materials 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 238000001259 photo etching Methods 0.000 description 1
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- 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)
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- 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
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- 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)
- Semiconductor Integrated Circuits (AREA)
Abstract
【解決手段】半導体素子のキャパシタ製造方法において、下部電極としてノーブル系の第1金属膜を形成する段階と、前記第1金属膜の上に強誘電体膜を形成する段階と、前記強誘電体膜が形成された結果物の上に第1熱処理工程を行う段階と、前記第1熱処理工程済みの結果物の全面にイオン注入工程を行う段階と、前記イオン注入工程済みの結果物の全面に第2熱処理工程を行う段階と、前記第2熱処理工程済みの結果物の前記強誘電体膜の上に上部電極としてノーブル系の第2金属層を形成する段階と、前記結果物の全面に第3熱処理工程を行う段階とを含む。
【選択図】図6
Description
24 強誘電体膜
26 上部電極
Claims (7)
- 半導体素子のキャパシタ製造方法において、
第1金属膜を形成する段階と、
前記第1金属膜上に強誘電体膜を形成する段階と、
前記強誘電体膜が形成された結果物上に第1熱処理工程を行う段階と、
前記第1熱処理工程済みの結果物の全面にイオン注入工程を行う段階と、
前記イオン注入工程済みの結果物の全面に第2熱処理工程を行う段階と、
前記第2熱処理工程済みの結果物の前記強誘電体膜の上に第2金属層を形成する段階と、
前記結果物の全面に第3熱処理工程を行う段階とを含む半導体素子のキャパシタ製造方法。 - 前記第1金属層は、Ru膜、Pt膜、Ir膜、IrOx膜、Re膜、Rh膜、TiN膜及びこれらの複合構造のいずれか一つで形成することを特徴とする請求項1記載の半導体素子のキャパシタ製造方法。
- 前記第2金属層は、Ru膜、Pt膜、Ir膜、IrOx膜、Re膜、Rh膜、TiN膜及びこれらの複合構造のいずれか一つで形成することを特徴とする請求項1記載の半導体素子のキャパシタ製造方法。
- 前記強誘電体膜は、50〜2,000Åの厚さに形成し、SBT膜、PZT膜、SBTN膜、BLT膜、不純物入りSBT膜、不純物入りPZT膜、不純物入りSBTN膜、不純物入りSBT膜、組成が変わったSBT膜、組成が変わったPZT膜、組成が変わったSBTN膜、組成が変わったSBT膜のいずれか一つで形成することを特徴とする請求項1記載の半導体素子のキャパシタ製造方法。
- 前記第1熱処理工程は、300℃〜800℃の温度で酸化アニール工程を行うことを特徴とする請求項1記載の半導体素子のキャパシタ製造方法。
- 前記イオン注入工程のソースとしては、チタン(Ti)、タンタル(Ta)に分離可能な金属類を使用することを特徴とする請求項1記載の半導体素子のキャパシタ製造方法。
- 前記第2熱処理工程は、300℃〜1,000℃の高温で酸化アニール工程を行うことを特徴とする請求項1記載の半導体素子のキャパシタ製造方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2004-078296 | 2004-10-01 | ||
KR1020040078296A KR100593141B1 (ko) | 2004-10-01 | 2004-10-01 | 반도체 소자의 커패시터 제조방법 |
Publications (2)
Publication Number | Publication Date |
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JP2006108625A true JP2006108625A (ja) | 2006-04-20 |
JP4917273B2 JP4917273B2 (ja) | 2012-04-18 |
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Application Number | Title | Priority Date | Filing Date |
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JP2005155075A Expired - Fee Related JP4917273B2 (ja) | 2004-10-01 | 2005-05-27 | 半導体素子のキャパシタ製造方法 |
Country Status (4)
Country | Link |
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US (1) | US7300805B2 (ja) |
JP (1) | JP4917273B2 (ja) |
KR (1) | KR100593141B1 (ja) |
TW (1) | TWI318438B (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100760632B1 (ko) * | 2006-03-03 | 2007-09-20 | 삼성전자주식회사 | 커패시터 형성 방법 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02290079A (ja) * | 1989-01-26 | 1990-11-29 | Seiko Epson Corp | 半導体装置の製造方法 |
JP2000216351A (ja) * | 1998-12-30 | 2000-08-04 | Hyundai Electronics Ind Co Ltd | 半導体素子の強誘電体キャパシタ製造方法 |
JP2002280380A (ja) * | 2001-03-19 | 2002-09-27 | Japan Science & Technology Corp | 半導体装置の成膜方法 |
JP2004111789A (ja) * | 2002-09-20 | 2004-04-08 | Sumitomo Metal Mining Co Ltd | 強誘電体キャパシタ及びその製造方法 |
JP2004273808A (ja) * | 2003-03-10 | 2004-09-30 | Seiko Epson Corp | セラミックス膜の製造方法および強誘電体キャパシタの製造方法、ならびにセラミックス膜、強誘電体キャパシタおよび半導体装置 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
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KR940006708B1 (ko) * | 1989-01-26 | 1994-07-25 | 세이꼬 엡슨 가부시끼가이샤 | 반도체 장치의 제조 방법 |
US5728603A (en) * | 1994-11-28 | 1998-03-17 | Northern Telecom Limited | Method of forming a crystalline ferroelectric dielectric material for an integrated circuit |
KR100436054B1 (ko) | 1996-12-30 | 2004-12-04 | 주식회사 하이닉스반도체 | 강유전체캐패시터제조방법 |
KR100292819B1 (ko) * | 1998-07-07 | 2001-09-17 | 윤종용 | 커패시터및그의제조방법 |
-
2004
- 2004-10-01 KR KR1020040078296A patent/KR100593141B1/ko not_active IP Right Cessation
-
2005
- 2005-05-10 US US11/125,916 patent/US7300805B2/en not_active Expired - Fee Related
- 2005-05-16 TW TW094115735A patent/TWI318438B/zh not_active IP Right Cessation
- 2005-05-27 JP JP2005155075A patent/JP4917273B2/ja not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02290079A (ja) * | 1989-01-26 | 1990-11-29 | Seiko Epson Corp | 半導体装置の製造方法 |
JP2000216351A (ja) * | 1998-12-30 | 2000-08-04 | Hyundai Electronics Ind Co Ltd | 半導体素子の強誘電体キャパシタ製造方法 |
JP2002280380A (ja) * | 2001-03-19 | 2002-09-27 | Japan Science & Technology Corp | 半導体装置の成膜方法 |
JP2004111789A (ja) * | 2002-09-20 | 2004-04-08 | Sumitomo Metal Mining Co Ltd | 強誘電体キャパシタ及びその製造方法 |
JP2004273808A (ja) * | 2003-03-10 | 2004-09-30 | Seiko Epson Corp | セラミックス膜の製造方法および強誘電体キャパシタの製造方法、ならびにセラミックス膜、強誘電体キャパシタおよび半導体装置 |
Also Published As
Publication number | Publication date |
---|---|
TWI318438B (en) | 2009-12-11 |
TW200620563A (en) | 2006-06-16 |
US20060073615A1 (en) | 2006-04-06 |
JP4917273B2 (ja) | 2012-04-18 |
US7300805B2 (en) | 2007-11-27 |
KR20060029381A (ko) | 2006-04-06 |
KR100593141B1 (ko) | 2006-06-26 |
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