KR100324589B1 - 반도체 소자의 강유전체 캐패시터 제조방법 - Google Patents
반도체 소자의 강유전체 캐패시터 제조방법 Download PDFInfo
- Publication number
- KR100324589B1 KR100324589B1 KR1019980058554A KR19980058554A KR100324589B1 KR 100324589 B1 KR100324589 B1 KR 100324589B1 KR 1019980058554 A KR1019980058554 A KR 1019980058554A KR 19980058554 A KR19980058554 A KR 19980058554A KR 100324589 B1 KR100324589 B1 KR 100324589B1
- Authority
- KR
- South Korea
- Prior art keywords
- thin film
- sbt
- ferroelectric capacitor
- precursor
- semiconductor device
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000003990 capacitor Substances 0.000 title claims abstract description 18
- 239000004065 semiconductor Substances 0.000 title claims abstract description 10
- 239000010409 thin film Substances 0.000 claims abstract description 57
- 229910052797 bismuth Inorganic materials 0.000 claims abstract description 23
- 239000010408 film Substances 0.000 claims abstract description 17
- 239000013078 crystal Substances 0.000 claims abstract description 16
- 239000002243 precursor Substances 0.000 claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- 238000004528 spin coating Methods 0.000 claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 claims abstract description 11
- 238000010304 firing Methods 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- OBETXYAYXDNJHR-UHFFFAOYSA-N 2-Ethylhexanoic acid Chemical compound CCCCC(CC)C(O)=O OBETXYAYXDNJHR-UHFFFAOYSA-N 0.000 claims description 5
- SHZIWNPUGXLXDT-UHFFFAOYSA-N caproic acid ethyl ester Natural products CCCCCC(=O)OCC SHZIWNPUGXLXDT-UHFFFAOYSA-N 0.000 claims description 5
- 238000000137 annealing Methods 0.000 claims description 2
- 230000003746 surface roughness Effects 0.000 abstract description 7
- 239000003989 dielectric material Substances 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 15
- 239000010410 layer Substances 0.000 description 7
- 229910052697 platinum Inorganic materials 0.000 description 7
- 238000001354 calcination Methods 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910020684 PbZr Inorganic materials 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D84/00—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D1/00—Resistors, capacitors or inductors
- H10D1/60—Capacitors
- H10D1/68—Capacitors having no potential barriers
- H10D1/682—Capacitors having no potential barriers having dielectrics comprising perovskite structures
- H10D1/684—Capacitors having no potential barriers having dielectrics comprising perovskite structures the dielectrics comprising multiple layers, e.g. comprising buffer layers, seed layers or gradient layers
Landscapes
- Semiconductor Memories (AREA)
Abstract
Description
Claims (1)
- (Sr,Bi)Ta2O9박막을 유전체로 사용하는 반도체 소자의 강유전체 캐패시터 제조방법에 있어서,소정의 하부층 상에 하부 전극용 전도막을 형성하는 제1 단계;상기 하부 전극용 전도막 상에 (Sr,Bi)Ta2O9의 제1 전구체로 메탈 2-에틸헥사노이트(metal 2-ethylhexanoate) 용액을 스핀 코팅하는 제2 단계;소성 공정을 실시하는 제3 단계;급속열처리를 실시하여 (Sr,Bi)Ta2O9의 결정핵을 생성하는 제4 단계;퍼니스 열처리를 실시하여 상기 결정핵을 (Sr,Bi)Ta2O9의 결정립으로 성장시켜 제1 (Sr,Bi)Ta2O9박막을 얻는 제5 단계;상기 제1 (Sr,Bi)Ta2O9박막 상에 (Sr,Bi)Ta2O9의 제2 전구체로 상기 제1 전구체보다 몰 농도가 낮은 메탈 2-에틸헥사노이트 용액을 스핀 코팅하는 제6 단계;소성 공정을 실시하는 제7 단계;급속열처리를 실시하여 (Sr,Bi)Ta2O9의 결정핵 상태의 제2 (Sr,Bi)Ta2O9박막을 얻는 제8 단계; 및상기 제2 (Sr,Bi)Ta2O9박막 상에 상부 전극용 전도막을 형성하는 제9 단계를 포함하는 반도체 소자의 강유전체 캐패시터 제조방법.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019980058554A KR100324589B1 (ko) | 1998-12-24 | 1998-12-24 | 반도체 소자의 강유전체 캐패시터 제조방법 |
US09/440,168 US6338970B1 (en) | 1998-12-24 | 1999-11-15 | Ferroelectric capacitor of semiconductor device and method for fabricating the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019980058554A KR100324589B1 (ko) | 1998-12-24 | 1998-12-24 | 반도체 소자의 강유전체 캐패시터 제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20000042389A KR20000042389A (ko) | 2000-07-15 |
KR100324589B1 true KR100324589B1 (ko) | 2002-04-17 |
Family
ID=19565636
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1019980058554A KR100324589B1 (ko) | 1998-12-24 | 1998-12-24 | 반도체 소자의 강유전체 캐패시터 제조방법 |
Country Status (2)
Country | Link |
---|---|
US (1) | US6338970B1 (ko) |
KR (1) | KR100324589B1 (ko) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6777248B1 (en) * | 1997-11-10 | 2004-08-17 | Hitachi, Ltd. | Dielectric element and manufacturing method therefor |
US6943392B2 (en) * | 1999-08-30 | 2005-09-13 | Micron Technology, Inc. | Capacitors having a capacitor dielectric layer comprising a metal oxide having multiple different metals bonded with oxygen |
JP2002170938A (ja) * | 2000-04-28 | 2002-06-14 | Sharp Corp | 半導体装置およびその製造方法 |
US6558517B2 (en) * | 2000-05-26 | 2003-05-06 | Micron Technology, Inc. | Physical vapor deposition methods |
KR100358147B1 (ko) * | 2000-12-30 | 2002-10-25 | 주식회사 하이닉스반도체 | 강유전체 캐패시터 제조 방법 |
US6838122B2 (en) * | 2001-07-13 | 2005-01-04 | Micron Technology, Inc. | Chemical vapor deposition methods of forming barium strontium titanate comprising dielectric layers |
US20030017266A1 (en) * | 2001-07-13 | 2003-01-23 | Cem Basceri | Chemical vapor deposition methods of forming barium strontium titanate comprising dielectric layers, including such layers having a varied concentration of barium and strontium within the layer |
US7011978B2 (en) * | 2001-08-17 | 2006-03-14 | Micron Technology, Inc. | Methods of forming capacitor constructions comprising perovskite-type dielectric materials with different amount of crystallinity regions |
US20050161717A1 (en) * | 2004-01-28 | 2005-07-28 | Fujitsu Limited | Semiconductor device and method of fabricating the same |
WO2005074032A1 (ja) * | 2004-01-28 | 2005-08-11 | Fujitsu Limited | 半導体装置及びその製造方法 |
US7153706B2 (en) * | 2004-04-21 | 2006-12-26 | Texas Instruments Incorporated | Ferroelectric capacitor having a substantially planar dielectric layer and a method of manufacture therefor |
US20060220177A1 (en) * | 2005-03-31 | 2006-10-05 | Palanduz Cengiz A | Reduced porosity high-k thin film mixed grains for thin film capacitor applications |
JP2008124274A (ja) * | 2006-11-13 | 2008-05-29 | Fujitsu Ltd | 半導体装置の製造方法 |
KR102180620B1 (ko) * | 2019-01-24 | 2020-11-18 | 구창영 | 비납계 페로브스카이트 압전 박막 및 그 제조 방법 |
Citations (2)
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JPH08340085A (ja) * | 1995-06-09 | 1996-12-24 | Sharp Corp | 強誘電体薄膜被覆基板、その製造方法、及びキャパシタ構造素子 |
JPH10321809A (ja) * | 1997-05-19 | 1998-12-04 | Sharp Corp | 半導体記憶素子の製造方法 |
Family Cites Families (15)
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US5434102A (en) * | 1991-02-25 | 1995-07-18 | Symetrix Corporation | Process for fabricating layered superlattice materials and making electronic devices including same |
US5423285A (en) * | 1991-02-25 | 1995-06-13 | Olympus Optical Co., Ltd. | Process for fabricating materials for ferroelectric, high dielectric constant, and integrated circuit applications |
JP2779443B2 (ja) | 1991-11-26 | 1998-07-23 | 三菱電機株式会社 | 半導体装置 |
US5426075A (en) | 1994-06-15 | 1995-06-20 | Ramtron International Corporation | Method of manufacturing ferroelectric bismuth layered oxides |
JP3012785B2 (ja) * | 1995-07-14 | 2000-02-28 | 松下電子工業株式会社 | 容量素子 |
JP3258899B2 (ja) * | 1996-03-19 | 2002-02-18 | シャープ株式会社 | 強誘電体薄膜素子、それを用いた半導体装置、及び強誘電体薄膜素子の製造方法 |
KR100190111B1 (ko) | 1996-11-13 | 1999-06-01 | 윤종용 | 반도체장치의 커패시터 제조방법 |
JPH10172298A (ja) | 1996-12-05 | 1998-06-26 | Mitsubishi Electric Corp | 半導体記憶装置 |
JPH10189886A (ja) | 1996-12-26 | 1998-07-21 | Sony Corp | 誘電体キャパシタおよび強誘電体メモリ |
KR100225497B1 (ko) | 1996-12-30 | 1999-10-15 | 오상수 | RE-TM-B 합금을 기초로 하는 영구자석 제조방법(METHOD FOR MANUFACTURING PERMANENT MAGNET BASED ON Re-TM-B ALLOY) |
US5902131A (en) | 1997-05-09 | 1999-05-11 | Ramtron International Corporation | Dual-level metalization method for integrated circuit ferroelectric devices |
US6133051A (en) * | 1998-06-30 | 2000-10-17 | Advanced Technology Materials, Inc. | Amorphously deposited metal oxide ceramic films |
JP3171170B2 (ja) * | 1998-05-25 | 2001-05-28 | 日本電気株式会社 | 薄膜キャパシタおよびその製造方法 |
US6172385B1 (en) * | 1998-10-30 | 2001-01-09 | International Business Machines Corporation | Multilayer ferroelectric capacitor structure |
US6204158B1 (en) * | 1998-12-18 | 2001-03-20 | Advanced Technology Materials, Inc. | Reduced diffusion of a mobile specie from a metal oxide ceramic into the substrate |
-
1998
- 1998-12-24 KR KR1019980058554A patent/KR100324589B1/ko not_active IP Right Cessation
-
1999
- 1999-11-15 US US09/440,168 patent/US6338970B1/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH08340085A (ja) * | 1995-06-09 | 1996-12-24 | Sharp Corp | 強誘電体薄膜被覆基板、その製造方法、及びキャパシタ構造素子 |
JPH10321809A (ja) * | 1997-05-19 | 1998-12-04 | Sharp Corp | 半導体記憶素子の製造方法 |
Also Published As
Publication number | Publication date |
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KR20000042389A (ko) | 2000-07-15 |
US6338970B1 (en) | 2002-01-15 |
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