KR100292012B1 - 실리콘에집적된강유전체커패시터를위한장벽층 - Google Patents
실리콘에집적된강유전체커패시터를위한장벽층 Download PDFInfo
- Publication number
- KR100292012B1 KR100292012B1 KR1019970710022A KR19970710022A KR100292012B1 KR 100292012 B1 KR100292012 B1 KR 100292012B1 KR 1019970710022 A KR1019970710022 A KR 1019970710022A KR 19970710022 A KR19970710022 A KR 19970710022A KR 100292012 B1 KR100292012 B1 KR 100292012B1
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- South Korea
- Prior art keywords
- layer
- perovskite
- ferroelectric
- metal
- silicon
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B12/00—Superconductive or hyperconductive conductors, cables, or transmission lines
-
- 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
- H10D1/692—Electrodes
- H10D1/696—Electrodes comprising multiple layers, e.g. comprising a barrier layer and a metal layer
-
- 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
-
- 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
- H10D84/80—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups H10D12/00 or H10D30/00, e.g. integration of IGFETs
- H10D84/811—Combinations of field-effect devices and one or more diodes, capacitors or resistors
-
- 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
- H10D84/80—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups H10D12/00 or H10D30/00, e.g. integration of IGFETs
- H10D84/811—Combinations of field-effect devices and one or more diodes, capacitors or resistors
- H10D84/813—Combinations of field-effect devices and capacitor only
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- Semiconductor Memories (AREA)
- Non-Volatile Memory (AREA)
Abstract
Description
Claims (18)
- 실리콘 표면을 갖는 기판; 상기 표면에 산소의 이동을 방지하기 위해 상기 기판 표면상에 형성된 전기적으로 전도성을 띤 장벽을 포함하는데, 상기 장벽은,a) 그내부에 금속 산화물 아일랜드를 갖는 금속성 매트릭스를 포함하는 금속성 조성물,b) Ni, Co, Fe 및 Mn으로 이루어진 그룹에서 선택된 제 1 원소 및 Al, Ga, Ti 및 Cr로 이루어진 그룹에서 선택된 제 2 원소를 포함하는 전기적으로 전도성을 띤 금속간 합금을 포함하는 금속성 조성물, 및c) 그내부에 형성된 제 1 금속의 전도성 페로브스카이트를 갖는 제 1 금속의 조성물층을 포함하는 금속성 조성물로 이루어진 그룹에서 선택된 조성물층을 포함하고; 상기 장벽 상에 형성되고 전기적으로 전도성을 띠고, 화학적 템플레이트층을 포함하는 하부 전극; 상기 화학적 템플레이트층 상에 형성되어 템플레이트되는 강유전체층; 및 상기 강유전체 층에 형성된 상부 전극을 포함하는 것을 특징으로 하는 다층 강유전체 셀.
- 제1항에 있어서, 상기 기판이 폴리실리콘을 포함하는 것을 특징으로 하는 강유전체 셀.
- 제1항에 있어서, 상기 화학적 템플레이팅 층이 페로브스카이트를 포함하는 것을 특징으로 하는 강유전체 셀.
- 제3항에 있어서, 상기 페로브스카이트가 3차원 페로브스카이트인 것을 특징으로 하는 강유전체 셀.
- 제1항에 있어서, 상기 금속 산화물이 내화 금속인 것을 특징으로 하는 강유전체 셀.
- 제5항에 있어서, 상기 내화 금속이 티타늄인 것을 특징으로 하는 강유전체 셀.
- 제1항에 있어서, 상기 금속 산화물이 Ru, Ir 또는 Os 로 이루어진 그룹으로부터 선택된 Ⅷ 족 금속인 것을 특징으로 하는 강유전체 셀.
- 제1항에 있어서, 상기 금속성 매트릭스가 귀금속인 것을 특징으로 하는 강유전체 셀.
- 제8항에 있어서, 상기 귀금속이 플라티늄인 것을 특징으로 하는 강유전체 셀.
- 제1항에 있어서, 상기 금속간 합금이 NiAl인 것을 특징으로 하는 강유전체 셀.
- 제1항에 있어서, 상기 금속간 합금층과 상기 하부 전극 페로브스카이트 층 사이에 형성된 플라티늄 층을 더 포함하는 것을 특징으로 하는 강유전체 셀.
- 제1항에 있어서, 상기 제 1 금속이 루테늄 및 이리듐으로 이루어진 그룹으로부터 선택된 것을 특징으로 하는 강유전체 셀.
- 제12항에 있어서, 상기 제 1 금속이 루테늄이고 상기 전도성 페로브스카이트 층은 루테늄, 스트론튬 및 산소인 것을 특징으로 하는 강유전체 셀.
- 전도성 실리콘 표면을 갖는 실리콘 기판; 상기 표면에서 산소의 이동을 방지하기 위해 상기 실리콘 표면상에 형성된 전기적으로 전도성을 띤 장벽을 포함하는데, 상기 장벽은,a) 그내부에 포함된 금속 산화물을 갖는 플라티늄 매트릭스에 의해 겹쳐진 플라티늄을 포함하는 금속성 조성물,b) Ni, Co, Fe 및 Mn으로 이루어진 그룹에서 선택된 제 1 원소 및 Al, Ga, Ti 및 Cr로 이루어진 그룹에서 선택된 제 2 원소를 포함하는 금속간 합금을 포함하는 금속성 조성물.c) Sr, Ru 및 O를 포함하는 금속성 산화물에 의해 중첩된 Ru를 포함하는 금속성 조성물로 이루어진 그룹에서 선택된 조성물 층을 포함하고; 상기 장벽상에 형성된 전도성 3차원 페로브스카이트의 하부 전극; 상기 하부 전극상에 형성된 페로브스카이트의 비전도성 층; 상기 비전도성층 상에 형성된 상기 3차원 페로브스카이트의 상부 전극을 포함하는 것을 특징으로 하는 페로브스카이트 전자 헤테로 구조.
- 제14항에 있어서, 상기 비전도성 층이 강유전체 페로브스카이트인 것을 특징으로 하는 페로브스카이트 전자 헤테로구조.
- 제14항에 있어서, 상기 금속 산화물이 내화 금속인 것을 특징으로 하는 페로브스카이트 전자 헤테로구조.
- 제16항에 있어서, 상기 내화 금속이 Ti인 것을 특징으로 하는 페로브스카이트 전자 헤테로구조.
- 제14항에 있어서, 상기 금속간 합금은 NiAl인 것을 특징으로 하는 페로브스카이트 전자 헤테로구조.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US49745795A | 1995-06-28 | 1995-06-28 | |
| US08/497457 | 1995-06-28 | ||
| US8/497457 | 1995-06-28 | ||
| PCT/US1996/010780 WO1997001854A1 (en) | 1995-06-28 | 1996-06-24 | Barrier layer for ferroelectric capacitor integrated on silicon |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR19990035743A KR19990035743A (ko) | 1999-05-25 |
| KR100292012B1 true KR100292012B1 (ko) | 2001-11-15 |
Family
ID=23976959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019970710022A Expired - Fee Related KR100292012B1 (ko) | 1995-06-28 | 1996-06-24 | 실리콘에집적된강유전체커패시터를위한장벽층 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US5838035A (ko) |
| EP (1) | EP0972309A4 (ko) |
| JP (1) | JP3373525B2 (ko) |
| KR (1) | KR100292012B1 (ko) |
| CA (1) | CA2225681C (ko) |
| IL (1) | IL118756A (ko) |
| TW (1) | TW298649B (ko) |
| WO (1) | WO1997001854A1 (ko) |
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- 1996-06-24 CA CA002225681A patent/CA2225681C/en not_active Expired - Fee Related
- 1996-06-24 KR KR1019970710022A patent/KR100292012B1/ko not_active Expired - Fee Related
- 1996-06-24 JP JP50450097A patent/JP3373525B2/ja not_active Expired - Fee Related
- 1996-06-24 EP EP96923401A patent/EP0972309A4/en not_active Withdrawn
- 1996-06-28 IL IL11875696A patent/IL118756A/xx not_active IP Right Cessation
- 1996-07-04 TW TW085108097A patent/TW298649B/zh active
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| EP0949313A1 (en) * | 1998-04-02 | 1999-10-13 | Technical Fibre Products Limited | Intumescent material |
Also Published As
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| CA2225681A1 (en) | 1997-01-16 |
| EP0972309A1 (en) | 2000-01-19 |
| KR19990035743A (ko) | 1999-05-25 |
| IL118756A (en) | 2000-11-21 |
| CA2225681C (en) | 2001-09-11 |
| US5838035A (en) | 1998-11-17 |
| EP0972309A4 (en) | 2000-01-19 |
| JP3373525B2 (ja) | 2003-02-04 |
| WO1997001854A1 (en) | 1997-01-16 |
| TW298649B (ko) | 1997-02-21 |
| JPH11502376A (ja) | 1999-02-23 |
| IL118756A0 (en) | 1996-10-16 |
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