KR100744273B1 - 상변화 메모리 소자 제조 방법 - Google Patents
상변화 메모리 소자 제조 방법 Download PDFInfo
- Publication number
- KR100744273B1 KR100744273B1 KR1020050131352A KR20050131352A KR100744273B1 KR 100744273 B1 KR100744273 B1 KR 100744273B1 KR 1020050131352 A KR1020050131352 A KR 1020050131352A KR 20050131352 A KR20050131352 A KR 20050131352A KR 100744273 B1 KR100744273 B1 KR 100744273B1
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- South Korea
- Prior art keywords
- metal
- phase change
- insulating film
- change memory
- lower electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 230000008859 change Effects 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 71
- 239000002184 metal Substances 0.000 claims abstract description 71
- 230000004888 barrier function Effects 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 23
- 239000010949 copper Substances 0.000 claims abstract description 11
- 238000000059 patterning Methods 0.000 claims abstract description 10
- 239000004065 semiconductor Substances 0.000 claims abstract description 10
- 238000000151 deposition Methods 0.000 claims abstract description 9
- 239000012782 phase change material Substances 0.000 claims abstract description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052802 copper Inorganic materials 0.000 claims abstract description 6
- 238000005498 polishing Methods 0.000 claims abstract description 6
- 150000004767 nitrides Chemical class 0.000 claims description 7
- 239000000758 substrate Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 2
- 229910052721 tungsten Inorganic materials 0.000 claims description 2
- 239000010937 tungsten Substances 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 20
- 238000005516 engineering process Methods 0.000 abstract description 9
- 150000002739 metals Chemical class 0.000 abstract description 6
- 230000009977 dual effect Effects 0.000 abstract description 5
- 229910000881 Cu alloy Inorganic materials 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 239000012071 phase Substances 0.000 abstract 1
- 239000010408 film Substances 0.000 description 26
- 229920002120 photoresistant polymer Polymers 0.000 description 5
- 230000008021 deposition Effects 0.000 description 3
- 238000005530 etching Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000206 photolithography Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 150000004770 chalcogenides Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000000427 thin-film deposition Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N70/00—Solid-state devices having no potential barriers, and specially adapted for rectifying, amplifying, oscillating or switching
- H10N70/20—Multistable switching devices, e.g. memristors
- H10N70/231—Multistable switching devices, e.g. memristors based on solid-state phase change, e.g. between amorphous and crystalline phases, Ovshinsky effect
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N70/00—Solid-state devices having no potential barriers, and specially adapted for rectifying, amplifying, oscillating or switching
- H10N70/011—Manufacture or treatment of multistable switching devices
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N70/00—Solid-state devices having no potential barriers, and specially adapted for rectifying, amplifying, oscillating or switching
- H10N70/011—Manufacture or treatment of multistable switching devices
- H10N70/061—Shaping switching materials
- H10N70/066—Shaping switching materials by filling of openings, e.g. damascene method
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N70/00—Solid-state devices having no potential barriers, and specially adapted for rectifying, amplifying, oscillating or switching
- H10N70/801—Constructional details of multistable switching devices
- H10N70/821—Device geometry
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N70/00—Solid-state devices having no potential barriers, and specially adapted for rectifying, amplifying, oscillating or switching
- H10N70/801—Constructional details of multistable switching devices
- H10N70/821—Device geometry
- H10N70/826—Device geometry adapted for essentially vertical current flow, e.g. sandwich or pillar type devices
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N70/00—Solid-state devices having no potential barriers, and specially adapted for rectifying, amplifying, oscillating or switching
- H10N70/801—Constructional details of multistable switching devices
- H10N70/881—Switching materials
- H10N70/882—Compounds of sulfur, selenium or tellurium, e.g. chalcogenides
- H10N70/8825—Selenides, e.g. GeSe
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N70/00—Solid-state devices having no potential barriers, and specially adapted for rectifying, amplifying, oscillating or switching
- H10N70/801—Constructional details of multistable switching devices
- H10N70/881—Switching materials
- H10N70/882—Compounds of sulfur, selenium or tellurium, e.g. chalcogenides
- H10N70/8828—Tellurides, e.g. GeSbTe
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Semiconductor Memories (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Abstract
Description
Claims (4)
- 반도체 소자에서 상변화 메모리 소자 제조 방법으로서,반도체 기판상에 절연막을 패터닝하는 과정과,상기 패터닝된 절연막 상에 베리어 메탈 및 금속을 순차적으로 형성하는 과정과,상기 배리어 메탈 상부에 형성된 금속을 CMP(chemical mechanical polishing) 연마하여 절연막 상부의 베리어 메탈을 잔존시키면서 금속을 평탄화하고, 상기 잔존시킨 베리어 메탈을 원하는 상변화 메모리 소자의 하부 전극으로 패터닝하는 과정과,상기 패터닝된 하부 전극 상부에 절연막을 증착하고, 상기 증착된 절연막에 홀을 형성하며, 그 상부에 상변화 재료 및 상부 전극을 순차적으로 형성하여 패터닝하는 과정과,상기 상부 전극 상에 절연막을 증착하고, 상부의 금속 배선과 이를 하부 전극과 연결시키기 위해 비아를 형성하는 과정을 포함하는 상변화 메모리 소자 제조 방법.
- 제 1 항에 있어서,상기 베리어 메탈은, Ti와 Ta의 금속 중 어느 하나인 것을 특징으로 하는 상변화 메모리 소자 제조 방법.
- 제 1 항에 있어서,상기 베리어 메탈은, TiN과 TaN의 금속 질화물 중 어느 하나인 것을 특징으로 하는 상변화 메모리 소자 제조 방법.
- 제 1 항에 있어서,상기 베리어 메탈 상에 형성된 금속은, 구리(Cu)와 알루미늄(Al)과 텅스텐(W) 중 어느 하나인 것을 특징으로 하는 상변화 메모리 소자 제조 방법.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020050131352A KR100744273B1 (ko) | 2005-12-28 | 2005-12-28 | 상변화 메모리 소자 제조 방법 |
US11/646,090 US7838413B2 (en) | 2005-12-28 | 2006-12-26 | Method of manufacturing phase-change memory element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020050131352A KR100744273B1 (ko) | 2005-12-28 | 2005-12-28 | 상변화 메모리 소자 제조 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20070069353A KR20070069353A (ko) | 2007-07-03 |
KR100744273B1 true KR100744273B1 (ko) | 2007-07-30 |
Family
ID=38194373
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020050131352A Expired - Fee Related KR100744273B1 (ko) | 2005-12-28 | 2005-12-28 | 상변화 메모리 소자 제조 방법 |
Country Status (2)
Country | Link |
---|---|
US (1) | US7838413B2 (ko) |
KR (1) | KR100744273B1 (ko) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8765602B2 (en) | 2012-08-30 | 2014-07-01 | International Business Machines Corporation | Doping of copper wiring structures in back end of line processing |
US10468596B2 (en) | 2018-02-21 | 2019-11-05 | Sandisk Technologies Llc | Damascene process for forming three-dimensional cross rail phase change memory devices |
US11817389B2 (en) | 2020-03-24 | 2023-11-14 | International Business Machines Corporation | Multi-metal interconnects for semiconductor device structures |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20030081900A (ko) * | 2002-04-15 | 2003-10-22 | 삼성전자주식회사 | 상변화 메모리 소자의 제조방법 |
KR20050053255A (ko) * | 2003-12-02 | 2005-06-08 | 삼성전자주식회사 | 상변환 기억 소자 및 그 형성 방법 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6001730A (en) * | 1997-10-20 | 1999-12-14 | Motorola, Inc. | Chemical mechanical polishing (CMP) slurry for polishing copper interconnects which use tantalum-based barrier layers |
US6709316B1 (en) * | 2000-10-27 | 2004-03-23 | Applied Materials, Inc. | Method and apparatus for two-step barrier layer polishing |
US6569705B2 (en) * | 2000-12-21 | 2003-05-27 | Intel Corporation | Metal structure for a phase-change memory device |
US6815818B2 (en) * | 2001-11-19 | 2004-11-09 | Micron Technology, Inc. | Electrode structure for use in an integrated circuit |
KR100449949B1 (ko) * | 2002-04-26 | 2004-09-30 | 주식회사 하이닉스반도체 | 강유전체 메모리 소자의 캐패시터 제조방법 |
US7115927B2 (en) * | 2003-02-24 | 2006-10-03 | Samsung Electronics Co., Ltd. | Phase changeable memory devices |
KR100615586B1 (ko) * | 2003-07-23 | 2006-08-25 | 삼성전자주식회사 | 다공성 유전막 내에 국부적인 상전이 영역을 구비하는상전이 메모리 소자 및 그 제조 방법 |
DE60310915D1 (de) * | 2003-08-05 | 2007-02-15 | St Microelectronics Srl | Verfahren zur Herstellung einer Anordnung von Phasenwechselspeichern in Kupfer-Damaszenertechnologie sowie entsprechend hergestellte Anordnungen von Phasenwechselspeichern |
KR100568109B1 (ko) * | 2003-11-24 | 2006-04-05 | 삼성전자주식회사 | 상변화 기억 소자 및 그 형성 방법 |
US7135696B2 (en) * | 2004-09-24 | 2006-11-14 | Intel Corporation | Phase change memory with damascene memory element |
JP2006156886A (ja) * | 2004-12-01 | 2006-06-15 | Renesas Technology Corp | 半導体集積回路装置およびその製造方法 |
US7214958B2 (en) * | 2005-02-10 | 2007-05-08 | Infineon Technologies Ag | Phase change memory cell with high read margin at low power operation |
JP2007042804A (ja) * | 2005-08-02 | 2007-02-15 | Renesas Technology Corp | 半導体装置およびその製造方法 |
TWI264087B (en) * | 2005-12-21 | 2006-10-11 | Ind Tech Res Inst | Phase change memory cell and fabricating method thereof |
-
2005
- 2005-12-28 KR KR1020050131352A patent/KR100744273B1/ko not_active Expired - Fee Related
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2006
- 2006-12-26 US US11/646,090 patent/US7838413B2/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20030081900A (ko) * | 2002-04-15 | 2003-10-22 | 삼성전자주식회사 | 상변화 메모리 소자의 제조방법 |
KR20050053255A (ko) * | 2003-12-02 | 2005-06-08 | 삼성전자주식회사 | 상변환 기억 소자 및 그 형성 방법 |
Also Published As
Publication number | Publication date |
---|---|
US7838413B2 (en) | 2010-11-23 |
KR20070069353A (ko) | 2007-07-03 |
US20070148869A1 (en) | 2007-06-28 |
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