KR100945791B1 - 상변화 메모리 소자 및 그 제조 방법 - Google Patents
상변화 메모리 소자 및 그 제조 방법 Download PDFInfo
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- KR100945791B1 KR100945791B1 KR1020080021363A KR20080021363A KR100945791B1 KR 100945791 B1 KR100945791 B1 KR 100945791B1 KR 1020080021363 A KR1020080021363 A KR 1020080021363A KR 20080021363 A KR20080021363 A KR 20080021363A KR 100945791 B1 KR100945791 B1 KR 100945791B1
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- South Korea
- Prior art keywords
- diode
- phase change
- memory device
- change memory
- contact hole
- Prior art date
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- 230000008859 change Effects 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000009792 diffusion process Methods 0.000 claims abstract description 29
- 239000002184 metal Substances 0.000 claims abstract description 26
- 229910052751 metal Inorganic materials 0.000 claims abstract description 26
- 229910021332 silicide Inorganic materials 0.000 claims abstract description 23
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 claims abstract description 22
- 230000004888 barrier function Effects 0.000 claims abstract description 18
- 125000006850 spacer group Chemical group 0.000 claims abstract description 12
- 239000010410 layer Substances 0.000 claims description 53
- 238000000034 method Methods 0.000 claims description 25
- 239000012071 phase Substances 0.000 claims description 20
- 239000011229 interlayer Substances 0.000 claims description 18
- 230000008569 process Effects 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 10
- 239000004065 semiconductor Substances 0.000 claims description 6
- 238000000348 solid-phase epitaxy Methods 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims description 6
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 5
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 5
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 4
- 229910020776 SixNy Inorganic materials 0.000 claims description 4
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 4
- 238000000059 patterning Methods 0.000 claims description 3
- 238000005530 etching Methods 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 9
- 229910052760 oxygen Inorganic materials 0.000 abstract description 9
- 239000001301 oxygen Substances 0.000 abstract description 9
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 5
- 239000010936 titanium Substances 0.000 description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005468 ion implantation Methods 0.000 description 2
- 239000012782 phase change material Substances 0.000 description 2
- 238000005240 physical vapour deposition Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 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
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67017—Apparatus for fluid treatment
- H01L21/67063—Apparatus for fluid treatment for etching
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B63/00—Resistance change memory devices, e.g. resistive RAM [ReRAM] devices
- H10B63/20—Resistance change memory devices, e.g. resistive RAM [ReRAM] devices comprising selection components having two electrodes, e.g. diodes
-
- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Semiconductor Memories (AREA)
Abstract
Description
Claims (10)
- 상변화 메모리 소자에 있어서,상부에 금속 실리사이드층을 구비한 다이오드;상기 다이오드 측벽에 형성되며, 질화실리콘(SixNy)계 1차 결합 물질층 또는 탄화실리콘(SixCy)계 1차 결합 물질층으로 구성되는 확산 방지 스페이서; 및상기 금속 실리사이드층 상부에 접촉되는 하부전극 콘택;을 포함하는 상변화 메모리 소자.
- 삭제
- 반도체 기판 상에 층간 절연막을 형성하고 패터닝하여 콘택홀을 형성하는 단계;질화실리콘(SixNy)계 1차 결합 물질 또는 탄화실리콘(SixCy)계 1차 결합 물질을 이용하여 상기 콘택홀 내측벽에 확산 방지 스페이서를 형성하는 단계; 및상기 콘택홀 내에 다이오드를 형성하는 단계;를 포함하는 상변화 메모리 소자 제조 방법.
- 삭제
- 제 3 항에 있어서,상기 확산 방지 스페이서를 형성하는 단계는, 상기 콘택홀을 포함하는 전체 구조 상에 확산 방지막을 형성하는 단계; 및스페이서 식각 공정에 의해 상기 층간 절연막 상부 및 상기 콘택홀 저부의 확산 방지막을 제거하는 단계;를 포함하는 상변화 메모리 소자 제조 방법.
- 제 5 항에 있어서,상기 확산 방지막은, 50~150Å의 두께로 형성하는 것을 특징으로 하는 상변화 메모리 소자 제조 방법.
- 제 3 항에 있어서,상기 콘택홀은, 100~300Å의 구경으로 형성하는 것을 특징으로 하는 상변화 메모리 소자 제조 방법.
- 제 3 항에 있어서,상기 다이오드는, 선택적 에피택셜 성장(Selective Epitaxial Growth; SEG) 공정 또는 고상 에피택시(Solid Phase Epitaxy; SPE) 공정에 의해 형성하는 것을 특징으로 하는 상변화 메모리 소자 제조 방법.
- 반도체 기판 상에, 탄화실리콘(SixCy)계 1차 결합 물질을 이용하여 층간 절연막을 형성하는 단계;상기 층간 절연막을 패터닝하여 콘택홀을 형성하는 단계; 및상기 콘택홀 내에 다이오드를 형성하는 단계;를 포함하는 상변화 메모리 소자 제조 방법.
- 제 9 항에 있어서,상기 다이오드는, 선택적 에피택셜 성장(Selective Epitaxial Growth; SEG) 공정 또는 고상 에피택시(Solid Phase Epitaxy; SPE) 공정에 의해 형성하는 것을 특징으로 하는 상변화 메모리 소자 제조 방법.
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KR1020080021363A KR100945791B1 (ko) | 2008-03-07 | 2008-03-07 | 상변화 메모리 소자 및 그 제조 방법 |
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KR1020080021363A KR100945791B1 (ko) | 2008-03-07 | 2008-03-07 | 상변화 메모리 소자 및 그 제조 방법 |
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KR20090096037A KR20090096037A (ko) | 2009-09-10 |
KR100945791B1 true KR100945791B1 (ko) | 2010-03-08 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8987694B2 (en) | 2012-01-06 | 2015-03-24 | Samsung Electronics Co., Ltd. | Semiconductor devices having a vertical diode and methods of manufacturing the same |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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KR101097440B1 (ko) | 2009-12-16 | 2011-12-23 | 주식회사 하이닉스반도체 | 크로스 패터닝 기법을 이용한 상변화 메모리 장치의 제조방법 |
KR20110106712A (ko) | 2010-03-23 | 2011-09-29 | 삼성전자주식회사 | 상변화 메모리 소자 및 그의 제조방법 |
KR101124300B1 (ko) * | 2010-03-25 | 2012-03-27 | 주식회사 하이닉스반도체 | 상변화 메모리 소자 제조 방법 |
KR101124322B1 (ko) * | 2010-04-12 | 2012-03-27 | 주식회사 하이닉스반도체 | 상변화 메모리 소자 및 그 제조 방법 |
KR102195003B1 (ko) * | 2014-06-18 | 2020-12-24 | 삼성전자주식회사 | 반도체 다이오드, 가변 저항 메모리 장치 및 가변 저항 메모리 장치의 제조 방법 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070105267A1 (en) | 2005-11-10 | 2007-05-10 | Karpov Ilya V | Phase change memory with threshold switch select device |
KR100764056B1 (ko) | 2006-09-14 | 2007-10-08 | 삼성전자주식회사 | 상변화 기억 장치 및 그 제조 방법 |
KR100766504B1 (ko) * | 2006-09-29 | 2007-10-15 | 삼성전자주식회사 | 반도체 소자 및 그 제조 방법 |
KR20090000357A (ko) * | 2007-06-28 | 2009-01-07 | 삼성전자주식회사 | 반도체 소자의 형성 방법 |
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070105267A1 (en) | 2005-11-10 | 2007-05-10 | Karpov Ilya V | Phase change memory with threshold switch select device |
KR100764056B1 (ko) | 2006-09-14 | 2007-10-08 | 삼성전자주식회사 | 상변화 기억 장치 및 그 제조 방법 |
KR100766504B1 (ko) * | 2006-09-29 | 2007-10-15 | 삼성전자주식회사 | 반도체 소자 및 그 제조 방법 |
KR20090000357A (ko) * | 2007-06-28 | 2009-01-07 | 삼성전자주식회사 | 반도체 소자의 형성 방법 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8987694B2 (en) | 2012-01-06 | 2015-03-24 | Samsung Electronics Co., Ltd. | Semiconductor devices having a vertical diode and methods of manufacturing the same |
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