KR100889361B1 - 비휘발성 메모리 소자 및 이의 제조 방법 - Google Patents
비휘발성 메모리 소자 및 이의 제조 방법 Download PDFInfo
- Publication number
- KR100889361B1 KR100889361B1 KR1020060100947A KR20060100947A KR100889361B1 KR 100889361 B1 KR100889361 B1 KR 100889361B1 KR 1020060100947 A KR1020060100947 A KR 1020060100947A KR 20060100947 A KR20060100947 A KR 20060100947A KR 100889361 B1 KR100889361 B1 KR 100889361B1
- Authority
- KR
- South Korea
- Prior art keywords
- vertical portion
- charge trap
- memory device
- trap layer
- gate electrode
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 239000000758 substrate Substances 0.000 claims abstract description 41
- 239000004065 semiconductor Substances 0.000 claims abstract description 40
- 238000000034 method Methods 0.000 claims description 28
- 238000005530 etching Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 12
- 239000012535 impurity Substances 0.000 claims description 5
- 229910052710 silicon Inorganic materials 0.000 claims description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 3
- 229920005591 polysilicon Polymers 0.000 claims description 3
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 2
- 239000007772 electrode material Substances 0.000 claims 1
- 238000002347 injection Methods 0.000 abstract description 16
- 239000007924 injection Substances 0.000 abstract description 16
- 230000010354 integration Effects 0.000 abstract description 9
- 239000010410 layer Substances 0.000 description 78
- 238000005229 chemical vapour deposition Methods 0.000 description 5
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229910000449 hafnium oxide Inorganic materials 0.000 description 4
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 4
- 238000000206 photolithography Methods 0.000 description 4
- 238000000231 atomic layer deposition Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 238000005240 physical vapour deposition Methods 0.000 description 3
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 description 2
- 239000002784 hot electron Substances 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000002488 metal-organic chemical vapour deposition Methods 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 229910005540 GaP Inorganic materials 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 229910000673 Indium arsenide Inorganic materials 0.000 description 1
- 229910003811 SiGeC Inorganic materials 0.000 description 1
- 229910000577 Silicon-germanium Inorganic materials 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- RPQDHPTXJYYUPQ-UHFFFAOYSA-N indium arsenide Chemical compound [In]#[As] RPQDHPTXJYYUPQ-UHFFFAOYSA-N 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 229910003465 moissanite Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229910021332 silicide Inorganic materials 0.000 description 1
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Images
Classifications
-
- 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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3105—After-treatment
- H01L21/311—Etching the insulating layers by chemical or physical means
- H01L21/31144—Etching the insulating layers by chemical or physical means using masks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/66007—Multistep manufacturing processes
- H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
- H01L29/66227—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by the electric current supplied or the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched, e.g. three-terminal devices
- H01L29/66409—Unipolar field-effect transistors
- H01L29/66477—Unipolar field-effect transistors with an insulated gate, i.e. MISFET
- H01L29/66833—Unipolar field-effect transistors with an insulated gate, i.e. MISFET with a charge trapping gate insulator, e.g. MNOS transistors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/792—Field effect transistors with field effect produced by an insulated gate with charge trapping gate insulator, e.g. MNOS-memory transistors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/792—Field effect transistors with field effect produced by an insulated gate with charge trapping gate insulator, e.g. MNOS-memory transistors
- H01L29/7926—Vertical transistors, i.e. transistors having source and drain not in the same horizontal plane
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Non-Volatile Memory (AREA)
- Semiconductor Memories (AREA)
Abstract
Description
Claims (21)
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 반도체 기판을 식각하여 바닥부로부터 돌출된 제1 수직부를 형성하고,상기 바닥부의 상면 및 상기 제1 수직부의 외측에 전하 트랩층을 형성하고,상기 전하 트랩층 외측의 상기 반도체 기판을 식각하여 상기 바닥부를 아래쪽으로 리세스시켜 상기 제1 수직부로부터 외측으로 돌출된 제2 수직부를 형성하고,상기 리세스된 바닥부의 상부, 및 상기 제2 수직부와 상기 전하 트랩층의 외측에 컨트롤 게이트 전극을 형성하는 것을 포함하는 비휘발성 메모리 소자의 제조 방법.
- 제12 항에 있어서,상기 제1 수직부를 형성한 후에, 제1 절연막을 형성하는 것을 더 포함하고,상기 제2 수직부를 형성한 후에, 제2 절연막을 형성하는 것을 더 포함하는 비휘발성 메모리 소자의 제조 방법.
- 제12 항에 있어서,상기 제1 수직부는 상기 반도체 기판 상에 형성된 하드 마스크를 식각 마스크로 이용하여 형성되는 비휘발성 메모리 소자의 제조 방법.
- 제14 항에 있어서,상기 컨트롤 게이트 전극을 형성한 후에,상기 제1 수직부 상의 상기 하드 마스크를 제거하는 것을 더 포함하는 비휘발성 메모리 소자의 제조 방법.
- 제15 항에 있어서,상기 하드 마스크의 제거는 CMP 또는 에치백으로 진행되는 비휘발성 메모리 소자의 제조 방법.
- 제12 항에 있어서,상기 전하 트랩층을 형성하는 것은,상기 제1 수직부가 형성된 상기 반도체 기판의 전면에 상기 전하 트랩층용 물질을 적층하고,상기 전하 트랩층용 물질을 비등방성 식각하는 것을 포함하는 비휘발성 메모리 소자의 제조 방법.
- 제17 항에 있어서,상기 전하 트랩층용 물질은 n형 또는 p형 불순물이 도핑된 폴리실리콘, 또는 금속인 비휘발성 메모리 소자의 제조 방법.
- 제17 항에 있어서,상기 전하 트랩층용 물질은 실리콘 질화물, 실리콘 산질화물 또는 고유전율 물질인 비휘발성 메모리 소자의 제조 방법.
- 제12 항에 있어서,상기 컨트롤 게이트 전극을 형성하는 것은,상기 제2 수직부가 형성된 상기 반도체 기판의 전면에 상기 컨트롤 게이트 전극용 물질을 적층하고,상기 컨트롤 게이트 전극용 물질을 비등방성 식각하는 것을 포함하는 비휘발성 메모리 소자의 제조 방법.
- 제12 항에 있어서,상기 컨트롤 게이트 전극을 형성한 후에,상기 제1 수직부의 상면 및 상기 리세스된 바닥부의 상면에 소스/드레인 영역을 형성하는 것을 더 포함하는 비휘발성 메모리 소자의 제조 방법.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020060100947A KR100889361B1 (ko) | 2006-10-17 | 2006-10-17 | 비휘발성 메모리 소자 및 이의 제조 방법 |
US11/589,994 US20080087940A1 (en) | 2006-10-17 | 2006-10-31 | Nonvolatile memory device and method of fabricating the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020060100947A KR100889361B1 (ko) | 2006-10-17 | 2006-10-17 | 비휘발성 메모리 소자 및 이의 제조 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20080034685A KR20080034685A (ko) | 2008-04-22 |
KR100889361B1 true KR100889361B1 (ko) | 2009-03-18 |
Family
ID=39302357
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020060100947A KR100889361B1 (ko) | 2006-10-17 | 2006-10-17 | 비휘발성 메모리 소자 및 이의 제조 방법 |
Country Status (2)
Country | Link |
---|---|
US (1) | US20080087940A1 (ko) |
KR (1) | KR100889361B1 (ko) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101226685B1 (ko) | 2007-11-08 | 2013-01-25 | 삼성전자주식회사 | 수직형 반도체 소자 및 그 제조 방법. |
KR101532366B1 (ko) | 2009-02-25 | 2015-07-01 | 삼성전자주식회사 | 반도체 기억 소자 |
KR100956798B1 (ko) * | 2009-07-14 | 2010-05-11 | 국민대학교산학협력단 | 다중 비트 저장이 가능한 비휘발성 메모리 셀 제조 방법 및 이를 이용한 노어 타입 메모리 아키텍처 |
TWI398946B (zh) * | 2010-01-28 | 2013-06-11 | Macronix Int Co Ltd | 快閃記憶體及其製造方法與操作方法 |
US8878251B2 (en) * | 2012-10-17 | 2014-11-04 | Seoul National University R&Db Foundation | Silicon-compatible compound junctionless field effect transistor |
CN115662990A (zh) * | 2021-07-08 | 2023-01-31 | 长鑫存储技术有限公司 | 半导体结构及半导体结构的制作方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005268418A (ja) * | 2004-03-17 | 2005-09-29 | Fujio Masuoka | 半導体記憶装置及びその製造方法 |
JP2005311251A (ja) * | 2004-04-26 | 2005-11-04 | Fujio Masuoka | 半導体記憶装置及びその製造方法、それを備えてなる携帯電子機器 |
KR20060031428A (ko) * | 2004-10-08 | 2006-04-12 | 삼성전자주식회사 | 비휘발성 기억 소자 및 그 형성 방법 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6876991B1 (en) * | 1999-11-08 | 2005-04-05 | Collaborative Decision Platforms, Llc. | System, method and computer program product for a collaborative decision platform |
KR100634266B1 (ko) * | 2004-09-02 | 2006-10-13 | 삼성전자주식회사 | 불휘발성 메모리 장치, 이를 제조하는 방법 및 이를동작시키는 방법 |
-
2006
- 2006-10-17 KR KR1020060100947A patent/KR100889361B1/ko active IP Right Grant
- 2006-10-31 US US11/589,994 patent/US20080087940A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005268418A (ja) * | 2004-03-17 | 2005-09-29 | Fujio Masuoka | 半導体記憶装置及びその製造方法 |
JP2005311251A (ja) * | 2004-04-26 | 2005-11-04 | Fujio Masuoka | 半導体記憶装置及びその製造方法、それを備えてなる携帯電子機器 |
KR20060031428A (ko) * | 2004-10-08 | 2006-04-12 | 삼성전자주식회사 | 비휘발성 기억 소자 및 그 형성 방법 |
Also Published As
Publication number | Publication date |
---|---|
KR20080034685A (ko) | 2008-04-22 |
US20080087940A1 (en) | 2008-04-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US9825049B2 (en) | Semiconductor device and manufacturing method of semiconductor device | |
KR100876851B1 (ko) | 적층된 박막 트랜지스터 비휘발성 메모리 소자 및 그것을제조하기 위한 방법 | |
US9799776B2 (en) | Semi-floating gate FET | |
EP1912254B1 (en) | Vertical-channel FinFET SONOS memory and manufacturing method thereof | |
US8507973B2 (en) | Non-volatile memory device and method for fabricating the same | |
KR20060028765A (ko) | 비휘발성 메모리 디바이스 | |
US7973356B2 (en) | Nonvolatile semiconductor memory and method of manufacturing the same | |
US20120007165A1 (en) | Semiconductor devices | |
JP6688698B2 (ja) | 半導体装置およびその製造方法 | |
US9230971B2 (en) | NAND string containing self-aligned control gate sidewall cladding | |
US9905429B2 (en) | Semiconductor device and a manufacturing method thereof | |
TWI541944B (zh) | 非揮發性記憶體結構及其製法 | |
KR100889361B1 (ko) | 비휘발성 메모리 소자 및 이의 제조 방법 | |
KR100855557B1 (ko) | 비휘발성 메모리 소자 및 이의 제조 방법 | |
US8587036B2 (en) | Non-volatile memory and fabricating method thereof | |
US8779503B2 (en) | Nonvolatile semiconductor memory | |
US10229998B2 (en) | Semiconductor device and method of manufacturing the same | |
KR20070049731A (ko) | 플래시 메모리 및 그 제조방법 | |
TWI829966B (zh) | 記憶體裝置及其製造方法 | |
KR100772905B1 (ko) | 비휘발성 메모리 소자 및 그 제조 방법 | |
JP6275920B2 (ja) | 半導体装置およびその製造方法 | |
CN112530974A (zh) | 半导体结构、集成电路以及形成半导体结构的方法 | |
KR100827441B1 (ko) | 비휘발성 메모리 소자 및 이의 제조 방법 | |
WO2014201746A1 (zh) | 存储器件及其制造方法 | |
US9006812B2 (en) | Nonvolatile semiconductor memory device and method for manufacturing the same |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
AMND | Amendment | ||
E601 | Decision to refuse application | ||
J201 | Request for trial against refusal decision | ||
AMND | Amendment | ||
E902 | Notification of reason for refusal | ||
B701 | Decision to grant | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 20130228 Year of fee payment: 5 |
|
FPAY | Annual fee payment |
Payment date: 20140228 Year of fee payment: 6 |
|
FPAY | Annual fee payment |
Payment date: 20150302 Year of fee payment: 7 |
|
FPAY | Annual fee payment |
Payment date: 20170228 Year of fee payment: 9 |
|
FPAY | Annual fee payment |
Payment date: 20180228 Year of fee payment: 10 |
|
FPAY | Annual fee payment |
Payment date: 20200228 Year of fee payment: 12 |