KR100609942B1 - 플래쉬 메모리 셀의 제조 방법 - Google Patents
플래쉬 메모리 셀의 제조 방법 Download PDFInfo
- Publication number
- KR100609942B1 KR100609942B1 KR1020040001749A KR20040001749A KR100609942B1 KR 100609942 B1 KR100609942 B1 KR 100609942B1 KR 1020040001749 A KR1020040001749 A KR 1020040001749A KR 20040001749 A KR20040001749 A KR 20040001749A KR 100609942 B1 KR100609942 B1 KR 100609942B1
- Authority
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- South Korea
- Prior art keywords
- film
- gate
- ono
- oxide film
- floating gate
- 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.)
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 46
- 238000010405 reoxidation reaction Methods 0.000 claims abstract description 20
- 238000005530 etching Methods 0.000 claims abstract description 18
- 238000005121 nitriding Methods 0.000 claims abstract description 18
- 229910007991 Si-N Inorganic materials 0.000 claims abstract description 9
- 229910006294 Si—N Inorganic materials 0.000 claims abstract description 9
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 10
- 229920005591 polysilicon Polymers 0.000 claims description 10
- 150000004767 nitrides Chemical class 0.000 claims description 7
- 239000012298 atmosphere Substances 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 6
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 6
- 239000004065 semiconductor Substances 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims description 6
- 239000012159 carrier gas Substances 0.000 claims description 3
- 238000000151 deposition Methods 0.000 claims description 3
- 238000011065 in-situ storage Methods 0.000 claims description 3
- 238000004518 low pressure chemical vapour deposition Methods 0.000 claims description 3
- 239000012495 reaction gas Substances 0.000 claims description 3
- 239000002356 single layer Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 abstract description 7
- 230000002159 abnormal effect Effects 0.000 abstract description 6
- 230000003647 oxidation Effects 0.000 abstract description 5
- 238000005468 ion implantation Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000002019 doping agent Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229910021332 silicide Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B41/00—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates
- H10B41/30—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates characterised by the memory core region
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D64/00—Electrodes of devices having potential barriers
- H10D64/01—Manufacture or treatment
- H10D64/031—Manufacture or treatment of data-storage electrodes
- H10D64/035—Manufacture or treatment of data-storage electrodes comprising conductor-insulator-conductor-insulator-semiconductor structures
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D64/00—Electrodes of devices having potential barriers
- H10D64/60—Electrodes characterised by their materials
- H10D64/66—Electrodes having a conductor capacitively coupled to a semiconductor by an insulator, e.g. MIS electrodes
- H10D64/68—Electrodes having a conductor capacitively coupled to a semiconductor by an insulator, e.g. MIS electrodes characterised by the insulator, e.g. by the gate insulator
- H10D64/681—Electrodes having a conductor capacitively coupled to a semiconductor by an insulator, e.g. MIS electrodes characterised by the insulator, e.g. by the gate insulator having a compositional variation, e.g. multilayered
Landscapes
- Non-Volatile Memory (AREA)
- Semiconductor Memories (AREA)
Abstract
Description
Claims (9)
- 반도체 기판상에 터널 산화막, 플로팅 게이트용 도전막, ONO 유전체막 및 컨트롤 게이트용 도전막을 적층하고, 식각 공정을 통해 상기 적층막을 식각하여 터널 산화막, 플로팅 게이트, ONO(Oxide-Nitride-Oxide) 유전체막 및 컨트롤 게이트로 이루어진 적층 게이트를 형성하는 단계;질화처리를 실시하여 상기 플로팅 게이트와 상기 컨트롤 게이트의 양측면에 Si-N 결합 구조를 이루게 하는 단계; 및재산화 공정을 실시하여 상기 플로팅 게이트 및 컨트롤 게이트의 양측면에 산화막을 형성하는 단계를 포함하는 플래쉬 메모리 셀의 제조 방법.
- 제 1 항에 있어서,상기 플로팅 게이트와 상기 컨트롤 게이트는 도프트 폴리실리콘이 포함된 단층 또는 다층 구조로 형성하는 플래쉬 메모리 셀의 제조 방법.
- 제 1 항에 있어서,상기 ONO 유전체막은 하부 산화막, 중간 질화막 및 상부 산화막이 적층되어 이루어지는 플래쉬 메모리 셀의 제조 방법.
- 제 3 항에 있어서,상기 하부 산화막 및 상기 상부 산화막은 DCS(SiH2Cl2)와 N2O 가스를 소오스로 하는 HTO를 증착하여 형성하는 플래쉬 메모리 셀의 제조 방법.
- 제 3 항에 있어서,상기 중간 질화막은 반응 기체로서 NH3 + DCS 가스를 이용하여 1 내지 3 Torr의 압력하에서 650 내지 800 ℃의 온도 분위기에서 LPCVD 방법으로 형성하는 플래쉬 메모리 셀의 제조 방법.
- 제 1 항에 있어서,상기 질화처리 및 상기 재산화 공정은 인-시튜로 진행하는 플래쉬 메모리 셀의 제조 방법.
- 제 1 항 또는 제 6 항에 있어서,상기 질화처리는 N2 분위기에서 약 30초 이하로 RTN을 실시하는 플래쉬 메모 리 셀의 제조 방법.
- 제 1 항 또는 제 6 항에 있어서,상기 질화처리는 N2 분위기에서 질화를 최소화하기 위하여 캐리어 가스로 사용하는 Ar의 용량과의 비율을 1 : 10 이상이 되도록 유지하여 실시하는 플래쉬 메모리 셀의 제조 방법.
- 제 1 항 또는 제 6 항에 있어서,상기 재산화 공정은 O2 분위기에서 1 내지 10 분 정도로 실시하는 플래쉬 메모리 셀의 제조 방법.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040001749A KR100609942B1 (ko) | 2004-01-09 | 2004-01-09 | 플래쉬 메모리 셀의 제조 방법 |
US10/880,202 US7157332B2 (en) | 2004-01-09 | 2004-06-29 | Method for manufacturing flash memory cell |
JP2004191036A JP4959926B2 (ja) | 2004-01-09 | 2004-06-29 | フラッシュメモリセルの製造方法 |
TW093119261A TWI318440B (en) | 2004-01-09 | 2004-06-30 | Method for manufacturing flash memory cell |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040001749A KR100609942B1 (ko) | 2004-01-09 | 2004-01-09 | 플래쉬 메모리 셀의 제조 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20050073377A KR20050073377A (ko) | 2005-07-13 |
KR100609942B1 true KR100609942B1 (ko) | 2006-08-08 |
Family
ID=34738023
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020040001749A Expired - Fee Related KR100609942B1 (ko) | 2004-01-09 | 2004-01-09 | 플래쉬 메모리 셀의 제조 방법 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7157332B2 (ko) |
JP (1) | JP4959926B2 (ko) |
KR (1) | KR100609942B1 (ko) |
TW (1) | TWI318440B (ko) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100583609B1 (ko) * | 2004-07-05 | 2006-05-26 | 삼성전자주식회사 | 반도체 장치의 게이트 구조물 제조방법 및 이를 이용한불휘발성 메모리 장치의 셀 게이트 구조물 제조방법 |
KR100913744B1 (ko) | 2004-11-05 | 2009-08-24 | 가부시키가이샤후지쿠라 | 광섬유 및 전송 시스템, 및 파장 다중 전송 시스템 |
KR100823715B1 (ko) * | 2006-10-04 | 2008-04-21 | 삼성전자주식회사 | 불휘발성 메모리 장치의 제조 방법 |
JP4834517B2 (ja) * | 2006-11-09 | 2011-12-14 | 株式会社東芝 | 半導体装置 |
KR101194876B1 (ko) | 2009-06-08 | 2012-10-25 | 에스케이하이닉스 주식회사 | 불휘발성 메모리 소자의 게이트 패턴 및 그 형성방법 |
JP5922542B2 (ja) | 2012-09-19 | 2016-05-24 | 東京エレクトロン株式会社 | 積層膜の形成方法およびその形成装置 |
KR102031174B1 (ko) | 2012-11-16 | 2019-10-11 | 삼성전자주식회사 | 반도체 소자, 반도체 소자의 제조 방법 및 기판 가공 장치 |
CN110634876B (zh) * | 2019-09-30 | 2022-03-18 | 上海华力集成电路制造有限公司 | 闪存器件的制造方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5907183A (en) * | 1994-09-29 | 1999-05-25 | Nkk Corporation | Non-volatile semiconductor memory device |
US20030054611A1 (en) | 2001-09-19 | 2003-03-20 | Masayoshi Kanaya | Method of fabricating a split-gate semiconductor device |
JP2003152113A (ja) | 2001-11-09 | 2003-05-23 | Oki Electric Ind Co Ltd | 半導体素子の製造方法 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2690218B2 (ja) * | 1991-08-26 | 1997-12-10 | 山形日本電気株式会社 | 電界効果トランジスタの製造方法 |
JPH05190769A (ja) * | 1992-01-16 | 1993-07-30 | Oki Electric Ind Co Ltd | 半導体素子製造方法 |
JP3523746B2 (ja) * | 1996-03-14 | 2004-04-26 | 株式会社東芝 | 半導体記憶装置の製造方法 |
JPH11154711A (ja) * | 1997-11-20 | 1999-06-08 | Toshiba Corp | 半導体装置の製造方法 |
JP2001176870A (ja) * | 1999-12-21 | 2001-06-29 | Toyota Motor Corp | 窒化膜形成方法 |
KR20010066386A (ko) * | 1999-12-31 | 2001-07-11 | 박종섭 | 플래시 메모리의 게이트전극 제조방법 |
JP2002134745A (ja) * | 2000-10-25 | 2002-05-10 | Sony Corp | 半導体装置の製造方法 |
JP4617574B2 (ja) * | 2001-01-16 | 2011-01-26 | ソニー株式会社 | 不揮発性半導体記憶装置およびその製造方法 |
US6610614B2 (en) | 2001-06-20 | 2003-08-26 | Texas Instruments Incorporated | Method for uniform nitridization of ultra-thin silicon dioxide layers in transistor gates |
JP2003100742A (ja) * | 2001-09-27 | 2003-04-04 | Hitachi Kokusai Electric Inc | 半導体デバイスの製造方法 |
KR100426483B1 (ko) | 2001-12-22 | 2004-04-14 | 주식회사 하이닉스반도체 | 플래쉬 메모리 셀의 제조 방법 |
KR100444604B1 (ko) * | 2001-12-22 | 2004-08-16 | 주식회사 하이닉스반도체 | 플래쉬 메모리 셀의 제조 방법 |
JP2004221459A (ja) * | 2003-01-17 | 2004-08-05 | Elpida Memory Inc | 半導体装置およびその製造方法 |
KR100497474B1 (ko) * | 2003-06-20 | 2005-07-01 | 주식회사 하이닉스반도체 | 반도체소자의 게이트전극 형성방법 |
-
2004
- 2004-01-09 KR KR1020040001749A patent/KR100609942B1/ko not_active Expired - Fee Related
- 2004-06-29 JP JP2004191036A patent/JP4959926B2/ja not_active Expired - Fee Related
- 2004-06-29 US US10/880,202 patent/US7157332B2/en not_active Expired - Fee Related
- 2004-06-30 TW TW093119261A patent/TWI318440B/zh not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5907183A (en) * | 1994-09-29 | 1999-05-25 | Nkk Corporation | Non-volatile semiconductor memory device |
US20030054611A1 (en) | 2001-09-19 | 2003-03-20 | Masayoshi Kanaya | Method of fabricating a split-gate semiconductor device |
JP2003152113A (ja) | 2001-11-09 | 2003-05-23 | Oki Electric Ind Co Ltd | 半導体素子の製造方法 |
Also Published As
Publication number | Publication date |
---|---|
US20050153509A1 (en) | 2005-07-14 |
JP2005197639A (ja) | 2005-07-21 |
JP4959926B2 (ja) | 2012-06-27 |
TW200524095A (en) | 2005-07-16 |
TWI318440B (en) | 2009-12-11 |
US7157332B2 (en) | 2007-01-02 |
KR20050073377A (ko) | 2005-07-13 |
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