KR100404560B1 - 반도체 장치의 제조방법 - Google Patents
반도체 장치의 제조방법 Download PDFInfo
- Publication number
- KR100404560B1 KR100404560B1 KR10-2001-0000822A KR20010000822A KR100404560B1 KR 100404560 B1 KR100404560 B1 KR 100404560B1 KR 20010000822 A KR20010000822 A KR 20010000822A KR 100404560 B1 KR100404560 B1 KR 100404560B1
- Authority
- KR
- South Korea
- Prior art keywords
- layer
- insulating layer
- bit line
- polysilicon
- etchant
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B99/00—Subject matter not provided for in other groups of this subclass
-
- 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
- H01L21/31105—Etching inorganic layers
- H01L21/31111—Etching inorganic layers by chemical means
-
- 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
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/321—After treatment
- H01L21/32115—Planarisation
-
- 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
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/321—After treatment
- H01L21/3213—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer
- H01L21/32133—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only
- H01L21/32134—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only by liquid etching only
-
- 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
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76801—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing
- H01L21/76802—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing by forming openings in dielectrics
- H01L21/76807—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing by forming openings in dielectrics for dual damascene structures
-
- 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
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76801—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing
- H01L21/76802—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing by forming openings in dielectrics
- H01L21/76814—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing by forming openings in dielectrics post-treatment or after-treatment, e.g. cleaning or removal of oxides on underlying conductors
-
- 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
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/7684—Smoothing; Planarisation
-
- 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
- H10B—ELECTRONIC MEMORY DEVICES
- H10B69/00—Erasable-and-programmable ROM [EPROM] devices not provided for in groups H10B41/00 - H10B63/00, e.g. ultraviolet erasable-and-programmable ROM [UVEPROM] devices
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Semiconductor Memories (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Abstract
Description
Claims (17)
- 콘택홀 또는 개구부를 갖는 산화막 상에 폴리실리콘층을 증착하는 단계;상기 폴리실리콘층을 에치백하여 상기 콘택홀 또는 개구부의 내부에만 상기 폴리실리콘층을 잔류시키는 단계;폴리실리콘과 산화물에 대해 유사한 식각율을 갖는 제1 에천트를 이용한 세정 공정을 실시하여 상기 폴리실리콘층의 에치백에 의해 상기 산화막의 표면에 생성된 데미지층을 제거하는 단계;상기 데미지층이 제거된 산화막 상에 식각 저지층을 형성하는 단계; 및상기 식각 저지층 상에 절연층을 증착하는 단계를 구비하는 것을 특징으로 하는 반도체 장치의 제조방법.
- 제1항에 있어서, 상기 제1 에천트는 상기 폴리실리콘과 산화물에 대한 식각 선택비가 1:1 내지 1:1.5인 것을 특징으로 하는 반도체 장치의 제조방법.
- 제1항에 있어서, 상기 제1 에천트로 NH4OH, H2O2및 H2O가 1:4:20의 비로 혼합된 용액을 사용하는 것을 특징으로 하는 반도체 장치의 제조방법.
- 삭제
- 제1항에 있어서, 상기 절연층을 증착하는 단계 후, 상기 절연층을 식각하여 절연층 패턴을 형성하는 단계; 및 제2 에천트를 이용한 세정 공정을 실시하는 단계를 더 구비하는 것을 특징으로 하는 반도체 장치의 제조방법.
- 제5항에 있어서, 상기 제2 에천트는 초순수 및 HF가 200:1의 부피 비율로 희석되어 있는 것을 특징으로 하는 반도체 장치의 제조방법.
- 필드 영역에 의해 이격되어 제1 방향으로 신장되는 복수개의 액티브 영역 및 상기 액티브 영역 상에 상기 제2 방향으로 신장되는 복수개의 워드라인이 형성되어 있는 반도체 기판 상에 산화물로 이루어진 층간절연층을 증착하는 단계;상기 층간절연층을 식각하여 상기 액티브 영역의 제1 영역을 노출시키는 복수개의 비트라인 콘택홀을 형성하는 단계;상기 결과물 상에 폴리실리콘층을 증착하고, 상기 폴리실리콘층을 에치백하여 상기 비트라인 콘택홀의 내부에 비트라인 플러그를 형성하는 단계;폴리실리콘과 산화물에 대해 유사한 식각율을 갖는 제1 에천트를 이용한 세정 공정을 실시하여 상기 폴리실리콘층의 에치백에 의해 상기 층간절연층의 표면에 생성된 데미지층을 제거하는 단계;상기 결과물 상에 식각 저지층 및 비트라인 절연층을 차례로 증착하는 단계;상기 비트라인 절연층 및 상기 식각 저지층을 식각하여 상기 제1 방향으로신장되는 복수개의 비트라인 절연층 패턴 및 식각 저지층 패턴을 형성함과 동시에, 이웃하는 비트라인 절연층 패턴 사이에 비트라인 배선영역을 정의하는 단계;상기 층간절연층을 식각하여 상기 액티브 영역의 제2 영역을 노출시키는 복수개의 금속 콘택홀을 형성하는 단계;제2 에천트를 이용한 세정 공정을 실시하여 상기 비트라인 플러그 상의 자연 산화막을 제거하는 단계; 및상기 결과물 상에 금속층을 증착하고 상기 비트라인 절연층 패턴까지 상기 금속층을 화학 기계적 연마에 의해 제거하여 상기 제1 방향으로 신장되는 복수개의 비트라인을 형성함과 동시에, 상기 금속 콘택홀을 매립하는 금속 배선을 형성하는 단계를 구비하는 것을 특징으로 하는 불휘발성 메모리 장치의 제조방법.
- 제7항에 있어서, 상기 제1 에천트는 상기 폴리실리콘과 산화물에 대한 식각 선택비가 1:1 내지 1:1.5인 것을 특징으로 하는 불휘발성 메모리 장치의 제조방법.
- 제7항에 있어서, 상기 제1 에천트로 NH4OH, H2O2및 H2O가 1:4:20의 비로 혼합된 용액을 사용하는 것을 특징으로 하는 불휘발성 메모리 장치의 제조방법.
- 제7항에 있어서, 상기 제1 에천트를 이용한 세정 공정을 20∼30분 정도 실시하는 것을 특징으로 하는 불휘발성 메모리 장치의 제조방법.
- 제7항에 있어서, 상기 제2 에천트는 초순수 및 HF가 200:1의 부피 비율로 희석되어 있는 것을 특징으로 하는 불휘발성 메모리 장치의 제조방법.
- 제7항에 있어서, 상기 층간절연층은 고밀도 플라즈마 산화물로 형성하는 것을 특징으로 하는 불휘발성 메모리 장치의 제조방법.
- 제7항에 있어서, 상기 비트라인 절연층은 임의의 식각 공정에 대해 상기 식각 저지층을 구성하는 물질과는 서로 다른 식각율을 갖는 물질로 형성하는 것을 특징으로 하는 불휘발성 메모리 장치의 제조방법.
- 제13항에 있어서, 상기 식각 저지층은 실리콘산질화물이며, 상기 비트라인 절연층은 TEOS인 것을 특징으로 하는 불휘발성 메모리 장치의 제조방법.
- 제7항에 있어서, 상기 금속층을 증착하는 단계 전에, 상기 비트라인 절연층 패턴, 상기 비트라인 플러그, 상기 층간절연층 및 상기 금속 콘택홀 상에 연속적으로 장벽 금속층을 증착하는 단계를 구비하는 것을 특징으로 하는 불휘발성 메모리 장치의 제조방법.
- 제15항에 있어서, 상기 장벽 금속층은 티타늄/티타늄 나이트라이드(Ti/TiN)로 형성하는 것을 특징으로 하는 불휘발성 메모리 장치의 제조방법.
- 제7항에 있어서, 상기 금속층은 텅스텐으로 형성하는 것을 특징으로 하는 불휘발성 메모리 장치의 제조방법.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2001-0000822A KR100404560B1 (ko) | 2001-01-06 | 2001-01-06 | 반도체 장치의 제조방법 |
US10/021,991 US6489201B2 (en) | 2001-01-06 | 2001-12-13 | Method for manufacturing a semiconductor device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2001-0000822A KR100404560B1 (ko) | 2001-01-06 | 2001-01-06 | 반도체 장치의 제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20020057750A KR20020057750A (ko) | 2002-07-12 |
KR100404560B1 true KR100404560B1 (ko) | 2003-11-05 |
Family
ID=19704340
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR10-2001-0000822A KR100404560B1 (ko) | 2001-01-06 | 2001-01-06 | 반도체 장치의 제조방법 |
Country Status (2)
Country | Link |
---|---|
US (1) | US6489201B2 (ko) |
KR (1) | KR100404560B1 (ko) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2001270026A1 (en) * | 2000-06-21 | 2002-01-02 | Input/Output, Inc. | Accelerometer with folded beams |
KR100396470B1 (ko) * | 2001-02-19 | 2003-09-03 | 삼성전자주식회사 | 비트라인 콘택패드를 갖는 불휘발성 메모리 장치 및 그제조방법 |
US6949411B1 (en) * | 2001-12-27 | 2005-09-27 | Lam Research Corporation | Method for post-etch and strip residue removal on coral films |
TW529170B (en) * | 2002-04-15 | 2003-04-21 | Macronix Int Co Ltd | Memory device and manufacturing method thereof |
US6828211B2 (en) * | 2002-10-01 | 2004-12-07 | Taiwan Semiconductor Manufacturing Co., Ltd. | Shallow trench filled with two or more dielectrics for isolation and coupling or for stress control |
US6921727B2 (en) * | 2003-03-11 | 2005-07-26 | Applied Materials, Inc. | Method for modifying dielectric characteristics of dielectric layers |
US7026196B2 (en) * | 2003-11-24 | 2006-04-11 | Taiwan Semiconductor Manufacturing Co., Ltd. | Method of forming field effect transistor and structure formed thereby |
KR100582335B1 (ko) * | 2003-12-05 | 2006-05-22 | 에스티마이크로일렉트로닉스 엔.브이. | 낸드 플래시 소자의 제조 방법 |
JP2006245198A (ja) * | 2005-03-02 | 2006-09-14 | Nec Electronics Corp | 半導体装置の製造方法 |
US7320934B2 (en) * | 2005-06-20 | 2008-01-22 | Infineon Technologies Ag | Method of forming a contact in a flash memory device |
KR100833423B1 (ko) * | 2006-04-06 | 2008-05-29 | 주식회사 하이닉스반도체 | 반도체 소자의 제조방법 |
KR101328552B1 (ko) * | 2007-11-16 | 2013-11-13 | 삼성전자주식회사 | 비휘발성 기억 소자 및 그 형성 방법 |
US8735960B2 (en) * | 2008-11-17 | 2014-05-27 | Spansion Llc | High ultraviolet light absorbance silicon oxynitride film for improved flash memory device performance |
KR20200032789A (ko) * | 2018-09-18 | 2020-03-27 | 에스케이하이닉스 주식회사 | 반도체 집적 회로 장치의 콘택 플러그 형성방법 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09162172A (ja) * | 1995-12-11 | 1997-06-20 | Hitachi Ltd | エッチングダメージの除去方法 |
KR19990086741A (ko) * | 1998-05-29 | 1999-12-15 | 윤종용 | 반도체 장치의 콘택홀 세정 방법 |
KR20000000577A (ko) * | 1998-06-01 | 2000-01-15 | 윤종용 | 스캐닝기능을 가지는 프린팅 장치 |
KR20000008925A (ko) * | 1998-07-18 | 2000-02-15 | 윤종용 | 반도체 장치 제조 방법 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5879986A (en) * | 1998-02-27 | 1999-03-09 | Vangaurd International Semiconductor Corporation | Method for fabrication of a one gigabit capacitor over bit line DRAM cell with an area equal to eight times the used minimum feature |
US6037216A (en) * | 1998-11-02 | 2000-03-14 | Vanguard International Semiconductor Corporation | Method for simultaneously fabricating capacitor structures, for giga-bit DRAM cells, and peripheral interconnect structures, using a dual damascene process |
US6096595A (en) * | 1999-05-12 | 2000-08-01 | Taiwan Semiconductor Manufacturing Company | Integration of a salicide process for MOS logic devices, and a self-aligned contact process for MOS memory devices |
US6127260A (en) * | 1999-07-16 | 2000-10-03 | Taiwan Semiconductor Manufacturing Company | Method of forming a tee shaped tungsten plug structure to avoid high aspect ratio contact holes in embedded DRAM devices |
US6124192A (en) * | 1999-09-27 | 2000-09-26 | Vanguard International Semicondutor Corporation | Method for fabricating ultra-small interconnections using simplified patterns and sidewall contact plugs |
-
2001
- 2001-01-06 KR KR10-2001-0000822A patent/KR100404560B1/ko not_active IP Right Cessation
- 2001-12-13 US US10/021,991 patent/US6489201B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09162172A (ja) * | 1995-12-11 | 1997-06-20 | Hitachi Ltd | エッチングダメージの除去方法 |
KR19990086741A (ko) * | 1998-05-29 | 1999-12-15 | 윤종용 | 반도체 장치의 콘택홀 세정 방법 |
KR20000000577A (ko) * | 1998-06-01 | 2000-01-15 | 윤종용 | 스캐닝기능을 가지는 프린팅 장치 |
KR20000008925A (ko) * | 1998-07-18 | 2000-02-15 | 윤종용 | 반도체 장치 제조 방법 |
Also Published As
Publication number | Publication date |
---|---|
KR20020057750A (ko) | 2002-07-12 |
US6489201B2 (en) | 2002-12-03 |
US20020090784A1 (en) | 2002-07-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR100396470B1 (ko) | 비트라인 콘택패드를 갖는 불휘발성 메모리 장치 및 그제조방법 | |
US7575990B2 (en) | Method of forming self-aligned contacts and local interconnects | |
US7094672B2 (en) | Method for forming self-aligned contact in semiconductor device | |
KR100514673B1 (ko) | 낸드 플래시 메모리 소자의 제조 방법 | |
KR100404560B1 (ko) | 반도체 장치의 제조방법 | |
US7419895B2 (en) | NAND memory arrays | |
US6294460B1 (en) | Semiconductor manufacturing method using a high extinction coefficient dielectric photomask | |
KR100397176B1 (ko) | 불휘발성 메모리 장치의 평탄화 방법 | |
US7829437B2 (en) | Method of manufacturing a semiconductor device | |
US7871885B2 (en) | Manufacturing method of flash memory device | |
US6365509B1 (en) | Semiconductor manufacturing method using a dielectric photomask | |
KR20100008942A (ko) | 반도체 소자 및 그 제조 방법 | |
US7262122B2 (en) | Method of forming metal line in semiconductor memory device | |
US7105887B2 (en) | Memory cell structures including a gap filling layer and methods of fabricating the same | |
KR100672119B1 (ko) | 플래시 메모리 소자의 게이트 형성 방법 | |
KR100602126B1 (ko) | 플래시 메모리 셀 및 그 제조 방법 | |
KR20020084473A (ko) | 불휘발성 메모리 장치 및 그 제조방법 | |
KR20070093672A (ko) | 패턴 형성 방법 및 이를 이용한 불휘발성 메모리 장치의플로팅 게이트 형성 방법 | |
KR100612566B1 (ko) | 플래시 메모리 소자의 제조 방법 | |
KR20050108141A (ko) | 낸드 플래쉬 메모리 소자의 제조 방법 | |
KR100559996B1 (ko) | 플래시 메모리 제조 방법 | |
KR100772677B1 (ko) | 반도체 소자의 제조방법 | |
KR20020095547A (ko) | 불휘발성 메모리 장치의 게이트 구조 및 그 제조방법 | |
KR100875048B1 (ko) | 반도체 소자 및 그 제조 방법 | |
KR20050075178A (ko) | 낸드 플래시 메모리 소자의 제조 방법 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
PA0109 | Patent application |
Patent event code: PA01091R01D Comment text: Patent Application Patent event date: 20010106 |
|
PA0201 | Request for examination | ||
PG1501 | Laying open of application | ||
E902 | Notification of reason for refusal | ||
PE0902 | Notice of grounds for rejection |
Comment text: Notification of reason for refusal Patent event date: 20021030 Patent event code: PE09021S01D |
|
E701 | Decision to grant or registration of patent right | ||
PE0701 | Decision of registration |
Patent event code: PE07011S01D Comment text: Decision to Grant Registration Patent event date: 20030731 |
|
GRNT | Written decision to grant | ||
PR0701 | Registration of establishment |
Comment text: Registration of Establishment Patent event date: 20031024 Patent event code: PR07011E01D |
|
PR1002 | Payment of registration fee |
Payment date: 20031027 End annual number: 3 Start annual number: 1 |
|
PG1601 | Publication of registration | ||
PR1001 | Payment of annual fee |
Payment date: 20060928 Start annual number: 4 End annual number: 4 |
|
PR1001 | Payment of annual fee |
Payment date: 20071001 Start annual number: 5 End annual number: 5 |
|
PR1001 | Payment of annual fee |
Payment date: 20081001 Start annual number: 6 End annual number: 6 |
|
PR1001 | Payment of annual fee |
Payment date: 20091016 Start annual number: 7 End annual number: 7 |
|
PR1001 | Payment of annual fee |
Payment date: 20101007 Start annual number: 8 End annual number: 8 |
|
FPAY | Annual fee payment |
Payment date: 20110930 Year of fee payment: 9 |
|
PR1001 | Payment of annual fee |
Payment date: 20110930 Start annual number: 9 End annual number: 9 |
|
FPAY | Annual fee payment |
Payment date: 20120925 Year of fee payment: 10 |
|
PR1001 | Payment of annual fee |
Payment date: 20120925 Start annual number: 10 End annual number: 10 |
|
LAPS | Lapse due to unpaid annual fee | ||
PC1903 | Unpaid annual fee |