KR101051806B1 - 비휘발성 메모리 소자의 셀 제조 방법 - Google Patents
비휘발성 메모리 소자의 셀 제조 방법 Download PDFInfo
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- KR101051806B1 KR101051806B1 KR1020040115996A KR20040115996A KR101051806B1 KR 101051806 B1 KR101051806 B1 KR 101051806B1 KR 1020040115996 A KR1020040115996 A KR 1020040115996A KR 20040115996 A KR20040115996 A KR 20040115996A KR 101051806 B1 KR101051806 B1 KR 101051806B1
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- Prior art keywords
- film
- buffer insulating
- floating gate
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 29
- 239000000758 substrate Substances 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 15
- 125000006850 spacer group Chemical group 0.000 claims abstract description 15
- 238000005530 etching Methods 0.000 claims abstract description 12
- 238000000151 deposition Methods 0.000 claims abstract description 3
- 150000004767 nitrides Chemical class 0.000 claims description 9
- 230000008878 coupling Effects 0.000 abstract description 8
- 238000010168 coupling process Methods 0.000 abstract description 8
- 238000005859 coupling reaction Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 description 18
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 9
- 229920005591 polysilicon Polymers 0.000 description 9
- 239000004065 semiconductor Substances 0.000 description 6
- 238000002955 isolation Methods 0.000 description 5
- 239000002784 hot electron Substances 0.000 description 4
- 238000005468 ion implantation Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- 238000001039 wet etching Methods 0.000 description 2
- 230000005689 Fowler Nordheim tunneling Effects 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000008570 general process Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Classifications
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- 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
- H01L29/66825—Unipolar field-effect transistors with an insulated gate, i.e. MISFET with a floating gate
-
- 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
- H01L21/77—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
- H01L21/78—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices
- H01L21/82—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components
- H01L21/822—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components the substrate being a semiconductor, using silicon technology
- H01L21/8232—Field-effect technology
- H01L21/8234—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type
- H01L21/823437—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type with a particular manufacturing method of the gate conductors, e.g. particular materials, shapes
-
- 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
- H01L21/77—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
- H01L21/78—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices
- H01L21/82—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components
- H01L21/822—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components the substrate being a semiconductor, using silicon technology
- H01L21/8232—Field-effect technology
- H01L21/8234—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type
- H01L21/823468—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type with a particular manufacturing method of the gate sidewall spacers, e.g. double spacers, particular spacer material or shape
-
- 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
- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/41—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions
- H01L29/423—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions not carrying the current to be rectified, amplified or switched
- H01L29/42312—Gate electrodes for field effect devices
- H01L29/42316—Gate electrodes for field effect devices for field-effect transistors
- H01L29/4232—Gate electrodes for field effect devices for field-effect transistors with insulated gate
- H01L29/42324—Gate electrodes for transistors with a floating gate
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- 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)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Non-Volatile Memory (AREA)
- Semiconductor Memories (AREA)
Abstract
Description
Claims (3)
- 기판 상에 터널 산화막과 플로팅 게이트용 물질을 증착하는 단계;상기 물질 상에 서로 다른 식각율을 갖도록 서로 다른 물질로 제1 및 제2 완충 절연막을 차례로 형성하는 단계;상기 제2 완충 절연막, 상기 제1 완충 절연막 및 상기 물질을 식각하여 플로팅 게이트를 형성하는 단계;상기 플로팅 게이트의 양측벽에 유전체막을 형성하는 단계;상기 유전체막과, 상기 제1 및 제2 완충 절연막의 양측벽에 상기 제1 완충 절연막과 동일한 물질로 스페이서를 형성하는 단계;상기 스페이서를 통해 노출되는 상기 제2 완충 절연막을 제거하여 상기 제1 완충 산화막을 노출시키는 단계;상기 제1 완충 절연막과 상기 스페이서를 덮도록 컨트롤 게이트를 형성하는 단계; 및상기 컨트롤 게이트의 양측으로 노출되는 상기 기판 상에 소오스/드레인 영역을 형성하는 단계;를 포함하는 비휘발성 메모리 소자의 셀 제조방법.
- 제 1 항에 있어서,상기 제1 완충 절연막은 질화 산화막으로 형성하는 비휘발성 메모리 소자의 셀 제조방법.
- 제 1 항에 있어서,상기 제2 완충 절연막은 산화막으로 형성하는 비휘발성 메모리 소자의 셀 제조방법.
Priority Applications (1)
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---|---|---|---|
KR1020040115996A KR101051806B1 (ko) | 2004-12-30 | 2004-12-30 | 비휘발성 메모리 소자의 셀 제조 방법 |
Applications Claiming Priority (1)
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KR1020040115996A KR101051806B1 (ko) | 2004-12-30 | 2004-12-30 | 비휘발성 메모리 소자의 셀 제조 방법 |
Publications (2)
Publication Number | Publication Date |
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KR20060077193A KR20060077193A (ko) | 2006-07-05 |
KR101051806B1 true KR101051806B1 (ko) | 2011-07-25 |
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KR1020040115996A KR101051806B1 (ko) | 2004-12-30 | 2004-12-30 | 비휘발성 메모리 소자의 셀 제조 방법 |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20020064589A (ko) * | 2001-02-02 | 2002-08-09 | 삼성전자 주식회사 | 불휘발성 메모리 장치의 게이트 스페이서 형성 방법 |
KR20030034124A (ko) * | 1998-11-30 | 2003-05-01 | 가부시끼가이샤 도시바 | 불휘발성 반도체 메모리의 제조 방법 |
KR20040054342A (ko) * | 2002-12-18 | 2004-06-25 | 아남반도체 주식회사 | 저전압 구동 플래쉬 메모리 및 그 제조 방법 |
KR20040055172A (ko) * | 2002-12-20 | 2004-06-26 | 삼성전자주식회사 | 플로팅 게이트를 갖는 비휘발성 기억 셀 및 그 형성방법 |
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2004
- 2004-12-30 KR KR1020040115996A patent/KR101051806B1/ko active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20030034124A (ko) * | 1998-11-30 | 2003-05-01 | 가부시끼가이샤 도시바 | 불휘발성 반도체 메모리의 제조 방법 |
KR20020064589A (ko) * | 2001-02-02 | 2002-08-09 | 삼성전자 주식회사 | 불휘발성 메모리 장치의 게이트 스페이서 형성 방법 |
KR20040054342A (ko) * | 2002-12-18 | 2004-06-25 | 아남반도체 주식회사 | 저전압 구동 플래쉬 메모리 및 그 제조 방법 |
KR20040055172A (ko) * | 2002-12-20 | 2004-06-26 | 삼성전자주식회사 | 플로팅 게이트를 갖는 비휘발성 기억 셀 및 그 형성방법 |
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KR20060077193A (ko) | 2006-07-05 |
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