CN1186820C - 半导体存储阵列及其制造方法 - Google Patents
半导体存储阵列及其制造方法 Download PDFInfo
- Publication number
- CN1186820C CN1186820C CNB011357045A CN01135704A CN1186820C CN 1186820 C CN1186820 C CN 1186820C CN B011357045 A CNB011357045 A CN B011357045A CN 01135704 A CN01135704 A CN 01135704A CN 1186820 C CN1186820 C CN 1186820C
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- Prior art keywords
- layer
- forming
- conductive material
- polysilicon
- insulating material
- 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.)
- Expired - Lifetime
Links
- 239000004065 semiconductor Substances 0.000 title claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 title description 7
- 238000000034 method Methods 0.000 claims abstract description 125
- 239000000758 substrate Substances 0.000 claims abstract description 77
- 239000004020 conductor Substances 0.000 claims abstract description 73
- 238000007667 floating Methods 0.000 claims abstract description 68
- 125000006850 spacer group Chemical group 0.000 claims abstract description 34
- 238000002955 isolation Methods 0.000 claims abstract description 19
- 238000005530 etching Methods 0.000 claims description 113
- 239000011810 insulating material Substances 0.000 claims description 33
- 229910052710 silicon Inorganic materials 0.000 claims description 29
- 239000010703 silicon Substances 0.000 claims description 29
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 18
- 238000001465 metallisation Methods 0.000 claims description 18
- 238000011049 filling Methods 0.000 claims description 8
- 238000003860 storage Methods 0.000 claims description 8
- 238000002161 passivation Methods 0.000 claims description 5
- 230000001590 oxidative effect Effects 0.000 claims 3
- 230000000903 blocking effect Effects 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000005641 tunneling Effects 0.000 claims 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 266
- 229920005591 polysilicon Polymers 0.000 description 256
- 239000010410 layer Substances 0.000 description 238
- 238000005192 partition Methods 0.000 description 92
- 230000003647 oxidation Effects 0.000 description 67
- 238000007254 oxidation reaction Methods 0.000 description 67
- 238000006396 nitration reaction Methods 0.000 description 49
- 238000005516 engineering process Methods 0.000 description 44
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 26
- 229910052751 metal Inorganic materials 0.000 description 26
- 239000002184 metal Substances 0.000 description 26
- 230000015572 biosynthetic process Effects 0.000 description 25
- 229920002120 photoresistant polymer Polymers 0.000 description 25
- 230000004888 barrier function Effects 0.000 description 24
- 238000001020 plasma etching Methods 0.000 description 20
- 238000000151 deposition Methods 0.000 description 18
- 229910052581 Si3N4 Inorganic materials 0.000 description 16
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 16
- 150000002500 ions Chemical class 0.000 description 15
- 229910021332 silicide Inorganic materials 0.000 description 14
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 14
- 239000012774 insulation material Substances 0.000 description 13
- 239000000377 silicon dioxide Substances 0.000 description 13
- 235000012239 silicon dioxide Nutrition 0.000 description 11
- 238000002347 injection Methods 0.000 description 8
- 239000007924 injection Substances 0.000 description 8
- 239000005380 borophosphosilicate glass Substances 0.000 description 7
- 238000009413 insulation Methods 0.000 description 7
- 150000004767 nitrides Chemical class 0.000 description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 6
- 230000000295 complement effect Effects 0.000 description 5
- 238000001259 photo etching Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000008021 deposition Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 238000001459 lithography Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 239000010941 cobalt Substances 0.000 description 3
- 229910017052 cobalt Inorganic materials 0.000 description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 3
- 239000011733 molybdenum Substances 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 229910052697 platinum Inorganic materials 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- 229910052721 tungsten Inorganic materials 0.000 description 3
- 239000010937 tungsten Substances 0.000 description 3
- 238000001039 wet etching Methods 0.000 description 3
- 206010011469 Crying Diseases 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- -1 silicon nitrides Chemical class 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002224 dissection Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000000452 restraining effect 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
- 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
-
- 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
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/01—Manufacture or treatment
- H10D30/021—Manufacture or treatment of FETs having insulated gates [IGFET]
- H10D30/0411—Manufacture or treatment of FETs having insulated gates [IGFET] of FETs having floating gates
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
- H10D30/68—Floating-gate IGFETs
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
- H10D30/68—Floating-gate IGFETs
- H10D30/6891—Floating-gate IGFETs characterised by the shapes, relative sizes or dispositions of the floating gate electrode
-
- 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
Landscapes
- Semiconductor Memories (AREA)
- Non-Volatile Memory (AREA)
Applications Claiming Priority (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US23431400P | 2000-09-20 | 2000-09-20 | |
| US23398800P | 2000-09-20 | 2000-09-20 | |
| US60/233988 | 2000-09-20 | ||
| US60/234314 | 2000-09-20 | ||
| US24209600P | 2000-10-19 | 2000-10-19 | |
| US60/242096 | 2000-10-19 | ||
| US09/916,619 US6868015B2 (en) | 2000-09-20 | 2001-07-26 | Semiconductor memory array of floating gate memory cells with control gate spacer portions |
| US09/916619 | 2001-07-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1351382A CN1351382A (zh) | 2002-05-29 |
| CN1186820C true CN1186820C (zh) | 2005-01-26 |
Family
ID=27499707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011357045A Expired - Lifetime CN1186820C (zh) | 2000-09-20 | 2001-09-19 | 半导体存储阵列及其制造方法 |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US6868015B2 (enExample) |
| EP (1) | EP1191585A2 (enExample) |
| JP (1) | JP5140219B2 (enExample) |
| KR (1) | KR100821495B1 (enExample) |
| CN (1) | CN1186820C (enExample) |
| TW (1) | TW514994B (enExample) |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6803624B2 (en) * | 2002-07-03 | 2004-10-12 | Micron Technology, Inc. | Programmable memory devices supported by semiconductive substrates |
| KR100435261B1 (ko) * | 2002-08-07 | 2004-06-11 | 삼성전자주식회사 | 스플릿 게이트형 플래쉬 메모리소자의 제조방법 |
| US7049188B2 (en) * | 2002-11-26 | 2006-05-23 | Advanced Micro Devices, Inc. | Lateral doped channel |
| US6806531B1 (en) * | 2003-04-07 | 2004-10-19 | Silicon Storage Technology, Inc. | Non-volatile floating gate memory cell with floating gates formed in cavities, and array thereof, and method of formation |
| US7613041B2 (en) * | 2003-06-06 | 2009-11-03 | Chih-Hsin Wang | Methods for operating semiconductor device and semiconductor memory device |
| US7759719B2 (en) * | 2004-07-01 | 2010-07-20 | Chih-Hsin Wang | Electrically alterable memory cell |
| US7550800B2 (en) * | 2003-06-06 | 2009-06-23 | Chih-Hsin Wang | Method and apparatus transporting charges in semiconductor device and semiconductor memory device |
| US7009244B2 (en) | 2003-07-02 | 2006-03-07 | Integrated Memory Technologies, Inc. | Scalable flash EEPROM memory cell with notched floating gate and graded source region |
| KR100539247B1 (ko) * | 2004-02-04 | 2005-12-27 | 삼성전자주식회사 | 스플릿 게이트형 비휘발성 반도체 메모리 소자 및 그제조방법 |
| JP2005260071A (ja) * | 2004-03-12 | 2005-09-22 | Sharp Corp | 半導体記憶装置の製造方法 |
| KR100546405B1 (ko) * | 2004-03-18 | 2006-01-26 | 삼성전자주식회사 | 스플릿 게이트형 비휘발성 반도체 메모리 소자 및 그제조방법 |
| US20080203464A1 (en) * | 2004-07-01 | 2008-08-28 | Chih-Hsin Wang | Electrically alterable non-volatile memory and array |
| US7411244B2 (en) | 2005-06-28 | 2008-08-12 | Chih-Hsin Wang | Low power electrically alterable nonvolatile memory cells and arrays |
| KR100634006B1 (ko) * | 2005-09-05 | 2006-10-16 | 동부일렉트로닉스 주식회사 | 스플리트 게이트형 비휘발성 기억 장치 및 그 제조방법 |
| US8138524B2 (en) * | 2006-11-01 | 2012-03-20 | Silicon Storage Technology, Inc. | Self-aligned method of forming a semiconductor memory array of floating memory cells with source side erase, and a memory array made thereby |
| US7641226B2 (en) * | 2006-11-01 | 2010-01-05 | Autoliv Development Ab | Side airbag module with an internal guide fin |
| US20080157170A1 (en) * | 2006-12-29 | 2008-07-03 | Atmel Corporation | Eeprom cell with adjustable barrier in the tunnel window region |
| US8072023B1 (en) | 2007-11-12 | 2011-12-06 | Marvell International Ltd. | Isolation for non-volatile memory cell array |
| US8120088B1 (en) | 2007-12-07 | 2012-02-21 | Marvell International Ltd. | Non-volatile memory cell and array |
| US9634019B1 (en) * | 2015-10-01 | 2017-04-25 | Silicon Storage Technology, Inc. | Non-volatile split gate memory cells with integrated high K metal gate, and method of making same |
| CN107305892B (zh) * | 2016-04-20 | 2020-10-02 | 硅存储技术公司 | 使用两个多晶硅沉积步骤来形成三栅极非易失性闪存单元对的方法 |
| CN107359163B (zh) * | 2016-05-05 | 2020-06-02 | 中芯国际集成电路制造(天津)有限公司 | 存储单元的制备方法 |
| KR102604564B1 (ko) | 2016-07-01 | 2023-11-22 | 인텔 코포레이션 | 자기 정렬 게이트 에지 트라이게이트 및 finfet 디바이스들 |
| TWI805336B (zh) * | 2022-04-25 | 2023-06-11 | 華邦電子股份有限公司 | 半導體結構及其形成方法 |
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-
2001
- 2001-07-26 US US09/916,619 patent/US6868015B2/en not_active Expired - Lifetime
- 2001-09-19 CN CNB011357045A patent/CN1186820C/zh not_active Expired - Lifetime
- 2001-09-19 EP EP01307977A patent/EP1191585A2/en not_active Withdrawn
- 2001-09-19 TW TW090123061A patent/TW514994B/zh not_active IP Right Cessation
- 2001-09-19 JP JP2001284960A patent/JP5140219B2/ja not_active Expired - Lifetime
- 2001-09-20 KR KR1020010058275A patent/KR100821495B1/ko not_active Expired - Lifetime
-
2004
- 2004-05-18 US US10/848,982 patent/US7018897B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| TW514994B (en) | 2002-12-21 |
| EP1191585A2 (en) | 2002-03-27 |
| CN1351382A (zh) | 2002-05-29 |
| JP2002151608A (ja) | 2002-05-24 |
| US7018897B2 (en) | 2006-03-28 |
| KR100821495B1 (ko) | 2008-04-11 |
| US20020034846A1 (en) | 2002-03-21 |
| KR20020022628A (ko) | 2002-03-27 |
| US6868015B2 (en) | 2005-03-15 |
| US20040214395A1 (en) | 2004-10-28 |
| JP5140219B2 (ja) | 2013-02-06 |
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