CN101777519B - 分栅型非易失性存储器及其制造方法 - Google Patents
分栅型非易失性存储器及其制造方法 Download PDFInfo
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- CN101777519B CN101777519B CN201010022703.6A CN201010022703A CN101777519B CN 101777519 B CN101777519 B CN 101777519B CN 201010022703 A CN201010022703 A CN 201010022703A CN 101777519 B CN101777519 B CN 101777519B
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- 238000010168 coupling process Methods 0.000 claims abstract description 71
- 238000005859 coupling reaction Methods 0.000 claims abstract description 71
- 238000005530 etching Methods 0.000 claims abstract description 45
- 239000004065 semiconductor Substances 0.000 claims abstract description 42
- 239000000758 substrate Substances 0.000 claims abstract description 36
- 230000004888 barrier function Effects 0.000 claims abstract description 27
- 239000011241 protective layer Substances 0.000 claims abstract description 14
- 125000006850 spacer group Chemical group 0.000 claims description 33
- 238000000034 method Methods 0.000 claims description 31
- 238000007667 floating Methods 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 22
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 15
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 15
- 229920005591 polysilicon Polymers 0.000 claims description 12
- 238000010276 construction Methods 0.000 claims description 8
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- 238000000926 separation method Methods 0.000 claims description 7
- 239000000377 silicon dioxide Substances 0.000 claims description 7
- 238000000151 deposition Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 description 15
- 238000005229 chemical vapour deposition Methods 0.000 description 13
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- 239000012535 impurity Substances 0.000 description 7
- 150000002500 ions Chemical class 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 229910052581 Si3N4 Inorganic materials 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 6
- 229920002120 photoresistant polymer Polymers 0.000 description 6
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 6
- 229910052710 silicon Inorganic materials 0.000 description 6
- 239000010703 silicon Substances 0.000 description 6
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 6
- 238000002955 isolation Methods 0.000 description 5
- 150000002739 metals Chemical class 0.000 description 4
- 238000001039 wet etching Methods 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- 238000001020 plasma etching Methods 0.000 description 3
- 239000002210 silicon-based material Substances 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 229910000577 Silicon-germanium Inorganic materials 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- -1 boron ion Chemical class 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
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- 238000009413 insulation Methods 0.000 description 2
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- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000005240 physical vapour deposition Methods 0.000 description 2
- 229910021332 silicide Inorganic materials 0.000 description 2
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
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- XUKUURHRXDUEBC-SXOMAYOGSA-N (3s,5r)-7-[2-(4-fluorophenyl)-3-phenyl-4-(phenylcarbamoyl)-5-propan-2-ylpyrrol-1-yl]-3,5-dihydroxyheptanoic acid Chemical compound C=1C=CC=CC=1C1=C(C=2C=CC(F)=CC=2)N(CC[C@@H](O)C[C@H](O)CC(O)=O)C(C(C)C)=C1C(=O)NC1=CC=CC=C1 XUKUURHRXDUEBC-SXOMAYOGSA-N 0.000 description 1
- 229910015900 BF3 Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- HAYXDMNJJFVXCI-UHFFFAOYSA-N arsenic(5+) Chemical compound [As+5] HAYXDMNJJFVXCI-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- WTEOIRVLGSZEPR-UHFFFAOYSA-N boron trifluoride Chemical compound FB(F)F WTEOIRVLGSZEPR-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000003486 chemical etching Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 229910000449 hafnium oxide Inorganic materials 0.000 description 1
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 description 1
- 239000002784 hot electron Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
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Abstract
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CN201010022703.6A CN101777519B (zh) | 2010-01-12 | 2010-01-12 | 分栅型非易失性存储器及其制造方法 |
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CN201010022703.6A CN101777519B (zh) | 2010-01-12 | 2010-01-12 | 分栅型非易失性存储器及其制造方法 |
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CN101777519A CN101777519A (zh) | 2010-07-14 |
CN101777519B true CN101777519B (zh) | 2013-09-25 |
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Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4868629A (en) * | 1984-05-15 | 1989-09-19 | Waferscale Integration, Inc. | Self-aligned split gate EPROM |
US5021999A (en) * | 1987-12-17 | 1991-06-04 | Mitsubishi Denki Kabushiki Kaisha | Non-volatile semiconductor memory device with facility of storing tri-level data |
US5091326A (en) * | 1988-03-02 | 1992-02-25 | Advanced Micro Devices, Inc. | EPROM element employing self-aligning process |
US5155055A (en) * | 1988-07-15 | 1992-10-13 | Texas Instruments Incorporated | Method of making an electrically-erasable, electrically-programmable read-only memory cell with self-aligned tunnel |
US5572054A (en) * | 1990-01-22 | 1996-11-05 | Silicon Storage Technology, Inc. | Method of operating a single transistor non-volatile electrically alterable semiconductor memory device |
US5721442A (en) * | 1994-04-25 | 1998-02-24 | United Microelectronics Corporation | High density flash EPROM |
US6091104A (en) * | 1999-03-24 | 2000-07-18 | Chen; Chiou-Feng | Flash memory cell with self-aligned gates and fabrication process |
US6133098A (en) * | 1999-05-17 | 2000-10-17 | Halo Lsi Design & Device Technology, Inc. | Process for making and programming and operating a dual-bit multi-level ballistic flash memory |
CN1362736A (zh) * | 2000-09-20 | 2002-08-07 | 硅存储技术公司 | 半导体存储器阵列的自对准方法和由此制造的存储器阵列 |
CN1762048A (zh) * | 2003-03-20 | 2006-04-19 | 飞思卡尔半导体公司 | 多位非易失性存储器器件及其方法 |
-
2010
- 2010-01-12 CN CN201010022703.6A patent/CN101777519B/zh active Active
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4868629A (en) * | 1984-05-15 | 1989-09-19 | Waferscale Integration, Inc. | Self-aligned split gate EPROM |
US5021999A (en) * | 1987-12-17 | 1991-06-04 | Mitsubishi Denki Kabushiki Kaisha | Non-volatile semiconductor memory device with facility of storing tri-level data |
US5091326A (en) * | 1988-03-02 | 1992-02-25 | Advanced Micro Devices, Inc. | EPROM element employing self-aligning process |
US5155055A (en) * | 1988-07-15 | 1992-10-13 | Texas Instruments Incorporated | Method of making an electrically-erasable, electrically-programmable read-only memory cell with self-aligned tunnel |
US5572054A (en) * | 1990-01-22 | 1996-11-05 | Silicon Storage Technology, Inc. | Method of operating a single transistor non-volatile electrically alterable semiconductor memory device |
US5721442A (en) * | 1994-04-25 | 1998-02-24 | United Microelectronics Corporation | High density flash EPROM |
US6091104A (en) * | 1999-03-24 | 2000-07-18 | Chen; Chiou-Feng | Flash memory cell with self-aligned gates and fabrication process |
US6133098A (en) * | 1999-05-17 | 2000-10-17 | Halo Lsi Design & Device Technology, Inc. | Process for making and programming and operating a dual-bit multi-level ballistic flash memory |
CN1362736A (zh) * | 2000-09-20 | 2002-08-07 | 硅存储技术公司 | 半导体存储器阵列的自对准方法和由此制造的存储器阵列 |
CN1762048A (zh) * | 2003-03-20 | 2006-04-19 | 飞思卡尔半导体公司 | 多位非易失性存储器器件及其方法 |
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CN101777519A (zh) | 2010-07-14 |
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Owner name: SHANGHAI HUAHONG GRACE SEMICONDUCTOR MANUFACTURING Free format text: FORMER OWNER: HONGLI SEMICONDUCTOR MANUFACTURE CO LTD, SHANGHAI Effective date: 20140514 |
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Effective date of registration: 20140514 Address after: 201203 Shanghai Zhangjiang hi tech park Zuchongzhi Road No. 1399 Patentee after: Shanghai Huahong Grace Semiconductor Manufacturing Corporation Address before: 201203 Shanghai Guo Shou Jing Road, Zhangjiang hi tech Park No. 818 Patentee before: Hongli Semiconductor Manufacture Co., Ltd., Shanghai |