JP2007115773A - 半導体記憶装置およびその製造方法 - Google Patents
半導体記憶装置およびその製造方法 Download PDFInfo
- Publication number
- JP2007115773A JP2007115773A JP2005303387A JP2005303387A JP2007115773A JP 2007115773 A JP2007115773 A JP 2007115773A JP 2005303387 A JP2005303387 A JP 2005303387A JP 2005303387 A JP2005303387 A JP 2005303387A JP 2007115773 A JP2007115773 A JP 2007115773A
- Authority
- JP
- Japan
- Prior art keywords
- insulating film
- gate
- memory device
- semiconductor memory
- substrate
- 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.)
- Withdrawn
Links
- 239000004065 semiconductor Substances 0.000 title claims abstract description 76
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 30
- 239000000758 substrate Substances 0.000 claims abstract description 58
- 238000009792 diffusion process Methods 0.000 claims abstract description 53
- 238000000034 method Methods 0.000 claims abstract description 27
- 238000005530 etching Methods 0.000 claims description 6
- 238000005468 ion implantation Methods 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 20
- 229910052814 silicon oxide Inorganic materials 0.000 description 20
- 229920002120 photoresistant polymer Polymers 0.000 description 12
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 12
- 229920005591 polysilicon Polymers 0.000 description 12
- 229910052581 Si3N4 Inorganic materials 0.000 description 8
- 239000010410 layer Substances 0.000 description 8
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 8
- 238000000151 deposition Methods 0.000 description 6
- 239000004020 conductor Substances 0.000 description 4
- 230000005684 electric field Effects 0.000 description 4
- 244000126211 Hericium coralloides Species 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000059 patterning Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000001039 wet etching Methods 0.000 description 3
- 238000002955 isolation 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
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Images
Classifications
-
- 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
- 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
Landscapes
- Non-Volatile Memory (AREA)
- Semiconductor Memories (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005303387A JP2007115773A (ja) | 2005-10-18 | 2005-10-18 | 半導体記憶装置およびその製造方法 |
| US11/546,954 US20070085132A1 (en) | 2005-10-18 | 2006-10-13 | Semiconductor memory device and method for producing same |
| CNA2006101361869A CN1953161A (zh) | 2005-10-18 | 2006-10-13 | 半导体存储装置及其制造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005303387A JP2007115773A (ja) | 2005-10-18 | 2005-10-18 | 半導体記憶装置およびその製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2007115773A true JP2007115773A (ja) | 2007-05-10 |
| JP2007115773A5 JP2007115773A5 (enExample) | 2008-08-28 |
Family
ID=37947366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2005303387A Withdrawn JP2007115773A (ja) | 2005-10-18 | 2005-10-18 | 半導体記憶装置およびその製造方法 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20070085132A1 (enExample) |
| JP (1) | JP2007115773A (enExample) |
| CN (1) | CN1953161A (enExample) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI281753B (en) * | 2005-12-13 | 2007-05-21 | Powerchip Semiconductor Corp | Non-volatile memory and manufacturing method and operating method thereof |
| US8320191B2 (en) | 2007-08-30 | 2012-11-27 | Infineon Technologies Ag | Memory cell arrangement, method for controlling a memory cell, memory array and electronic device |
| US9761689B2 (en) * | 2014-09-12 | 2017-09-12 | Globalfoundries Inc. | Method of forming a semiconductor device and according semiconductor device |
| TWI585951B (zh) * | 2015-12-31 | 2017-06-01 | 力晶科技股份有限公司 | 記憶體結構 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5343063A (en) * | 1990-12-18 | 1994-08-30 | Sundisk Corporation | Dense vertical programmable read only memory cell structure and processes for making them |
| US5278439A (en) * | 1991-08-29 | 1994-01-11 | Ma Yueh Y | Self-aligned dual-bit split gate (DSG) flash EEPROM cell |
| ATE238609T1 (de) * | 1991-08-29 | 2003-05-15 | Hyundai Electronics Ind | Selbstjustierende flash-eeprom-zelle mit doppelbit-geteiltem gat |
| JP3710880B2 (ja) * | 1996-06-28 | 2005-10-26 | 株式会社東芝 | 不揮発性半導体記憶装置 |
| US6798012B1 (en) * | 1999-12-10 | 2004-09-28 | Yueh Yale Ma | Dual-bit double-polysilicon source-side injection flash EEPROM cell |
| JP4027656B2 (ja) * | 2001-12-10 | 2007-12-26 | シャープ株式会社 | 不揮発性半導体記憶装置及びその動作方法 |
| US7443725B2 (en) * | 2003-01-22 | 2008-10-28 | Nxp B.V. | Floating gate isolation and method of making the same |
| US6930348B2 (en) * | 2003-06-24 | 2005-08-16 | Taiwan Semiconductor Manufacturing Co., Ltd. | Dual bit split gate flash memory |
| JP2005051227A (ja) * | 2003-07-17 | 2005-02-24 | Nec Electronics Corp | 半導体記憶装置 |
| JP2005085903A (ja) * | 2003-09-05 | 2005-03-31 | Renesas Technology Corp | 半導体装置およびその製造方法 |
-
2005
- 2005-10-18 JP JP2005303387A patent/JP2007115773A/ja not_active Withdrawn
-
2006
- 2006-10-13 US US11/546,954 patent/US20070085132A1/en not_active Abandoned
- 2006-10-13 CN CNA2006101361869A patent/CN1953161A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US20070085132A1 (en) | 2007-04-19 |
| CN1953161A (zh) | 2007-04-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20080715 |
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| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20080715 |
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| A761 | Written withdrawal of application |
Free format text: JAPANESE INTERMEDIATE CODE: A761 Effective date: 20090915 |