CN102034828B - 具有垂直凸出物的浮栅结构 - Google Patents
具有垂直凸出物的浮栅结构 Download PDFInfo
- Publication number
- CN102034828B CN102034828B CN2010102873409A CN201010287340A CN102034828B CN 102034828 B CN102034828 B CN 102034828B CN 2010102873409 A CN2010102873409 A CN 2010102873409A CN 201010287340 A CN201010287340 A CN 201010287340A CN 102034828 B CN102034828 B CN 102034828B
- Authority
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- China
- Prior art keywords
- floating boom
- array
- volatile memory
- floating
- polysilicon
- 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
- 238000007667 floating Methods 0.000 title claims abstract description 140
- 239000000758 substrate Substances 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 15
- 230000008569 process Effects 0.000 claims abstract description 5
- 230000015654 memory Effects 0.000 claims description 38
- 238000001259 photo etching Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims 2
- 230000008878 coupling Effects 0.000 abstract description 10
- 238000010168 coupling process Methods 0.000 abstract description 10
- 238000005859 coupling reaction Methods 0.000 abstract description 10
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 54
- 229920005591 polysilicon Polymers 0.000 description 54
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 41
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 25
- 229910052581 Si3N4 Inorganic materials 0.000 description 17
- 239000000377 silicon dioxide Substances 0.000 description 17
- 238000003860 storage Methods 0.000 description 14
- 238000005530 etching Methods 0.000 description 13
- 229910052710 silicon Inorganic materials 0.000 description 13
- 239000010703 silicon Substances 0.000 description 13
- 230000008021 deposition Effects 0.000 description 12
- 230000006870 function Effects 0.000 description 12
- 235000012239 silicon dioxide Nutrition 0.000 description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229910021332 silicide Inorganic materials 0.000 description 5
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- NOQGZXFMHARMLW-UHFFFAOYSA-N Daminozide Chemical group CN(C)NC(=O)CCC(O)=O NOQGZXFMHARMLW-UHFFFAOYSA-N 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 3
- 229910017052 cobalt Inorganic materials 0.000 description 3
- 239000010941 cobalt Substances 0.000 description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 239000007943 implant Substances 0.000 description 3
- 238000002513 implantation Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000003491 array Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001459 lithography Methods 0.000 description 2
- 238000000059 patterning Methods 0.000 description 2
- 235000011007 phosphoric acid Nutrition 0.000 description 2
- 239000003870 refractory metal Substances 0.000 description 2
- 229910019001 CoSi Inorganic materials 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
- 230000008901 benefit Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- WQJQOUPTWCFRMM-UHFFFAOYSA-N tungsten disilicide Chemical compound [Si]#[W]#[Si] WQJQOUPTWCFRMM-UHFFFAOYSA-N 0.000 description 1
- 229910021342 tungsten silicide Inorganic materials 0.000 description 1
- 230000005641 tunneling 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
- 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
- H01L21/28—Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
- H01L21/28008—Making conductor-insulator-semiconductor electrodes
- H01L21/28017—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being silicon
- H01L21/28026—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being silicon characterised by the conductor
- H01L21/28123—Lithography-related aspects, e.g. sub-lithography lengths; Isolation-related aspects, e.g. to solve problems arising at the crossing with the side of the device isolation; Planarisation aspects
- H01L21/28141—Lithography-related aspects, e.g. sub-lithography lengths; Isolation-related aspects, e.g. to solve problems arising at the crossing with the side of the device isolation; Planarisation aspects insulating part of the electrode is defined by a sidewall spacer, e.g. dummy spacer, or a similar technique, e.g. oxidation under mask, plating
-
- 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
- H01L29/401—Multistep manufacturing processes
- H01L29/4011—Multistep manufacturing processes for data storage electrodes
- H01L29/40114—Multistep manufacturing processes for data storage electrodes the electrodes comprising a conductor-insulator-conductor-insulator-semiconductor structure
-
- 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
-
- 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
- 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)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Non-Volatile Memory (AREA)
- Semiconductor Memories (AREA)
Abstract
Description
Claims (7)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/600,259 | 2003-06-20 | ||
US10/600,259 US7105406B2 (en) | 2003-06-20 | 2003-06-20 | Self aligned non-volatile memory cell and process for fabrication |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2004800208786A Division CN101019215B (zh) | 2003-06-20 | 2004-06-09 | 具有垂直凸出物的浮栅结构 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN102034828A CN102034828A (zh) | 2011-04-27 |
CN102034828B true CN102034828B (zh) | 2012-10-17 |
Family
ID=33552149
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2010102873409A Expired - Lifetime CN102034828B (zh) | 2003-06-20 | 2004-06-09 | 具有垂直凸出物的浮栅结构 |
CN2004800208786A Expired - Lifetime CN101019215B (zh) | 2003-06-20 | 2004-06-09 | 具有垂直凸出物的浮栅结构 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2004800208786A Expired - Lifetime CN101019215B (zh) | 2003-06-20 | 2004-06-09 | 具有垂直凸出物的浮栅结构 |
Country Status (7)
Country | Link |
---|---|
US (2) | US7105406B2 (zh) |
EP (1) | EP1636834B1 (zh) |
JP (1) | JP5072357B2 (zh) |
KR (2) | KR101140151B1 (zh) |
CN (2) | CN102034828B (zh) |
TW (1) | TWI257148B (zh) |
WO (1) | WO2005001922A1 (zh) |
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
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US7105406B2 (en) * | 2003-06-20 | 2006-09-12 | Sandisk Corporation | Self aligned non-volatile memory cell and process for fabrication |
US7355237B2 (en) * | 2004-02-13 | 2008-04-08 | Sandisk Corporation | Shield plate for limiting cross coupling between floating gates |
US7183153B2 (en) * | 2004-03-12 | 2007-02-27 | Sandisk Corporation | Method of manufacturing self aligned non-volatile memory cells |
US7547945B2 (en) * | 2004-09-01 | 2009-06-16 | Micron Technology, Inc. | Transistor devices, transistor structures and semiconductor constructions |
US8022489B2 (en) * | 2005-05-20 | 2011-09-20 | Macronix International Co., Ltd. | Air tunnel floating gate memory cell |
US7282401B2 (en) | 2005-07-08 | 2007-10-16 | Micron Technology, Inc. | Method and apparatus for a self-aligned recessed access device (RAD) transistor gate |
US7867851B2 (en) * | 2005-08-30 | 2011-01-11 | Micron Technology, Inc. | Methods of forming field effect transistors on substrates |
KR100850425B1 (ko) * | 2005-09-15 | 2008-08-04 | 동부일렉트로닉스 주식회사 | 플래시 메모리 셀 및 그 제조 방법 |
US7634585B2 (en) * | 2005-11-04 | 2009-12-15 | Sandisk Corporation | In-line cache using nonvolatile memory between host and disk device |
US20070106842A1 (en) * | 2005-11-04 | 2007-05-10 | Conley Kevin M | Enhanced first level storage caching methods using nonvolatile memory |
US7374996B2 (en) | 2005-11-14 | 2008-05-20 | Charles Kuo | Structured, electrically-formed floating gate for flash memories |
US7700441B2 (en) * | 2006-02-02 | 2010-04-20 | Micron Technology, Inc. | Methods of forming field effect transistors, methods of forming field effect transistor gates, methods of forming integrated circuitry comprising a transistor gate array and circuitry peripheral to the gate array, and methods of forming integrated circuitry comprising a transistor gate array including first gates and second grounded isolation gates |
JP4762041B2 (ja) | 2006-04-24 | 2011-08-31 | 株式会社東芝 | 不揮発性半導体メモリ |
US7602001B2 (en) * | 2006-07-17 | 2009-10-13 | Micron Technology, Inc. | Capacitorless one transistor DRAM cell, integrated circuitry comprising an array of capacitorless one transistor DRAM cells, and method of forming lines of capacitorless one transistor DRAM cells |
US7755132B2 (en) * | 2006-08-16 | 2010-07-13 | Sandisk Corporation | Nonvolatile memories with shaped floating gates |
US7772632B2 (en) | 2006-08-21 | 2010-08-10 | Micron Technology, Inc. | Memory arrays and methods of fabricating memory arrays |
US7589995B2 (en) | 2006-09-07 | 2009-09-15 | Micron Technology, Inc. | One-transistor memory cell with bias gate |
WO2008036484A2 (en) * | 2006-09-21 | 2008-03-27 | Sandisk Corporation | Nonvolatile memory with reduced coupling between floating gates |
US7615445B2 (en) * | 2006-09-21 | 2009-11-10 | Sandisk Corporation | Methods of reducing coupling between floating gates in nonvolatile memory |
US20080074920A1 (en) * | 2006-09-21 | 2008-03-27 | Henry Chien | Nonvolatile Memory with Reduced Coupling Between Floating Gates |
US7773403B2 (en) * | 2007-01-15 | 2010-08-10 | Sandisk Corporation | Spacer patterns using assist layer for high density semiconductor devices |
US20080237680A1 (en) * | 2007-03-27 | 2008-10-02 | Kiran Pangal | Enabling flash cell scaling by shaping of the floating gate using spacers |
US7923373B2 (en) | 2007-06-04 | 2011-04-12 | Micron Technology, Inc. | Pitch multiplication using self-assembling materials |
KR100902591B1 (ko) | 2007-07-24 | 2009-06-11 | 주식회사 동부하이텍 | 반도체 메모리 소자의 제조 방법 |
TW200908230A (en) * | 2007-08-13 | 2009-02-16 | Nanya Technology Corp | Non-volatile memory and manufacturing method thereof |
US20090100659A1 (en) * | 2007-09-26 | 2009-04-23 | Radovan Soumar | Trailer wheel locking pin retractor |
JP2009094170A (ja) | 2007-10-04 | 2009-04-30 | Nec Electronics Corp | 不揮発性半導体メモリ及びその製造方法 |
US20090109720A1 (en) * | 2007-10-25 | 2009-04-30 | Bohumil Lojek | Memory Structure |
JP2009135373A (ja) * | 2007-12-03 | 2009-06-18 | Toshiba Corp | 不揮発性半導体記憶装置 |
JP5319107B2 (ja) * | 2007-12-20 | 2013-10-16 | スパンション エルエルシー | 半導体装置及びその製造方法 |
TWI440168B (zh) * | 2011-09-14 | 2014-06-01 | Inotera Memories Inc | 快閃記憶體結構 |
CN102881693B (zh) * | 2012-10-25 | 2017-05-24 | 上海华虹宏力半导体制造有限公司 | 存储器件及其制作方法 |
US9224746B2 (en) | 2013-05-21 | 2015-12-29 | Sandisk Technologies Inc. | Inverted-T word line and formation for non-volatile storage |
US10141194B1 (en) * | 2017-05-24 | 2018-11-27 | United Microeletronics Corp. | Manufacturing method of semiconductor structure |
CN108376682B (zh) * | 2018-01-23 | 2021-06-15 | 上海华力微电子有限公司 | 闪存 |
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- 2004-06-09 KR KR1020057024449A patent/KR101140151B1/ko not_active IP Right Cessation
- 2004-06-09 JP JP2006517221A patent/JP5072357B2/ja not_active Expired - Fee Related
- 2004-06-09 CN CN2010102873409A patent/CN102034828B/zh not_active Expired - Lifetime
- 2004-06-09 CN CN2004800208786A patent/CN101019215B/zh not_active Expired - Lifetime
- 2004-06-09 KR KR1020127003886A patent/KR101234107B1/ko active IP Right Grant
- 2004-06-09 EP EP04776457.6A patent/EP1636834B1/en not_active Expired - Lifetime
- 2004-06-18 TW TW093117838A patent/TWI257148B/zh not_active IP Right Cessation
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Also Published As
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WO2005001922A1 (en) | 2005-01-06 |
US20050003616A1 (en) | 2005-01-06 |
KR20120034794A (ko) | 2012-04-12 |
TW200509318A (en) | 2005-03-01 |
KR101140151B1 (ko) | 2012-05-02 |
EP1636834B1 (en) | 2014-02-26 |
EP1636834A1 (en) | 2006-03-22 |
WO2005001922A9 (en) | 2007-03-22 |
CN102034828A (zh) | 2011-04-27 |
US7105406B2 (en) | 2006-09-12 |
US20070076485A1 (en) | 2007-04-05 |
CN101019215A (zh) | 2007-08-15 |
JP2007521653A (ja) | 2007-08-02 |
US7504686B2 (en) | 2009-03-17 |
KR101234107B1 (ko) | 2013-02-19 |
CN101019215B (zh) | 2010-12-08 |
JP5072357B2 (ja) | 2012-11-14 |
TWI257148B (en) | 2006-06-21 |
KR20060023167A (ko) | 2006-03-13 |
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