JP5073934B2 - 半導体装置の製造方法 - Google Patents
半導体装置の製造方法 Download PDFInfo
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- JP5073934B2 JP5073934B2 JP2005293477A JP2005293477A JP5073934B2 JP 5073934 B2 JP5073934 B2 JP 5073934B2 JP 2005293477 A JP2005293477 A JP 2005293477A JP 2005293477 A JP2005293477 A JP 2005293477A JP 5073934 B2 JP5073934 B2 JP 5073934B2
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- insulating film
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- floating gate
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- 239000004065 semiconductor Substances 0.000 title claims description 53
- 238000004519 manufacturing process Methods 0.000 title claims description 26
- 230000015654 memory Effects 0.000 claims description 51
- 239000000758 substrate Substances 0.000 claims description 29
- 230000015572 biosynthetic process Effects 0.000 claims description 24
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 22
- 230000003647 oxidation Effects 0.000 claims description 22
- 238000007254 oxidation reaction Methods 0.000 claims description 22
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 16
- 230000001590 oxidative effect Effects 0.000 claims description 3
- 239000010408 film Substances 0.000 description 178
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 17
- 229920005591 polysilicon Polymers 0.000 description 17
- 238000005530 etching Methods 0.000 description 10
- 239000010410 layer Substances 0.000 description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 230000015556 catabolic process Effects 0.000 description 8
- 229920002120 photoresistant polymer Polymers 0.000 description 8
- 238000002513 implantation Methods 0.000 description 6
- 229910052814 silicon oxide Inorganic materials 0.000 description 6
- -1 phosphorus ions Chemical class 0.000 description 5
- 230000005641 tunneling Effects 0.000 description 5
- 238000005229 chemical vapour deposition Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 3
- 239000002784 hot electron Substances 0.000 description 3
- 230000007257 malfunction Effects 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 229910052785 arsenic Inorganic materials 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000005468 ion implantation Methods 0.000 description 2
- 238000000059 patterning Methods 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 230000005689 Fowler Nordheim tunneling Effects 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
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
- H10B41/40—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates characterised by the peripheral circuit region
-
- 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
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/788—Field effect transistors with field effect produced by an insulated gate with floating gate
- H01L29/7881—Programmable transistors with only two possible levels of programmation
- H01L29/7883—Programmable transistors with only two possible levels of programmation charging by tunnelling of carriers, e.g. Fowler-Nordheim tunnelling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/04—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body
- H01L27/10—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including a plurality of individual components in a repetitive configuration
- H01L27/105—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including a plurality of individual components in a repetitive configuration including field-effect components
-
- 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
- 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
- H10B41/40—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates characterised by the peripheral circuit region
- H10B41/42—Simultaneous manufacture of periphery and memory cells
- H10B41/43—Simultaneous manufacture of periphery and memory cells comprising only one type of peripheral transistor
- H10B41/44—Simultaneous manufacture of periphery and memory cells comprising only one type of peripheral transistor with a control gate layer also being used as part of the peripheral transistor
-
- 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
- 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
- H01L21/823456—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 gate conductors with different shapes, lengths or dimensions
-
- 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
- H01L21/823462—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type with a particular manufacturing method of the gate insulating layers, e.g. different gate insulating layer thicknesses, particular gate insulator materials or particular gate insulator implants
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (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)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
Description
ができるものである。
このようにメモリトランジスタ200では、フローティングゲート7に電荷量が蓄積されているか否かによって、2値又はそれ以上の多値のデジタルデータを記憶し、かつ、その電荷量に応じたチャネル領域の導通の変化を検知することで、デジタルデータを読み出すことができる。
4 ポリシリコン膜 5 窒化シリコン膜 6 選択酸化絶縁膜
7 フローティングゲート 7a 先鋭部
8 ゲート絶縁膜(メモリトランジスタ) 9 絶縁膜(第2の絶縁膜)
10 窒化シリコン膜 11 ホトレジスト層
12 ゲート絶縁膜(MOSトランジスタ) 13 側壁絶縁膜
14 ポリシリコン膜 15 コントロールゲート 16 ゲート電極
20 トンネル絶縁膜 21 ソース領域 22 ドレイン領域
30 低濃度のドレイン領域 31 低濃度のソース領域
32 高濃度のドレイン領域 33 高濃度のソース領域 50 P型ウェル
100 メモリトランジスタ 101 P型半導体基板 102 ドレイン領域
103 ソース領域 104 チャネル領域 105 ゲート絶縁膜
106 フローティングゲート 107 厚い酸化シリコン膜
108 トンネル絶縁膜 109 コントロールゲート
200 メモリトランジスタ 300 MOSトランジスタ
Claims (3)
- フローティングゲートと、前記フローティングゲートを被覆するように形成されたトンネル絶縁膜と、前記トンネル絶縁膜を介してフローティングゲート上に形成されたコントロールゲートとを備えた不揮発性メモリトランジスタと、
少なくとも一つのMOSトランジスタとを同一半導体基板上に備える半導体装置の製造方法において、
前記半導体基板上に前記トンネル絶縁膜と、前記MOSトランジスタのゲート絶縁膜とを同時に形成する工程と、
前記トンネル絶縁膜及び前記ゲート絶縁膜上に耐酸化膜を形成する工程と、
前記MOSトランジスタの形成領域に形成された前記耐酸化膜を除去すると共に前記ゲート絶縁膜を除去せずに残す工程と、
前記不揮発性メモリセルの形成領域に残された前記耐酸化膜をマスクとして、前記MOSトランジスタの形成領域を選択酸化することにより前記ゲート絶縁膜を前記トンネル絶縁膜よりも厚くする工程とを有することを特徴とする半導体装置の製造方法。 - 前記選択酸化後に、前記耐酸化膜のうち、前記フローティングゲートの下部近傍の前記トンネル絶縁膜を被覆する部分のみを残膜させる工程を有することを特徴とする請求項1に記載の半導体装置の製造方法。
- 前記耐酸化膜は窒化シリコン膜であることを特徴とする請求項1または請求項2に記載の半導体装置の製造方法。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005293477A JP5073934B2 (ja) | 2005-10-06 | 2005-10-06 | 半導体装置の製造方法 |
TW095134724A TWI323936B (en) | 2005-10-06 | 2006-09-20 | Method for making semiconductor device |
CNA2006101317118A CN1945809A (zh) | 2005-10-06 | 2006-09-29 | 半导体装置的制造方法 |
KR1020060096972A KR100777525B1 (ko) | 2005-10-06 | 2006-10-02 | 반도체 장치의 제조 방법 |
US11/543,982 US7361553B2 (en) | 2005-10-06 | 2006-10-06 | Semiconductor device manufacturing method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005293477A JP5073934B2 (ja) | 2005-10-06 | 2005-10-06 | 半導体装置の製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007103771A JP2007103771A (ja) | 2007-04-19 |
JP5073934B2 true JP5073934B2 (ja) | 2012-11-14 |
Family
ID=37945330
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005293477A Active JP5073934B2 (ja) | 2005-10-06 | 2005-10-06 | 半導体装置の製造方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7361553B2 (ja) |
JP (1) | JP5073934B2 (ja) |
KR (1) | KR100777525B1 (ja) |
CN (1) | CN1945809A (ja) |
TW (1) | TWI323936B (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8202778B2 (en) * | 2010-08-31 | 2012-06-19 | Freescale Semiconductor, Inc. | Patterning a gate stack of a non-volatile memory (NVM) with simultaneous etch in non-NVM area |
US9842845B1 (en) * | 2016-10-28 | 2017-12-12 | Globalfoundries Inc. | Method of forming a semiconductor device structure and semiconductor device structure |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03227573A (ja) * | 1990-02-01 | 1991-10-08 | Matsushita Electron Corp | 半導体記憶装置の製造方法 |
JP3461107B2 (ja) | 1997-07-09 | 2003-10-27 | 三洋電機株式会社 | 半導体集積回路の製造方法 |
JP3556079B2 (ja) | 1997-10-02 | 2004-08-18 | 旭化成マイクロシステム株式会社 | 半導体装置の製造方法 |
JP3398040B2 (ja) * | 1998-03-27 | 2003-04-21 | 三洋電機株式会社 | 不揮発性半導体記憶装置とその製造方法 |
KR100268894B1 (ko) * | 1998-09-29 | 2000-10-16 | 김영환 | 플래쉬 메모리 소자의 제조방법 |
JP2001060674A (ja) * | 1999-08-20 | 2001-03-06 | Seiko Epson Corp | 不揮発性メモリトランジスタを含む半導体装置 |
JP2002064156A (ja) | 2000-06-09 | 2002-02-28 | Sanyo Electric Co Ltd | 半導体装置の製造方法 |
JP3922341B2 (ja) * | 2001-01-11 | 2007-05-30 | セイコーエプソン株式会社 | 不揮発性メモリトランジスタを有する半導体装置の製造方法 |
KR100505714B1 (ko) * | 2003-11-26 | 2005-08-03 | 삼성전자주식회사 | 스플릿 게이트형 플래쉬 메모리 장치의 제조 방법 |
KR100718253B1 (ko) * | 2005-08-17 | 2007-05-16 | 삼성전자주식회사 | 불휘발성 메모리 장치의 제조 방법 |
-
2005
- 2005-10-06 JP JP2005293477A patent/JP5073934B2/ja active Active
-
2006
- 2006-09-20 TW TW095134724A patent/TWI323936B/zh not_active IP Right Cessation
- 2006-09-29 CN CNA2006101317118A patent/CN1945809A/zh active Pending
- 2006-10-02 KR KR1020060096972A patent/KR100777525B1/ko not_active IP Right Cessation
- 2006-10-06 US US11/543,982 patent/US7361553B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
KR100777525B1 (ko) | 2007-11-16 |
KR20070038885A (ko) | 2007-04-11 |
CN1945809A (zh) | 2007-04-11 |
TWI323936B (en) | 2010-04-21 |
US7361553B2 (en) | 2008-04-22 |
TW200746394A (en) | 2007-12-16 |
US20070082452A1 (en) | 2007-04-12 |
JP2007103771A (ja) | 2007-04-19 |
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