JP2005197724A - 量子点を用いた非揮発性メモリーの製造方法 - Google Patents
量子点を用いた非揮発性メモリーの製造方法 Download PDFInfo
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- JP2005197724A JP2005197724A JP2004380315A JP2004380315A JP2005197724A JP 2005197724 A JP2005197724 A JP 2005197724A JP 2004380315 A JP2004380315 A JP 2004380315A JP 2004380315 A JP2004380315 A JP 2004380315A JP 2005197724 A JP2005197724 A JP 2005197724A
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- 239000002096 quantum dot Substances 0.000 title claims abstract description 51
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 31
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 16
- 239000000758 substrate Substances 0.000 claims abstract description 14
- 238000005530 etching Methods 0.000 claims abstract description 9
- 239000004020 conductor Substances 0.000 claims abstract description 6
- 238000000151 deposition Methods 0.000 claims description 7
- 230000003647 oxidation Effects 0.000 claims description 4
- 238000007254 oxidation reaction Methods 0.000 claims description 4
- 150000004767 nitrides Chemical class 0.000 claims description 3
- 238000000059 patterning Methods 0.000 claims description 3
- 230000008021 deposition Effects 0.000 abstract 1
- 239000010408 film Substances 0.000 description 32
- 239000004065 semiconductor Substances 0.000 description 4
- 238000010894 electron beam technology Methods 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 238000000231 atomic layer deposition Methods 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 238000010884 ion-beam technique Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- VMSRVIHUFHQIAL-UHFFFAOYSA-M sodium;n,n-dimethylcarbamodithioate Chemical compound [Na+].CN(C)C([S-])=S VMSRVIHUFHQIAL-UHFFFAOYSA-M 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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- 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
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y10/00—Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
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- 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
- H01L29/42332—Gate electrodes for transistors with a floating gate with the floating gate formed by two or more non connected parts, e.g. multi-particles flating 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
- H01L29/66439—Unipolar field-effect transistors with a one- or zero-dimensional channel, e.g. quantum wire FET, in-plane gate transistor [IPG], single electron transistor [SET], striped channel transistor, Coulomb blockade transistor
-
- 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
- H01L29/7888—Transistors programmable by two single electrons
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S438/00—Semiconductor device manufacturing: process
- Y10S438/962—Quantum dots and lines
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- Computer Hardware Design (AREA)
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- Condensed Matter Physics & Semiconductors (AREA)
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- Semiconductor Memories (AREA)
- Non-Volatile Memory (AREA)
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Abstract
【解決手段】本発明の量子点を用いた非揮発性メモリーの製造方法は所定の素子が形成された基板の上に第1絶縁膜及び第2絶縁膜を順次で形成する段階と、前記第2絶縁膜を蝕刻してハードマスクを形成する段階と、前記ハードマスクが形成された基板の上にシリコーンを蒸着する段階と、前記シリコーンをエチバックに蝕刻して量子点を形成する段階と、前記ハードマスクをとり除く段階と、前記量子点が形成された基板に第3絶縁膜を形成する段階と、前記第3絶縁膜の上に導電体を蒸着してパターン処理してゲートを形成する段階とを含んで成り立つに技術的特徴がある。
【選択図】図8
Description
図1乃至図8は本発明によるメモリー製造工程の断面図である。
先ず、図1は所定の素子が形成された基板の上に第1絶縁膜及び第2絶縁膜を順次で形成する段階の断面図である。図に示すように所定の素子が形成された基板(10)上に第1絶縁膜(11)及び第2絶縁膜(12)を順次で形成する。この時、前記第1絶縁膜は熱酸化を用いた酸化膜が望ましくて、第2絶縁膜は窒化物を蒸着することが望ましい。この時、前記第2絶縁膜の厚さは100Å乃至500Åが適当である。
11 第1絶縁膜
12 第2絶縁膜
12a ハードマスク
13 シリコーン
14 量子点
15 第3絶縁膜
16a ゲート
16b ゲート
Claims (6)
- 所定の素子が形成された基板の上に第1絶縁膜及び第2絶縁膜を順次で形成する段階と;
前記第2絶縁膜を蝕刻してハードマスクを形成する段階と;
前記ハードマスクが形成された基板の上にシリコーンを蒸着する段階と;
前記シリコーンをエチバックに蝕刻して量子点を形成する段階と;
前記ハードマスクをとり除く段階と;
前記量子点が形成された基板に第3絶縁膜を形成する段階と;及び
前記第3絶縁膜の上に導電体を蒸着し、パターン処理してゲートを形成する段階と;
を含むことを特徴とする量子点を用いた非揮発性メモリーの製造方法。 - 前記第1絶縁膜は酸化膜であることを特徴とする請求項1に記載の量子点を用いた非揮発性メモリーの製造方法。
- 前記第2絶縁膜は窒化膜であることを特徴とする請求項1又は2に記載の量子点を用いた非揮発性メモリーの製造方法。
- 前記第2絶縁膜は100Å乃至500Åの厚さに形成されることを特徴とする請求項1乃至3の何れかに記載の量子点を用いた非揮発性メモリーの製造方法。
- 前記シリコーンは10Å乃至200Åの厚さに形成されることを特徴とする請求項1乃至4の何れかに記載の量子点を用いた非揮発性メモリーの製造方法。
- 前記第3絶縁膜は熱酸化工程で前記量子点を覆う酸化膜を形成することを特徴とする請求項1乃至5の何れかに記載の非揮発性メモリーの製造方法。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2003-0101443A KR100526480B1 (ko) | 2003-12-31 | 2003-12-31 | 양자점을 이용한 비휘발성 메모리 제조 방법 |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2005197724A true JP2005197724A (ja) | 2005-07-21 |
Family
ID=34698879
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004380315A Pending JP2005197724A (ja) | 2003-12-31 | 2004-12-28 | 量子点を用いた非揮発性メモリーの製造方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7338858B2 (ja) |
JP (1) | JP2005197724A (ja) |
KR (1) | KR100526480B1 (ja) |
DE (1) | DE102004063404A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100712543B1 (ko) * | 2005-12-31 | 2007-04-30 | 삼성전자주식회사 | 다중채널을 갖는 반도체소자 및 그 제조방법 |
EP2253019B1 (en) * | 2008-03-11 | 2013-02-20 | STMicroelectronics (Crolles 2) SAS | Quantum-dot device and position-controlled quantum-dot-fabrication method |
EP2308111B1 (en) | 2008-06-17 | 2021-04-28 | National Research Council Of Canada | Atomistic quantum dots |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6182470A (ja) * | 1984-07-02 | 1986-04-26 | テキサス インスツルメンツ インコ−ポレイテツド | 量子ウエル装置の製造方法 |
JPH1140809A (ja) * | 1997-05-21 | 1999-02-12 | Toshiba Corp | 半導体装置およびその製造方法 |
JPH1197667A (ja) * | 1997-09-24 | 1999-04-09 | Sharp Corp | 超微粒子あるいは超細線の形成方法およびこの形成方法による超微粒子あるいは超細線を用いた半導体素子 |
JPH11150261A (ja) * | 1997-11-19 | 1999-06-02 | Toshiba Corp | 電子機能素子 |
US6124192A (en) * | 1999-09-27 | 2000-09-26 | Vanguard International Semicondutor Corporation | Method for fabricating ultra-small interconnections using simplified patterns and sidewall contact plugs |
JP2002170892A (ja) * | 2000-11-30 | 2002-06-14 | Univ Nagoya | 積層型ゲート酸化膜構造の製造方法 |
US20020130356A1 (en) * | 2000-02-01 | 2002-09-19 | Taiwan Semiconductor Manufacturing Company | Novel split gate flash cell for multiple storage |
JP2005197701A (ja) * | 2003-12-31 | 2005-07-21 | Anam Semiconductor Inc | シリコン量子ドットの形成方法及びこれを利用した半導体メモリ素子の製造方法 |
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US4581621A (en) | 1984-07-02 | 1986-04-08 | Texas Instruments Incorporated | Quantum device output switch |
GB9125727D0 (en) | 1991-12-03 | 1992-01-29 | Hitachi Europ Ltd | Non-linear optical device |
JPH0786615A (ja) | 1993-09-14 | 1995-03-31 | Fujitsu Ltd | 半導体量子ドット装置 |
US6093945A (en) | 1998-07-09 | 2000-07-25 | Windbond Electronics Corp. | Split gate flash memory with minimum over-erase problem |
JP3869572B2 (ja) * | 1999-02-10 | 2007-01-17 | シャープ株式会社 | 量子細線の製造方法 |
JP3602010B2 (ja) * | 1999-08-02 | 2004-12-15 | シャープ株式会社 | 半導体記憶装置の製造方法 |
US6420902B1 (en) | 2000-05-31 | 2002-07-16 | Micron Technology, Inc. | Field programmable logic arrays with transistors with vertical gates |
US6531731B2 (en) * | 2001-06-15 | 2003-03-11 | Motorola, Inc. | Integration of two memory types on the same integrated circuit |
KR100459895B1 (ko) | 2002-02-09 | 2004-12-04 | 삼성전자주식회사 | 퀀텀 도트를 가지는 메모리 소자 및 그 제조방법 |
KR100486607B1 (ko) * | 2002-09-17 | 2005-05-03 | 주식회사 하이닉스반도체 | 양자점 형성 방법 |
-
2003
- 2003-12-31 KR KR10-2003-0101443A patent/KR100526480B1/ko not_active IP Right Cessation
-
2004
- 2004-12-23 DE DE102004063404A patent/DE102004063404A1/de not_active Ceased
- 2004-12-28 JP JP2004380315A patent/JP2005197724A/ja active Pending
- 2004-12-30 US US11/026,715 patent/US7338858B2/en active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6182470A (ja) * | 1984-07-02 | 1986-04-26 | テキサス インスツルメンツ インコ−ポレイテツド | 量子ウエル装置の製造方法 |
JPH1140809A (ja) * | 1997-05-21 | 1999-02-12 | Toshiba Corp | 半導体装置およびその製造方法 |
JPH1197667A (ja) * | 1997-09-24 | 1999-04-09 | Sharp Corp | 超微粒子あるいは超細線の形成方法およびこの形成方法による超微粒子あるいは超細線を用いた半導体素子 |
JPH11150261A (ja) * | 1997-11-19 | 1999-06-02 | Toshiba Corp | 電子機能素子 |
US6124192A (en) * | 1999-09-27 | 2000-09-26 | Vanguard International Semicondutor Corporation | Method for fabricating ultra-small interconnections using simplified patterns and sidewall contact plugs |
US20020130356A1 (en) * | 2000-02-01 | 2002-09-19 | Taiwan Semiconductor Manufacturing Company | Novel split gate flash cell for multiple storage |
JP2002170892A (ja) * | 2000-11-30 | 2002-06-14 | Univ Nagoya | 積層型ゲート酸化膜構造の製造方法 |
JP2005197701A (ja) * | 2003-12-31 | 2005-07-21 | Anam Semiconductor Inc | シリコン量子ドットの形成方法及びこれを利用した半導体メモリ素子の製造方法 |
Also Published As
Publication number | Publication date |
---|---|
US20050142721A1 (en) | 2005-06-30 |
DE102004063404A1 (de) | 2005-12-01 |
US7338858B2 (en) | 2008-03-04 |
KR20050070886A (ko) | 2005-07-07 |
KR100526480B1 (ko) | 2005-11-08 |
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