JP5595481B2 - 選択的窒素化の方法 - Google Patents
選択的窒素化の方法 Download PDFInfo
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- JP5595481B2 JP5595481B2 JP2012503543A JP2012503543A JP5595481B2 JP 5595481 B2 JP5595481 B2 JP 5595481B2 JP 2012503543 A JP2012503543 A JP 2012503543A JP 2012503543 A JP2012503543 A JP 2012503543A JP 5595481 B2 JP5595481 B2 JP 5595481B2
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- 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
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P14/00—Formation of materials, e.g. in the shape of layers or pillars
- H10P14/60—Formation of materials, e.g. in the shape of layers or pillars of insulating materials
- H10P14/63—Formation of materials, e.g. in the shape of layers or pillars of insulating materials characterised by the formation processes
- H10P14/6302—Non-deposition formation processes
- H10P14/6316—Formation by nitridation, e.g. nitridation of the substrate
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P14/00—Formation of materials, e.g. in the shape of layers or pillars
- H10P14/60—Formation of materials, e.g. in the shape of layers or pillars of insulating materials
- H10P14/65—Formation of materials, e.g. in the shape of layers or pillars of insulating materials characterised by treatments performed before or after the formation of the materials
- H10P14/6516—Formation of materials, e.g. in the shape of layers or pillars of insulating materials characterised by treatments performed before or after the formation of the materials of treatments performed after formation of the materials
- H10P14/6518—Formation of materials, e.g. in the shape of layers or pillars of insulating materials characterised by treatments performed before or after the formation of the materials of treatments performed after formation of the materials by introduction of substances into an already-existing insulating layer
- H10P14/6519—Formation of materials, e.g. in the shape of layers or pillars of insulating materials characterised by treatments performed before or after the formation of the materials of treatments performed after formation of the materials by introduction of substances into an already-existing insulating layer the substance being oxygen
- H10P14/6522—Formation of materials, e.g. in the shape of layers or pillars of insulating materials characterised by treatments performed before or after the formation of the materials of treatments performed after formation of the materials by introduction of substances into an already-existing insulating layer the substance being oxygen introduced into a nitride material, e.g. changing SiN to SiON
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P14/00—Formation of materials, e.g. in the shape of layers or pillars
- H10P14/60—Formation of materials, e.g. in the shape of layers or pillars of insulating materials
- H10P14/65—Formation of materials, e.g. in the shape of layers or pillars of insulating materials characterised by treatments performed before or after the formation of the materials
- H10P14/6516—Formation of materials, e.g. in the shape of layers or pillars of insulating materials characterised by treatments performed before or after the formation of the materials of treatments performed after formation of the materials
- H10P14/6518—Formation of materials, e.g. in the shape of layers or pillars of insulating materials characterised by treatments performed before or after the formation of the materials of treatments performed after formation of the materials by introduction of substances into an already-existing insulating layer
- H10P14/6524—Formation of materials, e.g. in the shape of layers or pillars of insulating materials characterised by treatments performed before or after the formation of the materials of treatments performed after formation of the materials by introduction of substances into an already-existing insulating layer the substance being nitrogen
- H10P14/6526—Formation of materials, e.g. in the shape of layers or pillars of insulating materials characterised by treatments performed before or after the formation of the materials of treatments performed after formation of the materials by introduction of substances into an already-existing insulating layer the substance being nitrogen introduced into an oxide material, e.g. changing SiO to SiON
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P14/00—Formation of materials, e.g. in the shape of layers or pillars
- H10P14/60—Formation of materials, e.g. in the shape of layers or pillars of insulating materials
- H10P14/65—Formation of materials, e.g. in the shape of layers or pillars of insulating materials characterised by treatments performed before or after the formation of the materials
- H10P14/6516—Formation of materials, e.g. in the shape of layers or pillars of insulating materials characterised by treatments performed before or after the formation of the materials of treatments performed after formation of the materials
- H10P14/6529—Formation of materials, e.g. in the shape of layers or pillars of insulating materials characterised by treatments performed before or after the formation of the materials of treatments performed after formation of the materials by exposure to a gas or vapour
- H10P14/6532—Formation of materials, e.g. in the shape of layers or pillars of insulating materials characterised by treatments performed before or after the formation of the materials of treatments performed after formation of the materials by exposure to a gas or vapour by exposure to a plasma
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P14/00—Formation of materials, e.g. in the shape of layers or pillars
- H10P14/60—Formation of materials, e.g. in the shape of layers or pillars of insulating materials
- H10P14/63—Formation of materials, e.g. in the shape of layers or pillars of insulating materials characterised by the formation processes
- H10P14/6302—Non-deposition formation processes
- H10P14/6319—Formation by plasma treatments, e.g. plasma oxidation of the substrate
-
- 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
- Y10S438/911—Differential oxidation and etching
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- Semiconductor Memories (AREA)
- Non-Volatile Memory (AREA)
- Formation Of Insulating Films (AREA)
- Weting (AREA)
- Element Separation (AREA)
Description
である。典型的な窒化物部は窒化シリコン(SiN)を含む。窒素含有層208は、約0.2から5nmの間の厚さを持つ。窒素含有層208は、約1から60%の窒素含有量を持つ。
Claims (14)
- 半導体装置の形成方法であって、この方法は、
酸化物表面とシリコン表面を有する基板を供給し、
酸化物表面およびシリコン表面の共に露出した部分に窒素含有層を形成し、
酸化物表面上から窒素含有層を選択的に除去するために、窒素含有層を酸化する工程を有し、さらに、
酸化物層上から窒素含有層の一部を除去するため、窒素含有層形成後および窒素含有層の酸化以前に湿式エッチングを施すか、あるいは、
酸化物層上から残余の窒素含有種を除去するために、窒素含有層の酸化後にウエットエッチングを施すか、少なくとも一つを有する半導体装置の形成方法。 - さらに、シリコン表面上に形成された窒素含有層の残余の部分上に酸化物層を形成することからなる請求項1の方法。
- 酸化物表面は、半導体装置の1つまたはそれ以上のフローティングゲートに隣接して配置された浅いトレンチ分離領域(STI)の露出面を含み、シリコン表面は半導体装置のシリコンまたはポリシリコンのフローティングゲートの露出面である請求項1の方法。
- 窒素含有層の形成は、厚さが約0.2から約5.0ナノメーターの窒素含有層を形成することをからなる請求項1の方法。
- 窒素含有層の形成は、約1%から約60%の間の窒素含有量を持つ窒素含有層を形成することからなる請求項1の方法。
- 請求項1の方法は、さらに、
窒素含有層を酸化後、露出したシリコン表面上にインターポリ誘電体層を形成し、そして、
インターポリ誘電体層上に制御ゲート層を形成することを含む請求項1の方法。 - 窒素含有層がプラズマ窒化工程において形成される請求項1ないし6のいずれか1つに記載の方法。
- プラズマ窒化工程は、
窒素含有ガスからなるプロセスガスからプラズマを形成し、そして、
窒素含有層を形成するために、基板をプラズマに露出することを含む請求項7に記載の方法。 - 窒素含有ガスは、少なくとも、窒素(N2)またはアンモニア(NH3)のいずれか1つを有する請求項8に記載の方法。
- さらに、
窒素含有層の窒化速度あるいは窒素含有量の少なくとも1つを増加させるために、プラズマ窒化工程を実行中に基板を加熱することを含む請求項7に記載の方法。 - 窒素含有層はプラズマ酸化工程において酸化される請求項1ないし6のいずれか1つに記載の方法。
- プラズマ酸化工程は、
酸素(O2)に加えて、水素(H2)、ヘリウム(He)、あるいはアルゴン(Ar)のいずれか1種を有するプロセスガスからプラズマを形成し、そして、
窒素含有層を酸化するために、基板をプラズマに露出することを有する請求項11に記載の方法。 - 窒素含有層は、600より高く1100℃より低い温度で、熱酸化工程によって酸化されることを有する請求項1ないし6のいずれか1つに記載の方法。
- 熱酸化工程は全チャンバ圧力が20Torr未満で、水素(H2)と酸素含有ガスとを反応させることを有する請求項13に記載の方法。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US16517909P | 2009-03-31 | 2009-03-31 | |
| US61/165,179 | 2009-03-31 | ||
| PCT/US2010/028998 WO2010117703A2 (en) | 2009-03-31 | 2010-03-29 | Method of selective nitridation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2012522399A JP2012522399A (ja) | 2012-09-20 |
| JP5595481B2 true JP5595481B2 (ja) | 2014-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2012503543A Active JP5595481B2 (ja) | 2009-03-31 | 2010-03-29 | 選択的窒素化の方法 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US7972933B2 (ja) |
| JP (1) | JP5595481B2 (ja) |
| TW (1) | TWI604562B (ja) |
| WO (1) | WO2010117703A2 (ja) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8163626B2 (en) * | 2009-06-15 | 2012-04-24 | Applied Materials, Inc. | Enhancing NAND flash floating gate performance |
| EP2495762B1 (en) | 2011-03-03 | 2017-11-01 | IMEC vzw | Method for producing a floating gate semiconductor memory device |
| JP2012216667A (ja) * | 2011-03-31 | 2012-11-08 | Tokyo Electron Ltd | プラズマ処理方法 |
| US8994089B2 (en) * | 2011-11-11 | 2015-03-31 | Applied Materials, Inc. | Interlayer polysilicon dielectric cap and method of forming thereof |
| CN103633030A (zh) * | 2012-08-22 | 2014-03-12 | 上海华虹宏力半导体制造有限公司 | 改善sonos闪存器件可靠性的面内均一性的方法 |
| WO2016104292A1 (ja) * | 2014-12-25 | 2016-06-30 | 株式会社日立国際電気 | 半導体装置の製造方法、記録媒体及び基板処理装置 |
| US10510545B2 (en) | 2016-06-20 | 2019-12-17 | Applied Materials, Inc. | Hydrogenation and nitridization processes for modifying effective oxide thickness of a film |
| US10103027B2 (en) | 2016-06-20 | 2018-10-16 | Applied Materials, Inc. | Hydrogenation and nitridization processes for modifying effective oxide thickness of a film |
| US10049882B1 (en) * | 2017-01-25 | 2018-08-14 | Samsung Electronics Co., Ltd. | Method for fabricating semiconductor device including forming a dielectric layer on a structure having a height difference using ALD |
| TWI635599B (zh) * | 2017-05-31 | 2018-09-11 | 華邦電子股份有限公司 | 記憶元件的製造方法 |
| CN108987402A (zh) * | 2017-05-31 | 2018-12-11 | 华邦电子股份有限公司 | 存储元件的制造方法 |
| US10483091B1 (en) | 2018-05-18 | 2019-11-19 | International Business Machines Corporation | Selective ion filtering in a multipurpose chamber |
| US11588031B2 (en) * | 2019-12-30 | 2023-02-21 | Taiwan Semiconductor Manufacturing Company Ltd. | Semiconductor structure for memory device and method for forming the same |
| WO2021150625A1 (en) | 2020-01-23 | 2021-07-29 | Applied Materials, Inc. | Method of cleaning a structure and method of depositiing a capping layer in a structure |
Family Cites Families (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100356773B1 (ko) | 2000-02-11 | 2002-10-18 | 삼성전자 주식회사 | 플래쉬 메모리 장치 및 그 형성 방법 |
| US6620705B1 (en) * | 2000-12-06 | 2003-09-16 | Advanced Micro Devices, Inc. | Nitriding pretreatment of ONO nitride for oxide deposition |
| US7517751B2 (en) | 2001-12-18 | 2009-04-14 | Tokyo Electron Limited | Substrate treating method |
| TWI225668B (en) | 2002-05-13 | 2004-12-21 | Tokyo Electron Ltd | Substrate processing method |
| AU2003231516A1 (en) | 2002-05-16 | 2003-12-02 | Tokyo Electron Limited | Method of treating substrate |
| JP4296128B2 (ja) * | 2004-06-23 | 2009-07-15 | 株式会社東芝 | 不揮発性半導体メモリ装置及びその製造方法 |
| US7332408B2 (en) * | 2004-06-28 | 2008-02-19 | Micron Technology, Inc. | Isolation trenches for memory devices |
| US7482223B2 (en) * | 2004-12-22 | 2009-01-27 | Sandisk Corporation | Multi-thickness dielectric for semiconductor memory |
| KR100632640B1 (ko) * | 2005-03-10 | 2006-10-12 | 주식회사 하이닉스반도체 | 플래쉬 메모리 소자의 제조방법 |
| US7294581B2 (en) | 2005-10-17 | 2007-11-13 | Applied Materials, Inc. | Method for fabricating silicon nitride spacer structures |
| US7888217B2 (en) | 2005-10-20 | 2011-02-15 | Applied Materials, Inc. | Method for fabricating a gate dielectric of a field effect transistor |
| US7416995B2 (en) | 2005-11-12 | 2008-08-26 | Applied Materials, Inc. | Method for fabricating controlled stress silicon nitride films |
| US7465669B2 (en) | 2005-11-12 | 2008-12-16 | Applied Materials, Inc. | Method of fabricating a silicon nitride stack |
| US7387972B2 (en) * | 2006-03-01 | 2008-06-17 | Promos Technologies Pte. Ltd. | Reducing nitrogen concentration with in-situ steam generation |
| KR100806130B1 (ko) * | 2006-07-12 | 2008-02-22 | 삼성전자주식회사 | 불휘발성 메모리 장치의 제조방법 |
| US20080179715A1 (en) * | 2007-01-30 | 2008-07-31 | Micron Technology, Inc. | Shallow trench isolation using atomic layer deposition during fabrication of a semiconductor device |
| US7910446B2 (en) * | 2007-07-16 | 2011-03-22 | Applied Materials, Inc. | Integrated scheme for forming inter-poly dielectrics for non-volatile memory devices |
| US7910497B2 (en) | 2007-07-30 | 2011-03-22 | Applied Materials, Inc. | Method of forming dielectric layers on a substrate and apparatus therefor |
| US7645709B2 (en) | 2007-07-30 | 2010-01-12 | Applied Materials, Inc. | Methods for low temperature oxidation of a semiconductor device |
| US7749849B2 (en) * | 2007-12-18 | 2010-07-06 | Micron Technology, Inc. | Methods of selectively oxidizing semiconductor structures, and structures resulting therefrom |
| WO2009114617A1 (en) | 2008-03-14 | 2009-09-17 | Applied Materials, Inc. | Methods for oxidation of a semiconductor device |
| US8871645B2 (en) | 2008-09-11 | 2014-10-28 | Applied Materials, Inc. | Semiconductor devices suitable for narrow pitch applications and methods of fabrication thereof |
| JP5361328B2 (ja) * | 2008-10-27 | 2013-12-04 | 株式会社東芝 | 不揮発性半導体記憶装置の製造方法 |
| US8163626B2 (en) * | 2009-06-15 | 2012-04-24 | Applied Materials, Inc. | Enhancing NAND flash floating gate performance |
-
2010
- 2010-03-29 JP JP2012503543A patent/JP5595481B2/ja active Active
- 2010-03-29 US US12/748,523 patent/US7972933B2/en active Active
- 2010-03-29 WO PCT/US2010/028998 patent/WO2010117703A2/en not_active Ceased
- 2010-03-31 TW TW099109958A patent/TWI604562B/zh active
Also Published As
| Publication number | Publication date |
|---|---|
| TW201036108A (en) | 2010-10-01 |
| TWI604562B (zh) | 2017-11-01 |
| US7972933B2 (en) | 2011-07-05 |
| JP2012522399A (ja) | 2012-09-20 |
| WO2010117703A3 (en) | 2011-01-13 |
| US20100248435A1 (en) | 2010-09-30 |
| WO2010117703A2 (en) | 2010-10-14 |
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