JP2015018885A - プラズマエッチング方法 - Google Patents
プラズマエッチング方法 Download PDFInfo
- Publication number
- JP2015018885A JP2015018885A JP2013144118A JP2013144118A JP2015018885A JP 2015018885 A JP2015018885 A JP 2015018885A JP 2013144118 A JP2013144118 A JP 2013144118A JP 2013144118 A JP2013144118 A JP 2013144118A JP 2015018885 A JP2015018885 A JP 2015018885A
- Authority
- JP
- Japan
- Prior art keywords
- film
- gas
- etching
- magnetic film
- plasma etching
- 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.)
- Pending
Links
Classifications
-
- 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 at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
- H01L21/3065—Plasma etching; Reactive-ion etching
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F4/00—Processes for removing metallic material from surfaces, not provided for in group C23F1/00 or C23F3/00
-
- 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
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76801—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing
- H01L21/76822—Modification of the material of dielectric layers, e.g. grading, after-treatment to improve the stability of the layers, to increase their density etc.
- H01L21/76825—Modification of the material of dielectric layers, e.g. grading, after-treatment to improve the stability of the layers, to increase their density etc. by exposing the layer to particle radiation, e.g. ion implantation, irradiation with UV light or electrons etc.
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N50/00—Galvanomagnetic devices
- H10N50/01—Manufacture or treatment
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- General Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Plasma & Fusion (AREA)
- Hall/Mr Elements (AREA)
- Drying Of Semiconductors (AREA)
- Mram Or Spin Memory Techniques (AREA)
Abstract
Description
1b 第二のアンテナ
2 真空容器
3 ベルジャ
4 試料
5 試料台
6 プラズマ
7 試料保持部
8 カバー
9 ファラデーシールド
10 整合器
11 第一の高周波電源
12 ガス供給源
13 排気装置
14 第二の高周波電源
15 MTJ素子構成膜
16 ハードマスク
17 第二の金属膜
18 第二の磁性膜
19 金属酸化膜
20 第一の磁性膜
21 非磁性層
22 強磁性層
23 反強磁性交換バイアス層
24 第一の金属膜
25 シリコン酸化膜
26 第一の反応生成物
27 第二の反応生成物
Claims (7)
- 第一の磁性膜と、前記第一の磁性膜の上方に配置された第二の磁性膜と、前記第一の磁性膜と前記第二の磁性膜の間に配置された金属酸化膜と、前記第二の磁性膜の上方に配置され上部電極となる第二の金属膜と、前記第一の磁性膜の下方に配置され下部電極となる第一の金属膜とを有する試料をプラズマエッチングするプラズマエッチング方法において、
一酸化炭素ガスを用いて前記第一の磁性膜と前記金属酸化膜と前記第二の磁性膜をエッチングする第一の工程と、
前記第一の工程後、前記試料を水素ガスと不活性ガスの混合ガスを用いてエッチングする第二の工程とを有し、
前記第一の金属膜は、タンタルを含有する膜であることを特徴とするプラズマエッチング方法。 - 請求項1に記載のプラズマエッチング方法において、
前記第一の工程は、第一のエッチング工程と前記第一のエッチング工程後に行われる第二のエッチング工程を有し、
前記第二のエッチング工程のバイアスRF電力は、前記第一のエッチング工程のバイアスRF電力より小さいことを特徴とするプラズマエッチング方法。 - 請求項1に記載のプラズマエッチング方法において、
前記第一の工程前に四フッ化メタンガスとアルゴンガスの混合ガスを用いて前記第二の金属膜をエッチングすることを特徴とするプラズマエッチング方法。 - 請求項3に記載のプラズマエッチング方法において、
前記第一の工程は、さらにアンモニアガスを用い、
前記第二の金属膜は、タンタルを含有する膜であり、
前記不活性ガスは、アルゴンガスであることを特徴とするプラズマエッチング方法。 - 請求項1に記載のプラズマエッチング方法において、
前記第一の工程と前記第二の工程は同一の処理室で行われることを特徴とするプラズマエッチング方法。 - 請求項1に記載のプラズマエッチング方法において、
前記第一の工程から前記第二の工程への移行は、プラズマを継続した状態で行われることを特徴とするプラズマエッチング方法。 - 第一の磁性膜と、前記第一の磁性膜の上方に配置された第二の磁性膜と、前記第一の磁性膜と前記第二の磁性膜の間に配置された金属酸化膜と、前記第二の磁性膜の上方に配置され上部電極となる第二の金属膜と、前記第一の磁性膜の下方に配置され下部電極となる第一の金属膜とを有する試料をプラズマエッチングするプラズマエッチング方法において、
一酸化炭素ガスを用いて前記第一の磁性膜と前記金属酸化膜と前記第二の磁性膜をエッチングするエッチング工程を有し、
前記第一の金属膜は、タンタルを含有する膜であり、
前記エッチング工程は、第一の工程と前記第一の工程後に行われる第二の工程を有し、
前記第二の工程のバイアスRF電力は、前記第一の工程のバイアスRF電力より小さいことを特徴とするプラズマエッチング方法。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013144118A JP2015018885A (ja) | 2013-07-10 | 2013-07-10 | プラズマエッチング方法 |
TW103100650A TW201503257A (zh) | 2013-07-10 | 2014-01-08 | 電漿蝕刻方法 |
KR1020140013015A KR101578077B1 (ko) | 2013-07-10 | 2014-02-05 | 플라즈마 에칭 방법 |
US14/181,537 US9269892B2 (en) | 2013-07-10 | 2014-02-14 | Plasma etching method |
US14/995,897 US9680090B2 (en) | 2013-07-10 | 2016-01-14 | Plasma etching method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013144118A JP2015018885A (ja) | 2013-07-10 | 2013-07-10 | プラズマエッチング方法 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2017158982A Division JP6368837B2 (ja) | 2017-08-22 | 2017-08-22 | プラズマエッチング方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2015018885A true JP2015018885A (ja) | 2015-01-29 |
JP2015018885A5 JP2015018885A5 (ja) | 2016-04-28 |
Family
ID=52277394
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2013144118A Pending JP2015018885A (ja) | 2013-07-10 | 2013-07-10 | プラズマエッチング方法 |
Country Status (4)
Country | Link |
---|---|
US (2) | US9269892B2 (ja) |
JP (1) | JP2015018885A (ja) |
KR (1) | KR101578077B1 (ja) |
TW (1) | TW201503257A (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016164955A (ja) * | 2015-03-06 | 2016-09-08 | ルネサスエレクトロニクス株式会社 | 半導体装置およびその製造方法 |
WO2018131215A1 (ja) * | 2017-09-21 | 2018-07-19 | 株式会社日立ハイテクノロジーズ | 磁気トンネル接合素子の製造方法および誘導結合型プラズマ処理装置 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6227483B2 (ja) * | 2014-05-30 | 2017-11-08 | 株式会社日立ハイテクノロジーズ | プラズマ処理方法 |
US20160072055A1 (en) * | 2014-09-08 | 2016-03-10 | Satoshi Seto | Manufacturing method of semiconductor memory device |
KR102409755B1 (ko) | 2015-09-30 | 2022-06-16 | 삼성전자주식회사 | 자기 저항 메모리 소자 및 그 제조 방법 |
KR102615694B1 (ko) | 2016-11-02 | 2023-12-21 | 삼성전자주식회사 | 정보 저장 소자 및 그 제조방법 |
US10522749B2 (en) * | 2017-05-15 | 2019-12-31 | Taiwan Semiconductor Manufacturing Company, Ltd. | Combined physical and chemical etch to reduce magnetic tunnel junction (MTJ) sidewall damage |
US10497567B2 (en) * | 2017-08-07 | 2019-12-03 | Applied Materials, Inc. | Method of enhanced selectivity of hard mask using plasma treatments |
CN109994476B (zh) * | 2017-12-29 | 2021-03-16 | 上海磁宇信息科技有限公司 | 一种制备磁性随机存储器阵列单元的方法 |
CN117223091A (zh) * | 2022-04-11 | 2023-12-12 | 株式会社日立高新技术 | 等离子处理方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006278456A (ja) * | 2005-03-28 | 2006-10-12 | Ulvac Japan Ltd | トンネル接合素子のエッチング加工方法 |
JP2008065944A (ja) * | 2006-09-08 | 2008-03-21 | Ulvac Japan Ltd | 磁性層パターンの形成方法、磁気抵抗素子の製造方法、及び磁気記憶媒体の製造方法 |
US20120276657A1 (en) * | 2011-04-27 | 2012-11-01 | Olivier Joubert | Method of patterning of magnetic tunnel junctions |
WO2012176747A1 (ja) * | 2011-06-24 | 2012-12-27 | キヤノンアネルバ株式会社 | 機能素子の製造方法 |
JP2013051227A (ja) * | 2011-08-30 | 2013-03-14 | Hitachi High-Technologies Corp | プラズマエッチング方法 |
US20130149499A1 (en) * | 2011-12-07 | 2013-06-13 | Hak-sun Lee | Magnetic devices and methods of manufacturing the same |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6893893B2 (en) * | 2002-03-19 | 2005-05-17 | Applied Materials Inc | Method of preventing short circuits in magnetic film stacks |
US6911346B2 (en) * | 2002-04-03 | 2005-06-28 | Applied Materials, Inc. | Method of etching a magnetic material |
US7115517B2 (en) * | 2003-04-07 | 2006-10-03 | Applied Materials, Inc. | Method of fabricating a dual damascene interconnect structure |
JP2004356179A (ja) | 2003-05-27 | 2004-12-16 | Sony Corp | ドライエッチング方法及びその装置 |
JP2005079258A (ja) * | 2003-08-29 | 2005-03-24 | Canon Inc | 磁性体のエッチング加工方法、磁気抵抗効果膜、および磁気ランダムアクセスメモリ |
KR100814901B1 (ko) * | 2007-05-22 | 2008-03-19 | 한국전자통신연구원 | 건식 식각 공정을 이용한 산화물 박막 트랜지스터 소자의제조방법 |
US7948044B2 (en) * | 2008-04-09 | 2011-05-24 | Magic Technologies, Inc. | Low switching current MTJ element for ultra-high STT-RAM and a method for making the same |
KR20120058113A (ko) | 2010-11-29 | 2012-06-07 | 삼성전자주식회사 | 자기 터널 접합 구조체의 제조 방법 및 이를 이용하는 자기 메모리 소자의 제조 방법 |
KR101950004B1 (ko) * | 2012-03-09 | 2019-02-19 | 삼성전자 주식회사 | 자기 소자 |
JP5883772B2 (ja) * | 2012-11-27 | 2016-03-15 | 株式会社日立ハイテクノロジーズ | プラズマ処理方法 |
JP6208017B2 (ja) * | 2014-01-07 | 2017-10-04 | 株式会社日立ハイテクノロジーズ | プラズマエッチング方法 |
US9390923B2 (en) * | 2014-07-03 | 2016-07-12 | Applied Materials, Inc. | Methods of removing residual polymers formed during a boron-doped amorphous carbon layer etch process |
-
2013
- 2013-07-10 JP JP2013144118A patent/JP2015018885A/ja active Pending
-
2014
- 2014-01-08 TW TW103100650A patent/TW201503257A/zh unknown
- 2014-02-05 KR KR1020140013015A patent/KR101578077B1/ko active IP Right Grant
- 2014-02-14 US US14/181,537 patent/US9269892B2/en active Active
-
2016
- 2016-01-14 US US14/995,897 patent/US9680090B2/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006278456A (ja) * | 2005-03-28 | 2006-10-12 | Ulvac Japan Ltd | トンネル接合素子のエッチング加工方法 |
JP2008065944A (ja) * | 2006-09-08 | 2008-03-21 | Ulvac Japan Ltd | 磁性層パターンの形成方法、磁気抵抗素子の製造方法、及び磁気記憶媒体の製造方法 |
US20120276657A1 (en) * | 2011-04-27 | 2012-11-01 | Olivier Joubert | Method of patterning of magnetic tunnel junctions |
WO2012176747A1 (ja) * | 2011-06-24 | 2012-12-27 | キヤノンアネルバ株式会社 | 機能素子の製造方法 |
JP2013051227A (ja) * | 2011-08-30 | 2013-03-14 | Hitachi High-Technologies Corp | プラズマエッチング方法 |
US20130149499A1 (en) * | 2011-12-07 | 2013-06-13 | Hak-sun Lee | Magnetic devices and methods of manufacturing the same |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016164955A (ja) * | 2015-03-06 | 2016-09-08 | ルネサスエレクトロニクス株式会社 | 半導体装置およびその製造方法 |
WO2018131215A1 (ja) * | 2017-09-21 | 2018-07-19 | 株式会社日立ハイテクノロジーズ | 磁気トンネル接合素子の製造方法および誘導結合型プラズマ処理装置 |
US10833255B2 (en) | 2017-09-21 | 2020-11-10 | Hitachi High-Tech Corporation | Method for manufacturing magnetic tunnel junction element, and inductively coupled plasma processing apparatus |
Also Published As
Publication number | Publication date |
---|---|
US20160133834A1 (en) | 2016-05-12 |
US20150017741A1 (en) | 2015-01-15 |
TW201503257A (zh) | 2015-01-16 |
TWI562229B (ja) | 2016-12-11 |
KR20150007199A (ko) | 2015-01-20 |
KR101578077B1 (ko) | 2015-12-16 |
US9269892B2 (en) | 2016-02-23 |
US9680090B2 (en) | 2017-06-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP2015018885A (ja) | プラズマエッチング方法 | |
US10944051B2 (en) | Method of cleaning a substrate processing apparatus and the substrate processing apparatus performing the method | |
US9601688B2 (en) | Method of manufacturing magnetoresistive element and method of processing magnetoresistive film | |
JP6499980B2 (ja) | プラズマ処理方法 | |
EP2916344B1 (en) | Method of cleaning a plasma processing apparatus | |
KR101266053B1 (ko) | 플라즈마 처리 방법 | |
US9660182B2 (en) | Plasma processing method and plasma processing apparatus | |
JP5883772B2 (ja) | プラズマ処理方法 | |
US9449842B2 (en) | Plasma etching method | |
JP6368837B2 (ja) | プラズマエッチング方法 | |
JP2016046470A (ja) | 被処理体をエッチングする方法 | |
KR101489740B1 (ko) | 자기터널접합 구조용 건식 식각 방법 및 이를 위한 기화장치 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20160217 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20160217 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20160217 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20161221 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20161227 |
|
RD04 | Notification of resignation of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7424 Effective date: 20170116 |
|
RD04 | Notification of resignation of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7424 Effective date: 20170123 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20170206 |
|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20170613 |
|
RD02 | Notification of acceptance of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7422 Effective date: 20170803 |
|
RD04 | Notification of resignation of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7424 Effective date: 20170804 |