JP6539649B2 - 電気絶縁層の反応スパッタ堆積用のターゲット - Google Patents
電気絶縁層の反応スパッタ堆積用のターゲット Download PDFInfo
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- 238000005546 reactive sputtering Methods 0.000 title claims description 14
- 238000000034 method Methods 0.000 claims description 67
- 239000000463 material Substances 0.000 claims description 46
- 238000000576 coating method Methods 0.000 claims description 33
- 239000011248 coating agent Substances 0.000 claims description 30
- 238000004544 sputter deposition Methods 0.000 claims description 21
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 17
- 239000002131 composite material Substances 0.000 claims description 13
- 239000007789 gas Substances 0.000 claims description 13
- 239000012495 reaction gas Substances 0.000 claims description 12
- 229910052782 aluminium Inorganic materials 0.000 claims description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 11
- 239000000758 substrate Substances 0.000 claims description 11
- 239000000126 substance Substances 0.000 claims description 10
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 9
- 229910052804 chromium Inorganic materials 0.000 claims description 9
- 239000011651 chromium Substances 0.000 claims description 9
- 230000003628 erosive effect Effects 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 239000001301 oxygen Substances 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 239000013077 target material Substances 0.000 claims description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims 2
- 229910052757 nitrogen Inorganic materials 0.000 claims 1
- 238000000151 deposition Methods 0.000 description 13
- 229910052751 metal Inorganic materials 0.000 description 13
- 239000002184 metal Substances 0.000 description 13
- 230000008021 deposition Effects 0.000 description 9
- 239000002245 particle Substances 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 5
- 239000010409 thin film Substances 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 239000010408 film Substances 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- RHBRWKIPYGZNMP-UHFFFAOYSA-N [O--].[O--].[O--].[Al+3].[Cr+3] Chemical compound [O--].[O--].[O--].[Al+3].[Cr+3] RHBRWKIPYGZNMP-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- QQHSIRTYSFLSRM-UHFFFAOYSA-N alumanylidynechromium Chemical compound [Al].[Cr] QQHSIRTYSFLSRM-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 230000001066 destructive effect Effects 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- OSIVBHBGRFWHOS-UHFFFAOYSA-N dicarboxycarbamic acid Chemical compound OC(=O)N(C(O)=O)C(O)=O OSIVBHBGRFWHOS-UHFFFAOYSA-N 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000005477 sputtering target Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
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- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
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- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
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- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
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- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
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- Organic Chemistry (AREA)
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- Plasma & Fusion (AREA)
- Analytical Chemistry (AREA)
- Physical Vapour Deposition (AREA)
- Coating By Spraying Or Casting (AREA)
Description
スパッタリング技術(「スパッタリングプロセス」、「HiPIMSプロセス」及び「スパッタ堆積」などの用語を以下で使用する)を用いたコーティングプロセスは、電圧源又は電源による負電圧の適用によりカソードとして接続された少なくとも1つのいわゆるターゲットの使用によって真空チャンバー内で実行される。スパッタリングプロセスにおいて、やはりコーティングチャンバーに存在する少なくとも1つの付加的な電極がアノードとして接続される。原則として不活性ガスであるいわゆる作用ガスがコーティングチャンバーに導入され、正に帯電したイオンがそれから生成される。正に帯電した作用ガスはターゲット表面で加速され、それで加速イオンとの衝突により粒子がターゲット表面から放出される。プロセスパラメーターに依存して、ターゲットから放出される粒子は或る程度にイオン化され、コーティングすべき基板表面に堆積する。金属ターゲットが使用される場合、スパッタリングプロセスの間にターゲットから生成されるイオンはしばしば金属イオンと称される。アルゴンが通常、しかし絶対に専門的にではなく、作用ガスとして使用される。
本発明の目的は、反応スパッタリングプロセスによる電気絶縁層の堆積の際にターゲットとアノードの間での火花放電の発生のために生じるプロセスの不安定性を回避することができる実施形態を創出することである。
本発明の目的は、ターゲットが請求項1に記載されるデザインにより作られ、反応スパッタリングプロセス、特に反応HiPIMSプロセスを実行するために使用されることで達成される。
ここで、
・第1領域BM1は第1物質M1で作られ、第1物質M1は、反応から生じるM1含有複合物質がコーティングすべき基板をコーティングするための所望な層物質の組成に対応するように、反応ガスと反応する1又は複数の元素から成り、
・第2領域BM2は第2物質M2で作られ、第2物質M2は、前述した反応ガスに対して不活性な1若しくは複数の元素、又は反応から生じるM2含有複合物質がM1含有複合物質に比べて高い電気伝導率を有するように前述した反応ガスと反応する1若しくは複数の元素から成り、
・M1≠M2である。
−作動ガス:アルゴン
−反応ガス:酸素
−プロセス圧力:0.6Pa
−酸素分圧:100mPa
−出力密度:300W/cm2
図5aに示す本発明の実施形態を有するターゲットであって、M1=99.9原子%の濃度のアルミニウム(Al 99.9原子%)、及び、M2=それぞれ50原子%の濃度のアルミニウムとクロム(原子%でAlCr 50:50)を有する。
BM1 第1領域
BM2 第2領域
M1 第1物質
M2 第2物質
Claims (12)
- コーティングチャンバー内での電気絶縁層の反応スパッタ堆積用のターゲットであって、
前記ターゲットは、少なくとも表面領域(10)では、少なくとも1つの第1領域(BM1)と少なくとも1つの第2領域(BM2)を含み、
前記第1領域(BM1)は第1物質(M1)から作られ、前記第1物質(M1)は、反応から生じるM1含有複合物質がコーティングすべき基板をコーティングするための所望な層物質の組成に対応するように、反応ガスと反応する1又は複数の元素から成り、
前記第2領域(BM2)は第2物質(M2)から作られ、前記第2物質(M2)は、反応から生じるM2含有複合物質が前記M1含有複合物質に比べて高い電気伝導率を有するように前述した反応ガスと反応する複数の元素から成り、
前記第2物質(M2)は少なくとも1つの元素が前記第1物質(M1)と異なり、
前記第1領域(BM1)での浸食率が、前記第2領域(BM2)での浸食率より大きく、
前記ターゲット表面(10)は設定角度(W)で規定される少なくとも1つの斜面を有し、この斜面を有するターゲット表面領域で、前記第1物質(M1)及び前記第2物質(M2)が互いに隣接して位置し、
前記第2物質(M2)がアルミニウム及びクロムを含む、ことを特徴とするターゲット。 - 前記第1領域(BM1)はターゲットのコア領域を含む、ことを特徴とする請求項1に記載のターゲット。
- 前記第2領域(BM2)はターゲットのエッジ領域を含む、ことを特徴とする請求項1又は2に記載のターゲット。
- 請求項1〜3のいずれか一項に記載の少なくとも1つのターゲットを用いて堆積される少なくとも1つの層によって基板をコーティングする方法。
- 前記層は、反応スパッタリングプロセスにより少なくとも部分的に、及び/又は、反応HiPIMSプロセスにより少なくとも部分的に堆積され、スパッタされたターゲット物質と反応ガスの反応により前記層を作るために、前記プロセスにおいて反応ガスが使用される、ことを特徴とする請求項4に記載の方法。
- 前記スパッタリングプロセス及び/又は前記HiPIMSプロセスの間のターゲットの表面領域(10)での浸食率が、ターゲットの第2領域(BM2)よりもターゲットの第1領域(BM1)において大きい、ことを特徴とする請求項5に記載の方法。
- 前記層が電気絶縁性である、ことを特徴とする請求項6に記載の方法。
- 少なくとも大部分の前記層は、前記第1物質(M1)と前記反応ガスの反応から生じる複合物質の組成に対応する組成を有する、ことを特徴とする請求項5〜7のいずれか一項に記載の方法。
- 前記反応ガスが酸素又は窒素又はその混合物である、ことを特徴とする請求項5〜8のいずれか一項に記載の方法。
- 使用される前記第1物質(M1)が少なくとも大部分にアルミニウムを含む、ことを特徴とする請求項5〜9のいずれか一項に記載の方法。
- 前記第1物質(M1)は少なくとも99.9原子%の濃度のアルミニウムを含み、前記層は少なくとも大部分に酸化アルミニウムを含む、ことを特徴とする請求項5に記載の方法。
- 前記第2物質(M2)は原子%で50:50の濃度のアルミニウムとクロムを含む、ことを特徴とする請求項11に記載の方法。
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US201361843998P | 2013-07-09 | 2013-07-09 | |
US61/843,998 | 2013-07-09 | ||
PCT/EP2014/001884 WO2015003806A1 (de) | 2013-07-09 | 2014-07-09 | Target zur reaktiven sputter-abscheidung elektrisch-isolierender schichten |
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US (1) | US20160141157A1 (ja) |
EP (1) | EP3019640B1 (ja) |
JP (1) | JP6539649B2 (ja) |
KR (1) | KR102234456B1 (ja) |
CN (1) | CN105378138B (ja) |
BR (1) | BR112016000035B1 (ja) |
CA (1) | CA2932841C (ja) |
HK (1) | HK1217976A1 (ja) |
IL (1) | IL243464B (ja) |
MX (2) | MX2016000056A (ja) |
MY (1) | MY185599A (ja) |
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RU (1) | RU2016103909A (ja) |
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TWI754542B (zh) * | 2016-07-11 | 2022-02-01 | 日商半導體能源研究所股份有限公司 | 濺射靶材及金屬氧化物 |
KR102626873B1 (ko) * | 2021-11-17 | 2024-01-17 | 이계영 | HiPIMS를 이용한 전극 증착 방법 |
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US4465575A (en) * | 1981-09-21 | 1984-08-14 | Atlantic Richfield Company | Method for forming photovoltaic cells employing multinary semiconductor films |
US4448659A (en) * | 1983-09-12 | 1984-05-15 | Vac-Tec Systems, Inc. | Method and apparatus for evaporation arc stabilization including initial target cleaning |
JPS60131965A (ja) * | 1983-12-19 | 1985-07-13 | Matsushita Electric Ind Co Ltd | スパツタ用タ−ゲツト装置 |
US5126318A (en) * | 1991-03-13 | 1992-06-30 | Westinghouse Electric Corp. | Sputtering method for forming superconductive films using water vapor addition |
US5466355A (en) * | 1993-07-15 | 1995-11-14 | Japan Energy Corporation | Mosaic target |
JPH09143706A (ja) * | 1995-11-14 | 1997-06-03 | Mitsubishi Chem Corp | スパッタリングターゲット |
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-
2014
- 2014-07-09 US US14/904,343 patent/US20160141157A1/en not_active Abandoned
- 2014-07-09 EP EP14739679.0A patent/EP3019640B1/de active Active
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- 2014-07-09 RU RU2016103909A patent/RU2016103909A/ru not_active Application Discontinuation
- 2014-07-09 MX MX2016000056A patent/MX2016000056A/es unknown
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- 2014-07-09 CN CN201480039448.2A patent/CN105378138B/zh active Active
- 2014-07-09 WO PCT/EP2014/001884 patent/WO2015003806A1/de active Application Filing
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BR112016000035A2 (ja) | 2017-07-25 |
CA2932841C (en) | 2021-11-23 |
CN105378138A (zh) | 2016-03-02 |
CA2932841A1 (en) | 2015-01-15 |
IL243464B (en) | 2019-11-28 |
BR112016000035A8 (pt) | 2018-01-02 |
JP2016524049A (ja) | 2016-08-12 |
HK1217976A1 (zh) | 2017-01-27 |
SG11201510706UA (en) | 2016-01-28 |
IL243464A0 (en) | 2016-02-29 |
US20160141157A1 (en) | 2016-05-19 |
PH12015502842A1 (en) | 2016-03-21 |
CN105378138B (zh) | 2017-11-17 |
KR102234456B1 (ko) | 2021-04-01 |
MX2016000056A (es) | 2016-08-17 |
EP3019640A1 (de) | 2016-05-18 |
BR112016000035B1 (pt) | 2022-01-25 |
KR20160029113A (ko) | 2016-03-14 |
WO2015003806A1 (de) | 2015-01-15 |
EP3019640B1 (de) | 2020-01-08 |
MY185599A (en) | 2021-05-24 |
RU2016103909A (ru) | 2017-08-14 |
MX2021002242A (es) | 2021-05-27 |
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