JP2023515754A - 誘電体スパッタリング中の加工物の欠陥を低減するためのプラズマチャンバターゲット - Google Patents
誘電体スパッタリング中の加工物の欠陥を低減するためのプラズマチャンバターゲット Download PDFInfo
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- 238000004544 sputter deposition Methods 0.000 title claims abstract description 18
- 230000007547 defect Effects 0.000 title abstract description 39
- 239000003989 dielectric material Substances 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 22
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 17
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims abstract description 17
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000002245 particle Substances 0.000 claims description 47
- 239000000758 substrate Substances 0.000 claims description 37
- 229910052751 metal Inorganic materials 0.000 claims description 19
- 239000002184 metal Substances 0.000 claims description 19
- 238000000151 deposition Methods 0.000 claims description 14
- 239000013078 crystal Substances 0.000 claims description 11
- 230000008021 deposition Effects 0.000 claims description 7
- 238000005240 physical vapour deposition Methods 0.000 claims description 6
- 229910052715 tantalum Inorganic materials 0.000 claims description 4
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 4
- 230000003746 surface roughness Effects 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- -1 onto a workpiece (eg Substances 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- 230000032798 delamination Effects 0.000 description 2
- 238000002149 energy-dispersive X-ray emission spectroscopy Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000012864 cross contamination Methods 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000012636 effector Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- JEDDOUHNTYQCFY-UHFFFAOYSA-N magnesium oxygen(2-) tantalum(5+) Chemical compound [O-2].[Ta+5].[Mg+2] JEDDOUHNTYQCFY-UHFFFAOYSA-N 0.000 description 1
- XSETZKVZGUWPFM-UHFFFAOYSA-N magnesium;oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[O-2].[Mg+2].[Ti+4] XSETZKVZGUWPFM-UHFFFAOYSA-N 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004901 spalling Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
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Abstract
Description
Claims (20)
- 約65μm~500μmの範囲の所定の平均粒径を有する誘電体化合物から本質的に成る誘電体スパッタ堆積ターゲットであって、
前記誘電体化合物は、酸化マグネシウムまたは酸化アルミニウムの少なくとも一方である、誘電体スパッタ堆積ターゲット。 - 前記誘電体化合物の粒子の少なくとも80%が、前記所定の平均粒径の20%以内または前記所定の平均粒径の30%以内の一方の大きさである、請求項1に記載の誘電体スパッタ堆積ターゲット。
- 前記誘電体化合物が単結晶である、請求項1に記載の誘電体スパッタ堆積ターゲット。
- 前記誘電体化合物が、約400μmの所定の平均粒径を有する酸化マグネシウムである、請求項1~3のいずれかに記載の誘電体スパッタ堆積ターゲット。
- 前記誘電体化合物は密度が少なくとも99.7%である、請求項1に記載の誘電体スパッタ堆積ターゲット。
- 前記誘電体化合物は密度が少なくとも99.98%である、請求項1~3または5のいずれかに記載の誘電体スパッタ堆積ターゲット。
- 内部容積部を画定するチャンバ本体と、
前記内部容積部内で基板を支持する基板支持体と、
少なくとも1つの誘電体ターゲットおよび少なくとも1つの金属ターゲットを含む、前記基板の上にスパッタリングされるべき複数のターゲットとを備える処理チャンバであって、前記誘電体ターゲットが、約65μm~500μmの範囲の所定の平均粒径を有する誘電体化合物を含む、処理チャンバ。 - 前記誘電体化合物が単結晶である、請求項7に記載の処理チャンバ。
- 前記誘電体化合物が、約400μmの所定の平均粒径を有する酸化マグネシウムである、請求項7に記載の処理チャンバ。
- 前記チャンバ本体に結合されているとともに前記複数のターゲットに対応する複数のカソードをさらに備える、請求項7に記載の処理チャンバ。
- 前記チャンバ本体に結合されているとともに、スパッタリングされるべき前記複数のターゲットのうちの少なくとも1つを露出させるための少なくとも1つの穴を有しているシールドをさらに備え、前記複数のターゲットが、前記シールドの縁部から少なくとも0.5インチ離して配置される、請求項7に記載の処理チャンバ。
- 前記シールドが前記チャンバ本体の上部に回転可能に結合される、請求項7~11のいずれかに記載の処理チャンバ。
- 前記シールドがさらに、
スパッタリングされるべきではない前記複数のターゲットのうちの少なくとも別の1つを収容および遮蔽するための、前記シールドの上面に配置された少なくとも1つのシャントを備える、請求項7に記載の処理チャンバ。 - 前記シールドが、前記処理チャンバの中心軸のまわりに回転するように、かつ中心軸に沿って直線的に移動するように構成される、請求項7~11または13のいずれかに記載の処理チャンバ。
- 処理チャンバ内で物理的気相堆積を実施する方法であって、
前記処理チャンバ内で第1のターゲットを選択し、前記第1のターゲットを介して加工物上に、約65μm~500μmの範囲の所定の平均粒径を有する誘電体化合物を堆積させるステップと、
前記処理チャンバ内で第2のターゲットを選択し、前記第2のターゲットを介して前記加工物上の前記誘電体化合物の上に金属を堆積するステップとを含む、方法。 - 前記第1のターゲットが誘電体ターゲットであり、前記第2のターゲットが金属ターゲットである、請求項15に記載の方法。
- 前記誘電体化合物が、約400μmの所定の平均粒径を有する単結晶酸化マグネシウムである、請求項15または16のいずれかに記載の方法。
- 前記金属がタンタルである、請求項15のいずれかに記載の方法。
- 前記第1のターゲットが前記処理チャンバのシールドの縁部から約0.5インチ~2.0インチ離して配置される、請求項15に記載の方法。
- 前記第1のターゲットがミラー仕上げされている、請求項15、16、18、または19のいずれかに記載の方法。
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US16/918,513 US11227751B1 (en) | 2020-07-01 | 2020-07-01 | Plasma chamber target for reducing defects in workpiece during dielectric sputtering |
PCT/US2021/035607 WO2022005686A1 (en) | 2020-07-01 | 2021-06-03 | Plasma chamber target for reducing defects in workpiece during dielectric sputtering |
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