JP7141197B2 - 材料を堆積させる方法及び装置 - Google Patents
材料を堆積させる方法及び装置 Download PDFInfo
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- JP7141197B2 JP7141197B2 JP2016070211A JP2016070211A JP7141197B2 JP 7141197 B2 JP7141197 B2 JP 7141197B2 JP 2016070211 A JP2016070211 A JP 2016070211A JP 2016070211 A JP2016070211 A JP 2016070211A JP 7141197 B2 JP7141197 B2 JP 7141197B2
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- 238000000034 method Methods 0.000 title claims description 21
- 238000000151 deposition Methods 0.000 title claims description 15
- 239000000463 material Substances 0.000 title claims description 12
- 239000000758 substrate Substances 0.000 claims description 70
- 150000002500 ions Chemical class 0.000 claims description 17
- 238000001755 magnetron sputter deposition Methods 0.000 claims description 13
- 239000003989 dielectric material Substances 0.000 claims description 11
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 238000005240 physical vapour deposition Methods 0.000 claims description 9
- 229910052710 silicon Inorganic materials 0.000 claims description 9
- 239000010703 silicon Substances 0.000 claims description 9
- 230000008021 deposition Effects 0.000 claims description 7
- 238000004544 sputter deposition Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 230000005684 electric field Effects 0.000 claims description 5
- 239000004065 semiconductor Substances 0.000 claims description 3
- 235000012431 wafers Nutrition 0.000 description 29
- 230000007717 exclusion Effects 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- -1 AlN ions Chemical class 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 238000005137 deposition process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000000992 sputter etching Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000005513 bias potential Methods 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000010849 ion bombardment Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000005546 reactive sputtering Methods 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
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Description
チャンバーと、
スパッタリング材料をスパッターすることのできるターゲットを含む、1つ又はそれより多くの一次磁場を作り出すパルスDCマグネトロンデバイスと、
チャンバー中に配置された基板支持体と、
使用中に、ターゲットと基板を2.5~10cmの間隔で離間させるように構成された二次磁場製造デバイスと、
誘電性材料が堆積する間に二次磁場がチャンバー内に作り出されるように、二次磁場製造デバイスを制御するように構成されたコントローラーとを含み、該二次磁場が、チャンバーの1つ又はそれより多くの壁に向けて電子を誘導して、基板の外周部分からイオンを離すドリフト電場を作り出す、装置を提供する。
Claims (17)
- 1つ又はそれより多くの一次磁場を作り出すパルスDCマグネトロンデバイスによるパルスDCマグネトロンスパッタリングにより、チャンバー中の基板上に誘電性材料を堆積させる方法であって、
ターゲットからスパッタリング材料がスパッターされ、ターゲットと基板が2.5~10cmの間隔で離間しており、チャンバーの外周の周囲に配置されたコイルにDC電流を印加する電磁石によって、チャンバーの壁と基板との間の領域において、チャンバー中で概して軸方向に広がる二次磁場がチャンバー内で作り出され、該二次磁場が、パルスDCマグネトロンデバイスにより作り出されたプラズマをチャンバーの1つ又はそれより多くの壁に向けて広げる、方法。 - 基板の幅が、150mm以上である、請求項1に記載の方法。
- ターゲットが幅を有し、基板が幅を有し、ターゲットの幅が基板の幅より大きい、請求項1又は2に記載の方法。
- 電磁石の全てが、マグネトロンデバイスにより作り出されたプラズマをチャンバーの1つ又はそれより多くの壁に向けて広げるように、電磁石が、単一の電磁石又は極性が揃った一連の電磁石である、請求項3に記載の方法。
- 二次磁場が、基板の外周部分において堆積した誘電性材料の厚みを増加させるように作り出される、請求項1~4のいずれか1項に記載の方法。
- 二次磁場が、イオンを基板の外周部分から離す、請求項1~5のいずれか1項に記載の方法。
- Ar+イオンを基板の外周部分から離す、請求項6に記載の方法。
- 二次磁場が、チャンバーの1つ又はそれより多くの壁に向けて電子を引きつけて、基板の外周部分からイオンを離すドリフト電場を作り出す、請求項6又は7に記載の方法。
- AlNが堆積する、請求項1~8のいずれか1項に記載の方法。
- 負のバイアス電圧が、基板が配置された基板支持体に印加される、請求項1~9のいずれか1項に記載の方法。
- 基板が、シリコン基板等の半導体基板である、請求項1~10のいずれか1項に記載の方法。
- パルスDCマグネトロンスパッタリングにより、基板上に誘電性材料を堆積させるPVD装置であって、装置が、
チャンバーと、
スパッタリング材料をスパッターすることのできるターゲットを含む、1つ又はそれより多くの一次磁場を作り出すパルスDCマグネトロンデバイスと、
チャンバー中に配置された基板支持体と、
使用中に、ターゲットと基板を2.5~10cmの間隔で離間させるように構成され、チャンバーの外周の周囲に配置されたコイルと、コイルにDC電流を印加する電気的供給部とを含みチャンバー内にチャンバーの壁と基板との間の領域において、チャンバー中で概して軸方向に広がる二次磁場を作り出す電磁石を含む二次磁場製造デバイスと、
誘電性材料が堆積する間に二次磁場がチャンバー内に作り出されるように、二次磁場製造デバイスを制御するように構成されたコントローラーとを含み、該二次磁場が、チャンバーの1つ又はそれより多くの壁に向けて電子を誘導して、基板の外周部分からイオンを離すドリフト電場を作り出す、装置。 - 基板支持体が、幅が150mm以上である基板を支持するように構成された、請求項12に記載の装置。
- ターゲットが幅を有し、基板支持体が、幅を有する基板を支持するように構成されており、ターゲットの幅が基板の幅より大きい、請求項12又は13に記載の装置。
- 電磁石の全てが、チャンバーの1つ又はそれより多くの壁に向けて電子を誘導して、基板の外周部分からイオンを離すドリフト電場を作り出す磁場を作り出すように、電磁石が、単一の電磁石又は極性が揃った一連の電磁石である、請求項14に記載の装置。
- さらに基板を含む、請求項12~15のいずれか1項に記載の装置。
- 請求項1に記載の方法により、基板上に誘電性材料を堆積させることを含む、バルク弾性波デバイスの製造方法。
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