JP7447004B2 - 窒化ケイ素の薄膜のための処理方法 - Google Patents
窒化ケイ素の薄膜のための処理方法 Download PDFInfo
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- JP7447004B2 JP7447004B2 JP2020540444A JP2020540444A JP7447004B2 JP 7447004 B2 JP7447004 B2 JP 7447004B2 JP 2020540444 A JP2020540444 A JP 2020540444A JP 2020540444 A JP2020540444 A JP 2020540444A JP 7447004 B2 JP7447004 B2 JP 7447004B2
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- silicon nitride
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- 229910052581 Si3N4 Inorganic materials 0.000 title claims description 89
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 title claims description 89
- 238000003672 processing method Methods 0.000 title description 5
- 239000010409 thin film Substances 0.000 title 1
- 238000012545 processing Methods 0.000 claims description 116
- 239000000758 substrate Substances 0.000 claims description 83
- 150000003254 radicals Chemical class 0.000 claims description 81
- 238000000034 method Methods 0.000 claims description 71
- 239000012686 silicon precursor Substances 0.000 claims description 26
- 230000009969 flowable effect Effects 0.000 claims description 25
- 238000000151 deposition Methods 0.000 claims description 20
- 239000012530 fluid Substances 0.000 claims description 7
- 230000005855 radiation Effects 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 5
- 238000010926 purge Methods 0.000 claims description 5
- 239000000376 reactant Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 33
- 239000000463 material Substances 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000000280 densification Methods 0.000 description 4
- 238000004050 hot filament vapor deposition Methods 0.000 description 4
- 238000005229 chemical vapour deposition Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 238000010849 ion bombardment Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- VOSJXMPCFODQAR-UHFFFAOYSA-N ac1l3fa4 Chemical compound [SiH3]N([SiH3])[SiH3] VOSJXMPCFODQAR-UHFFFAOYSA-N 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- PZPGRFITIJYNEJ-UHFFFAOYSA-N disilane Chemical compound [SiH3][SiH3] PZPGRFITIJYNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 150000004756 silanes Chemical class 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- -1 (E) Chemical class 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910008072 Si-N-Si Inorganic materials 0.000 description 1
- 229910007264 Si2H6 Inorganic materials 0.000 description 1
- 229910005096 Si3H8 Inorganic materials 0.000 description 1
- YSCFTYILLCWAFW-UHFFFAOYSA-N [SiH3]N([SiH3])[SiH2]N([SiH3])[SiH3] Chemical compound [SiH3]N([SiH3])[SiH2]N([SiH3])[SiH3] YSCFTYILLCWAFW-UHFFFAOYSA-N 0.000 description 1
- 239000006117 anti-reflective coating Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005441 electronic device fabrication Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000009616 inductively coupled plasma Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920005597 polymer membrane Polymers 0.000 description 1
- 229920001709 polysilazane Polymers 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- VEDJZFSRVVQBIL-UHFFFAOYSA-N trisilane Chemical compound [SiH3][SiH2][SiH3] VEDJZFSRVVQBIL-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Description
Claims (15)
- 基板を処理する方法であって、
処理チャンバの処理容積内に位置する基板支持体上に基板を配置すること、
流動性窒化ケイ素層を前記基板上に堆積させること、
前記基板上に堆積された前記流動性窒化ケイ素層を処理すること、
窒化ケイ素層の厚みが所望の厚みに達するまで、前記流動性窒化ケイ素層を前記基板上に堆積させることと、次いで前記基板上に堆積された前記流動性窒化ケイ素層を処理することとを順次繰り返すこと
を含み、前記基板上に堆積された前記流動性窒化ケイ素層を処理することが、
NH3、N2、H2、He、Ar、又はこれらの組み合わせを含む第1のガスの一種以上のラジカル種を流すこと、及び
前記流動性窒化ケイ素層を前記ラジカル種に曝露すること
を含む、方法。 - 前記第1のガスの前記一種以上のラジカル種を流すことが、
前記第1のガスを前記処理チャンバの処理容積内に流すこと、及び
容量性結合エネルギーにより前記第1のガスの遠隔プラズマを形成すること
を含む、請求項1に記載の方法。 - 一種以上のシリコン前駆体を前記処理チャンバの処理容積内に流すこと、
前記基板を前記一種以上のシリコン前駆体に曝露すること、
第2のガスのラジカル種を含む一種以上のラジカル共反応物質を流すこと、及び
前記基板を前記一種以上のラジカル共反応物質に曝露すること
を含む前記流動性窒化ケイ素層を前記基板上に堆積させることをさらに含む、請求項1に記載の方法。 - 前記第2のガスの前記一種以上のラジカル種を流すことが、
前記第2のガスを前記処理チャンバの処理容積内に流すこと、及び
容量性結合エネルギーにより前記第2のガスの遠隔プラズマを形成すること
を含む、請求項3に記載の方法。 - 前記一種以上のシリコン前駆体が炭素を含まない、請求項3に記載の方法。
- 前記一種以上のシリコン前駆体がシラザン化合物を含む、請求項3に記載の方法。
- 前記第2のガスの前記一種以上のラジカル種が、前記処理チャンバと流体連結する遠隔プラズマ源から前記処理チャンバの処理容積に流れる、請求項3に記載の方法。
- 前記流動性窒化ケイ素層を堆積させた後、堆積された前記流動性窒化ケイ素層を処理する前に、前記処理容積に流入させた不活性パージガスを使用して前記処理容積をパージすることをさらに含む、請求項7に記載の方法。
- 窒化ケイ素層のラジカルベース処理のための方法であって、
処理チャンバの処理容積内に位置する基板支持体上に基板を配置すること、
流動性窒化ケイ素層を前記基板上に堆積させること、
前記基板上に堆積された前記流動性窒化ケイ素層を処理すること、及び
窒化ケイ素層の厚みが所望の厚みに達するまで、前記流動性窒化ケイ素層を前記基板上に堆積させることと、次いで前記基板上に堆積された前記流動性窒化ケイ素層を処理することとを順次繰り返すこと
を含み、前記基板上に堆積された前記流動性窒化ケイ素層を処理することが、
NH3、N2、H2、He、Ar、又はこれらの組み合わせを含む第1のガスの一種以上のラジカル種を流すこと、及び
堆積された前記流動性窒化ケイ素層を前記ラジカル種に曝露すること
を含み、前記流動性窒化ケイ素層が、
一種以上のシリコン前駆体を前記処理チャンバの処理容積内に流すこと、
前記基板を前記一種以上のシリコン前駆体に曝露すること、
第2のガスのラジカル種を含む一種以上のラジカル共反応物質を流すこと、及び
前記基板を前記一種以上のラジカル共反応物質に曝露すること
を含む方法を使用して堆積させたものである、方法。 - 前記第1のガスの前記一種以上のラジカル種が、前記処理チャンバと流体連結する遠隔プラズマ源から前記処理チャンバの処理容積に流れる、請求項9に記載の方法。
- 前記第2のガスの前記一種以上のラジカル種が、前記処理チャンバと流体連結する遠隔プラズマ源から前記処理チャンバの処理容積に流れる、請求項9に記載の方法。
- 前記第1のガスの前記一種以上のラジカル種を流すことが、
前記第1のガスを前記処理チャンバの処理容積内に流すこと、及び
容量性結合エネルギーを通して前記第1のガスの遠隔プラズマを形成すること、
を含む、請求項9に記載の方法。 - 窒化ケイ素層の形成方法であって、
基板上に流動性窒化ケイ素層を堆積させることであって、
一種以上のシリコン前駆体を第1の処理チャンバの処理容積内に流すこと、
基板を前記一種以上のシリコン前駆体に曝露すること、
第1のガスのラジカル種を含む一種以上のラジカル共反応物質を流すこと、及び
前記基板を前記一種以上のラジカル共反応物質に曝露すること
を含む、基板上に流動性窒化ケイ素層を堆積させること、
前記流動性窒化ケイ素層を処理することであって、
NH3、N2、H2、He、Ar、又はこれらの組み合わせを含む第2のガスの一種以上のラジカル種を流すこと、及び
堆積された前記流動性窒化ケイ素層を前記第2のガスのラジカル種に曝露すること
を含む、前記流動性窒化ケイ素層を処理すること、並びに
窒化ケイ素層の厚みが所望の厚みに達するまで、前記基板上に前記流動性窒化ケイ素層を堆積させることと、次いで前記基板上に堆積された前記流動性窒化ケイ素層を処理することとを順次繰り返すこと
を含む方法。 - 前記第1の処理チャンバから第2の処理チャンバへ前記基板を移送することをさらに含み、堆積された前記流動性窒化ケイ素層を前記第2のガスのラジカル種に曝露することが、前記第2の処理チャンバ内で行われる、請求項13に記載の方法。
- 前記第2のガスの前記一種以上のラジカル種を流すことが、第2の処理チャンバ内に位置するUV照射源を使用して前記第2のガスを前記一種以上のラジカル種に光解離することを含む、請求項13に記載の方法。
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US20190233940A1 (en) | 2019-08-01 |
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TW201936970A (zh) | 2019-09-16 |
CN111684566A (zh) | 2020-09-18 |
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