JP2022507132A - 基板製造のための方法および装置 - Google Patents
基板製造のための方法および装置 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 45
- 238000004519 manufacturing process Methods 0.000 title abstract description 15
- 239000000758 substrate Substances 0.000 claims abstract description 117
- 230000004888 barrier function Effects 0.000 claims abstract description 64
- 229910052751 metal Inorganic materials 0.000 claims abstract description 47
- 239000002184 metal Substances 0.000 claims abstract description 47
- 238000000151 deposition Methods 0.000 claims abstract description 28
- 238000001465 metallisation Methods 0.000 claims abstract description 25
- 230000008021 deposition Effects 0.000 claims abstract description 20
- 238000004140 cleaning Methods 0.000 claims abstract description 11
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims abstract description 5
- 229920005591 polysilicon Polymers 0.000 claims abstract description 5
- 238000000137 annealing Methods 0.000 claims description 30
- 238000011282 treatment Methods 0.000 claims description 10
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 6
- 239000010948 rhodium Substances 0.000 claims description 6
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 6
- 239000010936 titanium Substances 0.000 claims description 6
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims description 4
- 229910052707 ruthenium Inorganic materials 0.000 claims description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 claims description 3
- IVHJCRXBQPGLOV-UHFFFAOYSA-N azanylidynetungsten Chemical compound [W]#N IVHJCRXBQPGLOV-UHFFFAOYSA-N 0.000 claims description 3
- 229910052741 iridium Inorganic materials 0.000 claims description 3
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 239000011733 molybdenum Substances 0.000 claims description 3
- 229910052703 rhodium Inorganic materials 0.000 claims description 3
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 3
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 229910052715 tantalum Inorganic materials 0.000 claims description 3
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 3
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 239000010937 tungsten Substances 0.000 claims description 3
- 230000015556 catabolic process Effects 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 abstract description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 2
- 229910052710 silicon Inorganic materials 0.000 abstract 2
- 239000010703 silicon Substances 0.000 abstract 2
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- 238000005137 deposition process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- WYEMLYFITZORAB-UHFFFAOYSA-N boscalid Chemical compound C1=CC(Cl)=CC=C1C1=CC=CC=C1NC(=O)C1=CC=CN=C1Cl WYEMLYFITZORAB-UHFFFAOYSA-N 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- -1 ruthenium (Ru) Chemical class 0.000 description 1
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Abstract
Description
Claims (15)
- ダイナミックランダムアクセスメモリ(DRAM)ビット線積層体処理を実行するためのクラスタツールであって、前記クラスタツールは、
真空条件下で、その上に形成されたポリシリコンプラグを有する基板を受け取り、真空破壊することなく、複数の処理チャンバとの間で前記基板を搬送するように構成された真空搬送モジュール(VTM)であって、前記複数の処理チャンバの各々は、前記基板に、複数のDRAMビット線処理のうちの対応する処理を実行するため、前記VTMに独立して接続される、真空搬送モジュールを備え、前記複数の処理チャンバは、
前記基板の表面から自然酸化物を除去するように構成された予洗浄チャンバと、
前記基板の表面上にバリア金属を堆積させるように構成されたバリア金属堆積チャンバと、
前記基板の前記表面上にバリア層を堆積させるように構成されたバリア層堆積チャンバと、
ビット線金属層を前記基板の前記表面上に堆積させるように構成されたビット線金属堆積チャンバと、
ハードマスク層を前記基板の前記表面上に堆積させるように構成されたハードマスク堆積チャンバと、
を備える、クラスタツール。 - 前記複数の処理チャンバは、
前記基板にアニール処理を実行するように構成されたアニールチャンバと、
前記基板の前記表面上にキャッピング層を堆積させるように構成されたキャッピングチャンバと、
をさらに含む、請求項1に記載のクラスタツール。 - 前記バリア金属堆積チャンバが堆積させるように構成される前記バリア金属は、チタン(Ti)またはタンタル(Ta)のうちの少なくとも1つを含む、請求項1に記載のクラスタツール。
- 前記バリア金属堆積チャンバが堆積させるように構成される前記バリア層は、窒化チタン(TiN)、窒化タンタル(TaN)、または窒化タングステン(WN)のうちの少なくとも1つを含む、請求項1に記載のクラスタツール。
- 前記ビット線金属堆積チャンバが堆積させるように構成される前記ビット線金属層は、タングステン(W)、モリブデン(Mo)、ルテニウム(Ru)、イリジウム(Ir)、またはロジウム(Rh)のうちの少なくとも1つを含む、請求項1に記載のクラスタツール。
- 前記ハードマスク堆積チャンバが堆積させるように構成される前記ハードマスク層は、窒化シリコン(SiN)、酸化シリコン(SiO)、または炭化シリコン(SiC)のうちの少なくとも1つを含む、請求項1に記載のクラスタツール。
- 前記クラスタツールは、前記複数の処理チャンバを制御するように構成されたコントローラをさらに備える、請求項1から6のいずれか一項に記載のクラスタツール。
- ダイナミックランダムアクセスメモリ(DRAM)ビット線積層体処理を実行する方法であって、
クラスタツールの真空搬送モジュール(VTM)内で、真空条件下で、ポリシリコンプラグを有する基板を受け取ることと、
前記基板上のポリプラグの表面から自然酸化物を除去するために、真空破壊することなく、前記基板を前記VTMから予洗浄チャンバに搬送することと、
真空破壊することなく、前記基板を前記予洗浄チャンバからバリア金属堆積チャンバに搬送し、前記ポリプラグ上にバリア金属を堆積させることと、
真空破壊することなく、前記基板を前記バリア金属堆積チャンバからバリア層堆積チャンバに搬送し、前記バリア金属上にバリア層を堆積させることと、
真空破壊することなく、前記基板を前記バリア層堆積チャンバからビット線金属堆積チャンバに搬送し、前記バリア層上にビット線金属層を堆積させることと、
真空破壊することなく、前記基板を前記ビット線金属堆積チャンバからハードマスク堆積チャンバに搬送し、前記ビット線金属層上にハードマスク層を堆積させることと、
を含む方法。 - 真空破壊することなく、前記基板を前記バリア金属堆積チャンバから前記バリア層堆積チャンバに搬送する前に、真空破壊することなく、前記基板を前記バリア金属堆積チャンバからアニール処理チャンバに搬送し、前記基板にアニール処理を実行することをさらに含む、請求項8に記載の方法。
- 真空破壊することなく、前記基板を前記ビット線金属堆積チャンバから前記ハードマスク堆積チャンバに搬送する前に、
真空破壊することなく、前記基板を前記ビット線金属堆積チャンバからアニール処理チャンバに搬送し、前記基板にアニール処理を実行することと、
真空破壊することなく、前記基板を前記アニール処理チャンバからキャッピングチャンバに搬送し、前記ビット線金属層上にキャッピング層を堆積させることと、
をさらに含む、請求項8に記載の方法。 - 前記バリア金属堆積チャンバが堆積させるバリア金属層は、チタン(Ti)またはタンタル(Ta)のうちの少なくとも1つを含む、請求項8に記載の方法。
- 前記バリア層堆積チャンバが堆積させる前記バリア層は、窒化チタン(TiN)、窒化タンタル(TaN)、または窒化タングステン(WN)のうちの少なくとも1つを含む、請求項8に記載の方法。
- 前記ビット線金属堆積チャンバが堆積させる前記ビット線金属層は、タングステン(W)、モリブデン(Mo)、ルテニウム(Ru)、イリジウム(Ir)、またはロジウム(Rh)のうちの少なくとも1つを含む、請求項8に記載の方法。
- 前記ハードマスク堆積チャンバが堆積させる前記ハードマスク層は、窒化シリコン(SiN)、酸化シリコン(SiO)、または炭化シリコン(SiC)のうちの少なくとも1つを含む、請求項8から13のいずれか一項に記載の方法。
- プロセッサによって実行されるときに、ダイナミックランダムアクセスメモリ(DRAM)ビット線積層体処理を実行するための方法を実行する複数の命令を記憶した、非一時的コンピュータ可読記憶媒体であって、前記方法は、
真空条件下で、クラスタツールの真空搬送モジュール(VTM)で、ポリシリコンプラグを有する基板を受け取ることと、
真空破壊することなく、前記基板を前記VTMから予洗浄チャンバに搬送し、前記基板の表面から自然酸化物を除去することと、
真空破壊することなく、前記基板を前記予洗浄チャンバからバリア金属堆積チャンバに搬送し、前記ポリプラグ上にバリア金属を堆積させることと、
真空破壊することなく、前記基板を前記バリア金属堆積チャンバからバリア層堆積チャンバに搬送し、前記バリア金属上にバリア層を堆積させることと、
真空破壊することなく、前記基板を前記バリア層堆積チャンバからビット線金属堆積チャンバに搬送し、前記バリア層上にビット線金属層を堆積させることと、
真空破壊することなく、前記基板を前記ビット線金属堆積チャンバからハードマスク堆積チャンバに搬送し、前記ビット線金属の前記表面上にハードマスク層を堆積させることと、
を含む、非一時的コンピュータ可読記憶媒体。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/189,487 | 2018-11-13 | ||
US16/189,487 US10529602B1 (en) | 2018-11-13 | 2018-11-13 | Method and apparatus for substrate fabrication |
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