JP7213808B2 - イオンエネルギー分布関数(iedf)の生成 - Google Patents
イオンエネルギー分布関数(iedf)の生成 Download PDFInfo
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- 238000005315 distribution function Methods 0.000 title claims description 23
- 150000002500 ions Chemical class 0.000 claims description 90
- 238000000034 method Methods 0.000 claims description 47
- 239000000758 substrate Substances 0.000 description 35
- 210000002381 plasma Anatomy 0.000 description 17
- 238000010586 diagram Methods 0.000 description 12
- 239000000919 ceramic Substances 0.000 description 3
- 238000005530 etching Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- H—ELECTRICITY
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- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/02—Details
- H01J37/04—Arrangements of electrodes and associated parts for generating or controlling the discharge, e.g. electron-optical arrangement or ion-optical arrangement
- H01J37/08—Ion sources; Ion guns
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
- H01L21/3065—Plasma etching; Reactive-ion etching
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- H—ELECTRICITY
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- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/02—Details
- H01J37/248—Components associated with high voltage supply
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32431—Constructional details of the reactor
- H01J37/32532—Electrodes
- H01J37/32577—Electrical connecting means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32431—Constructional details of the reactor
- H01J37/32697—Electrostatic control
- H01J37/32706—Polarising the substrate
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32431—Constructional details of the reactor
- H01J37/32715—Workpiece holder
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/321—After treatment
- H01L21/3213—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer
- H01L21/32133—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only
- H01L21/32135—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only by vapour etching only
- H01L21/32136—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only by vapour etching only using plasmas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67017—Apparatus for fluid treatment
- H01L21/67063—Apparatus for fluid treatment for etching
- H01L21/67069—Apparatus for fluid treatment for etching for drying etching
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Description
次に、方法1000は1006に進むことができる。
次に、方法1000は終了することができる。
Claims (12)
- 反応性イオンエッチングプラズマ処理チャンバでウエハを処理する方法であって、
ネガティブジャンプ電圧を処理チャンバの電極に印加してウエハ用のウエハ電圧を設定するステップと、
前記ウエハ電圧の振幅を変調して異なる振幅の複数のバーストの列を生成し、複数のバーストの列を繰り返すことにより、2つ以上のエネルギーピークを有するイオンエネルギー分布関数を生成するステップであって、それぞれのバーストは同一振幅のパルスからなるステップとを含み、
それぞれのバーストの特定の振幅における相対パルス数が前記特定の振幅に対応するイオンエネルギーにおける相対イオン分率を決定し、
前記エネルギーピークのそれぞれに対するイオン分率が、前記異なる振幅におけるウエハ電圧のそれぞれの変調中に生成されたパルスの数によって決定され、
特定の振幅を有する列内のバーストの相対数は特定のエネルギーにおけるイオンの相対量を決定し、バースト内のパルスのネガティブジャンプ振幅はイオンエネルギーを決定する、方法。 - ポジティブジャンプ電圧を前記処理チャンバの前記電極に印加して前記ウエハの表面を中和するステップを含む、請求項1に記載の方法。
- 前記ウエハ電圧の前記振幅を変調して、所望のイオンエネルギー分布関数を生成し、前記ウエハ上に特定のバイアス電圧波形を誘導する、請求項1に記載の方法。
- 異なる時点でウエハ電圧を変調して複数のエネルギーピークを有するイオンエネルギー分布関数を生成するステップを含む、請求項1に記載の方法。
- 前記エネルギーピークのそれぞれに対するイオン分率が、前記異なる時点における前記ウエハ電圧のそれぞれの変調中に生成されるパルスの数によって決定される、請求項4に記載の方法。
- 異なる振幅における前記ウエハ電圧を変調して、異なる振幅を持つ複数のエネルギーピークを有するイオンエネルギー分布関数を生成するステップを含む、請求項1に記載の方法。
- 反応性イオンエッチングプラズマ処理チャンバでウエハを処理する方法であって、
ポジティブジャンプ電圧を処理チャンバの電極に印加してウエハの表面を中和するステップと、
ネガティブジャンプ電圧を前記電極に印加して前記ウエハ用のウエハ電圧を設定するステップと、
前記ウエハ上のイオン電流を過補償するランプ電圧を前記電極に印加するステップとを含み、
前記ウエハ上のイオン電流を過補償するランプ電圧を前記電極に印加するステップは、前記ウエハ上での電圧を一定に維持するために必要とされるよりも大きい負の勾配を含むランプ電圧を前記電極に印加し、2つ以上のエネルギーピークを有するイオンエネルギー分布関数を生成するステップを含む、方法。 - 前記ウエハ上に誘導される電流の最小電圧及び最大電圧が、結果として生じるイオンエネルギー分布関数の幅を決定する、請求項7に記載の方法。
- 前記ランプ電圧の勾配を調整して、所望のイオンエネルギー分布関数を生成し、前記ウエハ上に特定のバイアス電圧波形を誘導するステップを含む、請求項7に記載の方法。
- 反応性イオンエッチングプラズマ処理チャンバでウエハを処理する方法であって、
ポジティブジャンプ電圧を処理チャンバの電極に印加してウエハの表面を中和するステップと、
ネガティブジャンプ電圧を前記電極に印加して前記ウエハ用のウエハ電圧を設定するステップと、
前記ウエハ上のイオン電流を不足補償するランプ電圧を前記電極に印加するステップとを含み、
前記ウエハ上のイオン電流を不足補償するランプ電圧を前記電極に印加するステップは、前記ウエハ上での電圧を一定に維持するのに必要とされるよりも小さい負の勾配を含むランプ電圧を前記電極に印加し、単一のエネルギーピークを有するイオンエネルギー分布関数を生成するステップを含む、方法。 - 前記ウエハ上に誘導される電流の最小電圧及び最大電圧が、結果として生じるイオンエネルギー分布関数の幅を決定する、請求項10に記載の方法。
- 前記ランプ電圧の勾配を調整して、所望のイオンエネルギー分布関数を生成し前記ウエハ上に特定のバイアス電圧波形を誘導するステップを含む、請求項10に記載の方法。
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JP2022181622A JP2023022086A (ja) | 2016-12-12 | 2022-11-14 | イオンエネルギー分布関数(iedf)の生成 |
JP2024111356A JP2024133686A (ja) | 2016-12-12 | 2024-07-11 | イオンエネルギー分布関数(iedf)の生成 |
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US15/834,939 US10312048B2 (en) | 2016-12-12 | 2017-12-07 | Creating ion energy distribution functions (IEDF) |
US15/834,939 | 2017-12-07 | ||
PCT/US2017/065546 WO2018111751A1 (en) | 2016-12-12 | 2017-12-11 | Creating ion energy distribution functions (iedf) |
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US20190259562A1 (en) | 2019-08-22 |
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CN109997214A (zh) | 2019-07-09 |
CN112701025A (zh) | 2021-04-23 |
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US20200266022A1 (en) | 2020-08-20 |
US20180166249A1 (en) | 2018-06-14 |
WO2018111751A1 (en) | 2018-06-21 |
US11069504B2 (en) | 2021-07-20 |
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