JP6783241B2 - 基板から金属を除去する方法及びワークピース処理システム - Google Patents
基板から金属を除去する方法及びワークピース処理システム Download PDFInfo
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- 229910052751 metal Inorganic materials 0.000 title claims description 90
- 239000002184 metal Substances 0.000 title claims description 90
- 239000000758 substrate Substances 0.000 title claims description 71
- 238000000034 method Methods 0.000 title claims description 64
- 239000007789 gas Substances 0.000 claims description 167
- 150000001875 compounds Chemical class 0.000 claims description 75
- 230000008569 process Effects 0.000 claims description 37
- 238000000859 sublimation Methods 0.000 claims description 30
- 230000008022 sublimation Effects 0.000 claims description 30
- 238000003860 storage Methods 0.000 claims description 27
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 24
- 238000006243 chemical reaction Methods 0.000 claims description 16
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 14
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 14
- 239000000460 chlorine Substances 0.000 claims description 14
- 239000002243 precursor Substances 0.000 claims description 12
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 10
- 229910052697 platinum Inorganic materials 0.000 claims description 10
- BJKFNDJKMJNXAP-UHFFFAOYSA-M C(=O)=[Pt]Cl Chemical compound C(=O)=[Pt]Cl BJKFNDJKMJNXAP-UHFFFAOYSA-M 0.000 claims description 7
- 229910052801 chlorine Inorganic materials 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 6
- NHYCGSASNAIGLD-UHFFFAOYSA-N chlorine monoxide Inorganic materials Cl[O] NHYCGSASNAIGLD-UHFFFAOYSA-N 0.000 claims 3
- 238000000926 separation method Methods 0.000 claims 2
- CLSUSRZJUQMOHH-UHFFFAOYSA-L platinum dichloride Chemical compound Cl[Pt]Cl CLSUSRZJUQMOHH-UHFFFAOYSA-L 0.000 claims 1
- 150000002739 metals Chemical class 0.000 description 8
- 238000005530 etching Methods 0.000 description 7
- 238000004544 sputter deposition Methods 0.000 description 7
- 238000001465 metallisation Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- -1 dicarbonyl platinum chloride Chemical compound 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 229910052741 iridium Inorganic materials 0.000 description 2
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052703 rhodium Inorganic materials 0.000 description 2
- 239000010948 rhodium Substances 0.000 description 2
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000005477 sputtering target Methods 0.000 description 2
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 239000003039 volatile agent Substances 0.000 description 1
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- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/10—Etching compositions
- C23F1/12—Gaseous compositions
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- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
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- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
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- C—CHEMISTRY; METALLURGY
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- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/02—Pretreatment of the material to be coated
- C23C16/0227—Pretreatment of the material to be coated by cleaning or etching
- C23C16/0236—Pretreatment of the material to be coated by cleaning or etching by etching with a reactive gas
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
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- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
- C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
- C23C18/125—Process of deposition of the inorganic material
- C23C18/1295—Process of deposition of the inorganic material with after-treatment of the deposited inorganic material
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F4/00—Processes for removing metallic material from surfaces, not provided for in group C23F1/00 or C23F3/00
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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
- H01J37/3244—Gas supply means
- H01J37/32449—Gas control, e.g. control of the gas flow
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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
- H01J37/32798—Further details of plasma apparatus not provided for in groups H01J37/3244 - H01J37/32788; special provisions for cleaning or maintenance of the apparatus
- H01J37/32816—Pressure
- H01J37/32834—Exhausting
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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
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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
- H01L21/67—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
- H01L21/67242—Apparatus for monitoring, sorting or marking
- H01L21/67248—Temperature monitoring
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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
- H01L21/67242—Apparatus for monitoring, sorting or marking
- H01L21/67253—Process monitoring, e.g. flow or thickness monitoring
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- Manufacturing & Machinery (AREA)
- General Physics & Mathematics (AREA)
- Inorganic Chemistry (AREA)
- Thermal Sciences (AREA)
- Chemical Vapour Deposition (AREA)
- Drying Of Semiconductors (AREA)
- Semiconductor Memories (AREA)
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Description
チャンバから排出するために困難であり得る。例えば、プラチナは重金属であり、スパッタリングエッチングプロセスの間に、基板の表面の上に容易に再蒸着し、それ故に、基板から除去することは困難である。
を有する。
Claims (16)
- 基板から金属を除去する方法であって、該方法は、
1つ以上の処理ガスを、前記基板の表面の上に配置された金属と第1の温度で化学反応を起こさせ、除去できる化合物を形成するステップであって、該除去できる化合物は昇華温度で昇華し、前記第1の温度は前記昇華温度より低い、ステップと、
前記除去できる化合物がガス状になるように、前記除去できる化合物を昇華するステップであって、前記1つ以上の処理ガスと前記基板の上に配置された前記金属との間に更に化学反応は起きず、前記昇華するステップの温度は前記昇華温度より高い第2の温度である、ステップと、
前記基板の表面から前記ガス状の除去できる化合物を分離する、ステップと、
を有する方法。 - 金属の所望の量を前記基板から除去するまで、前記化学反応を起こさせるステップと、前記昇華するステップと、前記分離するステップと、を、複数回、繰り返すステップを、更に有する、請求項1記載の方法。
- 前記金属はプラチナを含む、請求項1記載の方法。
- 前記1つ以上の処理ガスは、塩素及び一酸化炭素を含み、前記除去できる化合物は、塩化カルボニルプラチナを含む、請求項3記載の方法。
- 基板から金属を除去する方法であって、該方法は、
前記基板の表面の上に配置された金属を、第1の処理ガスと第1の温度で化学反応を起こさせ、除去できる化合物の前駆体を形成するステップであって、前記除去できる化合物は昇華温度で昇華し、前記第1の温度は前記昇華温度より低い、ステップと、
前記前駆体を、第2の処理ガスと第2の温度で化学反応を起こさせ、除去できる化合物を形成するステップであって、前記第1の処理ガスと前記基板の上に配置された前記金属との間に更に化学反応は起きない、ステップと、
前記除去できる化合物がガス状になるように、前記除去できる化合物を昇華するステップと、
前記ガス状の除去できる化合物を前記基板の表面から分離するステップと、
を有する方法。 - 金属の所望の量を前記基板から除去するまで、前記第1の処理ガスと前記化学反応を起こさせるステップと、前記第2の処理ガスと前記化学反応を起こさせるステップと、前記昇華するステップと、前記分離するステップと、を、複数回、繰り返すステップを、更に有する、請求項5記載の方法。
- 前記金属はプラチナを含む、請求項5記載の方法。
- 前記第1の処理ガスは塩素を含み、前記第2の処理ガスは一酸化炭素を含む、請求項7記載の方法。
- 前記除去できる化合物は、塩化カルボニルプラチナを含む、請求項8記載の方法。
- 前記前駆体は、塩化プラチナを含む、請求項8記載の方法。
- ワークピース処理システムであって、該システムは、
ガス注入口及び排気口を備えるチャンバと、
該チャンバと連通するヒーターと、
少なくとも1つの処理ガスを含むガス貯蔵コンテナと、
該ガス貯蔵コンテナと前記ガス注入口との間に配置されるバルブと、
前記排気口と連通する排気ポンプと、
前記バルブ、前記排気ポンプ及び前記ヒーターと連通するコントローラと、を備え、
該コントローラは、
前記バルブを作動させ、前記少なくとも1つの処理ガスを第1の温度の前記チャンバの中へ導入し、
前記バルブを作動させ、前記少なくとも1つの処理ガスの前記チャンバの中への流れを停止し、
前記チャンバの温度が前記第1の温度である第1の残存時間の後に、前記排気ポンプを作動させ、前記少なくとも1つの処理ガスを前記チャンバから排出し、
前記少なくとも1つの処理ガスを排出した後に、前記ヒーターを作動させ、前記チャンバの温度を第2の温度へ上げ、
前記少なくとも1つの処理ガスと、前記チャンバの中に配置された基板の表面の上に配置された金属と、の間の化学反応により製造された除去できる化合物を除去するために、前記排気ポンプを作動させ、
前記第1の温度は前記除去できる化合物が昇華する温度より低く、前記第2の温度は前記除去できる化合物が昇華する前記温度より高い、システム。 - 前記少なくとも1つの処理ガスは、塩素及び一酸化炭素を含む、請求項11記載のワークピース処理システム。
- 前記少なくとも1つの処理ガスは塩素を含み、
前記システムは、さらに、
第2のガス貯蔵コンテナと、
該第2のガス貯蔵コンテナと前記ガス注入口との間に配置される第2のバルブと、を備え、
一酸化炭素は、前記第2のガス貯蔵コンテナの中に配置される、請求項11記載のワークピース処理システム。 - 前記コントローラは、
前記第2のバルブを作動させ、一酸化炭素を前記第1の温度の前記チャンバの中へ導入し、
前記ヒーターを作動させる前に、前記第2のバルブを作動させ、一酸化炭素の前記チャンバの中への流れを停止する、請求項13記載のワークピース処理システム。 - 前記コントローラは、
前記第2のバルブを作動させ、一酸化炭素を前記第2の温度の前記チャンバの中へ導入
する、請求項13記載のワークピース処理システム。 - 前記少なくとも1つの第1の処理ガスは塩素及び一酸化炭素を含み、前記金属はプラチナを含み、前記除去できる化合物は塩化カルボニルプラチナを含む、請求項11記載のワークピース処理システム。
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PCT/US2016/020267 WO2016148909A1 (en) | 2015-03-13 | 2016-03-01 | System and method for controllable non-volatile metal removal |
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TW409152B (en) * | 1996-06-13 | 2000-10-21 | Samsung Electronic | Etching gas composition for ferroelectric capacitor electrode film and method for etching a transition metal thin film |
JP4663059B2 (ja) | 2000-03-10 | 2011-03-30 | 東京エレクトロン株式会社 | 処理装置のクリーニング方法 |
US6642567B1 (en) * | 2000-08-31 | 2003-11-04 | Micron Technology, Inc. | Devices containing zirconium-platinum-containing materials and methods for preparing such materials and devices |
US6835665B2 (en) * | 2002-03-06 | 2004-12-28 | Hitachi High-Technologies Corporation | Etching method of hardly-etched material and semiconductor fabricating method and apparatus using the method |
JP4773109B2 (ja) * | 2005-02-28 | 2011-09-14 | 高砂香料工業株式会社 | 白金錯体及び発光素子 |
US8801952B1 (en) | 2013-03-07 | 2014-08-12 | Applied Materials, Inc. | Conformal oxide dry etch |
TWI591211B (zh) * | 2013-03-13 | 2017-07-11 | 應用材料股份有限公司 | 蝕刻包含過渡金屬的膜之方法 |
US9508561B2 (en) * | 2014-03-11 | 2016-11-29 | Applied Materials, Inc. | Methods for forming interconnection structures in an integrated cluster system for semicondcutor applications |
US9611552B2 (en) | 2015-03-13 | 2017-04-04 | Varian Semiconductor Equipment Associates, Inc. | System and method for controllable non-volatile metal removal |
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2015
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CN107429408B (zh) | 2019-10-01 |
US10633743B2 (en) | 2020-04-28 |
EP3268984A1 (en) | 2018-01-17 |
US20170159188A1 (en) | 2017-06-08 |
CN107429408A (zh) | 2017-12-01 |
US20180265988A1 (en) | 2018-09-20 |
JP2018509765A (ja) | 2018-04-05 |
US10000853B2 (en) | 2018-06-19 |
KR20170128439A (ko) | 2017-11-22 |
TW201634744A (zh) | 2016-10-01 |
WO2016148909A1 (en) | 2016-09-22 |
US9611552B2 (en) | 2017-04-04 |
EP3268984A4 (en) | 2018-11-14 |
US20160265121A1 (en) | 2016-09-15 |
TWI712706B (zh) | 2020-12-11 |
KR102462962B1 (ko) | 2022-11-03 |
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