JP2022126751A - ケミカルメカニカル研磨パッド - Google Patents
ケミカルメカニカル研磨パッド Download PDFInfo
- Publication number
- JP2022126751A JP2022126751A JP2022097801A JP2022097801A JP2022126751A JP 2022126751 A JP2022126751 A JP 2022126751A JP 2022097801 A JP2022097801 A JP 2022097801A JP 2022097801 A JP2022097801 A JP 2022097801A JP 2022126751 A JP2022126751 A JP 2022126751A
- Authority
- JP
- Japan
- Prior art keywords
- polishing
- cmp polishing
- cmp
- substrate
- layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 4
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- HOSGXJWQVBHGLT-UHFFFAOYSA-N 6-hydroxy-3,4-dihydro-1h-quinolin-2-one Chemical group N1C(=O)CCC2=CC(O)=CC=C21 HOSGXJWQVBHGLT-UHFFFAOYSA-N 0.000 description 3
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- 239000012298 atmosphere Substances 0.000 description 2
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- SBJCUZQNHOLYMD-UHFFFAOYSA-N 1,5-Naphthalene diisocyanate Chemical compound C1=CC=C2C(N=C=O)=CC=CC2=C1N=C=O SBJCUZQNHOLYMD-UHFFFAOYSA-N 0.000 description 1
- PVXVWWANJIWJOO-UHFFFAOYSA-N 1-(1,3-benzodioxol-5-yl)-N-ethylpropan-2-amine Chemical compound CCNC(C)CC1=CC=C2OCOC2=C1 PVXVWWANJIWJOO-UHFFFAOYSA-N 0.000 description 1
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- RQEOBXYYEPMCPJ-UHFFFAOYSA-N 4,6-diethyl-2-methylbenzene-1,3-diamine Chemical compound CCC1=CC(CC)=C(N)C(C)=C1N RQEOBXYYEPMCPJ-UHFFFAOYSA-N 0.000 description 1
- NWIVYGKSHSJHEF-UHFFFAOYSA-N 4-[(4-amino-3,5-diethylphenyl)methyl]-2,6-diethylaniline Chemical compound CCC1=C(N)C(CC)=CC(CC=2C=C(CC)C(N)=C(CC)C=2)=C1 NWIVYGKSHSJHEF-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/11—Lapping tools
- B24B37/20—Lapping pads for working plane surfaces
- B24B37/24—Lapping pads for working plane surfaces characterised by the composition or properties of the pad materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3225—Polyamines
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6603—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6607—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
- C08G18/6611—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203 having at least three hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
-
- 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
- H01L21/302—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
- H01L21/304—Mechanical treatment, e.g. grinding, polishing, cutting
-
- 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
- H01L21/302—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
- H01L21/30625—With simultaneous mechanical treatment, e.g. mechanico-chemical polishing
-
- 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
- H01L21/32115—Planarisation
- H01L21/3212—Planarisation by chemical mechanical polishing [CMP]
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Abstract
Description
本発明者らは、半導体ウェーハー又はデバイス基材の金属表面のCMP研磨をして、不良率を減少させ、かつ同時に該基材表面上の金属のディッシングを減少させることを可能にするという問題の解決を模索してきた。
ヒドロキシル当量=56100/ヒドロキシル基数
下の表1は本発明の研磨層と先行技術サンプルの組成を要約したものである。
Claims (10)
- 半導体ウェーハー、磁性又は光学基材の金属表面をCMP研磨する方法であって、
研磨層に最上研磨表面を有するCMP研磨パッドを用いて基材をCMP研磨することを含み、
前記研磨層が、
8.5~9.5重量%の未反応NCO基を有するイソシアネート末端ウレタンプレポ リマーと;
硬化剤成分であって、
硬化剤成分の固形分重量に基づいて60.3~70重量%の、6000~15,0 00の数平均分子量を有し、かつ1分子あたり平均5~7個のヒドロキシル基を有 するポリオール硬化剤、及び
硬化剤成分の固形分重量に基づいて30~39.7重量%の多官能芳香族アミン硬 化剤
を含む硬化剤成分と
の反応生成物を含み、
前記研磨層が、非充填又は更なる空孔がなければ、室温で脱イオン(DI)水に1週間浸漬した後の吸水率が4~8重量%であり、かつショアーD硬度の範囲が28~64であり、
前記最上研磨表面が前記基材の金属表面を平坦化及び研磨するように適合され、それにより低不良率と最小度のディッシングを有する共平面の金属及び絶縁又は酸化物層表面を形成する、
CMP研磨方法。 - 前記CMP研磨が、前記イソシアネート末端ウレタンプレポリマーと、硬化剤成分の固形分重量に基づいて60.6~65重量%のポリオール硬化剤を含む硬化剤成分との反応生成物を含む研磨層を有するCMP研磨パッドを用いて基材をCMP研磨することを含む請求項1に記載の方法。
- 前記CMP研磨が、
イソシアネート末端ウレタンプレポリマーと、
硬化剤成分であって、
ポリオール硬化剤、及び
4,4’‐メチレン‐ビス‐(2‐クロロアニリン)(MBOCA)、4,4’‐ メチレン‐ビス‐(3‐クロロ‐2,6‐ジエチルアニリン)(MCDEA)、ジ エチルトルエンジアミン(DETDA);3,5‐ジメチルチオ‐2,4‐トルエ ンジアミン(DMTDA)、それらの異性体、又はそれらの混合物のいずれかであ る2官能性硬化剤
を含む硬化剤成分と
の反応生成物を含む研磨層を有するCMP研磨パッドを用いて基材をCMP研磨することを含む請求項1に記載の方法。 - 前記CMP研磨が、30~60の範囲のショアーD硬度を有する研磨層を有するCMP研磨パッドを用いて基材をCMP研磨することを含む請求項1に記載の方法。
- 前記CMP研磨が、35~55の範囲のショアーD硬度を有する研磨層を有するCMP研磨パッドを用いて基材をCMP研磨することを含む請求項1に記載の方法。
- 前記CMP研磨が、前記イソシアネート末端ウレタンプレポリマー中の未反応NCO基に対する前記硬化剤成分中の反応性水素基(NH2とOH基の合計として定義される)の化学量論比が0.85:1~1.15:1の範囲である反応生成物である研磨層を有するCMP研磨パッドを用いて基材をCMP研磨することを含む請求項1に記載の方法。
- 半導体ウェーハーにおける銅又はタングステン含有金属表面をCMP研磨することを含む請求項1に記載の方法。
- 前記CMP研磨が、いかなるジオールも実質的に含まない硬化剤成分の反応生成物から本質的になる研磨層を有する前記CMP研磨パッドを用いて基材をCMP研磨することを含む請求項1に記載の方法。
- 前記CMP研磨が、0.4~1.15の比重(SG)を有し、かつ非充填又は更なる空孔がないとき、1.1~1.2の比重(SG)を有する反応生成物である研磨層を有するCMP研磨パッドを用いて基材をCMP研磨することを含む請求項1に記載の方法。
- 前記CMP研磨が、ガス充填又は中空微小要素を含む研磨層を有するCMP研磨パッドを用いて基材をCMP研磨することを含む請求項1に記載の方法。
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US15/476,404 US20180281149A1 (en) | 2017-03-31 | 2017-03-31 | Chemical mechanical polishing pad |
JP2018045188A JP2018171702A (ja) | 2017-03-31 | 2018-03-13 | ケミカルメカニカル研磨パッド |
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US10464188B1 (en) * | 2018-11-06 | 2019-11-05 | Rohm And Haas Electronic Materials Cmp Holdings, Inc. | Chemical mechanical polishing pad and polishing method |
US10569384B1 (en) * | 2018-11-06 | 2020-02-25 | Rohm And Haas Electronic Materials Cmp Holdings, Inc. | Chemical mechanical polishing pad and polishing method |
KR102174958B1 (ko) * | 2019-03-27 | 2020-11-05 | 에스케이씨 주식회사 | 결함 발생을 최소화시키는 연마패드 및 이의 제조방법 |
TWI827890B (zh) * | 2019-10-23 | 2024-01-01 | 南韓商Sk恩普士股份有限公司 | 用於研磨墊之組成物及研磨墊 |
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