JP7168352B2 - 高速cmp研磨法 - Google Patents
高速cmp研磨法 Download PDFInfo
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- 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
- B24B37/26—Lapping pads for working plane surfaces characterised by the shape of the lapping pad surface, e.g. grooved
-
- 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
- B24B37/04—Lapping machines or devices; Accessories designed for working plane surfaces
- B24B37/042—Lapping machines or devices; Accessories designed for working plane surfaces operating processes therefor
-
- 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
- H01L21/3105—After-treatment
- H01L21/31051—Planarisation of the insulating layers
- H01L21/31053—Planarisation of the insulating layers involving a dielectric removal step
-
- 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
- H01L21/3105—After-treatment
- H01L21/31051—Planarisation of the insulating layers
- H01L21/31053—Planarisation of the insulating layers involving a dielectric removal step
- H01L21/31055—Planarisation of the insulating layers involving a dielectric removal step the removal being a chemical etching step, e.g. dry etching
- H01L21/31056—Planarisation of the insulating layers involving a dielectric removal step the removal being a chemical etching step, e.g. dry etching the removal being a selective chemical etching step, e.g. selective dry etching through a mask
-
- 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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- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Description
本出願は、2017年6月16日に出願され現在係属中の米国特許出願第15/624、964号(これは、2017年6月14日に出願され現在係属中の米国特許出願第15/623、195号の一部継続出願である)の一部継続出願である。
Claims (10)
- 半導体基板、光学基板、及び磁性基板の少なくとも1つのウェーハをケミカルメカニカル研磨又は平坦化する方法であって、前記方法は、
研磨パッドを回転させることであり、
前記研磨パッドが、ポリマーマトリックスと厚さとを有する研磨層を有し、
前記研磨層が、中心、外縁部、および前記研磨パッドの前記中心から前記外縁部へ延在する半径を含む;前記研磨層の放射状供給溝が、前記研磨層を複数の研磨領域に分割し、
前記研磨領域が、ウェーハの下での、滞留時間を調整するための偏倚を有し、
前記偏倚が、前記研磨領域を二等分する二等分線と、隣接する供給溝を接続する偏倚溝との間に偏倚角度θを有し、
前記偏倚角度θが、前記研磨パッドの前記中心の方へ内側に傾斜する内側偏倚角度θか、又は、前記研磨パッドの外周の方へ外側に傾斜する外側偏倚角度θ、のいずれかであり、
偏倚された溝の大部分が、前記ウェーハを、同じ方向に掃引し、
前記放射状供給溝が、少なくとも前記中心の近傍の位置から前記外縁部の近傍の位置まで延在し;且つ、
各研磨領域が、隣接する一対の放射状供給溝を接続する一連の偏倚された溝を含み、
前記偏倚された溝の大部分が、前記中心に向かう内側への偏倚、又は、前記研磨パッドの前記外縁部に向かう外側への偏倚を有しており、
前記内側へ及び外側へ偏倚された溝の両方共に、研磨流体を、前記研磨パッドの前記外縁部の方へ、且つ、前記各研磨領域内の前記一連の偏倚された溝内の前記研磨流体の外側への流れが、内側への偏倚又は外側への偏倚、及び、前記研磨パッドの回転方向に依存して、前記滞留時間を減少させるための前記ウェーハの方へ、又は、前記滞留時間を増加させるための前記ウェーハから離れる方へ、の何れかの方に移動される、ことと;
研磨流体を、前記回転する研磨パッド上に、且つ、前記放射状供給溝、及び、前記一連の偏倚された溝に分配すること;及び、
前記研磨パッドの前記中心から一定の距離で、前記研磨パッドの複数の回転で回転する研磨パッドに対して、前記ウェーハを押圧し且つ回転させることであり、
前記ウェーハが、前記ウェーハの少なくとも1構成要素の除去速度を増すように、前記研磨パッドの前記中心よりも、前記研磨パッドの前記外縁部により近く存在し、
ケミカルメカニカル研磨又は平坦化中のスラリーの分配を改善するため、前記各放射状供給溝への研磨流体の流れを容易にするように、隣接する各研磨領域の間で各偏倚溝を整列させない、こと、
を包含している、
上記方法。 - 前記研磨パッドを回転させることでは、前記ウェーハの下に新しい研磨流体を流すことを可能にするために、使用済みの研磨流体を、前記一連の偏倚された溝の一部分を通して、前記研磨パッドの外縁部を越えて送る、請求項1に記載の方法。
- 前記一連の偏倚された溝は、前記ウェーハの下の前記研磨流体の滞留時間を増加させるような平行な溝の形状となる、請求項1に記載の方法。
- 前記一連の偏倚された溝は、前記ウェーハの下の前記研磨流体の滞留時間を減少させるような平行な溝の形状となる、請求項1に記載の方法。
- 前記研磨パッドの回転は、前記ウェーハを、1つの放射状供給溝の上に存在する状態と、2つの放射状供給溝の上に存在する状態と、を交互に繰り返させる、請求項1に記載の方法。
- 半導体基板、光学基板、及び磁性基板の少なくとも1つのウェーハをケミカルメカニカル研磨又は平坦化する方法であって、前記方法は、
研磨パッドを回転させることであり、
前記研磨パッドが、ポリマーマトリックスと厚さとを有する研磨層を有し、
前記研磨層が、中心、外縁部、および前記研磨パッドの前記中心から前記外縁部へ延在する半径を含む;研磨層の放射状供給溝が、前記研磨層を複数の研磨領域に分割し、
前記研磨領域が、ウェーハの下での、滞留時間を調整するための偏倚を有し、
前記偏倚が、前記研磨領域を二等分する二等分線と、隣接する供給溝を接続する偏倚溝との間に偏倚角度θを有し、
前記偏倚角度θが、前記研磨パッドの前記中心の方へ内側に傾斜する内側偏倚角度θか、又は、前記研磨パッドの外周の方へ外側に傾斜する外側偏倚角度θ、のいずれかであり、
偏倚された溝の大部分が、前記ウェーハを、同じ方向に掃引し、
前記研磨領域が、2つの隣接する放射状供給溝によって画定された扇形であり、前記研磨領域が二等分線で二等分され、
前記放射状供給溝が、少なくとも前記中心に近接する位置から前記外縁部に近接する位置まで延在し;且つ、
各研磨領域が、隣接する一対の放射状供給溝を接続する一連の偏倚された溝を含み、
前記偏倚された溝の大部分が、前記二等分線から20°~85°の角度で研磨パッドの前記中心に向かう内側への偏倚、又は、前記二等分線から95°~160°の角度で前記研磨パッドの前記外縁部に向かう外側への偏倚を有し、
前記内側へ、及び、外側へ偏倚された溝の両方共に、研磨流体を前記研磨パッドの外縁部の方へ、且つ、前記各研磨領域内の前記一連の偏倚された溝内の前記研磨流体の外側への流れが、内側への偏倚又は外側への偏倚、及び、前記研磨パッドの回転方向に依存して、前記滞留時間を減少させるための前記ウェーハの方へ、又は、前記滞留時間を増加させるための前記ウェーハから離れる方へ、の何れかの方に移動される、ことと;
研磨流体を、前記回転する研磨パッド上に、且つ、前記放射状供給溝、及び、前記一連の偏倚された溝に分配すること;及び、
前記研磨パッドの前記中心から一定の距離で、前記研磨パッドの複数の回転で回転する研磨パッドに対して、前記ウェーハを押圧し且つ回転させることであり、
前記ウェーハが、前記ウェーハの少なくとも1構成要素の除去速度を増すように、前記研磨パッドの前記中心よりも、前記研磨パッドの前記外縁部により近く、存在し、
ケミカルメカニカル研磨又は平坦化中のスラリーの分配を改善するため、前記各放射状供給溝への研磨流体の流れを容易にするように、隣接する各研磨領域の間で各偏倚溝を整列させない、こと、
を包含している、
上記方法。 - 前記研磨パッドを回転させることでは、前記ウェーハの下に新しい研磨流体を流すことを可能にするために、使用済みの研磨流体を、前記一連の偏倚された溝の一部分を通して、前記研磨パッドの外縁部を越えて送る、請求項6に記載の方法。
- 前記一連の偏倚された溝は、前記ウェーハの下の前記研磨流体の滞留時間を増加させるような平行な溝の形状となる、請求項6に記載の方法。
- 前記一連の偏倚された溝は、前記ウェーハの下の前記研磨流体の滞留時間を減少させるような平行な溝の形状となる、請求項6に記載の方法。
- 前記研磨パッドの回転は、前記ウェーハを、1つの放射状供給溝の上に存在する状態と2つの放射状供給溝の上に存在する状態と、を交互に繰り返させる、請求項6に記載の方法。
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201715623195A | 2017-06-14 | 2017-06-14 | |
US15/623,195 | 2017-06-14 | ||
US201715624964A | 2017-06-16 | 2017-06-16 | |
US15/624,964 | 2017-06-16 | ||
US15/725,876 US10857647B2 (en) | 2017-06-14 | 2017-10-05 | High-rate CMP polishing method |
US15/725,876 | 2017-10-05 |
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JP2019034402A JP2019034402A (ja) | 2019-03-07 |
JP7168352B2 true JP7168352B2 (ja) | 2022-11-09 |
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US (1) | US10857647B2 (ja) |
JP (1) | JP7168352B2 (ja) |
KR (1) | KR102660718B1 (ja) |
CN (1) | CN109079648B (ja) |
DE (1) | DE102018004633A1 (ja) |
FR (1) | FR3067627B1 (ja) |
SG (1) | SG10201804561QA (ja) |
TW (1) | TWI775852B (ja) |
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KR102247186B1 (ko) | 2018-11-08 | 2021-05-04 | 주식회사 엘지화학 | 전도성 농축 수지 조성물, 전도성 폴리아미드 수지 조성물, 이의 제조방법 및 성형품 |
TWI718508B (zh) * | 2019-03-25 | 2021-02-11 | 智勝科技股份有限公司 | 研磨墊、研磨墊的製造方法以及研磨方法 |
KR20210116759A (ko) | 2020-03-13 | 2021-09-28 | 삼성전자주식회사 | Cmp 패드 및 이를 구비하는 화학적 기계적 연마 장치 |
KR20220116312A (ko) * | 2020-11-05 | 2022-08-22 | 어플라이드 머티어리얼스, 인코포레이티드 | 수평 버핑 모듈 |
Citations (4)
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US20180361532A1 (en) | 2018-12-20 |
SG10201804561QA (en) | 2019-01-30 |
CN109079648B (zh) | 2021-07-20 |
TWI775852B (zh) | 2022-09-01 |
FR3067627A1 (fr) | 2018-12-21 |
CN109079648A (zh) | 2018-12-25 |
KR20180136373A (ko) | 2018-12-24 |
FR3067627B1 (fr) | 2022-07-08 |
KR102660718B1 (ko) | 2024-04-26 |
DE102018004633A1 (de) | 2018-12-20 |
US10857647B2 (en) | 2020-12-08 |
TW201908058A (zh) | 2019-03-01 |
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