KR100831405B1 - 웨이퍼 본딩 패키징 방법 - Google Patents
웨이퍼 본딩 패키징 방법 Download PDFInfo
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- KR100831405B1 KR100831405B1 KR1020060097218A KR20060097218A KR100831405B1 KR 100831405 B1 KR100831405 B1 KR 100831405B1 KR 1020060097218 A KR1020060097218 A KR 1020060097218A KR 20060097218 A KR20060097218 A KR 20060097218A KR 100831405 B1 KR100831405 B1 KR 100831405B1
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- 238000000034 method Methods 0.000 title claims abstract description 78
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 21
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 71
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 71
- 239000010703 silicon Substances 0.000 claims abstract description 71
- 238000005530 etching Methods 0.000 claims abstract description 47
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- 238000001039 wet etching Methods 0.000 claims abstract description 4
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 230000004888 barrier function Effects 0.000 claims description 7
- 229910052804 chromium Inorganic materials 0.000 claims description 7
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 7
- 229910052718 tin Inorganic materials 0.000 claims description 7
- 239000013078 crystal Substances 0.000 claims description 6
- 238000001312 dry etching Methods 0.000 claims description 6
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 229910052697 platinum Inorganic materials 0.000 claims description 5
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 5
- 229910052719 titanium Inorganic materials 0.000 claims description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 238000000151 deposition Methods 0.000 claims description 4
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- 238000007747 plating Methods 0.000 claims description 3
- 229910015363 Au—Sn Inorganic materials 0.000 claims description 2
- 229910020836 Sn-Ag Inorganic materials 0.000 claims description 2
- 229910020988 Sn—Ag Inorganic materials 0.000 claims description 2
- 229910052763 palladium Inorganic materials 0.000 claims description 2
- 229910008599 TiW Inorganic materials 0.000 claims 2
- 229910004166 TaN Inorganic materials 0.000 claims 1
- 229920001940 conductive polymer Polymers 0.000 claims 1
- 238000005498 polishing Methods 0.000 claims 1
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- 238000012536 packaging technology Methods 0.000 abstract description 2
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- 239000010949 copper Substances 0.000 description 6
- 229910000679 solder Inorganic materials 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 238000001771 vacuum deposition Methods 0.000 description 4
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- 238000012858 packaging process Methods 0.000 description 3
- 239000002356 single layer Substances 0.000 description 3
- 238000004544 sputter deposition Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
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- 238000000347 anisotropic wet etching Methods 0.000 description 2
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- 239000010953 base metal Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/02—Containers; Seals
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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
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76898—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics formed through a semiconductor substrate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B81—MICROSTRUCTURAL TECHNOLOGY
- B81C—PROCESSES OR APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OR TREATMENT OF MICROSTRUCTURAL DEVICES OR SYSTEMS
- B81C1/00—Manufacture or treatment of devices or systems in or on a substrate
- B81C1/00015—Manufacture or treatment of devices or systems in or on a substrate for manufacturing microsystems
- B81C1/00261—Processes for packaging MEMS devices
- B81C1/00301—Connecting electric signal lines from the MEMS device with external electrical signal lines, e.g. through vias
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/02—Containers; Seals
- H01L23/04—Containers; Seals characterised by the shape of the container or parts, e.g. caps, walls
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/02—Containers; Seals
- H01L23/10—Containers; Seals characterised by the material or arrangement of seals between parts, e.g. between cap and base of the container or between leads and walls of the container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B81—MICROSTRUCTURAL TECHNOLOGY
- B81B—MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICAL DEVICES
- B81B2203/00—Basic microelectromechanical structures
- B81B2203/03—Static structures
- B81B2203/0369—Static structures characterized by their profile
- B81B2203/0384—Static structures characterized by their profile sloped profile
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B81—MICROSTRUCTURAL TECHNOLOGY
- B81B—MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICAL DEVICES
- B81B2207/00—Microstructural systems or auxiliary parts thereof
- B81B2207/09—Packages
- B81B2207/091—Arrangements for connecting external electrical signals to mechanical structures inside the package
- B81B2207/097—Interconnects arranged on the substrate or the lid, and covered by the package seal
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01079—Gold [Au]
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- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
- Micromachines (AREA)
Abstract
Description
Claims (13)
- 뚜껑 실리콘 웨이퍼의 전면 및 후면에 식각방지막을 형성하는 단계;상기 식각방지막을 패터닝하여 상기 뚜껑 실리콘 웨이퍼의 후면에 캐비티 식각창을 형성하고, 상기 뚜껑 실리콘 웨이퍼의 전면에 비아홀 식각창 - 상기 캐비티 식각창에 오버랩됨 - 을 형성하는 단계;상기 캐비티 식각창 및 상기 비아홀 식각창에 의해 노출된 상기 뚜껑 실리콘 웨이퍼를 습식식각하여 캐비티 및 비아홀을 형성하되, 상기 캐비티와 상기 비아홀 사이에 일정 두께의 실리콘 격막이 잔류하도록 하는 단계;상기 캐비티가 형성된 상기 뚜껑 실리콘 웨이퍼의 후면에 캐비티 인터커넥션 및 웨이퍼 본딩 패드를 형성하는 단계;상기 비아홀을 추가적으로 식각하여 상기 캐비티 인터커넥션을 노출시키는 관통 비아홀을 형성하는 단계;상기 관통 비아홀이 형성된 상기 뚜껑 실리콘 웨이퍼의 전면에 상기 캐비티 인터커넥션에 접촉되는 비아홀 인터커넥션을 형성하는 단계;금속접착물질을 이용하여, 상기 캐비티의 외곽에 위치하는 상기 캐비티 인터커넥션 상에 소자접촉 패드를 형성하고, 상기 웨이퍼 본딩 패드 상에 밀봉링을 형성하는 단계; 및상기 뚜껑 실리콘 웨이퍼와 소자가 형성된 소자용 웨이퍼를 본딩하는 단계를 포함하는 웨이퍼 본딩 패키징 방법.
- 제1항에 있어서,상기 관통 비아홀을 형성하는 단계에서,상기 뚜껑 실리콘 웨이퍼의 전면에 대하여 전면 건식 식각을 수행하는 것을 특징으로 하는 웨이퍼 본딩 패키징 방법.
- 제1항에 있어서,상기 관통 비아홀을 형성하는 단계는,상기 비아홀 내부를 제외한 상기 뚜껑 실리콘 웨이퍼의 전면을 덮는 포토레지스트 패턴을 형성하는 단계;상기 포토레지스트 패턴을 식각 마스크로 하는 건식 식각을 실시하여 상기 비아홀 내부의 실리콘을 추가적으로 식각하여 상기 관통 비아홀을 형성하는 단계; 및상기 관통 비아홀이 형성된 상기 뚜껑 실리콘 웨이퍼의 전면부 전체 표면에 대하여 상기 관통 비아홀의 음각 프로파일이 제거될 정도의 깊이로 기계적인 연마를 실시하는 단계를 포함하는 것을 특징으로 하는 웨이퍼 본딩 패키징 방법.
- 제1항 또는 제3항에 있어서,상기 캐비티 및 비아홀을 형성하는 단계 수행 후,상기 뚜껑 실리콘 웨이퍼의 전면 및 후면에 잔류하는 상기 식각방지막을 제거하는 단계를 더 포함하는 것을 특징으로 하는 웨이퍼 본딩 패키징 방법.
- 제1항 또는 제3항에 있어서,상기 뚜껑 실리콘 웨이퍼는 (100) 결정면을 가진 실리콘 웨이퍼이며, 상기 캐비티 식각창 및 상기 비아홀 식각창은 [110] 결정방향과 평행하게 정렬된 것을 특징으로 하는 웨이퍼 본딩 패키징 방법.
- 제1항 또는 제3항에 있어서,상기 식각방지막은 실리콘산화막, 실리콘질화막, 실리콘산화막/실리콘질화막 적층막 중 어느 하나로 이루어진 것을 특징으로 하는 웨이퍼 본딩 패키징 방법.
- 제4항에 있어서,상기 뚜껑 실리콘 웨이퍼의 전면 및 후면에 잔류하는 상기 식각방지막을 제거하는 단계 수행 후,상기 뚜껑 실리콘 웨이퍼의 전면, 후면 중 적어도 어느 하나의 표면에 유전체막을 형성하는 단계를 더 포함하는 것을 특징으로 하는 웨이퍼 본딩 패키징 방법.
- 제1항 또는 제3항에 있어서,상기 캐비티 인터커넥션 및 상기 웨이퍼 본딩 패드와, 상기 비아홀 인터커넥션은 각각 리프트-오프법을 통해 형성하는 것을 특징으로 하는 웨이퍼 본딩 패키징 방법.
- 제1항 또는 제3항에 있어서,상기 캐비티 인터커넥션 및 상기 웨이퍼 본딩 패드와, 상기 비아홀 인터커넥션은 각각 선택적 식각법을 통해 형성하는 것을 특징으로 하는 웨이퍼 본딩 패키징 방법.
- 제1항 또는 제3항에 있어서,상기 캐비티 인터커넥션 및 상기 웨이퍼 본딩 패드와, 상기 비아홀 인터커넥션은 각각 하지 금속층을 증착한 후 그 상부에 도금법으로 추가 금속막을 형성하는 방법으로 형성하는 것을 특징으로 하는 웨이퍼 본딩 패키징 방법.
- 제1항 또는 제3항에 있어서,상기 캐비티 인터커넥션 및 상기 웨이퍼 본딩 패드는,Ti, Cr, TiN, TiW 중 선택된 적어도 어느 하나의 최하금속층과,Ni, Pt, Cu, Pd, TiN, TiW, TaN 중 선택된 적어도 어느 하나의 확산방지금속층과,Au 최상금속층을 포함하는 것을 특징으로 하는 웨이퍼 본딩 패키징 방법.
- 제1항에 있어서,상기 금속접착물질은 Au, Sn, Au-Sn 합금, Sn-Ag 합금, Au/Sn 적층 금속막, 이방성 전도성 폴리머 중 선택된 적어도 어느 하나로 이루어진 것을 특징으로 하는 웨이퍼 본딩 패키징 방법.
- 제12항에 있어서,상기 금속접착물질 하부에 Ni, Pt, Cr/Ni, Ti/Ni, Cr/Pt 중 선택된 어느 하나의 확산방지금속층을 더 포함하는 것을 특징으로 하는 웨이퍼 본딩 패키징 방법.
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KR1020060097218A KR100831405B1 (ko) | 2006-10-02 | 2006-10-02 | 웨이퍼 본딩 패키징 방법 |
US11/866,277 US20080081398A1 (en) | 2006-10-02 | 2007-10-02 | Cap Wafer for Wafer Bonded Packaging and Method for Manufacturing the Same |
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KR1020060097218A KR100831405B1 (ko) | 2006-10-02 | 2006-10-02 | 웨이퍼 본딩 패키징 방법 |
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KR100831405B1 true KR100831405B1 (ko) | 2008-05-21 |
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Publication number | Priority date | Publication date | Assignee | Title |
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KR101185451B1 (ko) * | 2008-11-24 | 2012-10-02 | 앰코 테크놀로지 코리아 주식회사 | 반도체 장치 및 그 제조 방법 |
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US8084866B2 (en) | 2003-12-10 | 2011-12-27 | Micron Technology, Inc. | Microelectronic devices and methods for filling vias in microelectronic devices |
US7091124B2 (en) | 2003-11-13 | 2006-08-15 | Micron Technology, Inc. | Methods for forming vias in microelectronic devices, and methods for packaging microelectronic devices |
US20050247894A1 (en) | 2004-05-05 | 2005-11-10 | Watkins Charles M | Systems and methods for forming apertures in microfeature workpieces |
US7232754B2 (en) | 2004-06-29 | 2007-06-19 | Micron Technology, Inc. | Microelectronic devices and methods for forming interconnects in microelectronic devices |
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