KR101100951B1 - 스택 장치의 제작에서 베이스 웨이퍼 관통 비아를 형성시키는 방법 - Google Patents
스택 장치의 제작에서 베이스 웨이퍼 관통 비아를 형성시키는 방법 Download PDFInfo
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- KR101100951B1 KR101100951B1 KR1020090093329A KR20090093329A KR101100951B1 KR 101100951 B1 KR101100951 B1 KR 101100951B1 KR 1020090093329 A KR1020090093329 A KR 1020090093329A KR 20090093329 A KR20090093329 A KR 20090093329A KR 101100951 B1 KR101100951 B1 KR 101100951B1
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- Prior art keywords
- base wafer
- wafer
- slurry
- acid
- base
- Prior art date
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- 238000000034 method Methods 0.000 title claims abstract description 118
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- 229910052802 copper Inorganic materials 0.000 claims abstract description 91
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 90
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- 239000010703 silicon Substances 0.000 claims abstract description 66
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 65
- 229910052751 metal Inorganic materials 0.000 claims abstract description 43
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- 239000002002 slurry Substances 0.000 claims description 121
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- 238000005498 polishing Methods 0.000 claims description 56
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- MVFCKEFYUDZOCX-UHFFFAOYSA-N iron(2+);dinitrate Chemical compound [Fe+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MVFCKEFYUDZOCX-UHFFFAOYSA-N 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
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- 238000003908 quality control method Methods 0.000 description 1
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- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(iv) oxide Chemical compound O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 description 1
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- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
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- IIACRCGMVDHOTQ-UHFFFAOYSA-N sulfamic acid Chemical compound NS(O)(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-N 0.000 description 1
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- BJAARRARQJZURR-UHFFFAOYSA-N trimethylazanium;hydroxide Chemical compound O.CN(C)C BJAARRARQJZURR-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- H01L21/70—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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09G—POLISHING COMPOSITIONS; SKI WAXES
- C09G1/00—Polishing compositions
- C09G1/02—Polishing compositions containing abrasives or grinding agents
-
- 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
-
- 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
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/12—Mountings, e.g. non-detachable insulating substrates
-
- 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]
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
Description
성분 | 실시예 1: 대조군 SR330 As-is | 실시예 2: 대조군 SR330 w/H2O2 pH 11 |
시톤® SR330(wt%, H2O2 첨가 전에 희석된 시중의 생성물) | 2.4 | 2.38 |
H2O(wt%) | 97.6 | 96.62 |
시트르산(wt%) | 0 | 0 |
카테콜(wt%) | 0 | 0 |
암모늄 히드록사이드(wt%) | 0 | 0 |
TMAH(wt%) | 0 | 0 |
콜로이드 실리카(wt%) | 0 | 0 |
H2O2(wt%) | 0 | 1 |
PIA(wt%) | 0 | 0 |
H2O2 첨가 전의 pH | ~11 | ~11 |
H2O2 첨가 후의 pH | - | ~10.8 |
7psi에서의 Cu의 제거속도(Å/min) | 60 | 32 |
7psi에서의 실리콘의 제거속도(Å/min) | 12000 | 0 |
Si:Cu 선택도 | 255 | 0 |
성분 | 실시예 3: 20675-38-2 w/1% H2O2 | 실시예 4: 20675-58-2 w/1% PIA | 실시예 5: 20675-58-3 w/3% PIA |
시톤® SR330(wt%, H2O2 첨가 전에 희석된 시중의 생성물) | 2.38 | 0 | 0 |
H2O | 96.62 | 100이 되게 하는 양 | 100이 되게 하는 양 |
HT 50 | 0 | 5 | 5 |
TMAH | 0 | 3 | 3 |
NH4OH | 0 | 0 | 0 |
구아니딘 카보네이트 | 0 | 5 | 5 |
카톤 | 0 | 0.0001 | 0.0001 |
H2O2 | 1 | 0 | 0 |
PIA | 0 | 1 | 3 |
PIA 첨가전의 pH | 10.31 | 13.34 | 13.16 |
PIA 또는 H2O2 첨가 후의 pH | 10.2 | 13.16 | 11.45 |
7psi에서의 Cu의 제거속도(Å/min) | 32 | 2476 | 4368 |
7psi에서의 실리콘의 제거속도(Å/min) | 0 | 15502 | 12466 |
Si:Cu 선택도 | 0 | 6.3 | 2.9 |
성분* | 실시예 6: pH 11 | 실시예 7: pH 7 |
콜로이드 실리카(wt%) | 5 | 5 |
PIA(wt%) | 1 | 1 |
PIA 첨가 전의 pH | 11.94 | 6.88 |
PIA 첨가 후의 pH | 10.92 | 1.77 |
7psi, 30sec에서의 Cu의 제거속도(Å/min) | 5904 | 208 |
7psi, 600sec에서의 실리콘의 제거속도(Å/min) | 6317 | 4253 |
Si:Cu 선택도 | 1 | 20 |
성분 | 실시예 8: 2wt% DETA | 실시예 9: 5wt% DETA | 실시예 10 G.C. | 실시예 11: DETA | 실시예 12: TMAH |
디에틸렌트리아민 | 2 | 5 | 0 | 5 | 0 |
구아니딘 카보네이트(wt%) | 0 | 0 | 5 | 0 | 0 |
TMAH(wt%) | 0 | 0 | 3 | 3 | 3 |
EDTA 염 | 0 | 0 | 0 | 0 | 5 |
카톤(wt%) | 0 | 0 | 0.0001 | 0.0001 | 0.0001 |
콜로이드 실리카(wt%) | 5 | 5 | 0 | 5 | 5 |
HNO3 | 0 | 0 | 0 | 0 | 0 |
PIA(wt%) | 1 | 1 | 1 | 1 | 1 |
PIA 첨가 전의 pH | 11.57 | 11.74 | 13.34 | 10.98 | 13.65 |
PIA 첨가 후의 pH | 10.28 | 10.8 | 13.16 | 10.58 | 13.23 |
7psi, 30sec에서의 Cu의 제거속도(Å/min) | 815 | 1092 | 2476 | 1394 | 1736 |
7psi, 600sec에서의 실리콘의 제거속도(Å/min) | 14138 | 13790 | 15502 | 13901 | 11820 |
Si:Cu 선택도 | 17 | 12.6 | 6 | 10 | 7 |
성분* | 실시예 13: | 실시예 14: | 실시예 15: | 실시예 16: |
시트르산(wt%) | 0.05 | 0 | 0 | 0.05 |
글리신(wt%) | 1 | 0 | 0 | 0 |
PIA 첨가 전 암모늄 히드록사이드(wt%) pH 조절제 | pH 조절을 위해(<1.5 wt%) | pH 조절을 위해(<1.5 wt%) | pH 조절을 위해(<1.5 wt%) | pH 조절을 위해(<1.5 wt%) |
질산 | 0 | 0.05 | 0 | 0 |
아세트산 | 0 | 0 | 0.05 | 0 |
콜로이드 실리카(wt%) | 5 | 5 | 5 | 5 |
PIA(wt%) | 1 | 1 | 1 | 1 |
PIA 첨가 전 pH | 10.91 | 10.99 | 10.99 | 11 |
PIA 첨가 후 pH | 10.76 | 9.83 | 9.98 | 9.95 |
7psi, 30sec에서의 Cu의 제거속도(Å/min) | (>24000)# | 15656 | (>28000)# | 14026 |
7psi, 600sec에서의 실리콘의 제거속도(Å/min) | 16424 | 9630 | 16701 | 9781 |
Si:Cu 선택도 | 0.69 | 0.62 | 0.59 | 0.70 |
성분 | 실시예 17 | 실시예 18 | 실시예 19 |
패드 | 토마스 웨스트 711 | IC1000 | IC1010 |
시트르산(wt%) | 0.05 | 0.05 | 0.05 |
글리신(wt%) | 0.01 | 0.01 | 0.01 |
PIA 첨가 전 암모늄 히드록사이드(wt%) pH 조절제 | pH 조절에 충분한 양(<1.5 wt%) | pH 조절에 충분한 양(<1.5 wt%) | pH 조절에 충분한 양(<1.5 wt%) |
콜로이드 실리카(wt%) | 5 | 5 | 5 |
PIA(wt%) | 1 | 1 | 1 |
PIA 첨가 전 pH | 10.91 | 10.91 | 10.91 |
PIA 첨가 후 pH | 10.2 | 10.2 | 10.2 |
7psi, 60sec에서의 Cu의 제거속도(Å/min) | 15260 | 14064 | 14678 |
7psi, 10min에서의 실리콘의 제거속도(Å/min) | 11590 | 12816 | 15921 |
Si:Cu 선택도 | 0.76 | 0.91 | 1.08 |
성분 | 실시예 20: 100ppm 다에텍 | 실시예 21: 100ppm DP512 | 실시예 22: 100ppm BTA | 실시예 23: 100ppm MAFO13 MOD1 | 실시예 24: 100ppm CDI4302D |
시트르산(wt%) | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 |
글리신(wt%) | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 |
PIA 첨가 전 암모늄 히드록사이드(wt%) pH 조절제 | pH 조절에 충분한 양(<1.5 wt%) | pH 조절에 충분한 양(<1.5 wt%) | pH 조절에 충분한 양(<1.5 wt%) | pH 조절에 충분한 양(<1.5 wt%) | pH 조절에 충분한 양(<1.5 wt%) |
BTA(wt%) | 0 | 0 | 0.01 | 0.002 | 0.002 |
DP512 | 0 | 0.01 | 0 | 0 | 0 |
다에텍 | 0.01 | 0 | 0 | 0 | 0 |
Mafo 13MOD1 | 0 | 0 | 0 | 0.01 | 0 |
CDI4302D | 0 | 0 | 0 | 0 | 0.01 |
콜로이드 실리카(wt%) | 5 | 5 | 5 | 5 | 5 |
PIA(wt%) | 1 | 1 | 1 | 1 | 1 |
PIA 첨가 전 pH | 10.99 | 10.98 | 10.98 | 10.9 | 10.9 |
PIA 첨가 후 pH | 10.5 | 10.4 | 10.3 | 10.7 | 10.2 |
7psi, 30sec에서의 Cu의 제거속도(Å/min) | 7298 | 8638 | 6874 | 9280 | 8778 |
7psi, 300sec에서의 실리콘의 제거속도(Å/min) | 13807 | 13797 | 14584 | 12484 | 15631 |
7psi, 30sec에서의 TiN의 제거속도(Å/min) | NA | NA | NA | 1768 | 1560 |
Si:Cu 선택도 | 0.53 | 0.63 | 0.47 | 0.74 | 0.56 |
성분* | 실시예 25: 10ppm MAFO | 실시예 26:25ppm MAFO | 실시예 27:50ppm MAFO | 실시예 28: 100ppm MAFO |
시트르산(wt%) | 0.05 | 0.05 | 0.05 | 0.05 |
글리신(wt%) |
0.01 | 0.01 | 0.01 | 0.01 |
PIA 첨가 전 암모늄 히드록사이드(wt%) pH 조절제 | pH 조절을 위해(<1.5 wt%) | pH 조절을 위해(<1.5 wt%) | pH 조절을 위해(<1.5 wt%) | pH 조절을 위해(<1.5 wt%) |
MAFO13MOD1 | 0.001 | 0.0025 | 0.005 | 0.01 |
콜로이드 실리카 (wt%) |
5 | 5 | 5 | 5 |
PIA(wt%) | 1 | 1 | 1 | 1 |
PIA 첨가 전 pH | 10.97 | 10.96 | 10.85 | 10.9 |
PIA 첨가 후 pH | 10.4 | 10.5 | 10.6 | 10.7 |
7psi, 30sec에서의 Cu의 제거속도(Å /min) |
10884 | 10598 | 9384 | 9280 |
7psi,300sec에서의 실리콘의 제거속도 (Å/min) |
13085 | 12847 | 11856 | 12484 |
7psi, 30sec에서의 TiN의 제거속도(Å/min) | 1042 | 1016 | 898 | 1768 |
7psi, 30sec에서의 TEOS의 제거속도(Å/min) | 1134 | 1088 | 1015 | NA |
Si:Cu 선택도 | 0.83 | 0.82 | 0.79 | 0.74 |
성분 | 실시예 29: 20ppm BTA | 실시예 30: 100ppm BTA |
시트르산(wt%) | 0.05 | 0.05 |
글리신(wt%) | 0.01 | 0.01 |
PIA 첨가 전 암모늄 히드록사이드(wt%) pH 조절제 | pH 조절에 충분한 양(<1.5 wt%) | pH 조절에 충분한 양(<1.5 wt%) |
BTA(wt%) | 0.002 | 0.01 |
콜로이드 실리카(wt%) | 5 | 5 |
PIA(wt%) | 1 | 1 |
PIA 첨가 전 pH | 10.97 | 10.98 |
PIA 첨가 후 pH | 10.5 | 10.3 |
7psi, 30sec에서의 Cu의 제거속도(Å/min) | 10980 | 6874 |
7psi,300sec에서의 실리콘의 제거속도(Å/min) | 14081 | 14584 |
Si:Cu 선택도 | 0.78 | 0.47 |
성분 | 실시예 31: | 실시예 32: | 실시예 33: | 실시예 34: |
시트르산(wt%) | 0.05 | 0.05 | 0.05 | 0.05 |
글리신(wt%) | 0.01 | 0.01 | 0.01 | 0.01 |
PIA 첨가 전 암모늄 히드록사이드(wt%) pH 조절제 | pH 조절을 위해(<1.5 wt%) | pH 조절을 위해(<1.5 wt%) | pH 조절을 위해(<1.5 wt%) | pH 조절을 위해(<1.5 wt%) |
MAFO13MOD1 | 0.005 | 0.005 | 0.005 | 0.005 |
콜로이드 실리카 (wt%) |
5 | 5 | 5 | 5 |
PIA(wt%) | 0.1 | 0.5 | 1 | 1.25 |
PIA 첨가 전 pH | 10.98 | 10.96 | 10.85 | 10.93 |
PIA 첨가 후 pH | 10.92 | 10.8 | 10.3 | 10.5 |
7psi, 30sec에서의 Cu의 제거속도(Å/min) | 2610 | 6322 | 9384 | 12082 |
7psi, 300sec에서의 실리콘의 제거속도(Å/min) | 9924 | 12078 | 11856 | 12482 |
7psi, 30sec에서의 TiN의 제거속도(Å/min) | 882 | 642 | 898 | 770 |
7psi, 30sec에서의 TEOS의 제거속도(Å/min) | 778 | 1025 | 1015 | 1245 |
Si:Cu 선택도 | 0.26 | 0.52 | 0.79 | 0.97 |
성분 | 실시예 35: | 실시예 36: | 실시예 37: |
시트르산(wt%) | 0.05 | 0.05 | 0.05 |
글리신(wt%) | 0.01 | 0.01 | 0.01 |
PIA 첨가 전 암모늄 히드록사이드(wt%) pH 조절제 | pH 조절을 위 해(<1.5 wt%) |
pH 조절을 위 해(<1.5 wt%) |
pH 조절을 위 해(<1.5 wt%) |
다에텍 부식 억제제(wt%) | 0.005 | 0.005 | 0.005 |
콜로이드 실리카(wt%) | 5 | 5 | 5 |
PIA(wt%) | 0.25 | 1 | 2 |
PIA 첨가 전 pH | 10.97 | 10.98 | 10.98 |
PIA 첨가 후 pH | 10.9 | 9.8 | 10.8 |
7psi, 30sec에서의 Cu의 제거속도(Å/min) | 3380 | 15104 | 4790 |
7psi,300sec에서의 실리콘의 제거속도(Å/min) | 12714 | 14712 | 11281 |
7psi, 30sec에서의 TiN의 제거속도(Å/min) | 1270 | 1126 | 856 |
7psi, 30sec에서의 TEOS의 제거속도(Å/min) | 717 | 1145 | 596 |
Si:Cu 선택도 | 0.27 | 1.02 | 0.42 |
성분* | 실시예 38 |
시트르산(wt%) | 0.05 |
글리신(wt%) | 0.01 |
암모늄 옥살레이트 일수화물 | 0.05 |
PIA 첨가 전 암모늄 히드록사이드(wt%) pH 조절제 | pH 조절을 위해(<1.5 wt%) |
BTA(wt%) | 0.002 |
콜로이드 실리카(wt%) | 5 |
PIA(wt%) | 1 |
PIA 첨가 전 pH | 10.93 |
PIA 첨가 후 pH | 9.88 |
7psi, 60sec에서의 Cu의 제거속도(Å/min) | 14486 |
7psi, 10min에서의 실리콘의 제거속도(Å/min) | 15953 |
Si:Cu 선택도 | 0.91 |
성분* | 실시예 39 | 실시예 40 | 실시예 41 | 실시예 42 |
시트르산(wt%) | 0.05 | 0.05 | 0.05 | 0.05 |
글리신(wt%) | 0.01 | 0.01 | 0.01 | 0.01 |
PIA 첨가 전 암모늄 히드록사이드(wt%) pH 조절제 | pH 조절을 위 해(<1.5 wt%) |
pH 조절을 위해(<1.5 wt%) | pH 조절을 위 해(<1.5 wt%) |
pH 조절을 위해(<1.5 wt%) |
BTA(wt%) | 0.002 | 0.002 | 0.002 | 0.002 |
콜로이드 실리카(wt%) | 1 | 3 | 7 | 9 |
PIA(wt%) | 1 | 1 | 1 | 1 |
PIA 첨가 전 pH | ~10.9 | ~10.9 | ~10.9 | ~10.9 |
PIA 첨가 후 pH | 10.5 | 10.4 | 10.5 | 10.6 |
7psi, 30sec에서의 Cu의 제거속도(Å/min) | 10716 | 11636 | 11438 | 10006 |
7psi,300sec에서의 실리콘의 제거속도(Å/min) | 15138 | 16350 | 16151 | 15638 |
7psi, 30sec에서의 TiN의 제거속도(Å/min) | 708 | 1076 | 1510 | 1788 |
Si:Cu 선택도 | 0.71 | 0.71 | 0.71 | 0.64 |
성분* | 실시예 43 | 실시예 44 |
시트르산(wt%) | 0 | 0 |
글리신(wt%) | 0 | 0 |
암모늄 히드록사이드(wt%) | 0 | 0 |
BTA(wt%) | 0 | 0 |
콜로이드 실리카(wt%) | 10 | 10 |
PIA(wt%) | 0 | 1 |
PIA 첨가 전 pH | 10.88 | 11.01 |
PIA 첨가 후 pH | NA | 9.1 |
7psi, 30sec에서의 Cu의 제거속도(Å/min) | <1 | 9760 |
7psi, 300sec에서의 실리콘의 제거속도(Å/min) | 3622 | 13051 |
7psi, 30sec에서의 TiN의 제거속도(Å/min) | NA | 884 |
7psi, 30sec에서의 TEOS의 제거속도(Å/min) | NA | 2387 |
Si:Cu 선택도 | 0.049 | 0.75 |
샘플 | 온도(℃) | 정적 식각률(Å/min), 2개 해독값의 평균 |
대조군: SR330 | 실온 | 2.6 |
부식억제제 비첨가 | 실온 | 102.05 |
500ppm 암모늄 옥살레이트 | 실온 | 74.7 |
100ppm BTA | 실온 | 너무 부식되어 해독 불가능 |
100ppm DP512 | 실온 | 74.7 |
100ppm 다에텍 | 실온 | 67.25 |
대조군:SR330 | 40 | 0 |
부식 억제제 비첨가 | 40 | 228.2 |
500ppm 암모늄 옥살레이트 | 40 | 너무 부식되어 해독 불가능 |
100ppm BTA | 40 | 너무 부식되어 해독 불가능 |
100ppm DP512 | 40 | 286.7 |
100ppm 다에텍 | 40 | 177.25 |
샘플 | 온도(℃) | 정적 식각률(Å/min), |
대조군 SR330 | 실온 | 0 |
50ppm MAFO, 0.1% PIA | 실온 | 50 |
50ppm MAFO, 0.5% PIA | 실온 | 116 |
50ppm MAFO, 1.25% PIA | 실온 | 512 |
대조군 SR330 | 40 | 0 |
50ppm MAFO, 0.1% PIA | 40 | 262 |
50ppm MAFO, 0.5% PIA | 40 | 277 |
50ppm MAFO, 1.25% PIA | 40 | 너무 부식되어 해독 불가능 |
슬러리 유속 | ||||
250mL/min | 200mL/min | 150mL/min | 100mL/min | |
Si | 13654 | 13656 | 14031 | 14993 |
Cu | 10144 | 9434 | 8202 | 7096 |
선택도(Cu/Si) | 0.74 | 0.69 | 0.58 | 0.47 |
Claims (31)
- 두 개 이상의 베이스 웨이퍼를 포함하는 조립체를 구성하는 방법으로서,a) 전면 및 후면을 구비한 제 1 베이스 웨이퍼를 제공하는 단계로서, 전면이 이 위에 배치된 집적 회로를 포함하고, 베이스 웨이퍼가, 전도성 금속을 포함하며 베이스 웨이퍼의 전방으로부터 베이스 웨이퍼를 통해 부분적으로 또는 전체적으로 연장되는 하나 이상의 전도성 비아(via)를 포함하는 단계;b) 위에 집적회로를 구비한 베이스 웨이퍼의 전면을 캐리어에 고정시키는 단계;c) 베이스 웨이퍼의 후면을 연마 패드 및 제 1 CMP 슬러리와 접촉시키는 단계로서, 제 1 CMP 슬러리가1) 액체 캐리어,2) 과요오드산 또는 이의 염, 과염소산 또는 이의 염, 과황산 또는 이의 염, 과망간산 또는 이의 염, 오존, 산화은 및 불소 원소로 구성되는 군으로부터 선택된, 0.1 내지 20중량%의 산화제,3) 연마제, 및4) 하나 이상의 금속 킬레이트제를 포함하는 단계; 및d) 하나 이상의 전도성 비아가 노출될 때까지 베이스 웨이퍼의 후면을 연마시키는 단계로서, 제 1 베이스 웨이퍼가 7 psi 또는 그 미만의 하향력(down force)에서 분당 5,000 옹스트롬 이상의 속도로 제 1 CMP 슬러리를 이용하여 연마되는 단계를 포함하는, 두 개 이상의 베이스 웨이퍼를 포함하는 조립체를 구성하는 방법.
- 제 1항에 있어서, 제 1 베이스 웨이퍼가 실리콘 웨이퍼인, 두 개 이상의 베이스 웨이퍼를 포함하는 조립체를 구성하는 방법.
- 제 1항에 있어서, 전도성 금속이 구리 및 텅스텐으로 구성되는 군으로부터 선택되는, 두 개 이상의 베이스 웨이퍼를 포함하는 조립체를 구성하는 방법.
- 제 1항에 있어서, 산화제가 과요오드산 또는 이의 염, 과염소산 또는 이의 염, 및 과황산 또는 이의 염으로 구성되는 군으로부터 선택되는, 두 개 이상의 베이스 웨이퍼를 포함하는 조립체를 구성하는 방법.
- 제 1항에 있어서, 산화제가 과요오드산인, 두 개 이상의 베이스 웨이퍼를 포함하는 조립체를 구성하는 방법.
- 제 1항에 있어서, 금속 킬레이트제가 구조식 H2N-R-COOH(상기 식에서, R은 탄소수 1 내지 6개의 선형 또는 분지형 알킬 기이다)의 아미노카르복실산을 포함하는, 두 개 이상의 베이스 웨이퍼를 포함하는 조립체를 구성하는 방법.
- 제 6항에 있어서, 금속 킬레이트제가 히드록시-카르복실산을 추가로 포함하는, 두 개 이상의 베이스 웨이퍼를 포함하는 조립체를 구성하는 방법.
- 제 6항에 있어서, 금속 킬레이트제가 글리신인, 두 개 이상의 베이스 웨이퍼를 포함하는 조립체를 구성하는 방법.
- 제 8항에 있어서, 금속 킬레이트제가 시트르산과 조합된 글리신인, 두 개 이상의 베이스 웨이퍼를 포함하는 조립체를 구성하는 방법.
- 제 1항에 있어서, 제 1 베이스 웨이퍼가 7 psi 또는 그 미만의 하향력으로 분당 10,000 옹스트롬 이상의 속도로 슬러리를 이용하여 연마되는, 두 개 이상의 베이스 웨이퍼를 포함하는 조립체를 구성하는 방법.
- 제 1항에 있어서, 슬러리가 0.0005 내지 0.1중량%의 부식 억제제를 추가로 포함하는, 두 개 이상의 베이스 웨이퍼를 포함하는 조립체를 구성하는 방법.
- 제 1항에 있어서, 슬러리가 0.01 내지 5중량%의 시트레이트 염을 포함하는, 두 개 이상의 베이스 웨이퍼를 포함하는 조립체를 구성하는 방법.
- 제 1항에 있어서, 슬러리가 0.01 내지 5중량%의 과요오드산, 0.3 내지 1.5중량%의 암모늄 히드록사이드를 포함하고 pH가 8 내지 14인, 두 개 이상의 베이스 웨이퍼를 포함하는 조립체를 구성하는 방법.
- 제 1항에 있어서, 액체 캐리어가 물을 포함하는, 두 개 이상의 베이스 웨이퍼를 포함하는 조립체를 구성하는 방법.
- 제 11항에 있어서, 부식 억제제가 페놀 화합물인, 두 개 이상의 베이스 웨이퍼를 포함하는 조립체를 구성하는 방법.
- 제 15항에 있어서, 제 1 CMP 슬러리 내의 페놀 화합물이 0.001 내지 5중량% 수준에서 존재하는 카테콜인, 두 개 이상의 베이스 웨이퍼를 포함하는 조립체를 구성하는 방법.
- 제 1항에 있어서, 전도성 금속에 대한 제 1 베이스 웨이퍼의 선택도가 0.5 내지 2.0의 범위 내인, 두 개 이상의 베이스 웨이퍼를 포함하는 조립체를 구성하는 방법.
- 제 1항에 있어서, 베이스 웨이퍼가 7 psi 또는 그 미만의 하향력으로 분당 7,500 옹스트롬 이상의 속도로 제 1 CMP 슬러리를 이용하여 연마되는, 두 개 이상의 베이스 웨이퍼를 포함하는 조립체를 구성하는 방법.
- 제 1항에 있어서, 제 1 CMP 슬러리의 pH가 염기성인, 두 개 이상의 베이스 웨이퍼를 포함하는 조립체를 구성하는 방법.
- 제 1항에 있어서, 베이스 웨이퍼의 후면을 화학 기계적으로 연마시키기 전에 베이스 웨이퍼의 후면에 그라인딩(grinding) 단계가 실시되지 않는, 두 개 이상의 베이스 웨이퍼를 포함하는 조립체를 구성하는 방법.
- 제 1항에 있어서, 베이스 웨이퍼의 후면을 화학 기계적으로 연마시키기 전에 베이스 웨이퍼의 후면에 그라인딩 단계가 실시되는, 두 개 이상의 베이스 웨이퍼를 포함하는 조립체를 구성하는 방법.
- 제 1항에 있어서, 베이스 웨이퍼의 후면을 제 1 CMP 슬러리를 이용하여 연마시키기 전에 베이스 웨이퍼의 후면을 사전 처리 슬러리로 CMP시키는 단계를 추가로 포함하며, 상기 사전 처리 슬러리는 7 psi의 하향력으로 분당 5,000 옹스트롬 이상의 속도로 베이스 웨이퍼를 연마시키는, 두 개 이상의 베이스 웨이퍼를 포함하는 조립체를 구성하는 방법.
- 제 1항에 있어서, 전도성 금속을 포함하며 베이스 웨이퍼의 전면으로부터 연장되는 하나 이상의 전도성 비아가, 전도성 금속이 실리콘을 통해 이동하지 않도록 구성된 배리어 물질을 추가로 포함하고,상기 방법은 베이스 웨이퍼의 후면을 제 1 CMP 슬러리로 연마시킨 후에 베이스 웨이퍼의 후면을 제 2 CMP 슬러리로 연마시키는 단계로서, 상기 제 2 CMP 슬러리가 0.6 내지 1.5의, 배리어 물질에 대한 전도성 금속의 선택도를 갖는 단계를 추가로 포함하는, 두 개 이상의 베이스 웨이퍼를 포함하는 조립체를 구성하는 방법.
- 제 1항에 있어서, 하나 이상의 노출된 비아를 포함하는 제 2 베이스 웨이퍼를, 제 1 베이스 웨이퍼의 후면 상의 하나 이상의 전도성 비아로 전기적으로 접속시키는 것을 추가로 포함하는, 두 개 이상의 베이스 웨이퍼를 포함하는 조립체를 구성하는 방법.
- 제 1항에 있어서, 제 1 베이스 웨이퍼를 연마시킨 후에 제 1 베이스 웨이퍼의 후면 상에 회로를 형성시키는 단계로서, 상기 회로의 일부 또는 전부를 제 1 베이스 웨이퍼의 후면 상의 하나 이상의 노출된 전도성 비아로 전기적으로 접속시키는 단계를 추가로 포함하는, 두 개 이상의 베이스 웨이퍼를 포함하는 조립체를 구성하는 방법.
- 두 개의 웨이퍼를 포함하는 조립체를 구성하는 방법으로서,a) 전면 및 후면을 구비한 실리콘 베이스 웨이퍼를 제공하는 단계로서, 전면이 이 위에 배치된 집적 회로를 포함하고, 실리콘 베이스 웨이퍼가, 전도성 금속을 포함하며 실리콘 베이스 웨이퍼의 전방으로부터 실리콘 베이스 웨이퍼를 통해 부분적으로 또는 전체적으로 연장되는 하나 이상의 전도성 비아를 포함하는 단계;b) 실리콘 베이스 웨이퍼의 전면을 캐리어에 고정시키는 단계;c) 실리콘 베이스 웨이퍼의 후면을 연마 패드 및 제 1 CMP 슬러리와 접촉시키는 단계로서, 제 1 CMP 슬러리가1) 물,2) 0.05 내지 10중량%의 과요오드산,3) 연마제, 및4) 하나 이상의 유기 산 또는 아미노-카르복실산을 포함하는 단계; 및d) 하나 이상의 전도성 비아가 노출될 때까지 웨이퍼 후면을 연마시키는 단계로서, 제 1 CMP 슬러리가 7 psi 또는 그 미만의 하향력으로 분당 10,000 옹스트롬 이상의 속도로 실리콘을 연마시키는 단계를 포함하는, 두 개의 웨이퍼를 포함하는 조립체를 구성하는 방법.
- 제 26항에 있어서, 실리콘 베이스 웨이퍼의 후면을 화학 기계적으로 연마시키기 전에 실리콘 베이스 웨이퍼의 후면에 그라인딩 단계가 실시되지 않는, 두 개의 웨이퍼를 포함하는 조립체를 구성하는 방법.
- 제 26항에 있어서, 제 1 CMP 슬러리가 시트르산 및 글리신을 포함하는, 두 개의 웨이퍼를 포함하는 조립체를 구성하는 방법.
- 제 26항에 있어서, 구리에 대한 실리콘의 선택도가 0.5 내지 1.5의 범위 내인, 두 개의 웨이퍼를 포함하는 조립체를 구성하는 방법.
- 제 26항에 있어서, 하나 이상의 노출된 비아를 포함하는 제 2 실리콘 웨이퍼를, 제 1 베이스 웨이퍼의 후면 상의 하나 이상의 전도성 비아로 전기적으로 접속시키는 것을 추가로 포함하는, 두 개의 웨이퍼를 포함하는 조립체를 구성하는 방법.
- 제 26항에 있어서, 제 1 CMP 슬러리가 10.5 내지 11.5의 pH를 갖는, 두 개의 웨이퍼를 포함하는 조립체를 구성하는 방법.
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JP4528100B2 (ja) * | 2004-11-25 | 2010-08-18 | 新光電気工業株式会社 | 半導体装置及びその製造方法 |
US8163049B2 (en) * | 2006-04-18 | 2012-04-24 | Dupont Air Products Nanomaterials Llc | Fluoride-modified silica sols for chemical mechanical planarization |
US8853830B2 (en) * | 2008-05-14 | 2014-10-07 | Taiwan Semiconductor Manufacturing Company, Ltd. | System, structure, and method of manufacturing a semiconductor substrate stack |
-
2008
- 2008-09-30 US US12/242,002 patent/US20100081279A1/en not_active Abandoned
-
2009
- 2009-09-28 TW TW098132764A patent/TW201013771A/zh unknown
- 2009-09-30 KR KR1020090093329A patent/KR101100951B1/ko active IP Right Grant
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Publication number | Publication date |
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KR20100037013A (ko) | 2010-04-08 |
TW201013771A (en) | 2010-04-01 |
US20100081279A1 (en) | 2010-04-01 |
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