JP6049147B2 - 未研磨ガラスウェハ、未研磨ガラスウェハを使用して半導体ウェハを薄厚化する薄厚化システム及び方法 - Google Patents
未研磨ガラスウェハ、未研磨ガラスウェハを使用して半導体ウェハを薄厚化する薄厚化システム及び方法 Download PDFInfo
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- JP6049147B2 JP6049147B2 JP2014513565A JP2014513565A JP6049147B2 JP 6049147 B2 JP6049147 B2 JP 6049147B2 JP 2014513565 A JP2014513565 A JP 2014513565A JP 2014513565 A JP2014513565 A JP 2014513565A JP 6049147 B2 JP6049147 B2 JP 6049147B2
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- 239000011521 glass Substances 0.000 title claims description 267
- 238000000034 method Methods 0.000 title claims description 47
- 239000004065 semiconductor Substances 0.000 title description 36
- 235000012431 wafers Nutrition 0.000 claims description 345
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 101
- 239000010703 silicon Substances 0.000 claims description 101
- 229910052710 silicon Inorganic materials 0.000 claims description 101
- 238000001816 cooling Methods 0.000 claims description 35
- 239000005357 flat glass Substances 0.000 claims description 35
- 239000006060 molten glass Substances 0.000 claims description 24
- 239000000853 adhesive Substances 0.000 claims description 21
- 230000001070 adhesive effect Effects 0.000 claims description 21
- 238000004519 manufacturing process Methods 0.000 claims description 20
- 230000003746 surface roughness Effects 0.000 claims description 19
- 230000008569 process Effects 0.000 claims description 15
- 238000000465 moulding Methods 0.000 claims description 13
- 238000012546 transfer Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 2
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- 230000003796 beauty Effects 0.000 claims 2
- 230000008719 thickening Effects 0.000 claims 2
- 239000000203 mixture Substances 0.000 description 41
- 238000010586 diagram Methods 0.000 description 17
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 13
- 238000005516 engineering process Methods 0.000 description 11
- 238000005498 polishing Methods 0.000 description 11
- 239000011734 sodium Substances 0.000 description 10
- 238000007789 sealing Methods 0.000 description 9
- 229910004298 SiO 2 Inorganic materials 0.000 description 8
- 230000007246 mechanism Effects 0.000 description 7
- 238000005352 clarification Methods 0.000 description 6
- 239000003507 refrigerant Substances 0.000 description 6
- 229910052708 sodium Inorganic materials 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 238000013459 approach Methods 0.000 description 5
- 239000005388 borosilicate glass Substances 0.000 description 5
- 238000003280 down draw process Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- 229910006404 SnO 2 Inorganic materials 0.000 description 4
- 239000002585 base Substances 0.000 description 4
- 238000013019 agitation Methods 0.000 description 3
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- 238000007496 glass forming Methods 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000003607 modifier Substances 0.000 description 3
- 238000007500 overflow downdraw method Methods 0.000 description 3
- 238000007517 polishing process Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- 229910021193 La 2 O 3 Inorganic materials 0.000 description 2
- 229910018068 Li 2 O Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
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- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 239000006025 fining agent Substances 0.000 description 2
- 238000007499 fusion processing Methods 0.000 description 2
- 239000005337 ground glass Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000000206 photolithography Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000004528 spin coating Methods 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- JULDKEYYPIYHLQ-UHFFFAOYSA-N 3-hydroxy-2-[[2-[(3-hydroxy-4-oxopyran-2-yl)methyl-methylamino]ethyl-methylamino]methyl]pyran-4-one Chemical compound O1C=CC(=O)C(O)=C1CN(C)CCN(C)CC=1OC=CC(=O)C=1O JULDKEYYPIYHLQ-UHFFFAOYSA-N 0.000 description 1
- 108010000722 Excitatory Amino Acid Transporter 1 Proteins 0.000 description 1
- 102100031563 Excitatory amino acid transporter 1 Human genes 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 229910000272 alkali metal oxide Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000005407 aluminoborosilicate glass Substances 0.000 description 1
- 239000005354 aluminosilicate glass Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000003286 fusion draw glass process Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000011214 refractory ceramic Substances 0.000 description 1
- 239000005368 silicate glass Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- 229910052845 zircon Inorganic materials 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B33/00—Severing cooled glass
- C03B33/02—Cutting or splitting sheet glass or ribbons; Apparatus or machines 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
-
- 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
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- 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
-
- 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
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/20—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground
- B24B7/22—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain
- B24B7/228—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain for grinding thin, brittle parts, e.g. semiconductors, wafers
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B17/00—Forming molten glass by flowing-out, pushing-out, extruding or drawing downwardly or laterally from forming slits or by overflowing over lips
- C03B17/06—Forming glass sheets
- C03B17/064—Forming glass sheets by the overflow downdraw fusion process; Isopipes therefor
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C19/00—Surface treatment of glass, not in the form of fibres or filaments, by mechanical means
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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
- H01L21/20—Deposition of semiconductor materials on a substrate, e.g. epitaxial growth solid phase epitaxy
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
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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
- H01L21/02—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
- H01L21/30604—Chemical etching
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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
- H01L21/302—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
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- H—ELECTRICITY
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- 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
- H01L21/683—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 for supporting or gripping
- H01L21/6835—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 for supporting or gripping using temporarily an auxiliary support
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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
- H01L21/683—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 for supporting or gripping
- H01L21/6835—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 for supporting or gripping using temporarily an auxiliary support
- H01L21/6836—Wafer tapes, e.g. grinding or dicing support tapes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2221/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof covered by H01L21/00
- H01L2221/67—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere
- H01L2221/683—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere for supporting or gripping
- H01L2221/68304—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere for supporting or gripping using temporarily an auxiliary support
- H01L2221/68327—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere for supporting or gripping using temporarily an auxiliary support used during dicing or grinding
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2221/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof covered by H01L21/00
- H01L2221/67—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere
- H01L2221/683—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere for supporting or gripping
- H01L2221/68304—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere for supporting or gripping using temporarily an auxiliary support
- H01L2221/6834—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere for supporting or gripping using temporarily an auxiliary support used to protect an active side of a device or wafer
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2221/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof covered by H01L21/00
- H01L2221/67—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere
- H01L2221/683—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere for supporting or gripping
- H01L2221/68304—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere for supporting or gripping using temporarily an auxiliary support
- H01L2221/68381—Details of chemical or physical process used for separating the auxiliary support from a device or wafer
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/21—Circular sheet or circular blank
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24628—Nonplanar uniform thickness material
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Manufacturing & Machinery (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Joining Of Glass To Other Materials (AREA)
Description
1.サイズ−3D IC 110の設置面積は、異なる技術を用いてパッケージ封止される同様の集積回路(IC)と比較してずっと小さい。図2(先行技術)は、長さが4インチ(10.16cm)であり、かつ従来の回路基板に搭載される32ギガバイト(GB)標準ICを8個実装する設計202を示し、そして各ICが、55マイクロメートル(μm)の厚さ、及び1ミリメートル(mm)の幅である8個のICを有する市販の32GB 3D(3次元)積層メモリ204の側面図を示している。
I.全体厚さバラツキ(Total Thickness Variation:TTV)−薄厚化対象のシリコンウェハのTTVは、ガラスキャリアウェハのTTVのみと同程度に良好である。シリコンウェハに関する要求が、更なる薄厚化に向かっているので、TTVは2.0μm未満にする必要がある。図3(先行技術)を参照するに、上側IC層304と下側IC層306との間の配線302状態の悪化をもたらした大きなTTVを有する例示的な3D IC構造300を示す模式図が図示されている。図4(先行技術)を参照するに、固定されていない(自由状態の)ガラスウェハ402の全表面408の最大厚さ(Tmax)上昇量404と最小厚さ(Tmin)上昇量406との間の差として定義されるTTVを説明するために使用されるガラスウェハ402の模式図が図示されている。
1.熱膨張係数(CTE)−−ガラスウェハ700は、約3.0ppm/℃〜3.5ppm/℃の範囲のCTEを有することができる。この場合、ガラスウェハ700及び半導体ウェハのCTEが一致する、または互いに少なくとも近接して一致し、この状態は、薄厚化プロセス中に、ガラスウェハ700が半導体ウェハに接合され、そして複合構造が熱サイクルを受ける可能性があるので望ましい場合が多い。ガラスウェハ700を当該ガラスウェハが約3.0ppm/℃〜約3.5ppm/℃の範囲のCTEを有するように形成するために使用することができる例示的な組成は:SiO2:64.0〜71.0;Al2O3:9.0〜12.0;B2O3:7.0〜12.0;MgO:1.0〜3.0;CaO:6.0〜11.5;SrO:0〜2.0;BaO:0〜0.1の公称組成(酸化物基準のモル百分率表示)を有し、この場合:(a)1.00≦Σ[RO]/[Al2O3]≦1.25の関係があり、式中、[Al2O3]は、Al2O3のモル百分率であり、そしてΣ[RO]は、MgO,CaO,SrO,及びBaOのモル百分率の合計に等しく、そして(b)ガラスは、以下の組成物特性:(i)酸化物基準で、ガラスが最大0.05モル百分率のSb2O3を含む;及び(ii)酸化物基準で、ガラスが最小0.01モル百分率のSnO2を含むという(i)及び(ii)のうちの少なくとも1つの組成物特性を有する(以後、この組成を“composition no.1(組成番号1)”と表記する)。
1.極めて低いコスト−研磨工程は、フュージョン法を用いてガラスウェハ700を製造する場合には必要ではない。
a.シリコンと一致するCTE
b.低アルカリ金属−Na濃度が、ホウケイ酸ガラスから形成される従来の研磨済みガラスウェハよりも約2桁低い。
“SHEET GLASS FORMING APPARATUS(板ガラス成形装置)”と題する国際公開第03/014032号パンフレット
“SHEET WIDTH CONTROL FOR OVERFLOW DOWNDRAW SHEET GLASS FORMING APPARATUS(オーバーフローダウンドロー板ガラス成形装置における板幅の制御)”と題する国際公開第05/081888号パンフレット
“METHOD FOR DETECTING CHANGE IN SHAPE OF A MOVING SUBSTRATE(動いている基板の形状変化を検出する方法)”と題する国際公開第09/070262号パンフレット
“APPARATUS AND METHOD FOR DRAWING A RIBBON OF GLASS(ガラスリボンを引き延ばす装置及び方法)”と題する米国特許出願公開第2010/0212360A1号明細書
“APPARATUS AND METHOD FOR CONTROLLING THICKNESS OF A FLOWING RIBBON OF MOLTEN GLASS(流下溶融ガラスリボンの厚さを制御する装置及び方法)”と題する米国特許出願公開第2011/0289969A1号明細書
A.筺体1602内の圧力(遮熱板1610と遮熱板1610との間の開口)の制御:筺体1602の内部及び外部に対する全ての圧力変動または大きな圧力差を、遮熱板1610と遮熱板1610との間の開口を調整することにより制御し、そして最小限に抑えることができ、この場合、圧力変動が生じると、これによって、熱移動が不均一となってしまい、これにより今度は、板ガラス1402の反り、及び厚さバラツキが大きくなる。
104 フリップチップ
106 積層チップ
108 パッケージ−オン−パッケージ
110 3次元集積回路(3D IC)
202 設計
204 3D積層メモリ
300 3D IC構造
302 配線
304 上側IC層
306 下側IC層
402,502,602 ガラスウェハ
404,708 最大厚さ(Tmin)上昇量
406,710 最小厚さ(Tmax)上昇量
408 全表面
504,506 最大距離
508,714 最高位点
510,716 最小二乗焦平面
512,720 最低位点
604 直線
700 未研磨ガラスウェハ
702 本体
704 未研磨の第1表面
706 未研磨の第2表面
708,710,712,714,716,718,720 凹凸
900,1000a,1000b 研磨済みガラスウェハ
902,1002a,1002b 第1面
904 第2面
1000a 第1ガラスウェハ
1000b 第2ガラスウェハ
1102 第1シリコンキャリアウェハ
1104 第2シリコンキャリアウェハ
1106 第3シリコンキャリアウェハ
1200 薄厚化する方法
1202 シリコンウェハ、半導体ウェハ
1202’ 薄厚化シリコンウェハ
1204,1212,1216,1218,1220,1224 工程
1206 第1表面
1208 回路チップ
1210 第2表面
1214 接合接着剤
1222 高精度孔
1226 ダイシングテープ、ラミネートテープ
1300 薄厚化システム
1302,1602 筺体
1304 支持台、真空チャック、静電チャック
1306 薄厚化装置
1400 ガラス製造システム
1402 未研磨板ガラス
1410 溶融槽
1412,1612,1620 矢印
1413 耐火性供給管
1415 清澄槽、清澄管
1418 フュージョンドロー成形装置
1420 撹拌槽、撹拌室
1425 供給槽、ボウル
1426 溶融ガラス
1427 接続管
1428 供給容器
1429 下降管
1430 アイソパイプ、成形装置本体
1435 引延ばしロールアセンブリ
1436 供給口
1437 樋
1438’,1438” 主側壁外面
1439 下頂部
1440 移動定盤(アンビル)
1502 供給管
1504’,1504” 内部側壁
1506 底面
1508 端部
1510 楔形/ウェッジ形本体
1512’,1512” 頂部稜線
1604 加熱素子
1606 内部壁、マッフル
1610 遮熱板
1614 冷却部材
1616 面
1618 冷媒供給管
A,B,C 最小二乗値
CTE 熱膨張係数
TTV 全体厚さバラツキ
θ 水平方向からの角度変位量
Claims (7)
- 互いに略平行である未研磨の第1表面及び未研磨の第2表面を含む本体を備えた、シリコンウェハを薄厚化するために使われる未研磨ガラスウェハにおいて、
前記本体は、6.0未満であるウェハ品質指標を有し、前記ウェハ品質指標は、マイクロメートルで表わされる全体厚さバラツキに、マイクロメートルで表わされる反りの10分の1を加算した値に等しく、前記全体厚さバラツキは、前記本体を断面で見たときの前記未研磨の第1表面と前記未研磨の第2表面との間の最大厚さ上昇量と最小厚さ上昇量との差であり、そして前記反りは、前記本体の形状に適用される最高位点と最小二乗焦平面との間の最大距離の絶対値、及び前記本体の前記形状に適用される最低位点と前記最小二乗焦平面との間の最大距離の絶対値の合計であり、前記最高位点及び前記最低位点は共に、前記本体の同じ未研磨表面から知ることができ、
前記未研磨の第1の表面が、5ÅRMS未満の表面粗さを有する、未研磨ガラスウェハ。 - 前記本体は、前記全体厚さバラツキが2.0μm未満であり、かつ前記反りが30μm未満である状態で0.7mmの厚さを有する、請求項1に記載の未研磨ガラスウェハ。
- 前記本体は、2.0μm未満の全体厚さバラツキを有する、請求項1に記載の未研磨ガラスウェハ。
- 前記本体は、60μm未満の反りを有する、請求項1に記載の未研磨ガラスウェハ。
- 前記本体は、0.4mm〜1.1mmの範囲に収まる厚さを有する、請求項1に記載の未研磨ガラスウェハ。
- シリコンウェハを、該シリコンウェハが未研磨ガラスウェハに仮接合されている状態で薄厚化する薄厚化システムであって、該薄厚化システムは:
筺体と、
該筺体内に設けられる支持台であって、該支持台の上に、互いに対して仮接合接着剤で接合される前記未研磨ガラスウェハ及び前記シリコンウェハが載置される、前記支持台と、
を備え、
前記シリコンウェハは、回路チップが第1表面に形成された状態の第1表面と、そして互いに略平行である第2表面と、を有し、
前記未研磨ガラスウェハは本体を有し、該本体は、互いに対して略平行である未研磨の第1表面及び未研磨の第2表面を含み、前記本体は、6.0未満であるウェハ品質指標を有し、前記ウェハ品質指標は、マイクロメートルで表わされる全体厚さバラツキに、マイクロメートルで表わされる反りの10分の1を加算した値に等しく、前記全体厚さバラツキは、前記本体を断面で見たときの前記未研磨の第1表面と前記未研磨の第2表面との間の最大厚さ上昇量と最小厚さ上昇量との差であり、そして前記反りは、前記本体の形状に適用される最高位点と最小二乗焦平面との間の最大距離の絶対値、及び前記本体の前記形状に適用される最低位点と前記最小二乗焦平面との間の最大距離の絶対値の合計であり、前記最高位点及び前記最低位点は共に、前記本体の同じ表面から知ることができ、前記未研磨の第1の表面が、5ÅRMS未満の表面粗さを有し、前記薄厚化システムは更に、
前記筺体内に設けられる薄厚化装置を備え、該薄厚化装置は、前記シリコンウェハの前記第2表面を、前記シリコンウェハが前記未研磨ガラスウェハに仮接合されている状態で薄厚化するために適する、
薄厚化システム。 - シリコンウェハを薄厚化するために使われる未研磨ガラスウェハを製造する方法であって、該方法は:
材料塊を溶融させ、そして溶融ガラスを形成する工程と、
前記溶融ガラスを流入させ、そして板ガラスを成形する成形装置を提供する工程と、
前記成形装置の周りに配置される筺体を備える装置を提供する工程であって、前記筺体が、開口を成形装置本体の下方に備えることにより、前記成形装置から流下している溶融ガラス流が、前記筺体から流れ出すことができ、前記装置は更に、前記成形装置の下方に配置され、かつ離間配置されることにより前記開口を形成する遮熱板群を備え、該遮熱板群は、前記成形装置からの放射熱損失を最小限に抑えるように構成され、各遮熱板は、前記溶融ガラス流に対して移動させることができ、前記装置は更に、前記遮熱板群に隣接配置される冷却部材群を備えるものである工程、
前記筺体内の圧力を制御する工程、
前記冷却部材群を制御する工程、および
前記遮熱板群の間の前記開口を最小にして、前記板ガラスへの熱移動の均一性を制御する工程、を含む、前記筺体を備える装置を提供する工程と、
前記板ガラスを引き延ばす工程と、
前記板ガラスを割断して異なる板ガラスにする工程と、
前記異なる板ガラスのうちの少なくとも1枚の板ガラスを切断して複数の未研磨ガラスウェハにする工程と、
を含み、
前記未研磨ガラスウェハの各々は:
互いに略平行である未研磨の第1表面及び未研磨の第2表面を含む本体を備え、
前記本体は、6.0未満であるウェハ品質指標を有し、前記ウェハ品質指標は、全体厚さバラツキ(μm)+[反り(μm)/10]に等しく、前記全体厚さバラツキは、前記本体を断面で見たときの前記未研磨の第1表面と前記未研磨の第2表面との間の最大厚さ上昇量と最小厚さ上昇量との差であり、そして前記反りは、前記本体の形状に適用される最高位点と最小二乗焦平面との間の最大距離の絶対値、及び前記本体の前記形状に適用される最低位点と前記最小二乗焦平面との間の最大距離の絶対値の合計であり、前記最高位点及び前記最低位点は共に、前記本体の同じ表面から知ることができ、
前記未研磨の第1の表面が、5ÅRMS未満の表面粗さを有する、
方法。
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US9227295B2 (en) | 2016-01-05 |
US9573835B2 (en) | 2017-02-21 |
US20160096767A1 (en) | 2016-04-07 |
CN103597578B (zh) | 2017-03-08 |
WO2012166446A1 (en) | 2012-12-06 |
US20120302063A1 (en) | 2012-11-29 |
JP2014517805A (ja) | 2014-07-24 |
EP2715780A1 (en) | 2014-04-09 |
KR20140045449A (ko) | 2014-04-16 |
TW201303989A (zh) | 2013-01-16 |
EP2715780A4 (en) | 2014-11-19 |
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