JP7350106B2 - イメージセンサ及びその製造方法 - Google Patents
イメージセンサ及びその製造方法 Download PDFInfo
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- JP7350106B2 JP7350106B2 JP2022004093A JP2022004093A JP7350106B2 JP 7350106 B2 JP7350106 B2 JP 7350106B2 JP 2022004093 A JP2022004093 A JP 2022004093A JP 2022004093 A JP2022004093 A JP 2022004093A JP 7350106 B2 JP7350106 B2 JP 7350106B2
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- conductive
- substrate
- image sensor
- dielectric layer
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- 238000004519 manufacturing process Methods 0.000 title claims description 57
- 239000004065 semiconductor Substances 0.000 claims description 237
- 239000000758 substrate Substances 0.000 claims description 235
- 238000000034 method Methods 0.000 claims description 149
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- 230000015572 biosynthetic process Effects 0.000 description 16
- 238000009792 diffusion process Methods 0.000 description 16
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 15
- 239000010703 silicon Substances 0.000 description 15
- 229910052710 silicon Inorganic materials 0.000 description 15
- 239000012212 insulator Substances 0.000 description 14
- 229910052581 Si3N4 Inorganic materials 0.000 description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 12
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 12
- 229910052814 silicon oxide Inorganic materials 0.000 description 12
- 229910052751 metal Inorganic materials 0.000 description 11
- 239000002184 metal Substances 0.000 description 11
- 238000005229 chemical vapour deposition Methods 0.000 description 10
- 238000000231 atomic layer deposition Methods 0.000 description 8
- 238000013461 design Methods 0.000 description 8
- 230000003287 optical effect Effects 0.000 description 8
- 239000010949 copper Substances 0.000 description 7
- 239000003989 dielectric material Substances 0.000 description 7
- 238000011049 filling Methods 0.000 description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 6
- 230000006870 function Effects 0.000 description 6
- 230000015654 memory Effects 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 5
- 229910052796 boron Inorganic materials 0.000 description 5
- 229910044991 metal oxide Inorganic materials 0.000 description 5
- 150000004706 metal oxides Chemical class 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- 238000005240 physical vapour deposition Methods 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 229910052785 arsenic Inorganic materials 0.000 description 4
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 4
- 239000005360 phosphosilicate glass Substances 0.000 description 4
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 4
- 229910000881 Cu alloy Inorganic materials 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 3
- 238000000206 photolithography Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- GPXJNWSHGFTCBW-UHFFFAOYSA-N Indium phosphide Chemical compound [In]#P GPXJNWSHGFTCBW-UHFFFAOYSA-N 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- UMIVXZPTRXBADB-UHFFFAOYSA-N benzocyclobutene Chemical compound C1=CC=C2CCC2=C1 UMIVXZPTRXBADB-UHFFFAOYSA-N 0.000 description 2
- 239000005388 borosilicate glass Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000005137 deposition process Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 229910052732 germanium Inorganic materials 0.000 description 2
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 229910000449 hafnium oxide Inorganic materials 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910001092 metal group alloy Inorganic materials 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 229920002577 polybenzoxazole Polymers 0.000 description 2
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- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 229910052712 strontium Inorganic materials 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- 229910016570 AlCu Inorganic materials 0.000 description 1
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910052692 Dysprosium Inorganic materials 0.000 description 1
- 229910052691 Erbium Inorganic materials 0.000 description 1
- 229910052693 Europium Inorganic materials 0.000 description 1
- 229910052688 Gadolinium Inorganic materials 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 229910052689 Holmium Inorganic materials 0.000 description 1
- 229910000673 Indium arsenide Inorganic materials 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- 229910052777 Praseodymium Inorganic materials 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- 229910000577 Silicon-germanium Inorganic materials 0.000 description 1
- 229910052771 Terbium Inorganic materials 0.000 description 1
- 229910052775 Thulium Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910052769 Ytterbium Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 description 1
- ILCYGSITMBHYNK-UHFFFAOYSA-N [Si]=O.[Hf] Chemical compound [Si]=O.[Hf] ILCYGSITMBHYNK-UHFFFAOYSA-N 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- MIQVEZFSDIJTMW-UHFFFAOYSA-N aluminum hafnium(4+) oxygen(2-) Chemical compound [O-2].[Al+3].[Hf+4] MIQVEZFSDIJTMW-UHFFFAOYSA-N 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 238000001444 catalytic combustion detection Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- -1 combinations thereof Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
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- 230000000779 depleting effect Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- AJNVQOSZGJRYEI-UHFFFAOYSA-N digallium;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Ga+3].[Ga+3] AJNVQOSZGJRYEI-UHFFFAOYSA-N 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
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- 229910052733 gallium Inorganic materials 0.000 description 1
- 229910001195 gallium oxide Inorganic materials 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- ZQXQADNTSSMHJI-UHFFFAOYSA-N hafnium(4+) oxygen(2-) tantalum(5+) Chemical compound [O-2].[Ta+5].[Hf+4] ZQXQADNTSSMHJI-UHFFFAOYSA-N 0.000 description 1
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- RPQDHPTXJYYUPQ-UHFFFAOYSA-N indium arsenide Chemical compound [In]#[As] RPQDHPTXJYYUPQ-UHFFFAOYSA-N 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- 238000000608 laser ablation Methods 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
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- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 1
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- 238000005498 polishing Methods 0.000 description 1
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- 238000005096 rolling process Methods 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 229910052706 scandium Inorganic materials 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 238000005019 vapor deposition process Methods 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
- H01L27/144—Devices controlled by radiation
- H01L27/146—Imager structures
- H01L27/14683—Processes or apparatus peculiar to the manufacture or treatment of these devices or parts thereof
- H01L27/14685—Process for coatings or optical elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
- H01L27/144—Devices controlled by radiation
- H01L27/146—Imager structures
- H01L27/14601—Structural or functional details thereof
- H01L27/1463—Pixel isolation structures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
- H01L27/144—Devices controlled by radiation
- H01L27/146—Imager structures
- H01L27/14601—Structural or functional details thereof
- H01L27/1462—Coatings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
- H01L27/144—Devices controlled by radiation
- H01L27/146—Imager structures
- H01L27/14601—Structural or functional details thereof
- H01L27/1462—Coatings
- H01L27/14623—Optical shielding
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
- H01L27/144—Devices controlled by radiation
- H01L27/146—Imager structures
- H01L27/14601—Structural or functional details thereof
- H01L27/14636—Interconnect structures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
- H01L27/144—Devices controlled by radiation
- H01L27/146—Imager structures
- H01L27/14601—Structural or functional details thereof
- H01L27/1464—Back illuminated imager structures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
- H01L27/144—Devices controlled by radiation
- H01L27/146—Imager structures
- H01L27/14643—Photodiode arrays; MOS imagers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
- H01L27/144—Devices controlled by radiation
- H01L27/146—Imager structures
- H01L27/14683—Processes or apparatus peculiar to the manufacture or treatment of these devices or parts thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
- H01L27/144—Devices controlled by radiation
- H01L27/146—Imager structures
- H01L27/14683—Processes or apparatus peculiar to the manufacture or treatment of these devices or parts thereof
- H01L27/14689—MOS based technologies
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- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Solid State Image Pick-Up Elements (AREA)
- Element Separation (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
- Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
- Light Receiving Elements (AREA)
Description
11:画素
11A:感光領域
11B:記憶素子領域
11C:回路領域
12:アクセス回路
13:金属間ライン
20:集積回路
21:読み出し回路部品
22:信号処理回路部品
23:出力回路部品
50:キャリア
52:剥離層
100a、100、100A、100B、100C:半導体基板
102a、102b:第1のドープ領域
104a、104b:第2のドープ領域
106:フォトダイオード
110、110A、110B、110C:第2の隔離体
112、112a、114、114a、116、116a:ドープ領域
120:相互接続
122、150、152、154、156、156B、156m、158:誘電層
124:導電ライン
126:ビア/コンタクト
160:導電格子
160m:導電材層
162、168、170、170A、172、172A、174、176、178:導電特徴
166:領域
170a、172a、176a:第1の部分
170b、170b’、172b、172b’、176b:第2の部分
182、184、186:カラーフィルタ
190:マイクロレンズ
1000a、1000b、1000c、1000d、2000a、2000c、2000c、2000d、3000a、3000c、3000c、3000d、4000a、4000c、4000c、4000d、5000a、5000b:イメージセンサ装置
6000、7000、8000:方法
6002、6004、6006、6008、6010、6012、6014、6016、6018、6020、7002、7004、7006、7008、7010、7012、7014、7016、7018、7020、8002、8004、8006、8008、8010、8012、8014:工程
A-A、B-B:線
AR:アクティブ領域
C、D、E、F、G、H、I:ダッシュ線エリア
D1、D2、D3、D4、D5、D6、D7:幅
D10:サイズ
DC:駆動回路
DI1、DI2:誘電構造
FD:浮遊拡散
GS、GS’:隔離構造
HA:正孔
ICS、ICS’、ICS”:初期集積回路構造
L:入射光
Nb:負のバイアス
OP2、OP3、OP4、OP5、OP8、OP10:開口
OP1、OP6、OP9:トレンチ
PD:感光素子
BE1、BE2、PE1、PE2、PE3、PE4、PE5、PE6:パターニングプロセス
Pixоut:画像データ
PR:周辺領域
RS:行選択トランジスタ
RST:リセットトランジスタ
S100t、S110t、S116a、S120t、S122t、S124t、S150、S152、S154、S156、S156B、S160:上面
S100b、S110b:底面
S110、S116、S124:表面
S156i、S156Bi、S170i、S170Ai:内側壁
S170о、S170Aо:外側壁
S172、S172A、S176:側壁
SD:記憶素子
SF:ソースフォロワトランジスタ
SG:記憶ゲート電極
SHG:シャッタゲートトランジスタ
T1、T6、T7:高さ
T100a、T100、T110A、T110B、T110C、T150、T152、T154、T156、T156h、T156v、T158:厚さ
TG1:第1のトランスファゲートトランジスタ
TG2:第2のトランスファゲートトランジスタ
Vaa、Vpix:電圧
X、Y、Z:方向
Claims (9)
- イメージセンサであって、
アクティブ領域と、前記アクティブ領域の隣の周辺領域と、を有し、且つ、第1の側、及び前記第1の側の反対の第2の側を有する、基板と、
前記基板内の前記アクティブ領域内に配置され、感光領域、及び前記感光領域の隣の回路領域を有する画素と、
前記基板内の前記アクティブ領域内に配置され、前記アクティブ領域内において前記基板の前記第2の側から前記基板中のある位置まで延設され、前記感光領域の周辺領域を包囲し、導電格子と、前記導電格子の側壁を被覆する誘電構造と、を有する、隔離構造と、を備え、
前記基板内において前記周辺領域内に配置された導電構造であって、前記導電格子が前記導電構造に電気的に接続された、前記導電構造と、
前記基板内において前記第1の側に配置された、隔離体A又は隔離体Bであって、前記導電構造が、前記隔離体Aを貫通するか、あるいは、前記隔離体Bに接触し、前記隔離体Bは、ドープ領域を有する、隔離体A又は隔離体Bと、
を備えるイメージセンサ。 - 前記隔離構造は、前記回路領域と上面視で重なり、前記隔離構造は、前記画素から電気的に隔離される請求項1に記載のイメージセンサ。
- 前記基板上において、前記周辺領域内に配置される導電パターンであって、前記導電格子が、前記導電パターンを通じて、前記導電構造に電気的に接続される前記導電パターンをさらに備える請求項1又は2に記載のイメージセンサ。
- 前記導電構造の材料と、前記導電パターンの材料とは、同一である請求項3に記載のイメージセンサ。
- 半導体装置であって、
第1の側、及び前記第1の側の反対の第2の側を有する基板と、
前記第1の側に配置された相互接続と、
前記基板において、前記基板のアクティブ領域内部に配置され、前記相互接続と電気的に隔離されたフォトダイオードアレイと、
前記アクティブ領域内において、前記基板の前記第2の側から前記基板中のある位置まで延設された隔離構造であって、前記フォトダイオードアレイが、前記隔離構造に包囲され、且つ前記隔離構造から離間し、前記隔離構造は、導電格子を備える前記隔離構造と、
前記基板内において、前記基板の周辺領域内部に配置され、前記相互接続と電気的に接続される複数の導電構造であって、前記導電格子が、前記導電構造を通じて、前記相互接続に電気的に接続され、前記フォトダイオードアレイから電気的に隔離される前記複数の導電構造と、を備え、
複数の隔離体Aであって、前記基板内において前記第1の側に配置され、前記相互接続から電気的に隔離され、前記導電構造が、前記相互接続に電気的に接続するため、前記隔離体Aを貫通する、前記複数の隔離体A、又は、
複数の隔離体Bであって、前記基板内において前記第1の側に配置され、前記相互接続に電気的に接続され、前記導電構造が、前記相互接続に電気的に接続するため、前記隔離体Bに接触し、ドープ領域を有する、前記複数の隔離体B、をさらに備える半導体装置。 - 複数の導電パターンであって、前記基板上において前記周辺領域内に配置され、前記導電格子が、前記導電パターンを通じて、前記導電構造に電気的に接続される、複数の導電パターンをさらに備える、請求項5に記載の半導体装置。
- 前記導電構造の材料と、前記導電パターンの材料とは同一である、請求項6に記載の半導体装置。
- イメージセンサの製造方法であって、
基板内において、前記基板の第1の側に画素を形成する工程であって、前記画素が、感光領域、及び前記感光領域の隣の回路領域を備える工程と、
前記基板の前記第1の側の反対の第2の側に、前記基板を窪ませて、前記回路領域の上方に、前記感光領域を包囲するように、格子メッシュ空洞を形成する工程と、
前記格子メッシュ空洞において、第1の誘電構造を配置する工程と、
前記第1の誘電構造上において、前記格子メッシュ空洞内に導電格子を形成し、前記第1の誘電構造、及び前記導電格子を備える隔離構造を形成する工程と、
前記基板の前記第2の側に、前記基板を窪ませて、格子メッシュ空洞の側の隣に複数の開口を形成する工程と、
前記開口内に第2の誘電構造を配置する工程と、
前記開口内の前記第2の誘電構造上に、複数の導電構造を形成する工程と、を備え、前記導電構造は、前記隔離構造の前記導電格子に電気的に接続され、前記隔離構造は、前記画素から電気的に隔離され、
前記基板上の、前記第1の側に、相互接続を形成する工程と、
前記基板内において、前記第1の側に、複数の誘電隔離体を形成する工程と、
前記誘電隔離体をパターニングして、前記開口と空間的に連通した複数の貫通孔を形成する工程と、をさらに備え、
前記導電構造は、前記相互接続及び前記導電格子を電気的に接続するために、前記貫通孔内にさらに延設されるように形成される、方法。 - イメージセンサの製造方法であって、
基板内において、前記基板の第1の側に画素を形成する工程であって、前記画素が、感光領域、及び前記感光領域の隣の回路領域を備える工程と、
前記基板の前記第1の側の反対の第2の側に、前記基板を窪ませて、前記回路領域の上方に、前記感光領域を包囲するように、格子メッシュ空洞を形成する工程と、
前記格子メッシュ空洞において、第1の誘電構造を配置する工程と、
前記第1の誘電構造上において、前記格子メッシュ空洞内に導電格子を形成し、前記第1の誘電構造、及び前記導電格子を備える隔離構造を形成する工程と、
前記基板の前記第2の側に、前記基板を窪ませて、格子メッシュ空洞の側の隣に複数の開口を形成する工程と、
前記開口内に第2の誘電構造を配置する工程と、
前記開口内の前記第2の誘電構造上に、複数の導電構造を形成する工程と、を備え、前記導電構造は、前記隔離構造の前記導電格子に電気的に接続され、前記隔離構造は、前記画素から電気的に隔離され、
前記基板上において、前記第1の側に、相互接続を形成する工程と、
前記基板内において、前記第1の側に、複数のドープ隔離体を形成する工程と、をさらに備え、
前記開口は、前記ドープ隔離体の表面を露出するように形成され、前記導電構造は、前記ドープ隔離体を通じて、前記相互接続及び前記導電格子を電気的に接続するため、前記ドープ隔離体と接触するように形成される、方法。
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