TW293160B - - Google Patents
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- TW293160B TW293160B TW084113487A TW84113487A TW293160B TW 293160 B TW293160 B TW 293160B TW 084113487 A TW084113487 A TW 084113487A TW 84113487 A TW84113487 A TW 84113487A TW 293160 B TW293160 B TW 293160B
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- Prior art keywords
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- oxidized
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- 239000000463 material Substances 0.000 claims description 75
- 238000000034 method Methods 0.000 claims description 38
- 150000004767 nitrides Chemical class 0.000 claims description 28
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 28
- 238000000151 deposition Methods 0.000 claims description 27
- 229910052751 metal Inorganic materials 0.000 claims description 23
- 239000002184 metal Substances 0.000 claims description 23
- 238000007254 oxidation reaction Methods 0.000 claims description 20
- 230000003647 oxidation Effects 0.000 claims description 19
- 239000010970 precious metal Substances 0.000 claims description 19
- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(iv) oxide Chemical compound O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 claims description 19
- 150000001875 compounds Chemical class 0.000 claims description 17
- -1 aluminum zirconium titanium Chemical compound 0.000 claims description 15
- 239000003990 capacitor Substances 0.000 claims description 15
- 229910052707 ruthenium Inorganic materials 0.000 claims description 10
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims description 9
- 239000010936 titanium Substances 0.000 claims description 9
- 150000002739 metals Chemical class 0.000 claims description 8
- 229910052719 titanium Inorganic materials 0.000 claims description 8
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 7
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 6
- 229910000510 noble metal Inorganic materials 0.000 claims description 6
- 230000001590 oxidative effect Effects 0.000 claims description 6
- 229910052697 platinum Inorganic materials 0.000 claims description 6
- 229910052788 barium Inorganic materials 0.000 claims description 5
- 238000004377 microelectronic Methods 0.000 claims description 5
- 229910001925 ruthenium oxide Inorganic materials 0.000 claims description 5
- 229910052763 palladium Inorganic materials 0.000 claims description 4
- 229910052703 rhodium Inorganic materials 0.000 claims description 4
- 239000010948 rhodium Substances 0.000 claims description 4
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 229910052741 iridium Inorganic materials 0.000 claims description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 2
- VEUKJXRCHYAIAW-UHFFFAOYSA-N [Nb].[K] Chemical class [Nb].[K] VEUKJXRCHYAIAW-UHFFFAOYSA-N 0.000 claims description 2
- 239000004020 conductor Substances 0.000 claims description 2
- 230000002950 deficient Effects 0.000 claims description 2
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052746 lanthanum Inorganic materials 0.000 claims description 2
- 229910052700 potassium Inorganic materials 0.000 claims description 2
- 239000011591 potassium Substances 0.000 claims description 2
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
- 239000004332 silver Substances 0.000 claims description 2
- PCTMTFRHKVHKIS-BMFZQQSSSA-N (1s,3r,4e,6e,8e,10e,12e,14e,16e,18s,19r,20r,21s,25r,27r,30r,31r,33s,35r,37s,38r)-3-[(2r,3s,4s,5s,6r)-4-amino-3,5-dihydroxy-6-methyloxan-2-yl]oxy-19,25,27,30,31,33,35,37-octahydroxy-18,20,21-trimethyl-23-oxo-22,39-dioxabicyclo[33.3.1]nonatriaconta-4,6,8,10 Chemical compound C1C=C2C[C@@H](OS(O)(=O)=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2.O[C@H]1[C@@H](N)[C@H](O)[C@@H](C)O[C@H]1O[C@H]1/C=C/C=C/C=C/C=C/C=C/C=C/C=C/[C@H](C)[C@@H](O)[C@@H](C)[C@H](C)OC(=O)C[C@H](O)C[C@H](O)CC[C@@H](O)[C@H](O)C[C@H](O)C[C@](O)(C[C@H](O)[C@H]2C(O)=O)O[C@H]2C1 PCTMTFRHKVHKIS-BMFZQQSSSA-N 0.000 claims 2
- 229910044991 metal oxide Inorganic materials 0.000 claims 2
- 150000004706 metal oxides Chemical class 0.000 claims 2
- 150000003609 titanium compounds Chemical class 0.000 claims 2
- FYOZFGWYYZDOQH-UHFFFAOYSA-N [Mg].[Nb] Chemical class [Mg].[Nb] FYOZFGWYYZDOQH-UHFFFAOYSA-N 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 230000000712 assembly Effects 0.000 claims 1
- 239000003999 initiator Substances 0.000 claims 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 claims 1
- VJPLIHZPOJDHLB-UHFFFAOYSA-N lead titanium Chemical compound [Ti].[Pb] VJPLIHZPOJDHLB-UHFFFAOYSA-N 0.000 claims 1
- 239000011777 magnesium Substances 0.000 claims 1
- 150000001247 metal acetylides Chemical class 0.000 claims 1
- 239000010457 zeolite Substances 0.000 claims 1
- 230000008021 deposition Effects 0.000 description 22
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 13
- 229910052718 tin Inorganic materials 0.000 description 13
- 230000004888 barrier function Effects 0.000 description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 8
- 239000000758 substrate Substances 0.000 description 8
- 229910007991 Si-N Inorganic materials 0.000 description 7
- 229910006294 Si—N Inorganic materials 0.000 description 7
- 239000012212 insulator Substances 0.000 description 6
- 239000004065 semiconductor Substances 0.000 description 6
- 239000010409 thin film Substances 0.000 description 6
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 6
- 229910052721 tungsten Inorganic materials 0.000 description 6
- 239000010937 tungsten Substances 0.000 description 6
- 238000005229 chemical vapour deposition Methods 0.000 description 5
- 229910052732 germanium Inorganic materials 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 5
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000003989 dielectric material Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 238000010301 surface-oxidation reaction Methods 0.000 description 4
- 230000008961 swelling Effects 0.000 description 4
- 229910008484 TiSi Inorganic materials 0.000 description 3
- 230000001464 adherent effect Effects 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 239000010941 cobalt Substances 0.000 description 3
- 229910017052 cobalt Inorganic materials 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 150000002736 metal compounds Chemical class 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 239000011733 molybdenum Substances 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 3
- 238000004544 sputter deposition Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 3
- 229910001887 tin oxide Inorganic materials 0.000 description 3
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 3
- 229910052726 zirconium Inorganic materials 0.000 description 3
- 229910018509 Al—N Inorganic materials 0.000 description 2
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 2
- 229910052580 B4C Inorganic materials 0.000 description 2
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- HTXDPTMKBJXEOW-UHFFFAOYSA-N dioxoiridium Chemical compound O=[Ir]=O HTXDPTMKBJXEOW-UHFFFAOYSA-N 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 229910003437 indium oxide Inorganic materials 0.000 description 2
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical class [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 2
- 229910000457 iridium oxide Inorganic materials 0.000 description 2
- 238000002488 metal-organic chemical vapour deposition Methods 0.000 description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- QHGNHLZPVBIIPX-UHFFFAOYSA-N tin(ii) oxide Chemical class [Sn]=O QHGNHLZPVBIIPX-UHFFFAOYSA-N 0.000 description 2
- 241000254032 Acrididae Species 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910018557 Si O Inorganic materials 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910008479 TiSi2 Inorganic materials 0.000 description 1
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- OTCHGXYCWNXDOA-UHFFFAOYSA-N [C].[Zr] Chemical class [C].[Zr] OTCHGXYCWNXDOA-UHFFFAOYSA-N 0.000 description 1
- TTXWERZRUCSUED-UHFFFAOYSA-N [Ru].[Sn] Chemical compound [Ru].[Sn] TTXWERZRUCSUED-UHFFFAOYSA-N 0.000 description 1
- NWRRMAJQFUOLFG-UHFFFAOYSA-N [Zn].[Nb] Chemical compound [Zn].[Nb] NWRRMAJQFUOLFG-UHFFFAOYSA-N 0.000 description 1
- SDXDHLDNCJPIJZ-UHFFFAOYSA-N [Zr].[Zr] Chemical compound [Zr].[Zr] SDXDHLDNCJPIJZ-UHFFFAOYSA-N 0.000 description 1
- UQZIWOQVLUASCR-UHFFFAOYSA-N alumane;titanium Chemical compound [AlH3].[Ti] UQZIWOQVLUASCR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- DFJQEGUNXWZVAH-UHFFFAOYSA-N bis($l^{2}-silanylidene)titanium Chemical compound [Si]=[Ti]=[Si] DFJQEGUNXWZVAH-UHFFFAOYSA-N 0.000 description 1
- QAKMMQFWZJTWCW-UHFFFAOYSA-N bismuth titanium Chemical compound [Ti].[Bi] QAKMMQFWZJTWCW-UHFFFAOYSA-N 0.000 description 1
- 239000005380 borophosphosilicate glass Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- UPHIPHFJVNKLMR-UHFFFAOYSA-N chromium iron Chemical compound [Cr].[Fe] UPHIPHFJVNKLMR-UHFFFAOYSA-N 0.000 description 1
- 229910021419 crystalline silicon Inorganic materials 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000012776 electronic material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052738 indium Inorganic materials 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
- 229910052745 lead Inorganic materials 0.000 description 1
- 235000015250 liver sausages Nutrition 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- DDTIGTPWGISMKL-UHFFFAOYSA-N molybdenum nickel Chemical compound [Ni].[Mo] DDTIGTPWGISMKL-UHFFFAOYSA-N 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910017464 nitrogen compound Inorganic materials 0.000 description 1
- 150000002830 nitrogen compounds Chemical class 0.000 description 1
- 229910052762 osmium Inorganic materials 0.000 description 1
- OTCVAHKKMMUFAY-UHFFFAOYSA-N oxosilver Chemical class [Ag]=O OTCVAHKKMMUFAY-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910052704 radon Inorganic materials 0.000 description 1
- SYUHGPGVQRZVTB-UHFFFAOYSA-N radon atom Chemical compound [Rn] SYUHGPGVQRZVTB-UHFFFAOYSA-N 0.000 description 1
- 150000003258 radon compounds Chemical class 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 229910052702 rhenium Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 229910001923 silver oxide Inorganic materials 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- ZVWKZXLXHLZXLS-UHFFFAOYSA-N zirconium nitride Chemical compound [Zr]#N ZVWKZXLXHLZXLS-UHFFFAOYSA-N 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
-
- 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
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/04—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body
- H01L27/10—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including a plurality of individual components in a repetitive configuration
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L28/00—Passive two-terminal components without a potential-jump or surface barrier for integrated circuits; Details thereof; Multistep manufacturing processes therefor
- H01L28/40—Capacitors
- H01L28/60—Electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L28/00—Passive two-terminal components without a potential-jump or surface barrier for integrated circuits; Details thereof; Multistep manufacturing processes therefor
- H01L28/40—Capacitors
- H01L28/55—Capacitors with a dielectric comprising a perovskite structure material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L28/00—Passive two-terminal components without a potential-jump or surface barrier for integrated circuits; Details thereof; Multistep manufacturing processes therefor
- H01L28/40—Capacitors
- H01L28/60—Electrodes
- H01L28/75—Electrodes comprising two or more layers, e.g. comprising a barrier layer and a metal layer
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S257/00—Active solid-state devices, e.g. transistors, solid-state diodes
- Y10S257/915—Active solid-state devices, e.g. transistors, solid-state diodes with titanium nitride portion or region
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Semiconductor Memories (AREA)
Description
293160
7 B A7 經濟部中央標準局員工消費合作社印製 五、發明説明(1 ) _,i 相關申請案 下列申請案與本發明同時提申 標題 發明人 檔案编號/ 申請案號 Impoved High-Dielectric-Constant Material Electrodes Comprising Thin Platinum Layers Summerfelt, Beratan, Kirlin, Gnade TI-17950 08/283,881 Improved Electrodes Comprising Conductive Perovskite -Seed Layers for Perovskite Dielectrics Summerfelt, Beratan ΤΙ-17952 08/283,468 Improved High-Delectric-Constant Material Electrodes Comprising Thin Ruthenium Dioxide Layers Summerfelt, Beratan, Kirlin, Gnade ΤΙ-19153 08/283,442 High-Dielectric-Constant Material Electrodes Comprising Sidewall Spacers Nishioka, Park, f Bhattacharya, Summerfelt ΤΙ-19272 08/283,871 A Conductive Amorphous-Nitride Barrier Layer for High-Dielectric-Constant Material Electrodes Summerfelt / ΤΙ-19554 08/283,441 A Conductive Exotic-Nitride Barrier Layer for High-Dielectric-Constant Material Electrodes Summerfelt ΤΙ-19555 08/283,873 A Conductive Noble-Metal -Insulator-Alloy Barrier Layer for High-Dielectric-Constant Material Electrodes Summerfelt, Nicolet, Reid, Kolawa ΤΙ-19556 08/283,454 下列已列檔的申請案與本發明有關: 標題 發明人 審查編號 Improved Electrical Connections to Dielectric Materials Gnada, Summerfelt 08/009,521 Improved Electrical Connections to Dielectric Materials Gnade, Summerfelt 08/260,149 _ ^ 一 (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標率(CNS ) Λ4規格(210X 297公釐) 經濟部中央樣準局員工消費合作社印製 293160 A7 B7 五、發明説明(2 )
Lightly Donor Doped Electrodes for High-Dielectric-Constant Materials Summerfelt, Beratan, Gnade 08/040,940 ^^一 Lightly Donor Doped Electrodes for High- Summerfelt, Tl-17660.1 Dielectric-Constant Materials Beratan, Gnade 08/276,191 ______ Improved Electrode Interface for High- Summerfelt, 08/041,025 Dielectric-Constant Materials Beratan _-- 發明背景 下列背景説明並不在於限制本發明,本發明背景之例 子與3對高介電常數材料形成電連接的現行方法有關。 積體電路(即DRAM)密度増加亦增加了用於電子裝置 的高介電常數材料的需要量。一般而言,電容直接與和電 容介質相接觸的電極之表面區域接觸,但是受電極體積的 影響有限。一般用於達成每單位面積較高電/容的現行為法, 係由增加幾何形狀增加每單位面積之表面積,如在渠道或 疊積電容中使用Si〇2或Si〇2/Si3N4作為介電質,但是在如 256Mbit及1Gbit DRAM的製造中此方法變得非常因難。 一種不同的方法是使用高電容率介電材料,許多 peroskite,鐵電或高介電常數(下層縮寫為HDC)材Si02料如 (Ba,Sr)/Ti〇3 (BST)通常其電容密度高於標準Si〇2_si3N4_Sl〇2 電容。不同的金屬及金屬化合物,基本上為貴性金屬,如 Pt,及導電氧化物,如Ru〇2,已用於作為這些HDC材料 的電極。為了能在電子裝置中有效用必需架構可信賴的電 連結’其不會消除這些高介電常數材料的有利性質。 發明概述 一 4 - 本紙張尺度適用中國國家系準(CNS ) A4規格(210X297公楚;)~~' "~ I i I I I I I ϋ ^ I I I I n I ^ c锖先閲讀背面之注意事項并填寫本貰) A7 A7 經濟部中央樣準局員工消費合作社印製 五、發明説明(3 ) 在本文中,、高介電常數〃意謂著在裝置的操作溫度中 介電常數大於約50者。HDC沉積通常在含大氣之氣中於 高溫下(通常大於約500度c)發生。許多電極材料在此環境 下氧化物且成為絕緣或品質變壞。在HDC材料沉積前形成 的原始電極結構在沉積期間或之後必需呈穩定態。在此沉 積後所形成的電極結構在沉積後只需要穩定即可。 如上文中所述。在標準的薄膜(在本文中定義為小於5 微米)(um)應用,已建議Pt作為HDC材料層的電極。但是 雖然Pt對於HDC材料為不反應者,已發現很難只用pt作為 原始電極。Pt—般允許氣氣擴散過其本身,因此基本上允 許鄰近材料氧化物。另外,pt的黏滯性在正常情況下不 會比S i〇2或S i3 N且P t在低溫下可快速形成層。因此已建議 在Pt電極下使用Ta或TiN層作為附著或緩衝層。但是在 BST沉積或韌化期間,氧氣可擴散過pt,且氧化附著層 且使附著層較不導電。因此附著層側的問題可能大於頂部 水平表面,因為Pt-般在頂部較厚,且為—較好擴散障壁。 在標準的薄膜應用中,導電氧化物如Ru〇2已建 為HDC材料層的電極。而且雖然Ru〇2相對於Η%材料為 不反應者,一般本身也有一些困難。例如,使用這種氧化物 形成的結構之電性通常劣於其他如由^形成者。許多 ,應用,除了每單位面積的大電容外尚需要小的漏電流密 種變數感到敏感,如厚度,微結構,電極,電極 /狀及化。物。例如使用Ru02的鉛錯欽化物比使用 ^核的PZ丁的漏電流大了好幾階。特別是,顯然地,漏 5 沐張尺度顧巾國規格(21GX297公釐)
訂 線 ,I— n HI {請先閲讀背面之注意事項再填寫本頁) 裝· 293160 A7 B7 五、發明説明(4 ) · 電流為Schottky障壁所控制,且含Pt電極之較小漏電流顯 然係由於較大的工作函數所致。 、 如本文中所用、不反應〃係用於與HDC材料接觸之材 料,其意謂著在處理期間及之後,對HDC材料提供穩定導 電介面的材料。注意當一導電氧化物如Ru〇2用於不反應 層(或電極的其他部份),該層亦包含未氧化物或部份氧化 物之Ru。例如,在HDC沉積程序期間,由變成部份或完全 氧化物而改變化學性質的Ru之不反應層仍視為不反應者 因為其仍對HDC材料提供穩定之導電介面。 ’ 其他已提出作為標準薄膜結構的其他結構包含作為 電極的Pt,Pd,Rh,且由Re,Os,Rh製成之氧·化物,及在單晶Si 或多晶Si作為黏附層的Ir。這些電極的問題為這些氧化物 在次於Si層下為不穩定者,且這些金屬在/基體溫下(一般 小於約450度c)快速形成層化物。如果可使其他相關問題 避免掉或達到最小,如果在導電氧化物及sj基體間使用一 適當的附著(障壁)層則甚至在HDC材料沉積後,此型式的 電極結構仍可維持其導電率。 因此所提出的多種上電極結構包含下列一般上材料 層.HDC金屬/不反應(氧穩定)層/附著(障壁)層/基體。 在這些結構中,附著層基本上包含一導電材料,該材料在 HDC材料沉積狀態下氧化以提供一導電氧化物。已發現在 HDC材料中的膨脹壓力及裂縫形成的發生原因為:在hdC 材料沉積期間’附著層之氧化的隨後的膨脹所致。 雖然此氧化/膨脹一般發生在附著層的任何表面上,附 一 6 一 不紙狀没適财關家標準(CNS)A·^训㈣7公廣) (請先閲讀背面之注意事項再填寫本頁) U3 -*
經濟部中央樣準局員工消費合作社印製 293160 A7 B7 經濟部中央標準局員工消费合作社印袋 五、發明説明(5 ) 著層之頂部的氧化實質上為上方之未氧化層所阻擋,且附 著層之底部的氧化實質上為其周圍材料(如基體)所阻播。 一般暴路的側壁將使得附著層之表面易於氧化。因為大部 份所提供用於基體層的材料當氧化時歷經體積的變化,附 著層側壁一般使得上方的不反應層膨脹且變形。這些裂縫 可從HDC材料層的上表面沿伸至下電極,因此產生破壞性 的結果。例如,如果一導電層,如一用於電容的上電極, 在HDC層上沉積,則金屬實質上洩漏或在兩電極之間縮 短0 一般,依據本發明,附著層的側壁HDC材料沉積之前 (但在一未反應貴金屬層沉積之後)沉積之後預先氧化。 本發明之一重要觀點為侧壁的預先氧化一般導致實質的 潛在側壁膨脹(及由此產生的貴金屬變形 >〈在HDC材料沉 積之前變形。潛在的側壁膨脹定義為HDC沉積及韌化(含 或不含預先氧化〉中所發生的膨服總量。 依據本發明,在HDC沉積之後實質上對附著層的側壁 氧化。與本發明相比較,在鐵電電容的不同製造階段中的 表面氧化(即形成機微層的氧化物)已在習知技術中加以 説明。參見歐洲專利申請案557 93?由A丨D pate丨等人發 明,Ramt_ lnternationai公司所有,列檔日期丨993年二 月23 g。由D. Pate丨等人所説明之氧化為表面氧化且很明 顯地在結構的不同部份,且用於不同目的,如比預先氧化 更良好的底玻璃層附著及頂部鐵電材料。本發明的附著層 側壁必須不只進行表面氧化,因為表面氧化附著層一 ---------^------’玎------0 (請先聞讀背面之注^項寫本頁) 7 - 經濟部中央標準局員工消費合作社印製 五、發明説明(6 承受HDC沉積期間實質上的氧化及膨脹,以致破壞結構。 本發明之一實施例為一微電予結構,包含一含主表面 的支撐層,及一附著層位在該支撐層主表面上,其中該附 著層包含一頂表面及一膨脹,氧化側壁。該結構更含一在 該附著層之頂表面上方的貴金屬層,其中該貴金屬;包含 —位在該氧化側壁上方的變形區域,及—在該貴金屬層上 方的高介電常數材料層。實質上高介電常數材料層在貴金 屬層的變形區域不會產生膨脹壓力裂縫。 、 形成本發明之一實施例的方法包含形成含主表面的 支撐層;在該支撐層的主表面上,形成一附著屬,該附著 屬包含一實質未氧化側壁;在該附著層的頂表面上形成貴 金屬層;其中更包含氧化該附著層之未氧化側壁以形成預 先氧化側壁;及在該貴金屬層上沉積一筹介電常數材料 層,其中該預先氧化側壁使該預先氧化側壁相鄰的該附著 層更進一步氧化及膨脹的可能性達到最小,高介電常數材 料層於高介電常數材料層沉積步驟期間,減低其膨脹壓力 及裂縫。 很明顯的1褒微電子結構中,其中一主HDC材料的電極 包含有預先氧化側壁的附著層,該側壁阻擋預先化 默材料沉積期間承受實質的氧化及膨脹。這些結構亦可 用於多層t容及其他薄膜裝置,如熱電裝置(如(未冷卻) 紅外線偵測器),不可抹除鐵電Ram (使用永久極化性 質)’薄膜壓電及薄膜電光裝置。 ---I-------裝------訂------線 (請先閲讀背面之注意事項再填寫本頁) 8 -
2^3l6〇 五、發明説明( ΆΜΛΜ_ΐ_ 本發明之顯著特性將於下列中請專利範射説明。^ =發=特徵及優點可由下列“説明中得到詳盡的瞭 解’閲璜説明時並請參考附圖,其中: ’、 圖1-4之截面圖,顯示高介電常數材料電容製造 步驟,該電容含一電極包含非導電性,預先氧化側壁;及 圖5-8之截面圖,顯示高介電常數材料電容製造中的 步驟,該電容含一電極包含導電性,預先氧化側壁。 H隹實施例之詳細説明: 請參考圖1-4,圖中示形成本發明之實施例的方法, 其中一下部電極結構,包含一預先氧化s。圖】示一 si〇2 層32 ’覆蓋在半導體基體30之上。金屬2*可覆蓋亦可不 覆蓋一擴散障壁’如Ti〇2或SisRiShN4。TiSiW多晶Si插塞 34提供經SiO^ 32的電連接。一厚i〇〇nm的TiN36已反 應性地賤射沉積及打樣蚀刻在該結構上。 多種其他的標準程序已用於形成此部份之結構,如在 多晶層上濺射沉積Ti,隨後再執行Μ,之快速熱韌化(7〇〇 。(:下經30秒)或NH 3的爐韌化(57VCt 1〇分鐘)。然 後選擇性地應用預先氧化經化學移除而形成如圖所示的 打樣之TiN層36。在另一分法中,於TiN層36沉積之前 一瞬間執行下層多晶層之蒸汽HF清潔,而不需使TiSi2。 最好該結構在HF清潔及附著層沉積處理之間沒有暴露在 受污染的環境之下,如大氣,以保證在預先氧化及TiN層 9 關家標準(CNS )八视格(2丨0X297公釐) ( ( ^------1T------0 (請先閱讀背面之注意事項再填寫本頁) 經濟部中央樣準局貝工消費合作社印褽 經濟部中夬漂隼苟員工消費合作社印裝 A7 B7 五、發明説明(8) 之間能有良好的附著性質。 然後,對lOOnm厚的Pt層38濺射沉積,其狀態為 5mTorr下的Ar氣體中使用Pt為靶體,基體溫度為325 °C。 Pt層38亦使用e束蒸發法,化學蒸汽沉積(CVD ),或 金屬有機CVD ( MOCVD )。Pt層38的高度之改變係依 據所需HDC材料之電容密度,總所需電容,及裝置的產生 而定。例如,未來的裝置的1 G DRAM —般需要較高的電 容,使得與256M DRAM裝置相比較之下每單位面積可提 供較多的電極表面,此係因1G DRAM —般每單位區域中 需要提供較多的電容(此係由於如新增的功能及收縮的裝 置特性)。在Pt層3 8沉積之後,進行光阻沉積及打樣。然 後在低壓下對鉑屬卩8進行乾蝕刻,此係在高密度電漿反應 離予蝕刻(P1E)反應器中進行,以形成圖之所示之結構。 然後,如圖2所示,該結構在稀釋的的氣氛(5%〇2側 壁。在HDC沉積之前,含Pt層38之此一結構的實質變形 在此點發生。另外在韌化時可使用臭氣。另外,該結構可 在低溫下(如600 °C )韌化,允許Pt層38此當氧化在完全的 BST沉積溫度下進行時更具鬆弛性。此氧化韌化程序的另 一優點為Pt層38可重新配置以在蚀刻之後,使得任何尖 銳角落變圓,因為尖銳角落可產生多餘的洩露電流或裂。 然後在電極結構上使用金屬在機化學蒸汽沉積(MOC VD),在 650 °C,〇2/Ar(l/9)的混合氣體,僅 lOmTorr 的 壓力下,形成BS丁層42。在BST沉積期間,不會發生Τι〇2 側壁之實質氧化或膨脹,因此縮小BST層42中的膨脹壓 -1 〇 - 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) I I n 私衣 ^—訂 务 (請先閱讀背面之注意事項再填寫本頁) A7 B7 五、發明説明(9 ) 力及裂縫。可使用離子,光子,電子及電裝增強沉積。奶丁 層42亦可使用CVD ,錢射或旋轉覆屬法(spm e〇ating method)沉積。 然後對上Pt結構44進行濺射沉積及乾蝕刻,以形成 @ 4所示的電容結構。以含下及上電極的結構可再予勃化 以改進電容性質。 請參考圖5_8,其中示形成本發明另—實施例的分 法,其中有一含下電極的電容,該下電極包含導電預先氧 化側壁。圖5所示的結構與圖丨中的結構相似,唯其中使 用了沉積而非TiN。因為Pu為導電沉積之前,形成Ru〇2 層48。在此實施例中,電流可在基體3〇及以層38之間流 動’甚至當附著層的頂表面已氧化時仍然一樣。 然後,该結構在含大氣的氧氣中韌化,/須如圖6所示 形成Ru〇2側壁。如前一實施例所示,該含pt層38之結構 上的實質的變形,於HDC材料沉積之前,在此點發生。 如上文所述,然後使用MOCVD在電極結構上形成 BST層42 ’導致圖7中所示的結構。然後,Ru〇2側壁上 實質的氧化或膨脹在BST沉積期間並不會發生,因此使 BST層42中的膨脹壓力及裂縫達到最小。然後濺射沉積及 乾蝕刻上濺射44以形成圖8中所示的電容結構c 本實施例之一潛在優點為一般圖8導電側壁允許在與 圖4的非導電側壁結構比較之下,可有更多的電極表面區 域與HDC材料接觸。 實施例的另一潛在優點為在pt層38沉積之前,氧化 尽紙張尺度通用宁國國豕標準(CNS ) A4規格(210X297公釐) (請先閱讀背面之注意事項再填寫本頁) 、-β 丁 經濟部中央標準局員工消費合作社印製 293160 A7 B7 ----- 五、發明説明(1 0 ) Ru層46之頂表面,因此使得Ru層46/Ru〇2層48的頂表 面更進一步氧化。由於氧氣擴散過pt層38(即沿粒子邊 界)’因此此現存的氡化物限制附著屬頂表面上不規則氧化 區域之形成,因為該擴散可導致pt層38的小突出。 由下表可略瞭解本發明上一些實施例及圖形。表一 圖 號 中邊 較佳或特定 實施例 項目 其它不同例子 30 層 基體 第一層絕源體 經濟部中央揉準局員工消費合作社印製 其他單組成半導體(如錯, 鑽石) ’ 化合物+半導體(如 GaAsJnp,Si/Ge,SiC) 陶瓷積體 其他絕緣體(如層氮化物) 摻雜絕緣體(如BSG PSG, BPSG) 5 可多於一層(如在Si〇2上 的 Si3N4) 可使或不使用(如第一位 階絕緣體,積體,另一絕緣 層或其組合可為下電極 之支撐層) 上述材料之結合 I I |裳| I I I 訂 C請先閱讀背面之注意事項再填寫本頁} 線
五、發明説明(1 1 ) A7 B7
導電塞子 上 其它金屬化合物(如氮化 物,锆氮化物;層化物,鎢 層化物,鉬層化物,鎳層’化 物;碳化物:硼碳化物鈦 碳化物,硼化物:欽硼化 物) 導電金屬(如,鶴,鈥,鎳 鉬) 單組件半導體(如單或聚 晶層鍺) 其它可用於组合結構的 層化物(如Ni層化物,Co 層化物,屋鎢層化物) 了為多層(如(TiN/ TiSi /多丨\謝) 述材料的组合 r ( ----------^------、玎------^ (請先閲讀背面之注意事項再填寫本頁) 經濟部中央樣準局員工消費合作社印製 ~ 1 3 ~ 本紙張尺度賴 t® HriiTcNS)A4^(21〇X29-^F) 五、發明説明(1 2.) 36 46
TiN 釕 A7 B7 附著層 經濟部中央標準局員工消費合作社印製 本紙張尺度適用中國國家橾準(CNS ) A4規格(2ΙΟ'〆 297公釐) 其他導電金屬化合物(如 氧化物:釕氧化物,餓氧化 物,緒氧化物,银氧化物, 銦氧化物,錫氧化物) 導電金屬(不同於巳下面 42中的經選擇之特定金 屬如僞,麵,鈥,錫,釕,銦, 餓,錄,炫) 三重(或更多重)非晶氮化 物(如 Ta-Si-N,Ti-Si- N, Ta-B-N,Ti-B-N) 外來導電氮化物(如鈦鋁 氮化物,Zr氮化物,HF氮 化物,Υ氮化物,Sc氮化 物,La氮化物,及其他稀土 氮化物,缺ALN氮化物,推 雜A1氮化物,Mg氮化 物,Ca %化物,Sr氮化 物,B a氮彳/匕物) 上述外來導電氮化物及 共同 Si處理材料如 TiN,GaN,Ni 氮化物,C0 氮 化物,Ta氮化物,W氮化物 (如Ta-Al-N)的合金 貴金屬絕緣體合金(如 Pd-Si-N,Pt-Si-N,Pd-Si- O, Pd-Si-0,Pd-B-(O,N),Pd-Al-N,Ru-Si-(0, N),Ir-Si-0,Re-Si-N,Rh-Al-0,Au-Si-N,Ag-Si-N) 可為多重( TiSi, ,TiN/TiSi 如 TiN-/多晶Si) (請先閱讀背面之注意事項再填寫本頁) •裝. 訂 -14 經濟部中央標準局員工消費合作社印— A7 B7 五、發明説明(1 3) 可為在含相當優良附著 性質之層上含相當優良 障壁性質的層(Ru/TiN) 上述材料之結合 38 鉑 貴金屬層 其它氧化電組貴或鉑群 金屬(如免,錄,姥) 上述材料的組合 上述材料層 40 Ti02 預先氧化側壁 上述元件36及46所用金 屬所形成的化合物(如钽 50 Ru〇2 氧化物,鈦氧化物,錫氧穫 物,銦氧化物,銥氧化物, 釕氧化物) 上述材料的組合 42 鋇想鈥 高介電常 其他perovskite,熱電,鐵 化物 數材料層 電,或高介電常數氧化物 (如(Ba,Sr,CaP,Pb) (Ti,Zr) 〇3 ,(Pb,La)(Zr,Ti)C^,鉍 鈦化物,鉀鈕化物,鉛錫鈦 化物,鉀鈮物物,釦鋅鈮化 物,鉛鎂鈮化物,組五氧化 物,器氧化物) 授予劑(donor),接受劑 (accePtor),或授予劑與接 受劑之上表的摻雜氧化 物 上述材料之組合 上述材料層 I訂 1 I 線 (請先閱讀背面之注意事項再填寫本頁) 一 1 5 -
本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐"T 2〇3l6q 五、4 务明説明 ~Ta1 0 4) D/ 4 上部電極 導電金4化合物(如氮化 物:鈦氮化物,釕氮化物, 錫氮化物,鈷氮化物,氧化 物:釕氧化物,錫氧化物, 鋅氧化物,摻雜鋅氧化物 銥氧化物;層化物:鈦層化’ 物,钽層化物,鎢層化物, 鉬層化物,鎳層化物:碳化’ 物:鈦碳化物;硼化物:鈦 蝴化物) 其他惰性或銷群金屬(如 鈀,釕,铑,金,銥,銀) 反應性金屬(如:鎢,鈕,, 鈦,鈿) ’ ’’ 其他蚱同導電電極(如鋁 摻雜Si或Ge) ’ 上述材料/的結合 可含多於一層 48 Ru02 導電氧化物層 其它導電氧化物(如釕氧 化物,餓氧化物,銥氧化 物,錫氡穫物,鋼氧化物) 上述材料的結合 ----------^------1T------ (請先閲讀背面之注意事項再填寫本頁) 經濟部中央樣準局員工消費合作社印裝 在上文中已詳細説明較佳之實施例,須知本發明的觀 點5F含文中未説明之實施例而在申請專利範圍内者。參考 上述結構,至此結構的電逹接可為歐姆性,整流性,電容性 直接或間接者,其間經介間電路等。該等裝置可使用分佈組 件或完合的積體電路包含層,鍺砷化鎵或其他電子材料’'。 -般較佳或特定的例子優於其他不㈣子。圖中所顯示 A7 B7 五、發明説明(15) 尺寸既非絕對也非相對尺寸,為了説明起見某些厚度已加 以誇大。下電極的某些組件有時可為電極的一部份或有時 可在電極的内,外,上,下或處;在任一例中本發明的結構及 方法實質上相同。 附著層可包含表刿中的其他材料,但以表列中的材料 為佳。例如,附著層可包含其化金屬化合物,如錁金屬,钽 金屬,鎢金屬,鉬金屬,鎳金屬,鈷金屬,鐵金屬,鉻金 屬,硼碳化物,鈕碳化物,鈦碳化物,锆碳化物,鈦硼化 物或鍺硼化物。另外,附著層可包含其他導電金屬(不同於 從元件38所選擇的特定金屬)如鈷,鐵鉻,鈀,錁锆,給或 鉬。另外附著層可包含單組件半導體如單或聚層或鍺|或 化合物半導體,如GaAs,InP,Si/Ge或SiC。 已應用較佳實施例説明本發明,上列說明並非用於限 制本發明,説明實施例之不同修飾及組合和本發明的其他 實施例,對於熟習於此一技術者可經由參考説明而明瞭。因 列下列申請專利範圍用於包含本發明的修飾例及實施 例。 ^^^1 n^— Hal · ^-- (請先閱讀背面之注意事項再填寫本頁) -§ 線 經濟郎中央標隼局員工消費合作社印製 it I度 尺 張 紙 I本 隼 標 家 國 國 |釐 9 2
Claims (1)
- 88 88 ABCD 圍範利 專請 中 六 經濟部中央梯準局負工消費合作社印装 1一種形成微電子結構的方法,該方法含下列步驟: (a)形成含主表面的支撐層; ⑻在該支撐層的主表面上,形成_附著屬,該附 包含一實質未氧化側壁; @ (c)在該附著層的頂表面上形成貴金屬層; ⑷氧化該附著層之未氧化侧壁以形成預先氧化倒 壁;及 (e)氧化該側壁之後在該貴金屬層上沉積一高介電常 數材料層,其中該預先氧化側壁禁止與該預先氧化側壁相 鄰的該附著層更進一步氧化及膨脹,高介電常數材料層在 此處減低其膨脹壓力及裂縫。 2. 如申請專利範圍第】項之方法,其中形成該預先氧 化側壁的該步驟(d)使在該預先氧化側壁上^方的該貴金屬 層的一部份變形。 3. 如申請專利範圍第】項之方法,其中步驟(d)更包含 在該附著層上的預先氧化側壁上更進一步沉積高介電常 數材料層的步驟。 4. 如申請專利範圍第1項之方法,其中該預先氧化側 壁包含一導電氧化物。 5. 如申請專利範圍第4項之方法,其中該附著層包含 釕,且該預先氧化側壁包含釕氧化物。 6 _如申請專利範圍第4項之方法’該方法更包含在該 頂表面上形成該貴金屬層的步驟今前氧化該附著層之丁貝 表面。 -18 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) f f ---------裝------ir------il {請先閲讀背面之注意事項再填寫本頁) 293160 申請專利範圍經濟部中央橾準局貝工消费合作社印製 7·如申請專利範圍第6項之分法,其中該附著層包含 釘,且孩預先氧化側壁包含対之雙氧化物。 口 數材::申請專利範圍第4項之方法’在沉積該高介電常 ^材枓層<步驟中,該方法更包含氧化該附著層的頂表 古八請專利範圍$ 1項之方法,該方法更包含在該 问7丨私吊數材料層上形成一上電極。 1 〇·如申請專利範圍第9項之分法,其中該上電極從下 列群中選擇:免,釕,铑,金,録,銀及其組合物。 辟勺中請專利範㈣1項之方法,其中該預先氧化側 壁包含絕緣氧化物。 本敍:如申請專利範圍第11項之方法,其中該附著層包 σ ·:化物,且該絕緣氧化物包含該鈦雙氧化物。 如申π專利範圍第1項之方法,其中該附著層從下 2體材料群㈣擇:金屬,金屬氮化物,金屬氧化物, :石夕化物,金屬碳化物,金屬硼化物,三重非晶氮化物, 及其組合。 4’如申凊專利範圍第1項之方法,其中該附著層從 下列導體材料群帽擇:鈇銘氮化物,ζ 化物,γ氣仆札。起 乱 物,S c氮化物,L a氮化物,缺A1之Ν氮化 勿,換雜A1氮化物,Mg氮化物,Ca氮化物,心氮化物 ,Ba氤化物,及其组合。 1 5·如申請專利範圍第1項之方法,其中該高介電常數 曰從下列群中選擇:鋇鳃鈦化物,鋁锆鈦化物,鉛鑭 ---------^------、玎------線 (請先閲讀背面之注意事項再填寫本頁)ABCD 經齊部t矢嘌隼苟員二肖费>^.!±,;pu •申請專利範園 鈥化物’錯綱錯鈦化物,叙鈥化物,鉀起化物,鉛鈦輕化 物’鉛组化物,鉛鋅鈮化物,鉀鈮化物,鉛鎂鈮化物,及 其組合。 16.如申請專利範圍第】項之方法,其中該貴金屬層從 下列群中選擇:鉑,鈀,銥,釕及其組合。 17_ —種形成微電子結構的方法,該方法係含下列步 驟: (a) 形成含主表面的支撐廣; (b) 在該支撐層的主表面上,形成一導電附著屬,該附 著屬包含一實質未氧化側壁; (c) 在該附著層的頂表面上形成貴金屬層; (d) 氧化該附著層之未氧化側壁以形成預先氧化側 壁;及 / (e) 在氧化該側壁之後在該貴金屬層上沉 常數材料層’其中該預先氧化側壁禁止與該預先氧化側壁 相鄰的該附著層更進一步氧化及膨脹,高介電常數材料層 在此處減低其膨脹壓力及裂縫。 18.如申請專利範圍第17項之分法,該方法包含:在 該頂表面上形成該貴金屬層的步驟之前氧化該附著層之 頂表面。 〃 19.如申請專利範圍第17項之分法,其中形成該預先 軋化側壁的琢步驟(d)使在該預先氡化側壁上方的該貴金 屬層的一部份變形。 、 20.如申請專利範圍第I?項之分 月&刀决,其中步驟(d)更包 裝— 訂 線 (請先閲讀背面之注意事項再填寫本頁) A8 B8 C8 D8 六、申請專利範圍 含在該附著層上的預先氧化側壁上更進一步沉積高介電 常數材料層的步驟。 21. —種形成微電子電容的方法,該方法包含步驟如 下: (a) 形成一含主表面的支撐層; (b) 在該支撐層的主表面上形成一釕層: (c) 在該釕層的頂表面形成一鉑層,該釕層包含一實質 未氧化之側壁; (d) 氧化該釕層之未氧化側壁以形成釕二氧化物側 壁; (e) 在氧化該側壁之後,在該鉑層上形成一鋇鳃鈦化 物層; (f) 在該鋇總鈇化物層上形成一上電極 22.—種微電子結構包含: (a) —含主表面的支層; (b) —在該支撐層之主表面上的附著層,該附著層包 含一頂表面及一膨脹,氧化之側壁;及 (c) 一在該附著層之頂表面上的貴金屬層;及 經濟部中央標準局員工消費合作社印裝 (請先閲讀背面之注意事項再填寫本頁) (d) 在該貴金屬·層上的高介電常數材料層,其中該高 介電常數材料層在該貴金屬層之該變形區實質上沒有膨 脹壓力裂缝。 —21 ~ 本紙張尺度適用中國國家標率(CNS ) A4規格(210X297公釐)
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- 1995-07-25 EP EP95111690A patent/EP0697718B1/en not_active Expired - Lifetime
- 1995-07-25 DE DE69528559T patent/DE69528559T2/de not_active Expired - Lifetime
- 1995-08-01 KR KR1019950023645A patent/KR100356348B1/ko not_active IP Right Cessation
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US5554564A (en) | 1996-09-10 |
KR960009181A (ko) | 1996-03-22 |
DE69528559D1 (de) | 2002-11-21 |
DE69528559T2 (de) | 2003-06-26 |
US5554866A (en) | 1996-09-10 |
EP0697718A1 (en) | 1996-02-21 |
EP0697718B1 (en) | 2002-10-16 |
US5811851A (en) | 1998-09-22 |
KR100356348B1 (ko) | 2002-12-16 |
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