JP4931173B2 - タンタル窒化物膜の形成方法 - Google Patents
タンタル窒化物膜の形成方法 Download PDFInfo
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- JP4931173B2 JP4931173B2 JP2005059085A JP2005059085A JP4931173B2 JP 4931173 B2 JP4931173 B2 JP 4931173B2 JP 2005059085 A JP2005059085 A JP 2005059085A JP 2005059085 A JP2005059085 A JP 2005059085A JP 4931173 B2 JP4931173 B2 JP 4931173B2
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- tantalum
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- tantalum nitride
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- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 title claims description 51
- 238000000034 method Methods 0.000 title claims description 49
- 239000007789 gas Substances 0.000 claims description 128
- 229910052715 tantalum Inorganic materials 0.000 claims description 56
- 239000000758 substrate Substances 0.000 claims description 55
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 53
- 238000004544 sputter deposition Methods 0.000 claims description 35
- 150000001875 compounds Chemical class 0.000 claims description 29
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 18
- 229910052757 nitrogen Inorganic materials 0.000 claims description 17
- 239000002245 particle Substances 0.000 claims description 13
- 238000005229 chemical vapour deposition Methods 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 125000000217 alkyl group Chemical group 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 7
- 239000000470 constituent Substances 0.000 claims description 5
- 125000004432 carbon atom Chemical group C* 0.000 claims description 4
- 239000010408 film Substances 0.000 description 183
- 230000004888 barrier function Effects 0.000 description 30
- 239000010409 thin film Substances 0.000 description 21
- 239000010949 copper Substances 0.000 description 14
- 238000005755 formation reaction Methods 0.000 description 13
- 230000008569 process Effects 0.000 description 13
- 230000015572 biosynthetic process Effects 0.000 description 12
- 238000006722 reduction reaction Methods 0.000 description 12
- 229910052799 carbon Inorganic materials 0.000 description 11
- 238000007872 degassing Methods 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 7
- 239000002131 composite material Substances 0.000 description 7
- 230000009467 reduction Effects 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 5
- 239000012535 impurity Substances 0.000 description 4
- 239000011261 inert gas Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 230000005587 bubbling Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005240 physical vapour deposition Methods 0.000 description 2
- 239000012495 reaction gas Substances 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 238000002230 thermal chemical vapour deposition Methods 0.000 description 2
- KVKAPJGOOSOFDJ-UHFFFAOYSA-N CN(C)[Ta] Chemical compound CN(C)[Ta] KVKAPJGOOSOFDJ-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000007983 Tris buffer Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 125000000962 organic group Chemical group 0.000 description 1
- 150000002902 organometallic compounds Chemical class 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 150000003482 tantalum compounds Chemical class 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
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- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
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- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
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- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
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- C23C16/505—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating using electric discharges using radio frequency discharges
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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
- H01L21/28—Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
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- H01L21/28512—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic Table
- H01L21/28556—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic Table by chemical means, e.g. CVD, LPCVD, PECVD, laser CVD
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Description
3 電極 4 高周波電源
5 加熱手段 6 基板載置用ステージ
7 ガス室 8 孔
9 ガス導入系 S 基板
Claims (7)
- CVD法に従って、成膜室に、タンタル元素(Ta)の周りにN=(R,R')(R及びR'は、炭素原子数1〜6個のアルキル基を示し、それぞれが同じ基であっても異なった基であってもよい)が配位した配位化合物からなる原料ガス及びNH3ガスを同時に導入し、基板上で原料化合物を還元せしめ、還元化合物膜を形成してNに結合しているR(R')基を一部切断除去し、次いでH原子含有ガスを導入して前記還元化合物膜と反応させて、還元化合物中のTa−N結合を切断し、かつ、残っているNに結合しているR(R')基を切断除去し、タンタルリッチのタンタル窒化物膜を形成することを特徴とするタンタル窒化物膜の形成方法。
- 前記原料ガスが、ペンタジメチルアミノタンタル、tert-アミルイミドトリス(ジメチルアミド)タンタル、ペンタジエチルアミノタンタル、tert-ブチルイミドトリス(ジメチルアミド)タンタル、tert-ブチルイミドトリス(エチルメチルアミド)タンタル、Ta(N(CH3)2)3(NCH3CH2) 2 から選ばれた少なくとも一種の配位化合物のガスであることを特徴とする請求項1記載のタンタル窒化物膜の形成方法。
- 前記H原子含有ガスが、H2、NH3、SiH4から選ばれた少なくとも一種のガスであることを特徴とする請求項1又は2に記載のタンタル窒化物膜の形成方法。
- 前記タンタル窒化物膜において、タンタルと窒素との組成比が、Ta/N≧2.0を満足する膜であることを特徴とする請求項1〜3のいずれかに記載のタンタル窒化物膜の形成方法。
- 請求項1〜4のいずれかに記載の形成方法により得られたタンタル窒化物膜に対して、タンタルを主構成成分とするターゲットを用いるスパッタリングにより、タンタル粒子を入射させることを特徴とするタンタル窒化物膜の形成方法。
- 前記スパッタリングが、前記ターゲットに印加するDCパワーとRFパワーとを調整して、DCパワーが低く、かつ、RFパワーが高くなるようにして行われることを特徴とする請求項5記載のタンタル窒化物膜の形成方法。
- 前記タンタル粒子を入射させたタンタル窒化物膜において、タンタルと窒素との組成比が、Ta/N≧2.0を満足する膜であることを特徴とする請求項5又は6に記載のタンタル窒化物膜の形成方法。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005059085A JP4931173B2 (ja) | 2005-03-03 | 2005-03-03 | タンタル窒化物膜の形成方法 |
TW095106826A TWI397952B (zh) | 2005-03-03 | 2006-03-01 | Method for forming tantalum nitride film |
PCT/JP2006/304072 WO2006093262A1 (ja) | 2005-03-03 | 2006-03-03 | タンタル窒化物膜の形成方法 |
KR1020097004614A KR100954714B1 (ko) | 2005-03-03 | 2006-03-03 | 탄탈 질화물막의 형성 방법 |
KR1020077012311A KR100942685B1 (ko) | 2005-03-03 | 2006-03-03 | 탄탈 질화물막의 형성 방법 |
CN2006800014741A CN101091004B (zh) | 2005-03-03 | 2006-03-03 | 钽氮化物膜的形成方法 |
US11/885,345 US8796142B2 (en) | 2005-03-03 | 2006-03-03 | Method for forming tantalum nitride film |
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Application Number | Priority Date | Filing Date | Title |
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JP2005059085A JP4931173B2 (ja) | 2005-03-03 | 2005-03-03 | タンタル窒化物膜の形成方法 |
Publications (3)
Publication Number | Publication Date |
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JP2006241524A JP2006241524A (ja) | 2006-09-14 |
JP2006241524A5 JP2006241524A5 (ja) | 2008-04-24 |
JP4931173B2 true JP4931173B2 (ja) | 2012-05-16 |
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JP2005059085A Active JP4931173B2 (ja) | 2005-03-03 | 2005-03-03 | タンタル窒化物膜の形成方法 |
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Country | Link |
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US (1) | US8796142B2 (ja) |
JP (1) | JP4931173B2 (ja) |
KR (2) | KR100954714B1 (ja) |
CN (1) | CN101091004B (ja) |
TW (1) | TWI397952B (ja) |
WO (1) | WO2006093262A1 (ja) |
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US8048717B2 (en) * | 2007-04-25 | 2011-11-01 | Taiwan Semiconductor Manufacturing Company, Ltd. | Method and system for bonding 3D semiconductor devices |
CN103839604A (zh) * | 2014-02-26 | 2014-06-04 | 京东方科技集团股份有限公司 | 导电膜及其制备方法、阵列基板 |
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KR100200739B1 (ko) * | 1996-10-16 | 1999-06-15 | 윤종용 | 장벽금속막 형성방법 |
US6153519A (en) * | 1997-03-31 | 2000-11-28 | Motorola, Inc. | Method of forming a barrier layer |
US5893752A (en) * | 1997-12-22 | 1999-04-13 | Motorola, Inc. | Process for forming a semiconductor device |
US6410432B1 (en) * | 1999-04-27 | 2002-06-25 | Tokyo Electron Limited | CVD of integrated Ta and TaNx films from tantalum halide precursors |
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US20090104775A1 (en) | 2009-04-23 |
CN101091004A (zh) | 2007-12-19 |
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TWI397952B (zh) | 2013-06-01 |
JP2006241524A (ja) | 2006-09-14 |
KR100954714B1 (ko) | 2010-04-23 |
KR20070085592A (ko) | 2007-08-27 |
WO2006093262A1 (ja) | 2006-09-08 |
TW200636832A (en) | 2006-10-16 |
US8796142B2 (en) | 2014-08-05 |
KR100942685B1 (ko) | 2010-02-16 |
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