JP6397307B2 - 凹部を充填する方法 - Google Patents
凹部を充填する方法 Download PDFInfo
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- JP6397307B2 JP6397307B2 JP2014220542A JP2014220542A JP6397307B2 JP 6397307 B2 JP6397307 B2 JP 6397307B2 JP 2014220542 A JP2014220542 A JP 2014220542A JP 2014220542 A JP2014220542 A JP 2014220542A JP 6397307 B2 JP6397307 B2 JP 6397307B2
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- 238000000034 method Methods 0.000 claims description 106
- 239000010409 thin film Substances 0.000 claims description 83
- 239000004065 semiconductor Substances 0.000 claims description 75
- 239000000758 substrate Substances 0.000 claims description 41
- 239000010408 film Substances 0.000 claims description 35
- 239000000463 material Substances 0.000 claims description 29
- 238000005530 etching Methods 0.000 claims description 19
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical compound [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 claims description 12
- 239000013078 crystal Substances 0.000 claims description 11
- 238000000137 annealing Methods 0.000 claims description 10
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 9
- 229910000077 silane Inorganic materials 0.000 claims description 8
- 239000007789 gas Substances 0.000 description 233
- 239000010410 layer Substances 0.000 description 87
- 230000008569 process Effects 0.000 description 62
- 238000012545 processing Methods 0.000 description 26
- 239000012535 impurity Substances 0.000 description 23
- 235000012431 wafers Nutrition 0.000 description 21
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 16
- 229910052710 silicon Inorganic materials 0.000 description 16
- 239000010703 silicon Substances 0.000 description 16
- 239000000654 additive Substances 0.000 description 13
- 230000000996 additive effect Effects 0.000 description 13
- 229910000078 germane Inorganic materials 0.000 description 9
- 239000011261 inert gas Substances 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 7
- 238000010926 purge Methods 0.000 description 7
- 229910000577 Silicon-germanium Inorganic materials 0.000 description 5
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 description 5
- 229910021417 amorphous silicon Inorganic materials 0.000 description 5
- 229910052732 germanium Inorganic materials 0.000 description 5
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 5
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 229910001873 dinitrogen Inorganic materials 0.000 description 4
- 229910052736 halogen Inorganic materials 0.000 description 4
- 150000002367 halogens Chemical class 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000002019 doping agent Substances 0.000 description 3
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- CGRVKSPUKAFTBN-UHFFFAOYSA-N N-silylbutan-1-amine Chemical compound CCCCN[SiH3] CGRVKSPUKAFTBN-UHFFFAOYSA-N 0.000 description 2
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 description 2
- 239000008186 active pharmaceutical agent Substances 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- RBFQJDQYXXHULB-UHFFFAOYSA-N arsane Chemical compound [AsH3] RBFQJDQYXXHULB-UHFFFAOYSA-N 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- ZOCHARZZJNPSEU-UHFFFAOYSA-N diboron Chemical compound B#B ZOCHARZZJNPSEU-UHFFFAOYSA-N 0.000 description 2
- WZUCGJVWOLJJAN-UHFFFAOYSA-N diethylaminosilicon Chemical compound CCN([Si])CC WZUCGJVWOLJJAN-UHFFFAOYSA-N 0.000 description 2
- AWFPGKLDLMAPMK-UHFFFAOYSA-N dimethylaminosilicon Chemical compound CN(C)[Si] AWFPGKLDLMAPMK-UHFFFAOYSA-N 0.000 description 2
- PZPGRFITIJYNEJ-UHFFFAOYSA-N disilane Chemical compound [SiH3][SiH3] PZPGRFITIJYNEJ-UHFFFAOYSA-N 0.000 description 2
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- 230000005012 migration Effects 0.000 description 2
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- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- FAQYAMRNWDIXMY-UHFFFAOYSA-N trichloroborane Chemical compound ClB(Cl)Cl FAQYAMRNWDIXMY-UHFFFAOYSA-N 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- GNZBDLMUHMACNZ-UHFFFAOYSA-N N-(disilanyl)-N-propan-2-ylpropan-2-amine Chemical compound CC(C)N([SiH2][SiH3])C(C)C GNZBDLMUHMACNZ-UHFFFAOYSA-N 0.000 description 1
- QLBOOLDBZRQKTJ-UHFFFAOYSA-N N-(disilanylsilyl)-N-propan-2-ylpropan-2-amine Chemical compound CC(C)N([SiH2][SiH2][SiH3])C(C)C QLBOOLDBZRQKTJ-UHFFFAOYSA-N 0.000 description 1
- TZNTZCQBGHKBFH-UHFFFAOYSA-N N-dichlorosilyl-N-propan-2-ylpropan-2-amine Chemical compound CC(C)N(C(C)C)[SiH](Cl)Cl TZNTZCQBGHKBFH-UHFFFAOYSA-N 0.000 description 1
- BIVNKSDKIFWKFA-UHFFFAOYSA-N N-propan-2-yl-N-silylpropan-2-amine Chemical compound CC(C)N([SiH3])C(C)C BIVNKSDKIFWKFA-UHFFFAOYSA-N 0.000 description 1
- UOERHRIFSQUTET-UHFFFAOYSA-N N-propyl-N-silylpropan-1-amine Chemical compound CCCN([SiH3])CCC UOERHRIFSQUTET-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- DSWDPPJBJCXDCZ-UHFFFAOYSA-N ctk0h9754 Chemical compound N[SiH2][SiH3] DSWDPPJBJCXDCZ-UHFFFAOYSA-N 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- QUZPNFFHZPRKJD-UHFFFAOYSA-N germane Chemical compound [GeH4] QUZPNFFHZPRKJD-UHFFFAOYSA-N 0.000 description 1
- 229910052986 germanium hydride Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- BOEIIBPRMGQTJR-UHFFFAOYSA-N n-propan-2-yl-n-trichlorosilylpropan-2-amine Chemical compound CC(C)N(C(C)C)[Si](Cl)(Cl)Cl BOEIIBPRMGQTJR-UHFFFAOYSA-N 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- VEDJZFSRVVQBIL-UHFFFAOYSA-N trisilane Chemical compound [SiH3][SiH2][SiH3] VEDJZFSRVVQBIL-UHFFFAOYSA-N 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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- 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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- H01L21/28506—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers
- 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
- H01L21/28525—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 the conductive layers comprising semiconducting material
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- 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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- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
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- H01L21/76877—Filling of holes, grooves or trenches, e.g. vias, with conductive material
- H01L21/76879—Filling of holes, grooves or trenches, e.g. vias, with conductive material by selective deposition of conductive material in the vias, e.g. selective C.V.D. on semiconductor material, plating
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Description
Claims (6)
- 被処理体の凹部を充填する方法であって、該被処理体は、半導体基板及び該半導体基板上に設けられた絶縁膜を有し、前記凹部は、前記絶縁膜を貫通して前記半導体基板の内部まで延在しており、該方法は、
前記凹部を画成する壁面に沿って半導体材料の第1の薄膜を形成する工程と、
前記第1の薄膜の半導体材料から、前記凹部を画成する前記半導体基板の面に沿って該半導体基板の結晶に応じたエピタキシャル領域を形成する工程であり、前記第1の薄膜を移動させずに該エピタキシャル領域を形成するように前記被処理体が第1の圧力に設定された容器内においてアニールされる、該工程と、
前記凹部を画成する壁面に沿って半導体材料の第2の薄膜を形成する工程と、
前記第2の薄膜の半導体材料から、エピタキシャル領域を更に形成する工程であり、前記凹部の底に向けて移動させた前記第2の薄膜の前記半導体材料から該エピタキシャル領域を更に形成するように前記被処理体が前記第1の圧力よりも低い第2の圧力に設定された容器内においてアニールされる、該工程と、
を含む、方法。 - 前記第1の圧力は133.3Paより高い圧力であり、前記第2の圧力は133.3Pa以下の圧力である、請求項1に記載の方法。
- 前記第1の薄膜を形成する前記工程の前及び/又は前記第2の薄膜を形成する前記工程の前に、アモルファス半導体層であるライナー層を形成する工程を更に含む、請求項1又は2に記載の方法。
- 前記ライナー層を形成する前記工程の前に、アミノシラン系ガス又は高次シランガスからシード層を形成する工程を更に含む、請求項3に記載の方法。
- 前記エピタキシャル領域を形成する前記工程と前記第2の薄膜を形成する前記工程との間に、前記第1の薄膜をエッチングする工程を更に含む、請求項1〜4の何れか一項に記載の方法。
- 前記エピタキシャル領域を更に形成する前記工程の後に、前記第2の薄膜をエッチングする工程を更に含む、請求項1〜5の何れか一項に記載の方法。
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