JP2020205429A - 表面ブロッキング化学作用を用いた薄膜誘電体の選択的堆積 - Google Patents
表面ブロッキング化学作用を用いた薄膜誘電体の選択的堆積 Download PDFInfo
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- JP2020205429A JP2020205429A JP2020136639A JP2020136639A JP2020205429A JP 2020205429 A JP2020205429 A JP 2020205429A JP 2020136639 A JP2020136639 A JP 2020136639A JP 2020136639 A JP2020136639 A JP 2020136639A JP 2020205429 A JP2020205429 A JP 2020205429A
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- Prior art keywords
- substrate
- silylamide
- terminated
- silyl ether
- film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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- 125000001181 organosilyl group Chemical group [SiH3]* 0.000 claims abstract description 7
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- WNHFEQWRHXLCMK-UHFFFAOYSA-N trimethyl(pyrrol-1-yl)silane Chemical compound C[Si](C)(C)N1C=CC=C1 WNHFEQWRHXLCMK-UHFFFAOYSA-N 0.000 claims description 5
- NQLVIKZJXFGUET-UHFFFAOYSA-N trimethyl(pyrrolidin-1-yl)silane Chemical compound C[Si](C)(C)N1CCCC1 NQLVIKZJXFGUET-UHFFFAOYSA-N 0.000 claims description 5
- WTKZEGDFNFYCGP-UHFFFAOYSA-N Pyrazole Chemical compound C=1C=NNC=1 WTKZEGDFNFYCGP-UHFFFAOYSA-N 0.000 claims description 4
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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
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
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- H01L21/76868—Forming or treating discontinuous thin films, e.g. repair, enhancement or reinforcement of discontinuous thin films
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- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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- 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
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3105—After-treatment
- H01L21/311—Etching the insulating layers by chemical or physical means
- H01L21/31127—Etching organic layers
- H01L21/31133—Etching organic layers by chemical means
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- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
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- G03G15/00—Apparatus for electrographic processes using a charge pattern
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Abstract
Description
ここで、Lは、任意のアミンまたは複素環式アミンに等しくすることができる。アミンのいくつかの特定の例は、ジメチルアミン、ジエチルアミン、ピロリジン、ピラゾールおよびピロールである。
トリメチルシリルアミドを、350℃においてBL1で気相において基板(Si(H)、SiO2 1K、Si(自然酸化膜))を処理することによって、ブロッキング層として試験した。次に同じ温度でSiNのALDを行った。使用したケイ素前駆体は四臭化ケイ素であり、窒素含有前駆体はアンモニア(30T)を含んでいた。合計100サイクル行った。表1は、BL1での様々な長さの2.4トルソークの結果を示す。表2は、30秒間の5トルソークの結果を示す。
Claims (15)
- 膜を堆積させる方法であって、
水酸基終端表面を含む第1の基板表面と、水素終端表面を含む第2の基板表面とを含む基板を準備することと、
前記基板をシリルアミドに曝露して、前記水酸基終端表面と反応させて、シリルエーテル終端表面を形成することと、
前記基板を1種以上の堆積ガスに曝露して、前記シリルエーテル終端表面上よりも第2の基板表面上に選択的に膜を堆積させることと
を含む方法。 - 前記シリルアミドが、有機シリルアミドを含む、請求項1に記載の方法。
- 前記有機シリルアミドが、実質的に炭素および/または窒素原子にのみ結合したケイ素原子を含む、請求項2に記載の方法。
- 前記有機シリルアミドが、実質的にSi−H結合もSi−OH結合も含まない、請求項2に記載の方法。
- 前記有機シリルアミドが、トリメチルシリルアミド、トリエチルシリルアミド、エチルジメチルシリルアミドおよび/またはジエチルメチルシリルアミドのうちの1種以上を含む、請求項2に記載の方法。
- 前記シリルアミドが、ピロリジン、ピロール、ピラゾール、ジメチルアミン、ジエチルアミン、エチルメチルアミン、環状第二級アミン、飽和環状アミンおよび/または不飽和環状アミンのうちの1種以上を含むアミドを含む、請求項1に記載の方法。
- 所定量の膜が堆積された後に、シリルエーテル終端表面をエッチングし、続いてシリルアミンに再曝露してシリルエーテル終端表面を再形成し、追加の膜堆積を行うことをさらに含む、請求項1から6のいずれか一項に記載の方法。
- 前記シリルエーテル終端表面が、100回以下のALD堆積サイクル後にエッチングされ、再形成される、請求項7に記載の方法。
- 前記膜が、SiNを含む、請求項1から6のいずれか一項に記載の方法。
- 前記膜が、ケイ素含有ガスおよび窒素含有ガスへの順次的な曝露を含む原子層堆積によって堆積される、請求項9に記載の方法。
- 前記ケイ素含有ガスが、シラン、ジシラン、トリシラン、モノクロロシラン、ジクロロシラン、トリクロロシラン、四塩化ケイ素、ヘキサクロロジシラン(HCDS)、ハロゲン化カルボシランのうちの1種以上を含む、請求項10に記載の方法。
- 前記窒素含有ガスが、窒素含有プラズマ、アンモニア、アミン、ヒドラジンおよび/または炭窒化物のうちの1種以上を含む、請求項10に記載の方法。
- 膜を堆積させる方法であって、
水酸基終端表面を含む第1の基板表面と、水素終端誘電体を含む第2の基板表面とを含む基板を準備することと、
前記基板をシリルアミドでソークして、前記水酸基終端表面と反応させて、シリルエーテル終端表面を形成することと、
前記基板を1種以上の堆積ガスに曝露して、前記第1の基板表面上よりも前記第2の基板表面上に選択的に窒化ケイ素膜を堆積させることと
を含む方法。 - 前記シリルアミドが、実質的に炭素および/または窒素原子にのみ結合したケイ素原子を含み、実質的にSi−H結合もSi−OH結合も有さず、前記シリルアミドが、ピロリジン、ピロール、ピラゾール、ジメチルアミン、ジエチルアミン、エチルメチルアミン、環状第二級アミン、飽和環状アミンおよび/または不飽和環状アミンのうちの1種以上を含むアミドを含む、請求項13に記載の方法。
- 前記シリルアミドが、1−トリメチルシリルピロリジン、1−トリメチルシリルピロールおよび/または3,5−ジメチル−1−トリメチルシリルピラゾールのうちの1種以上を含む、請求項1から6、13および14のいずれか一項に記載の方法。
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US201562155529P | 2015-05-01 | 2015-05-01 | |
US62/155,529 | 2015-05-01 |
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