JP4545107B2 - 膜質の安定な低誘電率膜の形成方法 - Google Patents
膜質の安定な低誘電率膜の形成方法 Download PDFInfo
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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
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
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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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- 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
- C23C16/44—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
- C23C16/50—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
- 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
- C23C16/509—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 using internal electrodes
- C23C16/5096—Flat-bed apparatus
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
- H01J37/32082—Radio frequency generated discharge
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P14/00—Formation of materials, e.g. in the shape of layers or pillars
- H10P14/60—Formation of materials, e.g. in the shape of layers or pillars of insulating materials
- H10P14/63—Formation of materials, e.g. in the shape of layers or pillars of insulating materials characterised by the formation processes
- H10P14/6326—Deposition processes
- H10P14/6328—Deposition from the gas or vapour phase
- H10P14/6334—Deposition from the gas or vapour phase using decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition
- H10P14/6336—Deposition from the gas or vapour phase using decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition in the presence of a plasma [PECVD]
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P14/00—Formation of materials, e.g. in the shape of layers or pillars
- H10P14/60—Formation of materials, e.g. in the shape of layers or pillars of insulating materials
- H10P14/66—Formation of materials, e.g. in the shape of layers or pillars of insulating materials characterised by the type of materials
- H10P14/668—Formation of materials, e.g. in the shape of layers or pillars of insulating materials characterised by the type of materials the materials being characterised by the deposition precursor materials
- H10P14/6681—Formation of materials, e.g. in the shape of layers or pillars of insulating materials characterised by the type of materials the materials being characterised by the deposition precursor materials the precursor containing a compound comprising Si
- H10P14/6684—Formation of materials, e.g. in the shape of layers or pillars of insulating materials characterised by the type of materials the materials being characterised by the deposition precursor materials the precursor containing a compound comprising Si the compound comprising silicon and oxygen
- H10P14/6686—Formation of materials, e.g. in the shape of layers or pillars of insulating materials characterised by the type of materials the materials being characterised by the deposition precursor materials the precursor containing a compound comprising Si the compound comprising silicon and oxygen the compound being a molecule comprising at least one silicon-oxygen bond and the compound having hydrogen or an organic group attached to the silicon or oxygen, e.g. a siloxane
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P14/00—Formation of materials, e.g. in the shape of layers or pillars
- H10P14/60—Formation of materials, e.g. in the shape of layers or pillars of insulating materials
- H10P14/69—Inorganic materials
- H10P14/692—Inorganic materials composed of oxides, glassy oxides or oxide-based glasses
- H10P14/6921—Inorganic materials composed of oxides, glassy oxides or oxide-based glasses containing silicon
- H10P14/6922—Inorganic materials composed of oxides, glassy oxides or oxide-based glasses containing silicon the material containing Si, O and at least one of H, N, C, F or other non-metal elements, e.g. SiOC, SiOC:H or SiONC
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- Materials Engineering (AREA)
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- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Vapour Deposition (AREA)
- Formation Of Insulating Films (AREA)
Description
で示される化合物のいずれかまたは任意の組み合わせを使うことができる。
以下、本発明の実施例を説明するが、本発明はこの実施例に制限されるものではない。各実施例の条件、および結果は以下の通りである。なお、装置は図1に示す装置を使い、凸型上部電極は図2に示すもの、凹型下部電極は図3に記載のものを使った。
被処理体:低誘電率シリコン絶縁膜
上部電極:平坦状態
下部電極:平坦状態(ウエハと全面接触)
DM-DMOS:200sccm
He:140sccm
イソプロピルアルコール:400sccm
O2:200sccm
圧力:800Pa
熱処理温度:380℃
成膜成長速度:800nm/min
誘電率:2.6
ハードネス:1.0GPa
モジュラス:6GPa
アンテナTEG歩留まり:60%
被処理体:低誘電率シリコン絶縁膜
上部電極:1mm凸型
下部電極:0.5mm凹型
DM-DMOS:200sccm
He:140sccm
イソプロピルアルコール:400sccm
O2:200sccm
圧力:800Pa
熱処理温度:380℃
成膜成長速度:790nm/min
誘電率:2.6
ハードネス:1.0GPa
モジュラス:6GPa
アンテナTEG歩留まり:80%
被処理体:低誘電率シリコン絶縁膜
上部電極:3.0mm凸型
下部電極:0.5mm凹型
DM-DMOS:200sccm
He:140sccm
イソプロピルアルコール:400sccm
O2:100sccm
圧力:600Pa
熱処理温度:380℃
誘電率:2.62
成膜成長速度:750 nm/min
ハードネス:1.1GPa
モジュラス:7GPa
アンテナTEG歩留まり:100%
被処理体:低誘電率シリコン絶縁膜
上部電極:1mm凸型
下部電極:0.5mm凹型
DM-DMOS:100sccm
He:140sccm
イソプロピルアルコール:400sccm
O2:100sccm
圧力:600Pa
熱処理温度:380℃
誘電率:2.62
成膜成長速度:450 nm/min
ハードネス:1.2GPa
モジュラス:8GPa
アンテナTEG歩留まり:100%
被処理体:低誘電率シリコン絶縁膜
上部電極:3mm凸型
下部電極:0.5mm凹型
DMOTMDS:250sccm
He:200sccm
イソプロピルアルコール:400sccm
O2:150sccm
熱処理温度:400℃
圧力:800Pa
成膜成長速度:900 nm/min
誘電率:2.5
ハードネス:1.0GPa
モジュラス:5.5GPa
アンテナTEG歩留まり:70%
被処理体:低誘電率シリコン絶縁膜
上部電極:6mm凸型
下部電極:0.5mm凹型
DMOTMDS:250sccm
He:200sccm
イソプロピルアルコール:400sccm
O2:150sccm
圧力:800Pa
熱処理温度:400℃
成膜成長速度:700 nm/min
誘電率:2.5
ハードネス:1.0GPa
モジュラス:5.5GPa
アンテナTEG歩留まり:100%
被処理体:低誘電率シリコン絶縁膜
上部電極:3mm凸型
下部電極:0.5mm凹型
DMOTMDS:125sccm
He:200sccm
イソプロピルアルコール:400sccm
O2:75sccm
圧力:600Pa
熱処理温度:400℃
成膜成長速度:640nm/min
誘電率:2.52
ハードネス:1.2GPa
モジュラス:8GPa
アンテナTEG歩留まり:100%
被処理体:低誘電率シリコン絶縁膜
上部電極:1.5mm凸型
下部電極:0.5mm凹型
DMOTMDS:63sccm
He:100sccm
イソプロピルアルコール:200sccm
O2:37sccm
圧力:600Pa
熱処理温度:400℃
成膜成長速度:450 nm/min
誘電率:2.51
ハードネス:1.1GPa
モジュラス:6GPa
アンテナTEG歩留まり:100%
Claims (13)
- 反応室と、前記反応室内部に設置された上部電極及び下部電極を含むプラズマCVD装置を使って、半導体基板上に薄膜を形成する方法であって、
前記下部電極上に前記半導体基板を載置する工程、
シリコン系炭化水素化合物の材料ガス、添加ガス、および不活性ガスから成る反応ガスを前記上部電極と前記下部電極との間に導入する工程、
前記上部電極と前記半導体基板との距離が前記半導体基板の中心付近の方が外周付近よりも短い状態で、前記上部電極または前記下部電極にRF電力を印加し、プラズマを生成する工程、
成膜速度を790nm/min未満に制御し、前記半導体基板上に低誘電率膜を成膜する工程、
から成り、
前記添加ガスは、水素または炭化水素添加ガス及び酸化性添加ガスから成り、
反応ガスを導入する工程は、前記材料ガス、前記水素または炭化水素系添加ガス、前記酸化性添加ガス、および前記不活性ガスの流量をそれぞれA、B、C及びDとしたとき、流量比がA:B:C:D=0.63〜1.43:2〜2.86:0.37〜1.43:1となるように導入する工程から成る薄膜形成方法。 - 請求項1に記載の薄膜形成方法であって、前記半導体基板の中心付近と前記上部電極との間の距離は、前記半導体基板の外周付近と前記上部電極との間の距離の70%から99%である、ところの薄膜形成方法。
- 請求項2に記載の薄膜形成方法であって、前記上部電極の前記半導体基板に対向する面は凸状であり、凸量は0.5mmから6mmである、ところの薄膜形成方法。
- 請求項1に記載の薄膜形成方法であって、前記水素または炭化水素添加ガスの流量は、前記材料ガスの流量の1.5倍以上である、ところの薄膜形成方法。
- 請求項1に記載の薄膜形成方法であって、前記酸化性添加ガスの流量は、前記材料ガスの流量と同量またはそれ以下である、ところの薄膜形成方法。
- 請求項1に記載の薄膜形成方法であって、前記材料ガスの流量は20sccmから350sccm、前記水素または炭化水素系添加ガスの流量は100sccmから900sccm、前記酸化性添加ガスの流量は25sccmから300sccm、前記不活性ガスの流量は30sccmから700sccmである、ところの薄膜形成方法。
- 請求項1に記載の薄膜形成方法であって、成膜されている前記低誘電率膜はプラズマダメージがなく、ハードネスが1.1GPa以上、モジュラスが6GPa以上である、ところの薄膜形成方法。
- 請求項1に記載の薄膜形成方法であって、前記下部電極表面は凹形状に加工処理されており、前記半導体基板の裏面の外周付近とのみ接触する、ところの薄膜形成方法。
- 請求項8に記載の薄膜形成方法であって、前記下部電極の凹量は0.5mmから2.0mmである、ところの薄膜形成方法。
- 請求項1に記載の薄膜形成方法であって、前記材料ガスは、
(式中、R1、R2、R3およびR4は独立にCH3、C2H5、C3H7、C6H5のいずれかである)、
(式中、R1、R2、R3およびR4は独立にCH3、C2H5、C3H7、C6H5のいずれかである)、
(式中、R1、R2、R3、R4、R5およびR6は独立にCH3、C2H5、C3H7、C6H5のいずれかである)、
(式中、R1、R2、R3、R4、R5およびR6は独立にCH3、C2H5、C3H7、C6H5のいずれかである)、
(式中、R1、R2、R3およびR4は独立にCH3、C2H5、C3H7、C6H5のいずれかである)、及び
(式中、R1、R2、R3、R4、R5およびR6は独立にCH3、C2H5、C3H7、C6H5のいずれかである)、からなる群から選択される少なくとも一つのシリコン系炭化水素化合物である、ところの薄膜形成方法。 - 請求項1に記載の薄膜形成方法であって、前記水素または炭化水素系添加ガスは、CnH2n+2(nは1から5の整数)、CnH2n(nは1から5の整数)、CnH2n+2O(nは1から5の整数)のいずれか、またはこれらの組み合わせから選択される、ところの薄膜形成方法。
- 請求項1に記載の薄膜形成方法であって、前記酸化性添加ガスは、O2、O3、CO2、H2Oのいずれか、またはこれらの組み合わせから選択される、ところの薄膜形成方法。
- 請求項1に記載の薄膜形成方法であって、前記不活性ガスは、He、Ar、Kr、Xeのいずれか、またはこれらの組み合わせから選択される、ところの薄膜形成方法。
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| US11/086,598 US7560144B2 (en) | 2005-03-22 | 2005-03-22 | Method of stabilizing film quality of low-dielectric constant film |
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| JP2006270097A JP2006270097A (ja) | 2006-10-05 |
| JP4545107B2 true JP4545107B2 (ja) | 2010-09-15 |
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| US9659769B1 (en) | 2004-10-22 | 2017-05-23 | Novellus Systems, Inc. | Tensile dielectric films using UV curing |
| US8980769B1 (en) | 2005-04-26 | 2015-03-17 | Novellus Systems, Inc. | Multi-station sequential curing of dielectric films |
| KR100893675B1 (ko) | 2007-05-11 | 2009-04-17 | 주식회사 테스 | 비정질 탄소막 형성 방법 및 이를 이용한 반도체 소자의제조 방법 |
| KR101390349B1 (ko) | 2007-11-22 | 2014-05-02 | (주)소슬 | 아모포스 카본막, 그 형성 방법 및 이를 이용한 반도체소자의 제조 방법 |
| SE532505C2 (sv) | 2007-12-12 | 2010-02-09 | Plasmatrix Materials Ab | Förfarande för plasmaaktiverad kemisk ångdeponering och plasmasönderdelningsenhet |
| JP2015106595A (ja) * | 2013-11-29 | 2015-06-08 | 株式会社日立ハイテクノロジーズ | 熱処理装置 |
| US20160138160A1 (en) * | 2014-11-18 | 2016-05-19 | Lam Research Corporation | Reactive ultraviolet thermal processing of low dielectric constant materials |
| US9847221B1 (en) | 2016-09-29 | 2017-12-19 | Lam Research Corporation | Low temperature formation of high quality silicon oxide films in semiconductor device manufacturing |
| KR20230100631A (ko) | 2021-12-28 | 2023-07-05 | 에이에스엠 아이피 홀딩 비.브이. | 고주파 전력을 갖는 저 유전율 재료 층을 형성하는 방법, 상기 층을 포함하는 구조, 및 이를 형성하기 위한 시스템 |
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| US6228438B1 (en) * | 1999-08-10 | 2001-05-08 | Unakis Balzers Aktiengesellschaft | Plasma reactor for the treatment of large size substrates |
| EP1184894B1 (en) * | 2000-08-29 | 2007-11-21 | Qimonda Dresden GmbH & Co. oHG | Method of operating a susceptor for semiconductor wafers |
| JP2003045849A (ja) | 2001-07-27 | 2003-02-14 | Sanyo Electric Co Ltd | プラズマ処理装置 |
| JP3781730B2 (ja) * | 2002-03-04 | 2006-05-31 | 日本エー・エス・エム株式会社 | 低誘電率及び高機械的強度を有するシリコン系絶縁膜の形成方法 |
| JP4485737B2 (ja) * | 2002-04-16 | 2010-06-23 | 日本エー・エス・エム株式会社 | プラズマcvd装置 |
| JP4591651B2 (ja) * | 2003-02-27 | 2010-12-01 | 東ソー株式会社 | 有機シラン化合物を含んでなる絶縁膜用材料、その製造方法および半導体デバイス |
| JP4032044B2 (ja) * | 2003-06-17 | 2008-01-16 | 株式会社半導体プロセス研究所 | 成膜方法、半導体装置の製造方法及び半導体装置 |
| US7148154B2 (en) * | 2003-08-20 | 2006-12-12 | Asm Japan K.K. | Method of forming silicon-containing insulation film having low dielectric constant and low film stress |
-
2005
- 2005-03-22 US US11/086,598 patent/US7560144B2/en active Active
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2006
- 2006-03-17 JP JP2006074250A patent/JP4545107B2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US7560144B2 (en) | 2009-07-14 |
| US20060216433A1 (en) | 2006-09-28 |
| JP2006270097A (ja) | 2006-10-05 |
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