JP5015705B2 - 層間絶縁膜形成方法、層間絶縁膜、半導体デバイス、および半導体製造装置 - Google Patents
層間絶縁膜形成方法、層間絶縁膜、半導体デバイス、および半導体製造装置 Download PDFInfo
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- JP5015705B2 JP5015705B2 JP2007240721A JP2007240721A JP5015705B2 JP 5015705 B2 JP5015705 B2 JP 5015705B2 JP 2007240721 A JP2007240721 A JP 2007240721A JP 2007240721 A JP2007240721 A JP 2007240721A JP 5015705 B2 JP5015705 B2 JP 5015705B2
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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
- C23C16/22—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
- C23C16/40—Oxides
- C23C16/401—Oxides containing silicon
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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
- H10P14/65—Formation of materials, e.g. in the shape of layers or pillars of insulating materials characterised by treatments performed before or after the formation of the materials
- H10P14/6516—Formation of materials, e.g. in the shape of layers or pillars of insulating materials characterised by treatments performed before or after the formation of the materials of treatments performed after formation of the materials
- H10P14/6529—Formation of materials, e.g. in the shape of layers or pillars of insulating materials characterised by treatments performed before or after the formation of the materials of treatments performed after formation of the materials by exposure to a gas or vapour
- H10P14/6532—Formation of materials, e.g. in the shape of layers or pillars of insulating materials characterised by treatments performed before or after the formation of the materials of treatments performed after formation of the materials by exposure to a gas or vapour by exposure to a plasma
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W20/00—Interconnections in chips, wafers or substrates
- H10W20/01—Manufacture or treatment
- H10W20/071—Manufacture or treatment of dielectric parts thereof
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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
-
- 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
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W20/00—Interconnections in chips, wafers or substrates
- H10W20/40—Interconnections external to wafers or substrates, e.g. back-end-of-line [BEOL] metallisations or vias connecting to gate electrodes
- H10W20/45—Interconnections external to wafers or substrates, e.g. back-end-of-line [BEOL] metallisations or vias connecting to gate electrodes characterised by their insulating parts
- H10W20/48—Insulating materials thereof
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31652—Of asbestos
- Y10T428/31667—Next to addition polymer from unsaturated monomers, or aldehyde or ketone condensation product
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Formation Of Insulating Films (AREA)
- Chemical Vapour Deposition (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
- Physical Vapour Deposition (AREA)
Description
およびを用いることにより、配線の長期信頼性の劣化を抑制できるため、高速、低消費電力なLSIの形成が可能となる。
次に本発明を実施するための最良の形態について図を用いて説明する。
次に第1の実施の形態を用いた実施例1を図を用いて説明する。層間絶縁膜の成膜には用いる原料モノマーには以下に示すものを使用することができる。SiO3員環構造のモノマーでは(式2)〜(式4)に示すモノマーを使用することができる。
ここでτは平均滞在時間(秒)、pはリアクタ圧力(Torr)、Vはリアクタ体積(L)、Sは排気速度(L/sec)である。また排気速度Sは直接藻止めることが出来ないが排気量QはpとSの積で表すことが出来るので(式12)は以下のように変形できる。
式14からリアクタをパージする際、リアクタ圧力が一定であるならば排気量Qはパージガス導入量と等しくなる。そのたパージガス導入量を多くすれば平均滞在時間τを短くすることが出来、分解生成物15が基板に吸着する前に排出可能である。不活性ガスにはヘリウムと窒素の混合ガスを用いた。図3は層間絶縁膜の比誘電率の経時変化を示した図である。この図から平均滞在時間τがなくなるようにパージを行った水準は比誘電率の増加が激しいことが判明した。
次に本発明を実施するための第2の実施の形態を図を用いて説明する。
次に本発明を実施するための第3の実施の形態を図を用いて説明する。
2・・・モノマーリザーバー
3・・・圧送ガス
4・・・液体マスフロー
5・・・気化器
6・・・キャリアガス
7・・・マスフロー
8・・・リアクタ
9・・・RFユニット
10・・・排気ポンプ
11・・・不活性ガス
12・・・上部電極
13・・・下部電極
14・・・基板
15・・・分解生成物
Claims (12)
- 不飽和炭化水素を持つモノマーを使ったプラズマCVD法による層間絶縁膜の成膜方法において、
成膜時に原料モノマーとキャリアガスのみ、あるいは原料モノマーとキャリアガスと不活性ガスのみがリアクタ内に供給され、かつ前記原料モノマーと前記キャリアガスは、原料供給バルブを介して前記リアクタ内に供給され、
前記不活性ガスがヘリウム、窒素、アルゴンの1種類以上からなり、
成膜の高周波電源OFFと同時に前記原料供給バルブを閉じることにより、不活性ガスでパージを行い、
前記不活性ガスによるパージの際の流量が、前記リアクタ内における滞在時間が0.8秒以下となるようにすることを特徴とする層間絶縁膜形成方法。 - 前記不飽和炭化水素を持つモノマーがSiOの3員環構造、4員環構造あるいは直鎖構造を持つことを特徴とする請求項1に記載の層間絶縁膜形成方法。
- 前記SiOの3員環構造を持つ不飽和炭化水素を持つモノマーが、下記式1に示す構造であり、R1は不飽和炭素化合物、R2飽和炭素化合物であり、R1はビニル基、またはアリル基、R2はメチル基、エチル基、プロピル基、イソプロピル基、ブチル基のいずれかであることを特徴とする請求項2に記載の層間絶縁膜形成方法。
- 前記SiOの3員環構造を持つ不飽和炭化水素を持つモノマーが、下記式2、3、4に示す構造のうち少なくともいずれかの1つであることを特徴とする請求項2に記載の層間絶縁膜形成方法。
- 前記SiOの4員環構造を持つ不飽和炭化水素を持つモノマーが、下記式5に示す構造であり、R3は不飽和炭素化合物、R4飽和炭素化合物であり、R1はビニル基またはアリル基、R2はメチル基、エチル基、プロピル基、イソプロピル基、ブチル基のいずれかであることを特徴とする請求項2に記載の層間絶縁膜形成方法。
- 前記SiOの4員環構造を持つ不飽和炭化水素を持つモノマーが下記式6、7、8、9に示す構造のうち少なくともいずれかの1つであることを特徴とする請求項2に記載の層間絶縁膜形成方法。
- 前記SiOの直鎖構造を持つ不飽和炭化水素を持つモノマーが、下記式10に示す構造であり、R5は不飽和炭素化合物、R6、R7、R8は飽和炭素化合物であり、R5はビニル基またはアリル基、R6、R7、R8はメチル基、エチル基、プロピル基、イソプロピル基、ブチル基のいずれかであることを特徴とする請求項2に記載の層間絶縁膜形成方法。
- 前記SiOの直鎖構造を持つ不飽和炭化水素を持つモノマーが下記式11に示す構造であることを特徴とする請求項2に記載の層間絶縁膜形成方法。
- 前記不活性ガスが原料供給ラインとは異なった経路で供給され、かつ前記原料供給ラインは前記原料供給バルブを有することを特徴とする請求項1に記載の層間絶縁膜形成方法。
- 請求項1乃至9のいずれか一項に記載の層間絶縁膜形成方法であって、原料となる不飽和炭化水素を持つモノマーが1種であるプラズマ重合反応、もしくは2種であるプラズマ重合反応を用いることを特徴とする層間絶縁膜形成方法。
- 請求項1乃至10のいずれか一項に記載の層間絶縁膜形成方法によって形成された層間絶縁膜を具備することを特徴とする半導体デバイス。
- 請求項1乃至10のいずれか一項に記載の層間絶縁膜形成方法によって層間絶縁膜を成膜する半導体製造装置。
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| Application Number | Priority Date | Filing Date | Title |
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| JP2007240721A JP5015705B2 (ja) | 2007-09-18 | 2007-09-18 | 層間絶縁膜形成方法、層間絶縁膜、半導体デバイス、および半導体製造装置 |
| US12/212,396 US8598706B2 (en) | 2007-09-18 | 2008-09-17 | Method for forming interlayer dielectric film, interlayer dielectric film, semiconductor device and semiconductor manufacturing apparatus |
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| JP2007240721A JP5015705B2 (ja) | 2007-09-18 | 2007-09-18 | 層間絶縁膜形成方法、層間絶縁膜、半導体デバイス、および半導体製造装置 |
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| JP2012064867A Division JP2012138614A (ja) | 2012-03-22 | 2012-03-22 | 層間絶縁膜形成方法、半導体デバイス、及び半導体製造装置 |
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| JP2009071226A JP2009071226A (ja) | 2009-04-02 |
| JP5015705B2 true JP5015705B2 (ja) | 2012-08-29 |
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| WO2023183149A2 (en) * | 2022-03-23 | 2023-09-28 | Aroop Kumar Roy | Internal diene compounds and their periodic group ix, x and pt group metal complexes for catalyzed reactions including hydrosilylation |
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| US8598706B2 (en) | 2013-12-03 |
| JP2009071226A (ja) | 2009-04-02 |
| US20090127669A1 (en) | 2009-05-21 |
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