JP3841096B2 - 配線パターンの形成方法、多層配線基板の製造方法、電子機器 - Google Patents
配線パターンの形成方法、多層配線基板の製造方法、電子機器 Download PDFInfo
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- JP3841096B2 JP3841096B2 JP2004282217A JP2004282217A JP3841096B2 JP 3841096 B2 JP3841096 B2 JP 3841096B2 JP 2004282217 A JP2004282217 A JP 2004282217A JP 2004282217 A JP2004282217 A JP 2004282217A JP 3841096 B2 JP3841096 B2 JP 3841096B2
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01L21/02—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
- H01L21/28—Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
- H01L21/283—Deposition of conductive or insulating materials for electrodes conducting electric current
- H01L21/288—Deposition of conductive or insulating materials for electrodes conducting electric current from a liquid, e.g. electrolytic deposition
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
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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
- C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01L21/02—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
- H01L21/48—Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the groups H01L21/18 - H01L21/326 or H10D48/04 - H10D48/07
- H01L21/4814—Conductive parts
- H01L21/4846—Leads on or in insulating or insulated substrates, e.g. metallisation
- H01L21/4867—Applying pastes or inks, e.g. screen printing
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
- H05K3/12—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using thick film techniques, e.g. printing techniques to apply the conductive material or similar techniques for applying conductive paste or ink patterns
- H05K3/1241—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using thick film techniques, e.g. printing techniques to apply the conductive material or similar techniques for applying conductive paste or ink patterns by ink-jet printing or drawing by dispensing
- H05K3/125—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using thick film techniques, e.g. printing techniques to apply the conductive material or similar techniques for applying conductive paste or ink patterns by ink-jet printing or drawing by dispensing by ink-jet printing
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
- H05K3/12—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using thick film techniques, e.g. printing techniques to apply the conductive material or similar techniques for applying conductive paste or ink patterns
- H05K3/1258—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using thick film techniques, e.g. printing techniques to apply the conductive material or similar techniques for applying conductive paste or ink patterns by using a substrate provided with a shape pattern, e.g. grooves, banks, resist pattern
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/46—Manufacturing multilayer circuits
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1345—Conductors connecting electrodes to cell terminals
- G02F1/13452—Conductors connecting driver circuitry and terminals of panels
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01L21/76801—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 dielectrics, e.g. smoothing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01L21/76801—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 dielectrics, e.g. smoothing
- H01L21/76822—Modification of the material of dielectric layers, e.g. grading, after-treatment to improve the stability of the layers, to increase their density etc.
- H01L21/76825—Modification of the material of dielectric layers, e.g. grading, after-treatment to improve the stability of the layers, to increase their density etc. by exposing the layer to particle radiation, e.g. ion implantation, irradiation with UV light or electrons etc.
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09818—Shape or layout details not covered by a single group of H05K2201/09009 - H05K2201/09809
- H05K2201/09909—Special local insulating pattern, e.g. as dam around component
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/01—Tools for processing; Objects used during processing
- H05K2203/0104—Tools for processing; Objects used during processing for patterning or coating
- H05K2203/013—Inkjet printing, e.g. for printing insulating material or resist
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/05—Patterning and lithography; Masks; Details of resist
- H05K2203/0562—Details of resist
- H05K2203/0568—Resist used for applying paste, ink or powder
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- H05K3/46—Manufacturing multilayer circuits
- H05K3/4644—Manufacturing multilayer circuits by building the multilayer layer by layer, i.e. build-up multilayer circuits
- H05K3/4664—Adding a circuit layer by thick film methods, e.g. printing techniques or by other techniques for making conductive patterns by using pastes, inks or powders
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- H10K59/17—Passive-matrix OLED displays
- H10K59/179—Interconnections, e.g. wiring lines or terminals
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Description
本発明はこのような事情に鑑みてなされたものであって、微細な配線パターンを精度良く安定して形成することのできる方法を提供することを目的とする。また、配線パターンの微細化により高密度な多層配線構造を可能とした多層配線基板の製造方法を提供することを目的とする。さらに、このような多層配線基板を備えた接続信頼性の高い電子機器を提供することを目的とする。
本方法では、液体材料の配置される領域を隔壁によって区画しているので、この区画領域を越えて液体材料が広がることはない。したがって、従来に比べて微細且つ均一な幅を有する配線パターンを形成することができる。また本方法では、区画領域の周囲に配置した樹脂材料は完全には硬化していないので、完全硬化させた場合と違って、基板の親液化処理により流動させることができる。すなわち、この流動を利用することによって前記区画領域の狭小化が可能になり、本来液滴吐出装置等で実現可能な配線幅よりも狭い配線幅を実現できるようになる。
このようにエキシマUV光を用いることにより、親液化処理を簡便に行なうことができるようになる。
液滴吐出法を用いることで、材料の無駄が少なくなり、より低コストで配線パターンを形成できるようになる。なお、液滴吐出法ではフォトリソグラフィ法よりも粗いピッチのパターンしか形成できないが、本発明においては、樹脂材料の配置後に行なわれる親液化処理によって樹脂材料のピッチを調節できるため、樹脂材料を配置する段階では、ピッチはさほど狭くなっている必要はない。むしろ、製造時間の短縮や材料コストの低減を図ることのできる本方法を採用するメリットの方が大きいといえる。
この方法によれば、微細な配線パターンを高密度に配置した多層配線基板を提供することができる。
この構成によれば、電気的接続の信頼性に優れた電子機器を提供することができる。
図2は、本実施形態の配線パターンの説明図であって、FPCの配線形成部分の拡大図である。なお、図2(a)は図2(b)のB−B線における平面断面図であり、図2(b)は図2(a)のA−A線における側面断面図である。図2(b)に示すように、本実施形態の配線パターンは、下層の電気配線32と上層の電気配線36とが、層間絶縁膜54を介して積層された構成となっている。なお、以下の配線パターンはほんの一例に過ぎず、これ以外の配線パターンに本発明を適用することも可能である。
以上には、2層の電気配線32,36を備えた配線パターンを例にして説明したが、3層以上の電気配線を備えた配線パターンとすることも可能である。この場合、第1層の電気配線32から第2層の電気配線36までの構造と同様に、第n層の電気配線から第n+1層の電気配線までを形成すればよい。
次に、実施形態に係る配線パターンの形成方法について説明する。
図3は、実施形態に係る配線パターンの形成方法の工程表である。また図4は、実施形態に係る配線パターンの形成方法の説明図である。以下、図3の左端欄のステップ番号の順に、各工程を説明する。
次に、吐出された樹脂材料を硬化させる(ステップ3)。具体的には、波長365nmのUVを4秒程度照射して、下地絶縁膜51の形成材料であるUV硬化性樹脂を硬化させる。これにより、下地絶縁膜51の形成領域の周縁部に、土手(堰)が形成される。
次に、吐出された樹脂材料を硬化させる(ステップ5)。具体的には、波長365nmのUVを60秒程度照射して、下地絶縁膜51の形成材料であるUV硬化性樹脂を硬化させる。これにより、図4(a)に示すように、フィルム基板31の表面に下地絶縁膜51が形成される。
図5〜図8は、層内絶縁膜54A及び電気配線32の形成方法の一例を示す工程図である。これらの図において、(a)は図2(a)に対応する平面断面図であり、(b)は(a)のC−C断面を示す側断面図である。
以上により、下地絶縁膜51の表面に液状ライン54pが形成される。
図7は、樹脂膜54Bが流動した後の状態を示す図である。このように樹脂膜54Bの流動を利用することで、液滴吐出装置20によって実現可能なピッチよりも狭いピッチで樹脂膜54Bを配置することができる。
また、分散媒の蒸気圧は、0.001mmHg以上、50mmHg以下(約0.133Pa以上、6650Pa以下)であることがより好ましい。蒸気圧が50mmHgより高い場合には、液滴吐出方式で液滴を吐出する際に乾燥によるノズル詰まりが起こり易く、安定な吐出が困難となるためである。一方、室温での蒸気圧が0.001mmHgより低い分散媒の場合、乾燥が遅くなり膜中に分散媒が残留しやすくなり、後工程の熱および/または光処理後に良質の導電膜が得られにくい。
表面張力を調整するため、上記分散液L2には、下地絶縁膜51との接触角を不当に低下させない範囲で、フッ素系、シリコン系、ノニオン系などの表面張力調節剤を微量添加することができる。ノニオン系表面張力調節剤は、下地絶縁膜51への濡れ性を良好化し、膜のレベリング性を改良し、塗膜のぶつぶつの発生、ゆず肌の発生などの防止に役立つものである。上記分散液L2は、必要に応じて、アルコール、エーテル、エステル、ケトン等の有機化合物を含んでいても差し支えない。
以上により、下地絶縁膜51の表面に液状ライン32pが形成される。
次に、吐出された液体材料を乾燥し、続いて、液体材料中の樹脂材料を硬化させる(ステップ16)。具体的には、波長365nmのUVを60秒程度照射して、層間絶縁膜54の形成材料であるUV硬化性樹脂を硬化させる。これにより、図5(d)に示す層間絶縁膜54が形成される。
以上により、図2に示す本実施形態の多層配線基板が製造される。
次に、液滴吐出方式に用いられる液滴吐出装置につき、図10および図11を用いて説明する。
図10は、液滴吐出装置の斜視図である。図10において、X方向はベース12の左右方向であり、Y方向は前後方向であり、Z方向は上下方向である。液滴吐出装置10は、液滴吐出ヘッド(以下、単にヘッドと呼ぶ)20と、基板31を載置するテーブル46とを主として構成されている。なお、液滴吐出装置10の動作は、制御装置23により制御されるようになっている。
本実施形態では、FPCの配線パターンを例にして説明した。そこで、図1に戻り、そのFPCが採用された電気光学装置の一例である液晶モジュールについて説明する。
図1は、COF(Chip On Film)構造の液晶モジュールの分解斜視図である。液晶モジュール1は、大別すると、カラー表示用の液晶パネル2と、液晶パネル2に接続されるFPC30と、FPC30に実装される液晶駆動用IC100とを備えている。なお必要に応じて、バックライト等の照明装置やその他の付帯機器が、液晶パネル2に付設される。
次に、本実施形態の膜形成方法を使用して製造した電子機器につき、図12を用いて説明する。図12は、携帯電話の斜視図である。図12において符号1000は携帯電話を示し、符号1001は表示部を示している。この携帯電話1000の表示部1001には、本実施形態の配線パターンを備えた電気光学装置が採用されている。したがって、電気的接続の信頼性に優れた小型の携帯電話1000を提供することができる。
本発明は、上記携帯電話に限らず、電子ブック、パーソナルコンピュータ、ディジタルスチルカメラ、液晶テレビ、ビューファインダ型あるいはモニタ直視型のビデオテープレコーダ、カーナビゲーション装置、ページャ、電子手帳、電卓、ワードプロセッサ、ワークステーション、テレビ電話、POS端末、タッチパネル等の電子機器の画像表示手段として好適に用いることができ、いずれの場合でも、電気的接続の信頼性に優れた小型の電子機器を提供することができる。
Claims (7)
- 隔壁によって区画された配線パターン形成領域に導電材料を含む液体材料を配置することにより配線パターンを形成する方法であって、
前記配線パターン形成領域の周囲に樹脂材料を配置する工程と、
前記配線パターン形成領域と前記樹脂材料が流動する領域とからなる前記樹脂材料によって区画された区画領域に親液化処理を施し、前記配線パターン形成領域側に前記樹脂材料を流動させることによって、前記区画領域を狭小化する工程と、
前記樹脂材料を硬化して前記隔壁を形成する工程と、
前記配線パターン形成領域に前記液体材料を配置する工程と、を備えたことを特徴とする、配線パターンの形成方法。 - 前記樹脂材料が未硬化若しくは半硬化の状態で配置されることを特徴とする、請求項1記載の配線パターンの形成方法。
- 前記親液化処理が前記区画領域にエキシマUV光を照射することによって行なわれることを特徴とする、請求項1又は2記載の配線パターンの形成方法。
- 前記エキシマUV光が波長172nmの光であることを特徴する、請求項3記載の配線パターンの形成方法。
- 前記樹脂材料の配置工程が、液滴吐出法により行なわれることを特徴とする、請求項1〜4のいずれかの項に記載の配線パターンの形成方法。
- 絶縁膜を介して積層された複数の配線層を有し、各配線層の配線パターンが前記絶縁膜を貫通する導通ポストを介して導通接続されてなる多層配線基板の製造方法であって、
前記複数の配線層のうち少なくとも1つの配線層を構成する配線パターンが、請求項1〜5のいずれかの項に記載の配線パターンの形成方法により形成されることを特徴とする、多層配線基板の製造方法。 - 請求項6記載の方法により製造された多層配線基板を備えたことを特徴とする、電子機器。
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JP2004282217A JP3841096B2 (ja) | 2004-09-28 | 2004-09-28 | 配線パターンの形成方法、多層配線基板の製造方法、電子機器 |
TW094129506A TWI289419B (en) | 2004-09-28 | 2005-08-29 | Wiring pattern formation method, manufacturing method for multi layer wiring substrate, and electronic device |
KR1020050085758A KR100691715B1 (ko) | 2004-09-28 | 2005-09-14 | 배선 패턴의 형성 방법, 다층 배선 기판의 제조 방법 |
CNB2005101068286A CN100512598C (zh) | 2004-09-28 | 2005-09-23 | 配线图案的形成方法、多层配线基板的制法和电子设备 |
US11/235,634 US7316974B2 (en) | 2004-09-28 | 2005-09-26 | Wiring pattern formation method, manufacturing method for multi layer wiring substrate, and electronic device |
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