JP2006140264A - Electromagnetic wave shield film, and manufacturing method thereof - Google Patents

Electromagnetic wave shield film, and manufacturing method thereof Download PDF

Info

Publication number
JP2006140264A
JP2006140264A JP2004327657A JP2004327657A JP2006140264A JP 2006140264 A JP2006140264 A JP 2006140264A JP 2004327657 A JP2004327657 A JP 2004327657A JP 2004327657 A JP2004327657 A JP 2004327657A JP 2006140264 A JP2006140264 A JP 2006140264A
Authority
JP
Japan
Prior art keywords
conductive pattern
metal layer
photosensitive resin
resin layer
electromagnetic wave
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
Application number
JP2004327657A
Other languages
Japanese (ja)
Other versions
JP4657685B2 (en
Inventor
Masaharu Seki
雅治 関
Tokihiro Umeda
旬宏 梅田
Soichi Matsuzaki
壮一 松崎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lincstech Circuit Co Ltd
Original Assignee
Hitachi AIC Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi AIC Inc filed Critical Hitachi AIC Inc
Priority to JP2004327657A priority Critical patent/JP4657685B2/en
Publication of JP2006140264A publication Critical patent/JP2006140264A/en
Application granted granted Critical
Publication of JP4657685B2 publication Critical patent/JP4657685B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

<P>PROBLEM TO BE SOLVED: To form an electromagnetic wave shield film by a simple method at a low cost which has an excellent light transmission property and a shielding effect for an electromagnetic wave. <P>SOLUTION: A photosensitive resin layer 4 whose bonding property or adhesion increases or decreases when exposed to light on the surface of a metal layer 2 or its base material. The difference of the bonding property or adhesion is peeled from a transparent substrate 1 other than the conductive pattern of the metal layer, and deleted. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は,CRT、液晶、プラズマ等のデスプレーなどから発生する有害な電磁波を効果的に遮断する電磁波シールドフィルムの製造方法およびそのフィルムに関するものである。特に、導電パターンを有する電磁波シールドフィルムの製造方法およびそのフィルムに関するものである。   The present invention relates to a method for producing an electromagnetic wave shielding film that effectively blocks harmful electromagnetic waves generated from a display such as a CRT, a liquid crystal, or a plasma, and the film. In particular, the present invention relates to a method for producing an electromagnetic wave shielding film having a conductive pattern and the film.

従来、CRT、液晶、プラズマ等のデスプレーなどから発生する有害な電磁波を遮断する電磁波シールド用透明シートには、透光性と電磁波の遮断効果を両立させるために、透明基板の表面に格子状の金属を設けていた(たとえば、特許文献1)。
特開平3−35284
Conventionally, a transparent sheet for electromagnetic wave shielding that blocks harmful electromagnetic waves generated from a display such as CRT, liquid crystal, plasma, etc. has a lattice-like shape on the surface of a transparent substrate in order to achieve both translucency and electromagnetic wave blocking effect. Metal was provided (for example, Patent Document 1).
JP-A-3-35284

しかしながら、透明基板の表面に格子状の金属を設けるには、透明基板の表面全面に金属層を箔、めっきまたは蒸着により形成後、レジストフィルム貼り付け−露光−現像−ケミカルエッチング−レジストフィルムのウエットはく離のフォトリソグラフィー工法を利用して細線加工製造することから、きわめてコスト高になっていた。   However, in order to provide a grid-like metal on the surface of the transparent substrate, a metal layer is formed on the entire surface of the transparent substrate by foil, plating or vapor deposition, and then a resist film is attached-exposure-development-chemical etching-resist film wet. Since the fine line processing is performed by using the peeling photolithography method, the cost is extremely high.

本発明は上記の課題を解決するために、透明基板上に金属層を設けてそれを導電パターン状に加工する電磁波シールドフィルムの製造方法において、前記金属層の表面、または下地の少なくとも一方に、感光により接着性または粘着性が増加または減少する感光性樹脂層を設け、その接着性または粘着性の差により前記金属層中の前記導電パターン以外部分を前記透明基板から引きはがして削除することを特徴とする電磁波シールドフィルムの製造方法を提供するものである。
また、より具体的には、導電パターンを有する電磁波シールドフィルムの製造方法において、透明基板上に金属層を積層する第1工程と、前記金属層上に、感光により接着性または粘着性が増加または減少する感光性樹脂層とその上に支持体の構成で設けることと、その間にまたはその後に前記導電パターンに対応して露光する第2工程と、前記支持体を前記透明基板から引きはがして、前記金属層の前記導電パターン以外部分が前記感光性樹脂層表面に転写することにより、前記金属層が前記導電パターン状に加工される第3工程と、を有する電磁波シールドフィルムの製造方法を提供するものである。
また、導電パターンを有する電磁波シールドフィルムの製造方法において、
透明基板上に感光により接着性または粘着性が増加または減少する感光性樹脂層を積層する第1工程と、前記感光性樹脂層上に、金属層その上に粘着層とその上に支持体の構成で設けることと、その前に、その間にまたはその後に前記導電パターンに対応して露光する第2工程と、前記支持体を前記透明基板から引きはがして、前記金属層の前記導電パターン以外部分が前記粘着層に転写することにより、前記金属層が前記導電パターン状に加工される第3工程と、を有する電磁波シールドフィルムの製造方法を提供するものである。
また、導電パターンを有する電磁波シールドフィルムの製造方法において、透明基板上に感光により接着性または粘着性が増加または減少する正の感光性樹脂層と、その上に金属層と、その上に感光により接着性または粘着性が減少または増加する逆の感光性樹脂層と、その上に支持体の構成で設けることと、その間にまたはその後に前記導電パターンに対応して前記正の感光性樹脂および前記逆の感光性樹脂面を露光する第1工程と、前記支持体を前記透明基板から引きはがして、前記金属層の前記導電パターン部分が前記正の感光性樹脂層表面に転写するか、または前記金属層の前記導電パターン以外部分が前記逆の感光性樹脂層表面に転写することにより、前記金属層が前記導電パターン状に加工される第2工程と、を有する電磁波シールドフィルムの製造方法を提供するものである。
また、導電パターンを有する電磁波シールドフィルムにあって、前記導電パターン部分の直下に感光により接着性または粘着性が減少しない感光性樹脂層を透明基板に設けることを特徴とする電磁波シールドフィルムを提供するものである。
In order to solve the above problems, the present invention provides a method for producing an electromagnetic wave shielding film in which a metal layer is provided on a transparent substrate and processed into a conductive pattern, and at least one of a surface of the metal layer or a base, A photosensitive resin layer whose adhesiveness or tackiness is increased or decreased by light exposure is provided, and a portion other than the conductive pattern in the metal layer is peeled off from the transparent substrate due to the difference in adhesiveness or tackiness. The manufacturing method of the electromagnetic wave shielding film characterized by the above is provided.
More specifically, in the method for producing an electromagnetic wave shielding film having a conductive pattern, the first step of laminating a metal layer on a transparent substrate, and the adhesiveness or tackiness is increased or photosensitized on the metal layer. A photosensitive resin layer to be reduced and a support structure provided thereon; a second step in which exposure is performed in correspondence with or after the conductive pattern; and the support is peeled off from the transparent substrate; And a third step in which the metal layer is processed into the conductive pattern by transferring a portion other than the conductive pattern of the metal layer to the surface of the photosensitive resin layer. Is.
Moreover, in the method for producing an electromagnetic wave shielding film having a conductive pattern,
A first step of laminating a photosensitive resin layer whose adhesion or tackiness is increased or decreased by exposure on a transparent substrate; a metal layer on the photosensitive resin layer; an adhesive layer on the metal layer; and a support on the metal layer. A second step of exposing in correspondence with the conductive pattern before, during or after the provision of the structure, and peeling off the support from the transparent substrate, so that the metal layer has a portion other than the conductive pattern. Is transferred to the adhesive layer, thereby providing a third step in which the metal layer is processed into the shape of the conductive pattern.
Further, in the method for producing an electromagnetic wave shielding film having a conductive pattern, a positive photosensitive resin layer whose adhesion or tackiness is increased or decreased by light exposure on a transparent substrate, a metal layer thereon, and light exposure thereon. The opposite photosensitive resin layer whose adhesion or tackiness is reduced or increased, and provided thereon in the configuration of a support, and the intermediate photosensitive resin and the positive photosensitive resin corresponding to the conductive pattern between or after A first step of exposing the opposite photosensitive resin surface, and the support is peeled off from the transparent substrate, and the conductive pattern portion of the metal layer is transferred to the surface of the positive photosensitive resin layer, or A second step in which a portion of the metal layer other than the conductive pattern is transferred to the surface of the opposite photosensitive resin layer, whereby the metal layer is processed into the conductive pattern. There is provided a method of manufacturing the field film.
The present invention also provides an electromagnetic wave shielding film having a conductive pattern, wherein a photosensitive resin layer that does not reduce adhesion or tackiness due to photosensitivity is provided on a transparent substrate immediately below the conductive pattern portion. Is.

以上の通り、本発明によれば、優れた透光性と優れた電磁波の遮蔽効果を有する電磁波シールドフィルムを、簡易な方法でかつ低コストで製造することができる。
As described above, according to the present invention, an electromagnetic wave shielding film having excellent translucency and excellent electromagnetic wave shielding effect can be produced by a simple method and at low cost.

以下、本発明を詳細に説明する。
本発明でいう透明基板とは、主に、ポリエチレンテレフタレート、ポリエチレンナフタレートなどのポリエステル類、ポリエチレン、ポリプロピレン、ポリスチレン、EVAなどのポリオレフィン類、ポリ塩化ビニル、ポリ塩化ビニリデンなどのビニル系樹脂、ポリサルホン、ポリエーテルサルホン、ポリカーボネート、ポリアミド、ポリイミド、アクリル樹脂などのプラスチックからなるフィルムで全可視光透過率が70%以上のものをいう。これらは本発明の目的を妨げない程度に着色していても良く、さらに単層で使うこともできるが、2層以上を組み合わせた多層フィルムとして使っても良い。このうち透明性、耐熱性、取り扱いやすさ、価格の点からポリエチレンテレフタレートフィルムが最も適している。この透明プラスチック基材の厚みは、薄いと取り扱い性が悪く、厚いと可視光の透過率が低下するため5〜300μmが好ましい。さらに好ましくは、10〜200μmが、より好ましくは、25〜100μmである。また、同程度のガラス板、セラミック板等の透明板でもかまわない。
Hereinafter, the present invention will be described in detail.
The transparent substrate referred to in the present invention mainly includes polyesters such as polyethylene terephthalate and polyethylene naphthalate, polyolefins such as polyethylene, polypropylene, polystyrene and EVA, vinyl resins such as polyvinyl chloride and polyvinylidene chloride, polysulfone, A film made of plastic such as polyethersulfone, polycarbonate, polyamide, polyimide, acrylic resin, etc., having a total visible light transmittance of 70% or more. These may be colored to such an extent that they do not interfere with the object of the present invention, and can be used as a single layer, but may be used as a multilayer film in which two or more layers are combined. Of these, a polyethylene terephthalate film is most suitable in terms of transparency, heat resistance, ease of handling, and cost. The thickness of the transparent plastic substrate is preferably 5 to 300 μm because the handleability is poor when it is thin, and the transmittance of visible light decreases when it is thick. More preferably, it is 10-200 micrometers, More preferably, it is 25-100 micrometers. A transparent plate such as a glass plate or a ceramic plate having the same degree may be used.

本発明の金属層とは、主に、銅、アルミニウム、ニッケル、コバルト、鉄、金、銀、ステンレス、タングステン、クロム、チタン、タンタル、珪素、亜鉛、錫などの金属やそれらを組み合わせた合金、層状体をいう。またリン、硼素などの添加物や、導電性が影響ない程度に有機物が混合されていてもかまわない。導電性、回路加工の容易さ、価格の点から銅、アルミニウムまたはニッケルが適しており、厚みが0.1μm〜10μmの金属であることが好ましい。より好ましくは、0.5μm〜5μmである。厚みが10μm以上では、ライン幅の形成が困難であったり、視野角が狭くなったりするためであり、厚みが0.1μm以下では、表面抵抗が大きくなり、シールド効果に劣るためである。金属層が、銅であり、少なくともその表面が黒化処理されたものであると、コントラストが高くなり好ましい。また、金属層が経時的に酸化され退色されることが防止できる。また、金属層が、常磁性金属であると、磁場シールド性に優れるために好ましい。真空蒸着法、スパッタリング法、イオンプレート法、化学蒸着法、無電解・電気めっき法などの薄膜形成技術のうち、1または2個以上の方法を組み合わせることにより達成できる。また、金属層が上記方法の転写膜でもまたは薄箔でもあっても良く、その場合、直接または接着剤等で透明シートに張り合わされる。簡易な方法でかつ低コストまた膜の引き裂き容易性の点から真空蒸着法が最も好ましい。   The metal layer of the present invention is mainly a metal such as copper, aluminum, nickel, cobalt, iron, gold, silver, stainless steel, tungsten, chromium, titanium, tantalum, silicon, zinc, tin or an alloy combining them, A layered body. Further, additives such as phosphorus and boron, and organic substances may be mixed to such an extent that conductivity is not affected. Copper, aluminum, or nickel is suitable from the viewpoint of conductivity, ease of circuit processing, and cost, and a metal having a thickness of 0.1 μm to 10 μm is preferable. More preferably, it is 0.5 μm to 5 μm. If the thickness is 10 μm or more, it is difficult to form the line width or the viewing angle becomes narrow. If the thickness is 0.1 μm or less, the surface resistance increases and the shielding effect is poor. It is preferable that the metal layer is copper and at least the surface thereof is blackened because the contrast becomes high. In addition, the metal layer can be prevented from being oxidized and faded over time. In addition, it is preferable that the metal layer is a paramagnetic metal because of excellent magnetic field shielding properties. This can be achieved by combining one or more methods among thin film forming techniques such as vacuum deposition, sputtering, ion plate, chemical vapor deposition, and electroless / electroplating. Further, the metal layer may be a transfer film of the above method or a thin foil, and in that case, the metal layer is bonded to the transparent sheet directly or with an adhesive or the like. The vacuum deposition method is the most preferable because it is a simple method, low cost, and easy to tear the film.

本発明中の導電パターンには特に限定はないが、正三角形、二等辺三角形、直角三角形などの三角形、正方形、長方形、ひし形、平行四辺形、台形などの四角形、(正)六角形、(正)八角形、(正)十二角形、(正)二十角形などの(正)n角形、円、だ円、星形などを組み合わせた模様も含まれ、これら単位の単独の繰り返しあるいは2種類以上の組み合わせで使うこともできる。このような格子状導電パターンライン幅は、40μm以下、ライン間隔は200μm以上、の範囲が好ましい。また非視認性の観点からライン幅は25μm以下、可視光透過率の点からライン間隔は300μm以上がさらに好ましい。ライン間隔は、大きいほど可視光透過率は向上するが、この値が大きくなり過ぎると、EMIシールド性が低下するため、1mm以下とするのが好ましい。ストライプ状導電パターンは、断線の問題もあり好ましくはないが、品質が向上すれば、採用してもかまわない。   The conductive pattern in the present invention is not particularly limited, but is a triangle such as a regular triangle, an isosceles triangle, a right triangle, a square such as a square, a rectangle, a rhombus, a parallelogram, a trapezoid, a (positive) hexagon, ) Also includes patterns that combine (positive) n-gons such as octagons, (positive) dodecagons, (positive) icosahedrons, circles, ellipses, stars, etc. These units can be repeated alone or in two types It can also be used in the above combinations. Such a grid-like conductive pattern line width is preferably in a range of 40 μm or less and a line interval of 200 μm or more. Further, the line width is more preferably 25 μm or less from the viewpoint of invisibility, and the line interval is more preferably 300 μm or more from the viewpoint of visible light transmittance. The larger the line interval, the better the visible light transmittance. However, if this value becomes too large, the EMI shielding property is deteriorated, so that it is preferably 1 mm or less. The stripe-shaped conductive pattern is not preferable because of the problem of disconnection, but may be adopted if the quality is improved.

本発明の感光性樹脂とは、特に、感光により接着性または粘着性が増加または減少する感光性樹脂をさし、正の感光性樹脂と逆の感光性樹脂とは、ふたつの感光性樹脂を金属層の両側に配置される、請求項4に係るようなひとつの製造方法において、感光により金属層の一面が接着性または粘着性が増加し、他面が減少する樹脂の組み合わせを便宜的に表現している。
感光により接着性または粘着性が増加ものとして、たとえば、ジアゾニウム塩などの光分解タイプや、桂皮酸エステル系などの光二量化タイプや、不飽和ポリエステル、不飽和ポリウレタン、不飽和エポキシ樹脂、オリゴエステル(メタ)アクリレート、ポリエーテル(メタ)アクリレート、共役ジエン系共重合体などの不飽和オリゴマー(プレポリマー)に、ベンゾフェノン、ジメトキシフェニルアセトフェノン、2−エチルアントラキノンなどの光重合開始剤(増感剤)を添加した光重合タイプや、ジグリシジルビスフェノールAエーテルなどの環式脂肪族エポキシ化合物のエポキシ基などをp−メトキシベンゼンジアゾニウムヘキサフルオロホスフェートなどの光カチオン触媒で光開冠重合させる光カチオン重合タイプなどが使用できる。また、熱によりラジカルが発生する場合には熱重合禁止剤も添加すると光の当たった部分のみの組成物が光硬化するので好ましい。
感光により接着性または粘着性が減少するものとして、たとえば、アクリル酸アルキルエステル系やメタクリル酸アルキルエステル系などポリマー内に光重合性の不飽和結合を導入した重合性ポリマーに、たとえばテトラメチロールメタンテトラアクリレート、ペンタエリスリトールトリアクリレートなどの光重合性の多官能オリゴマーを添加し、光照射により硬化収縮や弾性率の低下を利用したものなどが使用できる。
本発明の感光性樹脂にはその他、柔軟物性改質用としてポリマーを充填したり、粘着付与剤、密着助剤、分散剤、可塑剤、垂れ防止剤、レベリング剤、消泡剤、難燃化剤、着色剤等の補助的添加剤を必要に応じて配合したりしても良い。
感光の光源としては、高圧水銀灯、エキシマレーザ、ケミカルランプ、キセノンランプ、メタルハライドランプなど使用する感光性樹脂に適したものが適宜使用される。
露光方法としては、感光性樹脂にフォトマスクの像を結ばせるプロジェクション露光方法のほか、スキャニング露光方法、レーザスキャニング方法等を利用する。
The photosensitive resin of the present invention refers to a photosensitive resin whose adhesiveness or tackiness is increased or decreased by photosensitivity, and the positive photosensitive resin and the opposite photosensitive resin are two photosensitive resins. In one manufacturing method according to claim 4, which is disposed on both sides of the metal layer, for convenience, a combination of resins in which one surface of the metal layer is increased in adhesion or tackiness by exposure and the other surface is decreased. expressing.
For example, photo-decomposition type such as diazonium salt, photo-dimerization type such as cinnamate ester type, unsaturated polyester, unsaturated polyurethane, unsaturated epoxy resin, oligoester ( Photopolymerization initiators (sensitizers) such as benzophenone, dimethoxyphenylacetophenone, and 2-ethylanthraquinone are added to unsaturated oligomers (prepolymers) such as (meth) acrylate, polyether (meth) acrylate, and conjugated diene copolymers. Addition of photopolymerization type, photocationic polymerization type of photoopening polymerization of epoxy group of cycloaliphatic epoxy compounds such as diglycidyl bisphenol A ether with photocationic catalyst such as p-methoxybenzenediazonium hexafluorophosphate, etc. Can be used . In the case where radicals are generated by heat, it is preferable to add a thermal polymerization inhibitor because the composition only in the exposed portion is photocured.
Examples of the adhesive or tackiness that are reduced by light exposure include, for example, tetramethylol methane tetra terpolymer to polymerizable polymers in which a photopolymerizable unsaturated bond is introduced into the polymer such as alkyl acrylate ester or alkyl methacrylate ester. A photopolymerizable polyfunctional oligomer such as acrylate or pentaerythritol triacrylate can be added, and those utilizing curing shrinkage and a decrease in elastic modulus by light irradiation can be used.
In addition, the photosensitive resin of the present invention is filled with a polymer for modifying the soft properties, tackifiers, adhesion assistants, dispersants, plasticizers, anti-sagging agents, leveling agents, antifoaming agents, flame retardants You may mix | blend auxiliary additives, such as an agent and a coloring agent, as needed.
As a photosensitive light source, a light source suitable for the photosensitive resin to be used, such as a high-pressure mercury lamp, an excimer laser, a chemical lamp, a xenon lamp, or a metal halide lamp, is appropriately used.
As the exposure method, a scanning exposure method, a laser scanning method, or the like is used in addition to a projection exposure method in which a photomask image is formed on a photosensitive resin.

本発明の支持体3には、ポリエステル、ポリオレフィン類、またはポリ塩化ビニル系樹脂などの透明なシートが使用される。特に、柔軟性のあるシートが好まれる。 For the support 3 of the present invention, a transparent sheet such as polyester, polyolefin, or polyvinyl chloride resin is used. In particular, a flexible sheet is preferred.

以下、本発明の実施の形態を図面に基づいて説明する。
図1は、本発明の請求項2に係る製造の工程図の一例を示している。
まず、透明基板1の表面に金属層2を設け((1a)工程)、次に、透明な支持体3の表面に、感光により接着性または粘着性が増加する感光性樹脂層4を設け((1b)工程)、次に、金属層2と感光性樹脂層4が内側になるように合わせる((1c)工程)。この場合の感光性樹脂層4の表面はタック力が大きくないことが好ましい。次に、フォトマスク5などを使い、支持体3側から導電パターン部部分以外を露光する(1d)工程)。なお、金属層2上に感光性樹脂層4を積層後、支持体1をその上に積層してもかまわない。また、導電パターンに対応した露光も、支持体1に感光性樹脂層4を設けた(1b)工程後でも、金属層2上に感光性樹脂層4を積層後でもかまわない。次に、透明基板1から支持体3側を引きはがす。このとき、感光性樹脂層4中の接着力または粘着力の強い部分(導電パターン以外の部分)は金属層2との被着力が強くなっているので、透明基板1から金属層2を引きはがす((1e)工程)。
また、感光性樹脂層4に、接着性または粘着性が減少するものを使用する場合は、感光性樹脂層4の導電パターン部部分を露光する。この場合は、感光性樹脂層4中の導電パターン部分は、金属層2との被着力が弱くなるために、この部分の金属層2は引きはがされずに透明基板1に残る。
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows an example of a manufacturing process diagram according to claim 2 of the present invention.
First, the metal layer 2 is provided on the surface of the transparent substrate 1 (step (1a)), and then the photosensitive resin layer 4 whose adhesion or tackiness is increased by photosensitivity is provided on the surface of the transparent support 3 ( (Step 1b) Next, the metal layer 2 and the photosensitive resin layer 4 are aligned so as to be inside (step (1c)). In this case, it is preferable that the surface of the photosensitive resin layer 4 does not have a large tack force. Next, using a photomask 5 or the like, the portion other than the conductive pattern portion is exposed from the support 3 side (step 1d). In addition, after laminating the photosensitive resin layer 4 on the metal layer 2, the support 1 may be laminated thereon. The exposure corresponding to the conductive pattern may be performed after the step (1b) in which the photosensitive resin layer 4 is provided on the support 1 or after the photosensitive resin layer 4 is laminated on the metal layer 2. Next, the support 3 side is peeled from the transparent substrate 1. At this time, since the adhesion strength with the metal layer 2 is strong in the portion having a strong adhesive force or adhesive force in the photosensitive resin layer 4 (the portion other than the conductive pattern), the metal layer 2 is peeled off from the transparent substrate 1. ((1e) process).
Moreover, when using what the adhesiveness or adhesiveness reduces for the photosensitive resin layer 4, the conductive pattern part part of the photosensitive resin layer 4 is exposed. In this case, the conductive pattern portion in the photosensitive resin layer 4 has a weak adhesion to the metal layer 2, so that the metal layer 2 in this portion remains on the transparent substrate 1 without being peeled off.

図2は、本発明の請求項3に係る製造の工程図の一例を示している。
まず、透明基板1の表面に、感光により接着性または粘着性が減少する感光性樹脂層4を設け((2a)工程)、その上に金属層2を設ける((2b)工程)。この場合の次に、支持体3に粘着層6設けた粘着テープを粘着面と前記金属層2が内側になるように張り合わせる((2c)工程)。この場合、粘着層6の被着力は感光性樹脂層4のそれより小さいものを使用する。金属層2の上に粘着層6を設けた後に、支持体3を張り合わせてもかまわない。粘着層6の粘着剤はできるだけ非感光性のものを使用する。また、上記の感光性樹脂層4を黒色等に着色しておくと非視認が向上する。次に、フォトマスク5などを使い、透明基板1側から導電パターン部部分以外を露光する((2d)工程)。次に、透明基板1から支持体3側を引きはがす((2e)工程)。なお、導電パターンに対応した露光は、透明基板1に感光性樹脂層4を設けた(2a)工程後でも、感光性樹脂層4上に金属層2を積層した(2b)工程後でもかまわない。
また、感光性樹脂層4に感光により接着性または粘着性が増加ものを使用する場合であれば、感光性樹脂層4の導電パターン部部分を露光する方法を採用する。特に、感光性樹脂層4が透明基板1側に全て残る場合、感光性樹脂層4は透明のものを使用する。
FIG. 2 shows an example of a manufacturing process diagram according to claim 3 of the present invention.
First, the photosensitive resin layer 4 whose adhesiveness or tackiness is reduced by light exposure is provided on the surface of the transparent substrate 1 (step (2a)), and the metal layer 2 is provided thereon (step (2b)). Next, in this case, the adhesive tape provided with the adhesive layer 6 on the support 3 is pasted so that the adhesive surface and the metal layer 2 are inside (step (2c)). In this case, the adhesion force of the adhesive layer 6 is smaller than that of the photosensitive resin layer 4. After the adhesive layer 6 is provided on the metal layer 2, the support 3 may be bonded. The adhesive for the adhesive layer 6 is as non-photosensitive as possible. In addition, when the photosensitive resin layer 4 is colored black or the like, non-visibility is improved. Next, using a photomask 5 or the like, the conductive pattern portion other than the transparent substrate 1 side is exposed (step (2d)). Next, the support 3 side is peeled from the transparent substrate 1 (step (2e)). The exposure corresponding to the conductive pattern may be performed after the step (2a) in which the photosensitive resin layer 4 is provided on the transparent substrate 1 or after the step (2b) in which the metal layer 2 is laminated on the photosensitive resin layer 4. .
In addition, when a photosensitive resin layer 4 having increased adhesion or tackiness due to light exposure is used, a method of exposing the conductive pattern portion of the photosensitive resin layer 4 is employed. In particular, when the photosensitive resin layer 4 remains on the transparent substrate 1 side, the photosensitive resin layer 4 is transparent.

図3は、本発明の請求項4に係る製造の工程図の一例を示している。
透明基板1の表面に、感光により接着性または粘着性が減少する正の感光性樹脂層4aを設け((3a)工程)、その上に金属層2を設ける((3b)工程)。次に、透明な支持体3上に、感光により接着性または粘着性が増加する逆の感光性樹脂層4bを設け((3c)工程)、逆の感光性樹脂層4bと金属層2が内側になるように合わせる((3d)工程)。この場合、逆の感光性樹脂層4bの表面はタック力が大きくないことが好ましい。なお、金属層2の上に逆の感光性樹脂層4bを設けた後に、支持体3を張り合わせてもかまわない。また、正の感光性樹脂層4aを黒色等に着色しておくと非視認が向上する。次に、二枚のフォトマスク5を使い、透明基板1側と支持体3側から導電パターン部部分以外を露光する((3e)工程)。次に、透明基板1から支持体3側を引きはがす((3f)工程)。このとき、導電パターン部部分以外では、正の感光性樹脂層4a部分で接着力または粘着力が弱まり、逆の感光性樹脂層4b中では接着力または粘着力が強まるので、その部分の金属層2は支持体3側に転写する。
なお、金属層2は、逆の感光性樹脂層4b上に設けてもかまわないし、感光性樹脂層とマスクパターンと露光時期は、適宜組み合わせることができる。感光性樹脂層4が透明であれば、透明基板1側に全て残っていてもかまわない。
FIG. 3 shows an example of a manufacturing process diagram according to claim 4 of the present invention.
On the surface of the transparent substrate 1, a positive photosensitive resin layer 4a whose adhesion or tackiness is reduced by light exposure is provided (step (3a)), and a metal layer 2 is provided thereon (step (3b)). Next, the opposite photosensitive resin layer 4b whose adhesion or tackiness is increased by light exposure is provided on the transparent support 3 (step (3c)), and the opposite photosensitive resin layer 4b and the metal layer 2 are disposed on the inner side. (3d process). In this case, it is preferable that the surface of the reverse photosensitive resin layer 4b does not have a large tack force. In addition, after providing the reverse photosensitive resin layer 4b on the metal layer 2, the support body 3 may be bonded together. Further, when the positive photosensitive resin layer 4a is colored in black or the like, non-viewing is improved. Next, two photomasks 5 are used to expose portions other than the conductive pattern portion from the transparent substrate 1 side and the support 3 side (step (3e)). Next, the support 3 side is peeled off from the transparent substrate 1 ((3f) step). At this time, the adhesive force or adhesive strength is weakened in the positive photosensitive resin layer 4a except for the conductive pattern portion, and the adhesive strength or adhesive strength is increased in the opposite photosensitive resin layer 4b. 2 is transferred to the support 3 side.
The metal layer 2 may be provided on the opposite photosensitive resin layer 4b, and the photosensitive resin layer, the mask pattern, and the exposure time can be appropriately combined. If the photosensitive resin layer 4 is transparent, it may remain on the transparent substrate 1 side.

本発明の請求項2に係る製造の工程図の一例を示している。An example of a manufacturing process diagram according to claim 2 of the present invention is shown. 本発明の請求項3に係る製造の工程図の一例を示している。An example of a manufacturing process diagram according to claim 3 of the present invention is shown. 本発明の請求項4に係る製造の工程図の一例を示している。An example of a manufacturing process diagram according to claim 4 of the present invention is shown.

符号の説明Explanation of symbols

1…透明基板、2…金属層、3…支持体、4…感光性樹脂層、4a…正の感光性樹脂層、4b…逆の感光性樹脂層、5…フォトマスク、6…粘着層。   DESCRIPTION OF SYMBOLS 1 ... Transparent substrate, 2 ... Metal layer, 3 ... Support body, 4 ... Photosensitive resin layer, 4a ... Positive photosensitive resin layer, 4b ... Reverse photosensitive resin layer, 5 ... Photomask, 6 ... Adhesive layer.

Claims (5)

透明基板上に金属層を設けてそれを導電パターン状に加工する電磁波シールドフィルムの製造方法において、前記金属層の表面、または下地の少なくとも一方に、感光により接着性または粘着性が増加または減少する感光性樹脂層を設け、その接着性または粘着性の差により前記金属層中の前記導電パターン以外部分を前記透明基板から引きはがして削除することを特徴とする電磁波シールドフィルムの製造方法。
In the method for producing an electromagnetic wave shielding film, in which a metal layer is provided on a transparent substrate and processed into a conductive pattern, at least one of the surface of the metal layer or the base increases or decreases adhesiveness or tackiness due to light exposure. A method for producing an electromagnetic wave shielding film, comprising: providing a photosensitive resin layer; and removing a portion other than the conductive pattern in the metal layer from the transparent substrate due to a difference in adhesion or tackiness.
導電パターンを有する電磁波シールドフィルムの製造方法において、
透明基板上に金属層を積層する第1工程と、
前記金属層上に、感光により接着性または粘着性が増加または減少する感光性樹脂層とその上に支持体の構成で設けることと、その間にまたはその後に前記導電パターンに対応して露光する第2工程と、
前記支持体を前記透明基板から引きはがして、前記金属層の前記導電パターン以外部分が前記感光性樹脂層表面に転写することにより、前記金属層が前記導電パターン状に加工される第3工程と、
を有する電磁波シールドフィルムの製造方法。
In the method for producing an electromagnetic wave shielding film having a conductive pattern,
A first step of laminating a metal layer on a transparent substrate;
On the metal layer, a photosensitive resin layer whose adhesiveness or tackiness is increased or decreased by light exposure and a support structure on the photosensitive resin layer are provided, and exposure is performed in correspondence with or after the conductive pattern. Two steps,
A third step in which the metal layer is processed into the conductive pattern by peeling off the support from the transparent substrate and transferring a portion of the metal layer other than the conductive pattern to the surface of the photosensitive resin layer; ,
The manufacturing method of the electromagnetic wave shielding film which has this.
導電パターンを有する電磁波シールドフィルムの製造方法において、
透明基板上に感光により接着性または粘着性が増加または減少する感光性樹脂層を積層する第1工程と、
前記感光性樹脂層上に、金属層その上に粘着層とその上に支持体の構成で設けることと、その前に、その間にまたはその後に前記導電パターンに対応して露光する第2工程と、
前記支持体を前記透明基板から引きはがして、前記金属層の前記導電パターン以外部分が前記粘着層に転写することにより、前記金属層が前記導電パターン状に加工される第3工程と、
を有する電磁波シールドフィルムの製造方法。
In the method for producing an electromagnetic wave shielding film having a conductive pattern,
A first step of laminating a photosensitive resin layer whose adhesion or tackiness is increased or decreased by exposure on a transparent substrate;
A metal layer on the photosensitive resin layer, an adhesive layer on the metal layer, and a support on the metal layer; and a second step in which exposure is performed before, during or after the conductive pattern. ,
A third step in which the metal layer is processed into the conductive pattern by peeling the support from the transparent substrate and transferring a portion other than the conductive pattern of the metal layer to the adhesive layer;
The manufacturing method of the electromagnetic wave shielding film which has this.
導電パターンを有する電磁波シールドフィルムの製造方法において、
透明基板上に感光により接着性または粘着性が増加または減少する正の感光性樹脂層と、その上に金属層と、その上に感光により接着性または粘着性が減少または増加する逆の感光性樹脂層と、その上に支持体の構成で設けることと、その間にまたはその後に前記導電パターンに対応して前記正の感光性樹脂および前記逆の感光性樹脂面を露光する第1工程と、
前記支持体を前記透明基板から引きはがして、前記金属層の前記導電パターン部分が前記正の感光性樹脂層表面に転写するか、または前記金属層の前記導電パターン以外部分が前記逆の感光性樹脂層表面に転写することにより、前記金属層が前記導電パターン状に加工される第2工程と、
を有する電磁波シールドフィルムの製造方法。
In the method for producing an electromagnetic wave shielding film having a conductive pattern,
A positive photosensitive resin layer whose adhesion or tackiness is increased or decreased by light exposure on a transparent substrate, a metal layer thereon, and a reverse photosensitivity whose adhesion or tackiness is decreased or increased by light exposure. A first step of exposing the positive photosensitive resin and the opposite photosensitive resin surface corresponding to the conductive pattern during or after the resin layer;
The support is peeled off from the transparent substrate, and the conductive pattern portion of the metal layer is transferred to the surface of the positive photosensitive resin layer, or the portion other than the conductive pattern of the metal layer is the opposite photosensitive property. A second step in which the metal layer is processed into the conductive pattern by transferring to the resin layer surface;
The manufacturing method of the electromagnetic wave shielding film which has this.
導電パターンを有する電磁波シールドフィルムにあって、前記導電パターン部分の直下に感光により接着性または粘着性が減少しない感光性樹脂層を透明基板に設けることを特徴とする電磁波シールドフィルム。   An electromagnetic wave shielding film having a conductive pattern, wherein a photosensitive resin layer that does not decrease in adhesion or tackiness due to photosensitivity is provided on a transparent substrate immediately below the conductive pattern portion.
JP2004327657A 2004-11-11 2004-11-11 Method for manufacturing electromagnetic shielding film and film thereof Expired - Fee Related JP4657685B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004327657A JP4657685B2 (en) 2004-11-11 2004-11-11 Method for manufacturing electromagnetic shielding film and film thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004327657A JP4657685B2 (en) 2004-11-11 2004-11-11 Method for manufacturing electromagnetic shielding film and film thereof

Publications (2)

Publication Number Publication Date
JP2006140264A true JP2006140264A (en) 2006-06-01
JP4657685B2 JP4657685B2 (en) 2011-03-23

Family

ID=36620893

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004327657A Expired - Fee Related JP4657685B2 (en) 2004-11-11 2004-11-11 Method for manufacturing electromagnetic shielding film and film thereof

Country Status (1)

Country Link
JP (1) JP4657685B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008012916A (en) * 2006-06-08 2008-01-24 Hitachi Via Mechanics Ltd Composite sheet, machining method of composite sheet and laser machining device
WO2010021224A1 (en) * 2008-08-22 2010-02-25 日立化成工業株式会社 Photosensitive conductive film, method for forming conductive film, method for forming conductive pattern, and conductive film substrate
WO2011001961A1 (en) 2009-06-30 2011-01-06 Dic株式会社 Method for forming pattern for transparent conductive layer
EP2273354A1 (en) * 2009-07-08 2011-01-12 Chimei InnoLux Corporation Conductive plate and touch panel including the same

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS513101A (en) * 1974-06-25 1976-01-12 Sharp Kk DENPASHA HEIYOBAN
JPS63209195A (en) * 1987-02-26 1988-08-30 アルプス電気株式会社 Manufacture of flexible printed wiring board
JPH1165130A (en) * 1997-08-25 1999-03-05 Tomoegawa Paper Co Ltd Forming method of hardened resin layer in pattern
JPH11261289A (en) * 1998-03-11 1999-09-24 Lintec Corp Manufacture of radio wave shielding member
JP2005038966A (en) * 2003-07-17 2005-02-10 Bridgestone Corp Electromagnetic wave shielding light transmitting window material and its producing process

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS513101A (en) * 1974-06-25 1976-01-12 Sharp Kk DENPASHA HEIYOBAN
JPS63209195A (en) * 1987-02-26 1988-08-30 アルプス電気株式会社 Manufacture of flexible printed wiring board
JPH1165130A (en) * 1997-08-25 1999-03-05 Tomoegawa Paper Co Ltd Forming method of hardened resin layer in pattern
JPH11261289A (en) * 1998-03-11 1999-09-24 Lintec Corp Manufacture of radio wave shielding member
JP2005038966A (en) * 2003-07-17 2005-02-10 Bridgestone Corp Electromagnetic wave shielding light transmitting window material and its producing process

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008012916A (en) * 2006-06-08 2008-01-24 Hitachi Via Mechanics Ltd Composite sheet, machining method of composite sheet and laser machining device
KR101316977B1 (en) * 2008-08-22 2013-10-11 히타치가세이가부시끼가이샤 Photosensitive conductive film, method for forming conductive film, method for forming conductive pattern, and conductive film substrate
US8426741B2 (en) 2008-08-22 2013-04-23 Hitachi Chemical Company, Ltd. Photosensitive conductive film, method for forming conductive film, method for forming conductive pattern, and conductive film substrate
KR101855056B1 (en) * 2008-08-22 2018-05-04 히타치가세이가부시끼가이샤 Photosensitive conductive film, method for forming conductive film, method for forming conductive pattern, and conductive film substrate
EP2320433A1 (en) * 2008-08-22 2011-05-11 Hitachi Chemical Company, Ltd. Photosensitive conductive film, method for forming conductive film, method for forming conductive pattern, and conductive film substrate
EP2357521A1 (en) * 2008-08-22 2011-08-17 Hitachi Chemical Co., Ltd. Photosensitive conductive film, method for forming conductive film, method for forming conductive pattern, and conductive film substrate
EP2320433A4 (en) * 2008-08-22 2011-08-17 Hitachi Chemical Co Ltd Photosensitive conductive film, method for forming conductive film, method for forming conductive pattern, and conductive film substrate
US8171628B2 (en) 2008-08-22 2012-05-08 Hitachi Chemical Company, Ltd. Photosensitive conductive film, method for forming conductive film, method for forming conductive pattern, and conductive film substrate
KR101774885B1 (en) * 2008-08-22 2017-09-05 히타치가세이가부시끼가이샤 Photosensitive conductive film, method for forming conductive film, method for forming conductive pattern, and conductive film substrate
WO2010021224A1 (en) * 2008-08-22 2010-02-25 日立化成工業株式会社 Photosensitive conductive film, method for forming conductive film, method for forming conductive pattern, and conductive film substrate
US9161442B2 (en) 2008-08-22 2015-10-13 Hitachi Chemical Company, Ltd. Photosensitive conductive film, method for forming conductive film, method for forming conductive pattern, and conductive film substrate
US8674233B2 (en) 2008-08-22 2014-03-18 Hitachi Chemical Company, Ltd. Photosensitive conductive film, method for forming conductive film, method for forming conductive pattern, and conductive film substrate
US8647463B2 (en) 2009-06-30 2014-02-11 Dic Corporation Method for forming transparent conductive layer pattern
WO2011001961A1 (en) 2009-06-30 2011-01-06 Dic株式会社 Method for forming pattern for transparent conductive layer
EP2273354A1 (en) * 2009-07-08 2011-01-12 Chimei InnoLux Corporation Conductive plate and touch panel including the same

Also Published As

Publication number Publication date
JP4657685B2 (en) 2011-03-23

Similar Documents

Publication Publication Date Title
TWI287802B (en) Thin sheet for shielding electromagnetic wave
EP2247170B1 (en) Method for electroconductive pattern formation
JP3998975B2 (en) Electromagnetic wave shielding sheet
JP2011059771A (en) Mesh-shaped conductive pattern and base material with conductor layer pattern and touch panel member
JP2011059772A (en) Net-like conductive pattern, base material with conductive layer and touch panel member
WO2013141275A1 (en) Transparent conductive laminate and touch panel
KR20140010131A (en) Photosensitive resin composition, photoresist film using same, resist pattern forming method, and conductor pattern forming method
JP4535953B2 (en) Photosensitive resin laminate
JP4657685B2 (en) Method for manufacturing electromagnetic shielding film and film thereof
JP2003307845A (en) Photosensitive film for forming circuit and method for manufacturing printed-wiring board
JP2000323891A (en) Electromagnetic wave shielding adhesive film, display using the same, its manufacture, and manufacture of electromagnetic wave shielding component
JPH02230149A (en) Image forming method
JP2002335095A (en) Electromagnetic wave shielding adhesive film, electromagnetic wave shield component, and manufacturing method for display
JP4498058B2 (en) Photosensitive resin laminate
JP2006317542A (en) Photosensitive film, resist pattern forming method using the same and method for manufacturing printed wiring board
JP2006319247A (en) Electromagnetic wave shield film, shield filter, and manufacturing method thereof
JP5485713B2 (en) Photocrosslinkable resin composition
JP2004165237A (en) Manufacturing method of front filter for plasma display panel
JP2004039981A (en) Emi shield film and manufacturing method therefor
JP2007067056A (en) Method of manufacturing wiring board
JP2007311701A (en) Electromagnetic wave shield film
JP2004072010A (en) Electromagnetic wave shield material and its manufacturing method
JPH04371957A (en) Photoresist film
JP2003034885A (en) Method for manufacturing mesh of metal foil
JP2007114234A (en) Photosensitive resin composition and photosensitive dry film resist

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20061219

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20090519

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20090528

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20090721

A711 Notification of change in applicant

Free format text: JAPANESE INTERMEDIATE CODE: A712

Effective date: 20091117

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20100121

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20100316

RD04 Notification of resignation of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7424

Effective date: 20100618

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20100914

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20101022

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20101221

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20101222

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140107

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

LAPS Cancellation because of no payment of annual fees