JP2005129019A - Ic card - Google Patents

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JP2005129019A
JP2005129019A JP2004257029A JP2004257029A JP2005129019A JP 2005129019 A JP2005129019 A JP 2005129019A JP 2004257029 A JP2004257029 A JP 2004257029A JP 2004257029 A JP2004257029 A JP 2004257029A JP 2005129019 A JP2005129019 A JP 2005129019A
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mica
ic card
film
capacitor
ic chip
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Shinichi Kuroda
Kazuaki Suzuki
和明 鈴木
信一 黒田
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Sony Chem Corp
ソニーケミカル株式会社
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Abstract

<P>PROBLEM TO BE SOLVED: To reduce the thickness of an IC card, and to reduce the manufacturing cost, and to stabilize the resonance frequency. <P>SOLUTION: This IC card 10A is provided with a mica film 1 and a mica capacitor 5, constituted of electrodes 6a and 6b formed on the both faces, and the mica film 1 is used as the mounting substrate of a mica coil 2 and an IC chip 3. The IC chip 3 is mounted through anisotropic conductive adhesive on the mica film in a face-down type. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、RFID(Radio Frequency Identification)等の非接触型ICカードに関する。 The present invention relates to a non-contact type IC card such as RFID (Radio Frequency Identification).

質問器(リーダ/ライタ)が発した電磁波により、非接触で応答器(非接触型ICカード)のアンテナコイルに誘導電圧を発生させ、信号の送受信を行うデータキャリアシステムが普及している。 The electromagnetic waves interrogator (reader / writer) is emitted, so that an induced voltage is generated in the antenna coil of the responder (non-contact type IC card) in a non-contact data carrier system for transmitting and receiving signals has become widespread.

この非接触型ICカードの基本的な回路要素は、図9に示すように、アンテナコイル及びコンデンサーからなる共振回路とICチップとからなるので、その具体的構造は、基板上にアンテナコイル、コンデンサー及びICチップを配設したものとなっている。 The basic circuit elements of the contactless IC card, as shown in FIG. 9, since composed of a resonance circuit and an IC chip comprising an antenna coil and a capacitor, its specific structure, the antenna coil on a substrate, the capacitor and and it is obtained by arranging the IC chip.

このアンテナコイルとしては、従前は、金属の細線を同一面上でリング状に巻回したものが使用されていたが、近年は、アンテナ特性や機械的強度の向上、組立工程数の削減の点から、絶縁基板の片面に積層されている銅箔等の導電層をリング状にエッチングしたものが多く使用されている。 As the antenna coil, previously is that a thin line of metal wound in a ring shape on the same plane have been used in recent years, improvement of antenna characteristics and mechanical strength, in terms of the number of assembling steps reduce from which a conductive layer such as copper foil is laminated on one surface of an insulating substrate used often those etched in a ring shape.

また、アンテナコイルを形成する積層板の絶縁基板、あるいはコンデンサーの誘電体としては、一般にポリイミドフィルムが使用されている。 Further, as the dielectric of the insulating substrate of the laminated plate or capacitor, for forming an antenna coil, a polyimide film is used in general.

しかしながら、ポリイミドは吸水率が大きく、その誘電率は吸湿により変化するため、ポリイミドフィルムを誘電体とするコンデンサーは、吸湿により静電容量が変化し、ICカードの共振周波数がずれるという問題がある。 However, polyimide has a large water absorption, since the dielectric constant is changed by moisture absorption, a condenser for the polyimide film and the dielectric, moisture capacitance is changed by, there is a problem that the resonance frequency of the IC card shifts.

特に、ポリイミドフィルムと銅箔を接着剤により貼着した積層板からコンデンサーを形成した場合には、ポリイミドフィルムに加えて接着剤も誘電率の変動の原因になるので、ICカードの共振周波数がいっそう不安定になる。 Particularly, in the case of forming a capacitor of a laminated plate bonded with an adhesive polyimide film and copper foil, the adhesive in addition to the polyimide film becomes a cause of variations in the dielectric constant, the more the resonance frequency of the IC card become unstable.

本発明は以上のような従来技術の問題点を解決しようとするものであり、共振周波数が安定化し、アンテナ特性が向上したICカードを安価に製造できるようにすることを目的としている。 The present invention is intended to solve the above problems of the prior art to stabilize the resonance frequency, it is an object to ensure that the IC card antenna characteristics are improved can be manufactured at low cost.

本発明者らは、コンデンサーとして、マイカフィルムを誘電体とするマイカコンデンサーを使用すると、マイカフィルムは吸水率が著しく低いためにICカードの共振周波数が安定すること、また、マイカコンデンサーの誘電体となるマイカフィルムを、アンテナコイルやICチップを形成あるいは実装する基板としても使用すると、ICカードを薄型化でき、また低コストに製造できることを見出し本発明を完成させるに至った。 The present inventors, as a condenser, the use of mica capacitor to a mica film as a dielectric, mica film is that the resonance frequency of the IC card is stabilized due to the very low water absorption, also a dielectric of the mica capacitor the composed mica film and also used as a substrate for forming or mounting an antenna coil and IC chip, an IC card can be thinned, and have thus completed the present invention can be produced at low cost.

即ち、本発明は、マイカフィルムとその両面に形成された電極からなるマイカコンデンサー、ならびに前記マイカフィルムを基板として設けられているアンテナコイル及びICチップを有することを特徴とするICカードを提供する。 That is, the present invention provides an IC card and having an antenna coil and IC chip provided mica capacitor consists electrodes formed on both surfaces thereof with the mica film, and the mica film as the substrate.

本発明のICカードによれば、マイカコンデンサーを使用するので共振周波数を安定させることができ、また、マイカコンデンサーの誘電体となるマイカフィルムをアンテナコイルやICチップを実装する基板としても使用するので、ICカードを薄型化し、製造コストも低下させることができる。 According to the IC card of the present invention, because it uses mica capacitor can be stabilized resonance frequency, also, since also using the mica film as a dielectric of the mica capacitor as substrate for mounting the antenna coil and IC chip the IC card is thin, the manufacturing cost can be reduced.

以下、本発明を図面に基づいて詳細に説明する。 It will be described in detail the present invention based on the drawings. なお、各図中、同一符号は同一又は同等の構成要素を表している。 In the drawings, the same reference numerals represent the same or equivalent components.

図5は、本発明の一態様のICカード10Bの平面図(同図(a))及び断面図(同図(b)、(c))である。 Figure 5 is a plan view of the IC card 10B in one embodiment of the present invention (FIG. (A)) and a cross-sectional view (FIG. (B), (c)) is. また、図6は、このICカード10Bの、ICチップ3の実装前の上面図(同図(a))及び下面図(同図(b))である。 Also, FIG. 6, the IC card 10B, a top view of a prior implementation of IC chip 3 (FIG. (A)) and bottom view (FIG. (B)).

このICカード10Bは、透明なマイカフィルム1の片面にアンテナコイル2及びICチップ3を有している。 The IC card 10B has an antenna coil 2 and the IC chip 3 on one side of a transparent mica film 1. また、マイカフィルム1の両面に電極6a、6bを有し、この電極6a、6bとこの電極6a、6bで挟まれたマイカフィルム1とからマイカコンデンサー5が構成されている。 Further, both sides electrodes 6a of the mica film 1, has a 6b, the electrode 6a, 6b and the electrode 6a, the mica capacitor 5 sandwiched by mica film 1 Metropolitan in 6b are constituted. なお、図5(a)において、マイカコンデンサー5内のドットで塗りつぶしした部分は、マイカフィルム1の下面に形成されている電極6aを表している。 Incidentally, in FIG. 5 (a), the filled portion with dots mica capacitor 5 represents the electrode 6a which are formed on the lower surface of the mica film 1.

このICカード10Bにおいて、アンテナコイル2は、銀ペースト等の導電ペーストを用いてマイカフィルム1にコイルパターンを印刷したものでもよく、あるいはマイカフィルム1とその表面に形成された銅等の導電層からなる積層板の当該導電層をエッチングすることにより形成したものでもよい。 In this IC card 10B, the antenna coil 2, from using a conductive paste such as silver paste may be obtained by printing a coil pattern on the mica film 1, or mica film 1 and the conductive layer of copper or the like formed on the surface thereof it may be one formed by etching the conductive layer of the laminate becomes.

ICチップ3は、異方導電性接着剤4を用いてフェイスダウン式にマイカフィルム1上に実装されている。 IC chip 3 is mounted on the mica film 1 in a face-down using a 4 anisotropic conductive adhesive. この場合、ICチップ3はその二つの端子3a、3bでアンテナコイル2を跨ぐように実装されており、一方の端子3aがアンテナコイル2の内側端子2aと接続し、他方の端子3bがアンテナコイル2の外側端子2bと接続している。 In this case, IC chip 3 is that two terminals 3a, are mounted so as to straddle the antenna coil 2 in 3b, one terminal 3a is connected to the inner terminal 2a of the antenna coil 2 and the other terminal 3b antenna coil It is connected to the second outer terminal 2b.

マイカコンデンサー5は、マイカフィルム1とその両面に形成された電極6a、6bから構成されている。 Mica capacitor 5, mica film 1 and electrodes 6a formed on both sides thereof, and a 6b. この電極6a、6bのうち、マイカフィルム1の下面に形成されている電極6aにはコンデンサー端子5aが形成されており、そのコンデンサー端子5aがスルーホール8aを介してアンテナコイルの内側端子2aaと接続している。 The electrodes 6a, among 6b, the electrode 6a formed on the lower surface of the mica film 1 is the condenser terminal 5a is formed, connected to the inner terminal 2aa of the antenna coil that capacitor terminal 5a via the through hole 8a doing. また、マイカフィルム1の上面に形成されたマイカコンデンサー5の電極6bにはコンデンサー端子5bが形成されており、このコンデンサー端子5bがスルーホール8bを介してマイカフィルム1の下面に形成されている配線7と接続し、さらにその配線7がスルーホール8cでアンテナコイル2の外側端子2bbと接続している。 Further, the electrode 6b of the mica capacitor 5 formed on the upper surface of the mica film 1 is formed capacitor terminal 5b is, wiring the capacitor terminal 5b is formed on the lower surface of the mica film 1 through the through hole 8b connect and 7 are further connected the wiring 7 is an outer terminal 2bb of the antenna coil 2 in the through-hole 8c.

この図5のICカード10Bは、例えば、次のようにして製造することができる。 IC card 10B in FIG. 5, for example, can be manufactured as follows.

まず、図6(a)に示すように、マイカフィルム1にスルーホール8a、8b、8c用の孔をあけ、次に銀ペースト等の導電ペーストを用いて、マイカフィルム1の片面にマイカコンデンサー5の上面の電極6bとアンテナコイル2とを印刷する。 First, as shown in FIG. 6 (a), the through-holes 8a to the mica film 1, 8b, a hole for 8c, and then using a conductive paste such as silver paste, mica capacitor 5 on one side of the mica film 1 printing of the upper surface of the electrode 6b and the antenna coil 2. また、マイカフィルム1の他面には、図6(b)に示すように、マイカコンデンサー5の下面の電極6aと配線7を印刷する。 Further, the other surface of the mica film 1, as shown in FIG. 6 (b), to print the underside of the electrode 6a and the wiring 7 of the mica capacitor 5. この導電ペーストの印刷により、スルーホール8a、8b、8c用の孔に導電ペーストが充填され、スルーホール8a、8b、8cが導通し、アンテナコイル2とマイカコンデンサー5との接続も完了したことになる。 By printing the conductive paste, through-holes 8a, 8b, conductive paste in the hole for 8c is filled, the through holes 8a, 8b, 8c conducts, that completes also connected between the antenna coil 2 and the mica capacitor 5 Become.

次に、ICチップ3をマイカフィルム1の上面に異方導電性接着剤4を用いてフェイスダウン式に実装する。 Then, mounted on a face-down with an anisotropic conductive adhesive 4 to the IC chip 3 on the upper surface of the mica film 1. なお、ここで使用する異方導電性接着剤4としては、公知のものを使用することができ、その形態もフィルム状、ペースト状等のいずれでもよい。 Here, as a 4 anisotropic conductive adhesive used may be a known, the form also filmy, may be any of a paste or the like.

こうして得られたICカード10Bは、コンデンサー5の誘電体としてマイカフィルム1が使用されているので、吸湿による共振周波数のずれがなく、アンテナ特性が向上したものとなる。 IC card 10B thus obtained, since the mica film 1 is used as the dielectric of the capacitor 5, without deviation of the resonance frequency due to moisture absorption, and that the antenna characteristics are improved. また、このマイカフィルム1がアンテナコイル2やICチップ3の実装基板にもなっているので、コンデンサー5の誘電体と別個に実装基板が使用される従来のICチップに比してICチップの薄型化を図ることができる。 Furthermore, since the mica film 1 is made also to the mounting substrate of the antenna coil 2 and the IC chip 3, a thin IC chip compared with the conventional IC chip dielectric and separately mounting substrate of the capacitor 5 is used it is possible to achieve the reduction. さらに、アンテナコイル2やコンデンサー5の電極6a、6bだけでなく、それらの接続に必要な配線7やスルーホール8a、8b、8cが導電ペーストの印刷により同時に形成でき、それらの接続作業も不要となるので、製造工程を簡略化できICチップを低コストで製造することが可能となる。 Additionally, the antenna coil 2 and the capacitor 5 electrodes 6a, 6b as well, those of the wiring 7 and through-holes 8a required for connection, 8b, 8c at the same time be formed by printing conductive paste, also unnecessary their connection work since, it is possible to simplify able IC chip manufacturing process for manufacturing at low cost.

図1は、本発明の他の態様のICカード10Aの平面図(同図(a))及び断面図(同図(b)、(c))である。 Figure 1 is a plan view of the IC card 10A of another embodiment of the present invention (FIG. (A)) and a cross-sectional view (FIG. (B), (c)) is. なお、図1(a)においても、マイカコンデンサー5内のドットで塗りつぶした部分は、マイカフィルム1の下面に形成されている電極6aを表している。 Also in FIG. 1 (a), the portion filled with dots mica capacitor 5 represents the electrode 6a which are formed on the lower surface of the mica film 1. また、図2は、このICカード10Aの、ICチップ3の実装前の上面図(同図(a))及び下面図(同図(b))である。 Also, FIG. 2, the IC card 10A, a top view of a prior implementation of IC chip 3 (FIG. (A)) and bottom view (FIG. (B)).

このICカード10Aは、上述のICカード10Bと略同様に製造されるが、マイカフィルム1の下面の電極6aからは、アンテナコイル2の外側端子2bとスルーホール8cを介して接続するコンデンサー端子5bの他に、ICチップ3の端子3bと配線7及びスルーホール8bを介して接続するコンデンサー端子5cも設けられている。 The IC card 10A is manufactured in the same manner substantially the IC card 10B described above, from the lower surface of the electrode 6a of the mica film 1, a capacitor terminal 5b connected via the outer terminal 2b and the through-hole 8c of the antenna coil 2 Besides, also it provided a capacitor terminal 5c connected through the terminal 3b and the wiring 7 and the through-hole 8b of IC chip 3. 一方、マイカフィルム1の上面の電極6bからは、ICチップ3の他方の端子3aと接続するコンデンサー端子5aが形成されており、このコンデンサー端子5aはアンテナコイル2の内側端子2aと連続している。 On the other hand, from the upper surface of the electrode 6b of the mica film 1, a capacitor terminal 5a which is connected to the other terminal 3a of the IC chip 3 is formed, the capacitor terminal 5a is continuous with the inner terminal 2a of the antenna coil 2 . したがって、このICカード10Aによれば、ICチップ3の二つの端子3a、3bをそれぞれアンテナコイル2の内側端子2a、外側端子2bと接続するにあたり、ICチップ3の二つの端子3a、3bでアンテナコイル2を跨ぐことが不要となり、アンテナコイル2の全巻幅をICチップ3の二つの端子3a、3bの間に納めることが不要となっている。 Therefore, the antenna according to this IC card 10A, two terminals 3a of the IC chip 3, the inner terminal 2a and 3b, respectively antenna coil 2, when connected to the outer terminal 2b, two terminals 3a of the IC chip 3 and 3b it is not necessary to cross the coils 2, two terminals 3a of the IC chip 3 a whole set width of the antenna coil 2, be accommodated between 3b has become unnecessary. よって、このICカード10Aによれば、アンテナコイル2の設計の自由度を高めることができる。 Therefore, according to this IC card 10A, it is possible to increase the freedom of design the antenna coil 2.

本発明のICカードは、必要に応じて樹脂封止したり、ICカードの上面あるいは下面に任意のシート材を積層することができる。 IC card of the present invention may be laminated or sealed with resin as required, any of the sheet material on the upper surface or lower surface of the IC card. 例えば、図3は、図1に示したICカード10Aを、エポキシ樹脂等の熱硬化性樹脂、ポリエステル等のホットメルト樹脂等からなる封止樹脂11で封止し、その一方の面にアクリル系樹脂等の粘着剤12を介してポリエステルフィルム等の外層フィルム13を積層し、他方の面に粘着剤14を介して剥離紙15を積層することにより、ビデオフィルムその他種々の物品に貼着するID機能付きのラベル10Xとして構成したものである。 For example, FIG. 3, the IC card 10A shown in FIG. 1, a thermosetting resin such as epoxy resin, sealed with a sealing resin 11 made of a hot-melt resin such as polyester, acrylic on one surface thereof with an adhesive 12 such as resin is laminated to the outer layer film 13 such as polyester film, by laminating a release paper 15 via an adhesive 14 on the other surface, is adhered to the video film other various articles ID are those configured as a function of the label 10X. 即ち、ラベル10Xを物品に貼り付ける時に剥離紙15は剥がされ、粘着剤14が物品への貼付面となり、一方、外層フィルム13が筆記性を有するラベル面となる。 That is, the release paper 15 when applying labels 10X the article is peeled, the adhesive 14 becomes a pasting surface to the article, while the outer layer film 13 becomes a label surface having a writing property.

このようなICカード10Aを用いたラベル10Xの製造方法としては、図4に示すように、ICカード10Aの一方の面に外層フィルム13を粘着剤(図示せず)で貼着し、反対側に封止樹脂11を塗布し、その上に粘着剤付きの剥離紙15をローラー16を用いて被せると共に、加熱加圧する。 As a method for producing such an IC card 10A label 10X which uses, as shown in FIG. 4, the outer layer film 13 adhered by adhesive (not shown) on one surface of the IC card 10A, opposite the sealing resin 11 is applied, the release paper 15 of the pressure-sensitive adhesive thereon with covered using a roller 16, heated and pressurized. この場合、外層フィルム13と剥離紙15との間隔を所定のギャップ幅dに調整する。 In this case, to adjust the distance between the outer layer film 13 and the release paper 15 to a predetermined gap width d. これにより図3に示したラベル10Xを得ることができる。 This makes it possible to obtain a label 10X shown in Fig.

図7は、本発明の他の態様のICカード10Cをラベル10Yの形態にしたものの平面図(同図(a))及び断面図(同図(b)、(c))である。 7, although the IC card 10C of another aspect of the present invention were in the form of a label 10Y plan view (FIG. (A)) and a cross-sectional view (FIG. (B), (c)) is. また、図8は、このICカード10Cの、ICチップ3の実装前の上面図(同図(a))及び下面図(同図(b))である。 Further, FIG. 8, the IC card 10C, a top view before mounting the IC chip 3 (FIG. (A)) and bottom view (FIG. (B)).

このICカード10Cは、上述のICカード10Aが矩形に巻回したアンテナコイル2を有しているのに対し、円形に巻回したアンテナコイル2を有している以外は、ICカード10Aと略同様の構成を有している。 The IC card 10C, the contrast has an antenna coil 2 which IC card 10A described above wound in a rectangular, except that it has an antenna coil 2 wound around the circular, the IC card 10A is substantially It has the same configuration. 即ち、マイカフィルム1の下面の電極6aからは、アンテナコイル2の外側端子2bとスルーホール8cを介して接続するコンデンサー端子5bの他に、ICチップ3の端子3bと配線7及びスルーホール8bを介して接続するコンデンサー端子5cが設けられている。 That is, from the lower surface of the electrode 6a of the mica film 1, in addition to the capacitor terminal 5b connected via the outer terminal 2b and the through-hole 8c of the antenna coil 2, the terminal 3b of the IC chip 3 wiring 7 and the through hole 8b condenser terminal 5c connected through is provided. 一方、マイカフィルム1の上面の電極6bからは、ICチップ3の他方の端子3aと接続するコンデンサー端子5aが形成されており、このコンデンサー端子5aはアンテナコイル2の内側端子2aと連続している。 On the other hand, from the upper surface of the electrode 6b of the mica film 1, a capacitor terminal 5a which is connected to the other terminal 3a of the IC chip 3 is formed, the capacitor terminal 5a is continuous with the inner terminal 2a of the antenna coil 2 . したがって、このICカード10Cにおいても、ICチップ3の二つの端子3a、3bでアンテナコイル2を跨ぐことが不要となり、アンテナコイル2の全巻幅をICチップ3の二つの端子3a、3bの間に納めることが不要となり、アンテナコイル2の設計の自由度を高めることができる。 Therefore, also in this IC card 10C, two terminals 3a of the IC chip 3, it is unnecessary to straddle the antenna coil 2 in 3b, the whole volume width of the antenna coil 2 two terminals 3a of the IC chip 3, during 3b it is not necessary to pay, it is possible to increase the freedom of design the antenna coil 2.

なお、このICカード10Cのマイカフィルム1上には、ICチップ3の端子が載るランド9が形成されている。 Incidentally, on the mica film 1 of this IC card 10C, the land 9 pin rests of the IC chip 3 is formed. このランド9は、アンテナコイル2やコンデンサー5と直接的には接続しないが、アース等の他の配線端子として使用することができ、また、ICチップ3の実装時にICチップが不要に傾かないようにするための足として作用する。 This land 9 is in directly with the antenna coil 2 and the condenser 5 is not connected, can be used as another wiring terminal such as ground, also, so that the IC chip from tilting unnecessarily when mounting the IC chip 3 It acts as a foot of order to.

本発明のICカードは、上述の例に限らず、種々の態様をとることができる。 IC card of the present invention is not limited to the examples described above, it can take various forms. マイカコンデンサーの誘電体となるマイカフィルムが、アンテナコイルやICチップの実装基板としても使用されている限り、マイカコンデンサー5の電極6a、6bやアンテナコイル2について、それらの形状や端子形状、形成位置等は適宜定めることができる。 Mica film as a dielectric of the mica capacitor is as long as is also used as a mounting substrate for the antenna coil and IC chip, the electrode 6a of the mica capacitor 5 for 6b and antenna coil 2, their shape and terminal shape, forming position etc. can be appropriately determined.

本発明のICカードによれば、マイカコンデンサーを使用するので共振周波数を安定させることができ、また、マイカコンデンサーの誘電体となるマイカフィルムをアンテナコイルやICチップを実装する基板としても使用するので、ICカードを薄型化し、製造コストも低下させることができる。 According to the IC card of the present invention, because it uses mica capacitor can be stabilized resonance frequency, also, since also using the mica film as a dielectric of the mica capacitor as substrate for mounting the antenna coil and IC chip the IC card is thin, the manufacturing cost can be reduced.

本発明のICカードの平面図(同図(a))及び断面図(同図(b)、(c))である。 Plan view of the IC card of the present invention (FIG. (A)) and a cross-sectional view (FIG. (B), (c)) is. ICチップの実装前のICカードの上面図(同図(a))及び下面図(同図(b))である。 An IC chip IC card top view of a prior implementation (Fig (a)) and bottom view (FIG. (B)). 本発明のICカードを用いたラベルの断面図である。 It is a cross-sectional view of the label using the IC card of the present invention. 本発明のICカードを用いてラベルを製造する方法の説明図である。 It is an explanatory diagram of a method for producing a label by using the IC card of the present invention. 本発明のICカードの平面図(同図(a))及び断面図(同図(b)、(c))である。 Plan view of the IC card of the present invention (FIG. (A)) and a cross-sectional view (FIG. (B), (c)) is. ICチップの実装前のICカードの上面図(同図(a))及び下面図(同図(b))である。 An IC chip IC card top view of a prior implementation (Fig (a)) and bottom view (FIG. (B)). 本発明のICカードを用いたラベルの平面図(同図(a))及び断面図(同図(b)、(c))である。 Plan view of a label using the IC card of the present invention (FIG. (A)) and a cross-sectional view (FIG. (B), (c)) is. ICチップの実装前のICカードの上面図(同図(a))及び下面図(同図(b))である。 An IC chip IC card top view of a prior implementation (Fig (a)) and bottom view (FIG. (B)). ICカードにおける基本的な回路要素の説明図である。 It is an explanatory diagram of a basic circuit elements in the IC card.

符号の説明 DESCRIPTION OF SYMBOLS

1 マイカフィルム2 アンテナコイル2a 内側端子2b 外側端子3 ICチップ3a、3b ICチップの端子4 異方導電性接着剤5 マイカコンデンサー5a、5b、5c コンデンサー端子6a、6b マイカコンデンサーの電極7 配線8a、8b、8c スルーホール10A、10B、10C ICカード10X、10Y ICカードからなるラベル 1 mica film 2 antenna coil 2a inside terminal 2b outside terminal 3 IC chip 3a, 3b IC chip terminal 4 the anisotropic conductive adhesive 5 mica capacitor 5a, 5b, 5c condenser terminals 6a, 6b mica capacitor electrode 7 wires 8a, 8b, 8c through holes 10A, 10B, 10C IC card 10X, labels consisting of 10Y IC card

Claims (2)

  1. マイカフィルムとその両面に形成された電極からなるマイカコンデンサー、ならびに前記マイカフィルムを基板として設けられているアンテナコイル及びICチップを有し、ICチップが異方性導電接着剤を介してフェイスダウン式にマイカフィルム上に実装されていることを特徴とするICカード。 Mica film and the mica capacitor made from the both surfaces formed electrode, and has an in which the antenna coil and IC chip provided the mica film as the substrate, a face-down IC chip via the anisotropic conductive adhesive IC card characterized in that it is mounted on the mica film.
  2. アンテナコイルとマイカコンデンサーの一方の電極が、マイカフィルムへの導電ペーストの印刷により同時に形成されたものである請求項1記載のICカード。 Antenna coil and one electrode of the mica capacitor is, IC card according to claim 1, wherein one formed simultaneously by printing a conductive paste to the mica film.
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