JP2001338951A - Film carrier and its manufacturing method - Google Patents

Film carrier and its manufacturing method

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Publication number
JP2001338951A
JP2001338951A JP2000160436A JP2000160436A JP2001338951A JP 2001338951 A JP2001338951 A JP 2001338951A JP 2000160436 A JP2000160436 A JP 2000160436A JP 2000160436 A JP2000160436 A JP 2000160436A JP 2001338951 A JP2001338951 A JP 2001338951A
Authority
JP
Japan
Prior art keywords
conductor layer
film
film carrier
plating
conductor
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.)
Pending
Application number
JP2000160436A
Other languages
Japanese (ja)
Inventor
Kokuko Naoi
克巧 直井
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.)
Toppan Inc
Original Assignee
Toppan Printing Co Ltd
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 Toppan Printing Co Ltd filed Critical Toppan Printing Co Ltd
Priority to JP2000160436A priority Critical patent/JP2001338951A/en
Publication of JP2001338951A publication Critical patent/JP2001338951A/en
Pending legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To provide a film carrier for a boll grip array and its manufacturing method superior in physical strength for folding and stress of the film carrier and having the structure of electrically high connection reliability. SOLUTION: A copper film is laminated on both the faces of an insulation film 1 to form conductor layers 2, 3, and an opening part 4 is formed on the conductor layer 2. Next, the insulation film 1 is processed by laser to form an opening part 5. Next, a thin film conductor layer 6 is formed by electroless copper plating on the wall face of the opening part 5 and the conductor layers 2, 3, electrolytic copper plating is performed on the conductor layers 2, 3 and the thin film conductor layer 6 of the opening part 5 by using a PR electrolytic method, and a conductor layer 7 and a via hole 8 are formed. Next, the conductor layers 2, 3, the thin film conductor layer 6 and the conductor layer 7 are processed by patterning, and wiring layers 2a, 7a and lands for grating-like outside connection 3a, 7a are formed to obtain the film carrier 10.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、半導体装置に用い
られているボールグリッドアレイ型のフィルムキャリア
に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ball grid array type film carrier used for a semiconductor device.

【0002】[0002]

【従来の技術】従来、ボールグリッドアレイ型のフィル
ムキャリアでは、両面の導体層の導通をとるための電気
的導通路の形成にはプリント配線基板と同様な手法が採
られてきた。図3に従来のボールグリッドアレイ型のフ
ィルムキャリアの一例を示す。これは、絶縁フィルム2
1の両面に導体層が形成された両面導体層付きフィルム
キャリアの絶縁フィルム21の所定位置に開口部を形成
し、無電解めっきによって全面に薄膜導体層を形成し、
さらに直流電解法による電解めっきにて導体層をを形成
し、同時にバイアホール24も形成する。最後に、両面
の導体層をパターニング処理して配線層22、25及び
外部接続ランド23を形成して、バイアホールを有する
フィルムキャリアを作製している。
2. Description of the Related Art Conventionally, in a ball grid array type film carrier, a method similar to that of a printed wiring board has been adopted for forming an electric conduction path for establishing conduction between conductor layers on both surfaces. FIG. 3 shows an example of a conventional ball grid array type film carrier. This is insulating film 2
1, an opening is formed at a predetermined position of the insulating film 21 of the film carrier with a double-sided conductor layer having conductor layers formed on both sides, and a thin-film conductor layer is formed on the entire surface by electroless plating;
Further, a conductor layer is formed by electrolytic plating by DC electrolysis, and a via hole 24 is also formed at the same time. Finally, the wiring layers 22, 25 and the external connection lands 23 are formed by patterning the conductor layers on both sides, thereby producing a film carrier having via holes.

【0003】[0003]

【発明が解決しようとする課題】従来のボールグリッド
アレイ型のフィルムキャリアでは、薄型化が可能ではあ
ったが、可撓性があるために、実装までの輸送、取り扱
い等の際に、バイアホール部にクラックが入ってしまう
恐れがあった。特にボールグリッドアレイ用の場合に
は、外部接続用ランドが格子状に形成されており、面で
実装が行われるために、実装時や実装後に応力が生じや
すく、バイアホール部にクラックが入ってしまう恐れが
あった。
In a conventional ball grid array type film carrier, it was possible to reduce the thickness. However, due to the flexibility, via holes were required during transportation and handling until mounting. There was a risk of cracks in the part. In particular, in the case of a ball grid array, the external connection lands are formed in a lattice shape, and since mounting is performed on the surface, stress is likely to occur at the time of mounting or after mounting, and cracks may occur in the via holes. There was a fear that it would.

【0004】また、直流電解法による電解めっきによっ
てバイアホールを形成している場合、バイアホールの導
通路部分のめっき析出にばらつきが発生し、バイアホー
ルの接続信頼性が十分でない、という問題があった。具
体例として、バイアホールの上部でめっきが厚くなり、
バイアホール上部を塞いでしまうために、内部に空洞を
生じてしまう、というような現象が生じやすかった。空
洞の内部には硫酸銅めっき液が封じ込められてしまうた
め、めっきにより析出した皮膜の腐食現象が生じ、バイ
アホールを損傷させる恐れがあった。
[0004] Further, when via holes are formed by electrolytic plating by a direct current electrolysis method, there is a problem that the plating deposition in the conductive path portions of the via holes varies, and the connection reliability of the via holes is not sufficient. . As a specific example, the plating becomes thicker at the top of the via hole,
Since the upper portion of the via hole was closed, a cavity was easily formed inside the via hole. Since the copper sulfate plating solution is confined inside the cavity, a corrosion phenomenon of a film deposited by plating occurs, and there is a possibility that the via hole may be damaged.

【0005】そのため、バイアホール部は、輸送、取り
扱い時、あるいは使用時の応力等により、クラックが生
じ難く、電気的な接続信頼性の高い構造であることが望
まれていた。本発明は上記問題点を解決するためになさ
れたもので、フィルムキャリアの折り曲げや応力に対し
て物理強度に優れ、電気的に接続信頼性の高い構造を有
するボールグリッドアレイ用のフィルムキャリア及びそ
の製造方法を提供することを目的とする。
[0005] Therefore, it has been desired that the via hole portion has a structure in which cracks are unlikely to occur due to stress during transportation, handling, or use, and electrical connection reliability is high. The present invention has been made in order to solve the above problems, and has excellent physical strength against bending and stress of a film carrier, and has a structure having a highly reliable electrical connection, and a film carrier for a ball grid array. It is intended to provide a manufacturing method.

【0006】[0006]

【課題を解決するための手段】本発明において上記課題
を解決するため、請求項1記載の発明は、可撓性を有す
る絶縁性フィルムの一方の面に配線層が、他方の面に格
子状の外部接続用ランドが形成されており、前記配線層
と前記外部接続用ランドとがバイアホールにて電気的に
接続されてなるボールグリッドアレイ用のフィルムキャ
リアにおいて、前記バイアホール内がめっきによって充
填されていることを特徴とするフィルムキャリアとした
ものである。
In order to solve the above-mentioned problems in the present invention, according to the first aspect of the present invention, a wiring layer is formed on one surface of a flexible insulating film, and a grid-like layer is formed on the other surface. External connection lands are formed, and the wiring layer and the external connection lands are electrically connected by via holes. In a film carrier for a ball grid array, the via holes are filled by plating. It is a film carrier characterized by being carried out.

【0007】また、請求項2においては、前記充填がP
R電解法によるめっきで行われていることを特徴とする
請求項1記載のフィルムキャリアとしたものである。
According to a second aspect of the present invention, the filling includes
2. The film carrier according to claim 1, wherein the film carrier is plated by an R electrolytic method.

【0008】また、請求項3においては、以下の工程を
有することを特徴とする請求項1又は2に記載のフィル
ムキャリアの製造方法としたものである。 (a)少なくとも一方の面に導体層が形成されている可
撓性を有する絶縁性フィルムを用意する工程。 (b)絶縁性フィルムの所定位置にバイアホール用の孔
を形成する工程。 (c)前記孔内をめっきによって充填する工程。 (d)前記導体層をパターニングして配線層及び外部接
続ランドを形成する工程。
According to a third aspect of the present invention, there is provided a method of manufacturing a film carrier according to the first or second aspect, comprising the following steps. (A) A step of preparing a flexible insulating film having a conductor layer formed on at least one surface. (B) forming a hole for a via hole at a predetermined position of the insulating film; (C) a step of filling the inside of the hole by plating. (D) forming a wiring layer and external connection lands by patterning the conductor layer;

【0009】さらにまた、請求項4においては、前記め
っきにPR電解法を用いることを特徴とする請求項3記
載のフィルムキャリアの製造方法としたものである。
Further, in the fourth aspect of the present invention, there is provided the method of manufacturing a film carrier according to the third aspect, wherein a PR electrolysis method is used for the plating.

【0010】[0010]

【発明の実施の形態】本発明のフィルムキャリアは、図
1に示すように、可撓性を有する絶縁フィルム1の一方
の面に配線層2a及び7aが、他方の面に格子状の外部
接続用ランド3a及び7bが形成されており、配線層2
a及び7aと格子状の外部接続用ランド3a及び7bと
はバイアホール8によって電気的接続が図られ、前記バ
イアホール8内がめっきによって充填され、特に好まし
い実施の形態として、充填がPR電解法によるめっきで
行われていることを特徴とするものである。このような
バイアホール構成のフィルムキャリアにすることによ
り、輸送、取り扱い及び使用時の応力等によりバイアホ
ール部にクラック等が生じ難く、且つ電気的接続信頼性
の高いフィルムキャリアを得ることができるようにした
ものである。
DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a film carrier of the present invention has wiring layers 2a and 7a on one surface of a flexible insulating film 1 and a grid-like external connection on the other surface. Lands 3a and 7b are formed and the wiring layer 2
A and 7a are electrically connected to the grid-like external connection lands 3a and 7b by via holes 8, and the inside of the via holes 8 is filled by plating. In a particularly preferred embodiment, the filling is performed by a PR electrolytic method. Characterized by being carried out by plating. By using such a film carrier having a via-hole structure, it is possible to obtain a film carrier in which cracks and the like hardly occur in the via-hole portion due to stress during transportation, handling and use, and high electrical connection reliability. It was made.

【0011】以下、本発明のフィルムキャリア及びフィ
ルムキャリアの製造方法の好ましい実施の形態について
説明する。図2(a)〜(f)に本発明のフィルムキャ
リアの製造方法の一実施例を工程順に示す部分模式構成
断面図を示す。まず、絶縁フィルム1の両面に銅フィル
ムを積層して導体層2及び導体層3を形成する(図1
(a)参照)。具体的には、絶縁フィルム1として75
μm厚のポリイミドフィルムを使用し、18μmの銅フ
ィルムを熱硬化性エポキシ接着剤を介して絶縁フィルム
1に貼着し、導体層2及び導体層3を形成したものであ
る。絶縁フィルム1に関しては耐熱性、機械的強度、耐
薬品性に優れたフィルムであればポリイミドフィルム以
外も使用でき、特に限定されるものでない。
Hereinafter, preferred embodiments of the film carrier and the method for producing the film carrier of the present invention will be described. 2 (a) to 2 (f) are cross-sectional views showing a partial schematic configuration of an embodiment of the method for producing a film carrier of the present invention in the order of steps. First, a copper film is laminated on both surfaces of the insulating film 1 to form the conductor layers 2 and 3 (FIG. 1).
(A)). Specifically, as the insulating film 1, 75
A conductor layer 2 and a conductor layer 3 are formed by using a polyimide film having a thickness of μm and bonding a copper film having a thickness of 18 μm to the insulating film 1 via a thermosetting epoxy adhesive. The insulating film 1 is not particularly limited as long as it is a film having excellent heat resistance, mechanical strength, and chemical resistance, other than a polyimide film.

【0012】次に、導体層2上に感光性のレジスト層を
形成しフォトリソグラフィー法でパターニング処理し
て、開口部4を形成する(図1(b)参照)。
Next, a photosensitive resist layer is formed on the conductor layer 2 and patterned by photolithography to form an opening 4 (see FIG. 1B).

【0013】次に、導体層2をマスクにして開口部4よ
りレーザを照射して、絶縁フィルム1をレーザ加工して
開口部5を形成する(図1(c)参照)。
Next, laser is irradiated from the opening 4 using the conductor layer 2 as a mask, and the insulating film 1 is laser-processed to form the opening 5 (see FIG. 1C).

【0014】次に、開口部5の壁面、導体層2及び導体
層3上に無電解銅めっきによって薄膜導体層6を形成す
る(図1(d)参照)。
Next, a thin-film conductor layer 6 is formed by electroless copper plating on the wall surface of the opening 5 and on the conductor layers 2 and 3 (see FIG. 1D).

【0015】次に、導体層2及び導体層3をめっき電極
の陰極として、PR電解法を用いて導体層2、導体層3
及び開口部5の薄膜導体層6上に電解銅めっきを行い、
導体層7及びバイアホール8を形成する(図1(e)参
照)。ここで、導体層2と導体層3はバイアホール8に
て電気的に接続される。さらに、PR電解法とは、電解
めっきを行う際に、陰極と陽極との間に流す電流方向を
反転させ、反転した状態を短時間保持した後に、再度電
流方向を反転させて電解めっきを行う、という電流方向
の反転操作を行う電解めっき方法のことである。
Next, using the conductor layers 2 and 3 as cathodes of the plating electrodes, the conductor layers 2 and 3
And electrolytic copper plating on the thin film conductor layer 6 in the opening 5,
The conductor layer 7 and the via hole 8 are formed (see FIG. 1E). Here, the conductor layer 2 and the conductor layer 3 are electrically connected by the via hole 8. Further, the PR electrolytic method is such that, when performing electrolytic plating, the direction of the current flowing between the cathode and the anode is reversed, and after maintaining the reversed state for a short time, the current direction is reversed again to perform the electrolytic plating. , An electrolytic plating method for performing a reversal operation of the current direction.

【0016】次に、導体層2、導体層3、薄膜導体層6
及び導体層7を通常のフォトパターニングプロセスによ
ってパターニング処理し、配線層2a及び7aと格子状
の外部接続用ランド3a及び7bを形成して、本発明の
フィルムキャリア10を得ることができる(図1(f)
参照)。
Next, the conductor layer 2, the conductor layer 3, the thin film conductor layer 6
Then, the conductor layer 7 is patterned by a normal photopatterning process to form the wiring layers 2a and 7a and the grid-like external connection lands 3a and 7b, thereby obtaining the film carrier 10 of the present invention (FIG. 1). (F)
reference).

【0017】[0017]

【実施例】以下、実施例により本発明を詳細に説明す
る。 <実施例1>75μm厚のポリイミドフィルムからなる
絶縁フィルム1の両面に18μm厚の銅フィルムを熱硬
化性エポキシ接着剤にて貼着し、導体層2及び導体層3
を形成した。
The present invention will be described below in detail with reference to examples. <Example 1> A copper film having a thickness of 18 µm was adhered to both sides of an insulating film 1 made of a polyimide film having a thickness of 75 µm with a thermosetting epoxy adhesive, and conductor layers 2 and 3 were formed.
Was formed.

【0018】次に、導体層2上にエッチングレジスト
(PMER:東京応化工業(株)製)を塗布して感光層
を形成し、フォトパターニングプロセスによりレジスト
パターンを形成し、導体層2をエッチングして80μm
φの開口部4を形成した。
Next, an etching resist (PMER: manufactured by Tokyo Ohka Kogyo Co., Ltd.) is applied on the conductor layer 2 to form a photosensitive layer, a resist pattern is formed by a photopatterning process, and the conductor layer 2 is etched. 80 μm
An opening 4 of φ was formed.

【0019】次に、エキシマレーザ加工機を用いて導体
層2をマスクにして開口部4よりレーザを照射して、絶
縁フィルム1に80μmφの開口部5を形成した。エキ
シマレーザ加工のエネルギー密度は1J/cm2であっ
た。
Next, a laser was irradiated from the opening 4 using the conductor layer 2 as a mask using an excimer laser beam machine to form an opening 5 of 80 μmφ in the insulating film 1. The energy density of the excimer laser processing was 1 J / cm 2 .

【0020】次に、開口部5の壁面、導体層2及び導体
層3上に無電解銅めっきによって薄膜導体層6を形成し
た。
Next, a thin film conductor layer 6 was formed on the wall surface of the opening 5, the conductor layer 2 and the conductor layer 3 by electroless copper plating.

【0021】次に、導体層2及び導体層3をめっき電極
の陰極として、PR電解法を用いて導体層2、導体層3
及び開口部5の薄膜導体層6上に電解銅めっき(電解銅
めっき浴:硫酸銅130g/l、硫酸190g/l、塩
素60ppm)を行い、導体層7及びバイアホール8を
形成した。ここで、 PR電解法を用いた電解銅めっき
条件について説明する。まず、電流密度1A/dm2
50msec電解めっきを行った後、電流方向を反転さ
せて、電流密度3A/dm2で2msec電流を流し、
さらに電流方向を反転させて、電流密度1A/dm2
50msec電流を流した。そして電流方向を反転させ
て、電流密度3A/dm2で2msec電流を流した。
これを繰り返して所定厚の導体層を形成した。
Next, using the conductor layers 2 and 3 as cathodes of the plating electrodes, the conductor layers 2 and 3 were formed by PR electrolysis.
Electrolytic copper plating (electrolytic copper plating bath: copper sulfate 130 g / l, sulfuric acid 190 g / l, chlorine 60 ppm) was performed on the thin film conductor layer 6 in the opening 5 to form the conductor layer 7 and the via hole 8. Here, conditions for electrolytic copper plating using the PR electrolytic method will be described. First, after performing 50 msec electrolytic plating at a current density of 1 A / dm 2 , the current direction is reversed, and a current of 2 msec is passed at a current density of 3 A / dm 2 ,
The current direction was further reversed, and a current of 50 msec was passed at a current density of 1 A / dm 2 . Then, the current direction was reversed, and a current of 2 msec was passed at a current density of 3 A / dm 2 .
This was repeated to form a conductor layer having a predetermined thickness.

【0022】次に、導体層2、導体層3、薄膜導体層6
及び導体層7を通常のフォトパターニングプロセスによ
ってパターニング処理し、配線層2a及び7aと格子状
の外部接続用ランド3a及び7bを形成して、本発明の
フィルムキャリア10を得た。
Next, the conductor layer 2, the conductor layer 3, the thin film conductor layer 6
Then, the conductor layer 7 was subjected to a patterning process by a normal photo-patterning process to form wiring layers 2a and 7a and lattice-like external connection lands 3a and 7b, thereby obtaining a film carrier 10 of the present invention.

【0023】<実施例2>まず、75μm厚のポリイミ
ドフィルムからなる絶縁フィルム1の両面に18μm厚
の銅フィルムを熱硬化性エポキシ接着剤にて貼着し、導
体層2及び導体層3を形成した。
<Embodiment 2> First, a copper film having a thickness of 18 μm is adhered to both sides of an insulating film 1 made of a polyimide film having a thickness of 75 μm with a thermosetting epoxy adhesive to form a conductor layer 2 and a conductor layer 3. did.

【0024】次に、導体層2上にエッチングレジスト
(PMER:東京応化工業(株)製)を塗布して感光層
を形成し、フォトパターニングプロセスによりレジスト
パターンを形成し、導体層2をエッチングして60μm
φの開口部4を形成した。
Next, an etching resist (PMER: manufactured by Tokyo Ohka Kogyo Co., Ltd.) is applied on the conductor layer 2 to form a photosensitive layer, a resist pattern is formed by a photo-patterning process, and the conductor layer 2 is etched. 60 μm
An opening 4 of φ was formed.

【0025】次に、炭酸ガスレーザ加工機を用いて導体
層2をマスクにして開口部4よりレーザを照射して、絶
縁フィルム1に60μmφの開口部5を形成した。
Next, using a carbon dioxide laser beam machine, the conductive layer 2 was used as a mask to irradiate laser from the opening 4 to form an opening 5 of 60 μmφ in the insulating film 1.

【0026】次に、開口部5の壁面、導体層2及び導体
層3上に無電解銅めっきによって薄膜導体層6を形成し
た。
Next, a thin-film conductor layer 6 was formed on the wall surface of the opening 5 and on the conductor layers 2 and 3 by electroless copper plating.

【0027】次に、導体層2及び導体層3をめっき電極
の陰極として、PR電解法を用いて導体層2、導体層3
及び開口部5の薄膜導体層6上に電解銅めっき(電解銅
めっき浴:硫酸銅130g/l、硫酸190g/l、塩
素60ppm)を行い、導体層7及びバイアホール8を
形成した。絶縁フィルム1に開口部5を形成した。
Next, using the conductor layers 2 and 3 as cathodes of the plating electrodes, the conductor layers 2 and 3 were formed by PR electrolysis.
Electrolytic copper plating (electrolytic copper plating bath: copper sulfate 130 g / l, sulfuric acid 190 g / l, chlorine 60 ppm) was performed on the thin film conductor layer 6 in the opening 5 to form the conductor layer 7 and the via hole 8. An opening 5 was formed in the insulating film 1.

【0028】次に、導体層2、導体層3、薄膜導体層6
及び導体層7を通常のフォトパターニングプロセスによ
ってパターニング処理し、配線層2a及び7aと格子状
の外部接続用ランド3a及び7bを形成して、本発明の
フィルムキャリア10を得た。
Next, the conductor layer 2, the conductor layer 3, the thin film conductor layer 6
Then, the conductor layer 7 was subjected to a patterning process by a normal photo-patterning process to form wiring layers 2a and 7a and lattice-like external connection lands 3a and 7b, thereby obtaining a film carrier 10 of the present invention.

【0029】[0029]

【発明の効果】本発明の請求項1記載のフィルムキャリ
アによれば、バイアホール内がめっきによって充填され
ているため、折り曲げや応力に対する物理強度に優れ、
電気的に接続信頼性の高い構造を有するボールグリッド
アレイ用のフィルムキャリアを得ることができる。ま
た、本発明の請求項2記載のフィルムキャリアによれ
ば、充填がPR電解法によるめっきで行われているた
め、折り曲げや応力に対する物理強度がさらに優れ、電
気的に接続信頼性がさらに高い構造を有するボールグリ
ッドアレイ用のフィルムキャリアを得ることができる。
そして、本発明の請求項3記載のフィルムキャリアの製
造方法によれば、バイアホール内をめっきによって空隙
が生ずることなく充填でき、折り曲げや応力に対する物
理強度に優れ、電気的に接続信頼性の高い構造を有する
ボールグリッドアレイ用のフィルムキャリアを製造する
ことが可能となる。さらに、本発明の請求項4記載のフ
ィルムキャリアの製造方法によれば、バイアホール用の
孔内をめっきによって充填する際に、PR電解法を用い
るため、バイアホール内をより完全に充填することがで
き、折り曲げや応力に対する物理強度がさらに優れ、電
気的に接続信頼性がさらに高い構造を有するボールグリ
ッドアレイ用のフィルムキャリアを製造することが可能
となる。
According to the film carrier according to the first aspect of the present invention, since the inside of the via hole is filled with plating, the film carrier has excellent physical strength against bending and stress.
A film carrier for a ball grid array having a structure with high electrical connection reliability can be obtained. According to the film carrier according to the second aspect of the present invention, the filling is performed by plating by the PR electrolytic method, so that the physical strength against bending and stress is further improved and the electrical connection reliability is further improved. Can be obtained.
According to the method for manufacturing a film carrier according to the third aspect of the present invention, the inside of the via hole can be filled by plating without generating a void, the physical strength against bending and stress is excellent, and the electrical connection reliability is high. A film carrier for a ball grid array having a structure can be manufactured. Further, according to the method for manufacturing a film carrier according to claim 4 of the present invention, when filling the inside of the via hole by plating, the inside of the via hole is more completely filled because the PR electrolytic method is used. Thus, it is possible to manufacture a film carrier for a ball grid array having a structure that is further excellent in physical strength against bending and stress and has higher electrical connection reliability.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明のフィルムキャリアの一実施例を示す部
分模式構成断面図である。
FIG. 1 is a partial schematic configuration sectional view showing one embodiment of a film carrier of the present invention.

【図2】(a)〜(f)は、本発明のフィルムキャリア
の製造方法の一実施例を工程順に示す部分模式構成断面
図である。
FIGS. 2 (a) to 2 (f) are partial schematic sectional views showing one embodiment of a method for producing a film carrier of the present invention in the order of steps.

【図3】従来のフィルムキャリアの一例を示す部分模式
構成断面図である。
FIG. 3 is a partial schematic configuration sectional view showing an example of a conventional film carrier.

【符号の説明】[Explanation of symbols]

1……絶縁フィルム 2、3……導体層 2a、7a……配線層 3a、7b……外部接続用ランド 4、5……開口部 6……薄膜導体層 7……導体層 8……バイアホール 10……フィルムキャリア 21……絶縁フィルム 22、25……配線層 23……外部接続用ランド 24……バイアホール DESCRIPTION OF SYMBOLS 1 ... Insulating film 2, 3 ... Conductor layer 2a, 7a ... Wiring layer 3a, 7b ... Land for external connection 4, 5 ... Opening 6 ... Thin film conductor layer 7 ... Conductor layer 8 ... Via Hole 10: Film carrier 21: Insulating film 22, 25: Wiring layer 23: Land for external connection 24: Via hole

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】可撓性を有する絶縁性フィルムの一方の面
に配線層が、他方の面に格子状の外部接続用ランドが形
成されており、前記配線層と前記外部接続用ランドとが
バイアホールにて電気的に接続されてなるボールグリッ
ドアレイ用のフィルムキャリアにおいて、前記バイアホ
ール内がめっきによって充填されていることを特徴とす
るフィルムキャリア。
1. A wiring layer is formed on one surface of a flexible insulating film, and grid-like external connection lands are formed on the other surface. The wiring layer and the external connection lands are separated from each other. A film carrier for a ball grid array electrically connected by via holes, wherein the via holes are filled by plating.
【請求項2】前記充填がPR電解法によるめっきで行わ
れていることを特徴とする請求項1記載のフィルムキャ
リア。
2. The film carrier according to claim 1, wherein said filling is performed by plating by a PR electrolytic method.
【請求項3】以下の工程を有することを特徴とする請求
項1又は2に記載のフィルムキャリアの製造方法。 (a)少なくとも一方の面に導体層が形成されている可
撓性を有する絶縁性フィルムを用意する工程。 (b)絶縁性フィルムの所定位置にバイアホール用の孔
を形成する工程。 (c)前記孔内をめっきによって充填する工程。 (d)前記導体層をパターニングして配線層を形成する
工程。
3. The method for producing a film carrier according to claim 1, comprising the following steps. (A) A step of preparing a flexible insulating film having a conductor layer formed on at least one surface. (B) forming a hole for a via hole at a predetermined position of the insulating film; (C) a step of filling the inside of the hole by plating. (D) forming a wiring layer by patterning the conductor layer;
【請求項4】前記めっきにPR電解法を用いることを特
徴とする請求項3記載のフィルムキャリアの製造方法。
4. The method according to claim 3, wherein a PR electrolysis method is used for the plating.
JP2000160436A 2000-05-30 2000-05-30 Film carrier and its manufacturing method Pending JP2001338951A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000160436A JP2001338951A (en) 2000-05-30 2000-05-30 Film carrier and its manufacturing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000160436A JP2001338951A (en) 2000-05-30 2000-05-30 Film carrier and its manufacturing method

Publications (1)

Publication Number Publication Date
JP2001338951A true JP2001338951A (en) 2001-12-07

Family

ID=18664627

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000160436A Pending JP2001338951A (en) 2000-05-30 2000-05-30 Film carrier and its manufacturing method

Country Status (1)

Country Link
JP (1) JP2001338951A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100990941B1 (en) 2008-08-29 2010-11-01 주식회사 하이닉스반도체 Circuit substrate, method of manufacturing the same, and semiconductor package having the same
US20210384654A1 (en) * 2018-11-09 2021-12-09 Guangzhou Fangbang Electronics Co., Ltd. Flexible Connector and Manufacturing Method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100990941B1 (en) 2008-08-29 2010-11-01 주식회사 하이닉스반도체 Circuit substrate, method of manufacturing the same, and semiconductor package having the same
US20210384654A1 (en) * 2018-11-09 2021-12-09 Guangzhou Fangbang Electronics Co., Ltd. Flexible Connector and Manufacturing Method
US11848508B2 (en) * 2018-11-09 2023-12-19 Guangzhou Fangbang Electronics Co., Ltd. Flexible connector and manufacturing method

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