JP2004266257A - Method of manufacturing substrate for electronic component - Google Patents

Method of manufacturing substrate for electronic component Download PDF

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Publication number
JP2004266257A
JP2004266257A JP2003423308A JP2003423308A JP2004266257A JP 2004266257 A JP2004266257 A JP 2004266257A JP 2003423308 A JP2003423308 A JP 2003423308A JP 2003423308 A JP2003423308 A JP 2003423308A JP 2004266257 A JP2004266257 A JP 2004266257A
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Japan
Prior art keywords
flexible circuit
circuit board
terminal
pattern
cavity
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JP2003423308A
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Japanese (ja)
Inventor
Shinji Mizuno
伸二 水野
Koji Mitsui
浩二 三井
Katsutoshi Yanoshita
勝利 矢ノ下
Shinichi Suzuki
伸一 鈴木
Takashi Shinoki
高司 篠木
Kazutaka Nakagome
和隆 中込
Naoki Fukuda
直紀 福田
Kozo Morita
幸三 森田
Daisuke Makino
大介 牧野
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Teikoku Tsushin Kogyo Co Ltd
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Teikoku Tsushin Kogyo Co Ltd
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Application filed by Teikoku Tsushin Kogyo Co Ltd filed Critical Teikoku Tsushin Kogyo Co Ltd
Priority to JP2003423308A priority Critical patent/JP2004266257A/en
Priority to KR1020057014239A priority patent/KR20050103913A/en
Priority to US10/541,459 priority patent/US7728710B2/en
Priority to DE112004000260T priority patent/DE112004000260T5/en
Priority to PCT/JP2004/001199 priority patent/WO2004072993A1/en
Priority to TW093103295A priority patent/TWI252495B/en
Publication of JP2004266257A publication Critical patent/JP2004266257A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a method of manufacturing a substrate for an electronic component with which the manufacturing is easy; production efficiency is excellent; the material cost is reduced resulting in total cost reduction; and thinning can be achieved. <P>SOLUTION: A flexible circuit substrate 20 is accommodated in a cavity C1 formed by a first and a second metal molds 41, 45 in such a way that a surface of the flexible circuit substrate 20 touches an inner plane surface C11 of the cavity C1. Then, the cavity C1 is filled with a molten molding resin. After the filling molding resin is solidified, the first and the second metal molds 41, 45 are removed, and an insulating base pedestal 10, which is composed of the molding resin and on the upper face of which the flexible circuit substrate 20 is mounted, is obtained. After then, terminal plates 70, 70 are mounted at an edge of the insulating base pedestal 10 so as to be connected to terminal patterns 29, 29 formed on the flexible circuit substrate 20. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

本発明は、半固定可変抵抗器等に用いられる電子部品用基板の製造方法に関するものである。   The present invention relates to a method for manufacturing an electronic component substrate used for a semi-fixed variable resistor and the like.

従来、チップ型の半固定可変抵抗器は、セラミック基板と摺動子と集電板とを具備し、セラミック基板の上面に摺動子を配置すると共にセラミック基板の下面に集電板を配置し、その際集電板に設けた筒状突起をセラミック基板に設けた貫通孔と摺動子に設けた嵌挿孔に挿入し、筒状突起の先端をかしめることで摺動子をセラミック基板上に回動自在に固定して構成されている。そして摺動子を回動することで摺動子に設けた摺動接点がセラミック基板上に設けた馬蹄形状の抵抗体パターンの表面を摺接し、これによって抵抗体パターンの両端に設けた端子パターンと前記集電板との間の抵抗値を変化させていた。   Conventionally, a chip-type semi-fixed variable resistor includes a ceramic substrate, a slider, and a current collector, and a slider is disposed on an upper surface of the ceramic substrate and a current collector is disposed on a lower surface of the ceramic substrate. At this time, the cylindrical projection provided on the current collector plate is inserted into the through hole provided in the ceramic substrate and the fitting insertion hole provided in the slider, and the tip of the cylindrical projection is swaged to thereby attach the slider to the ceramic substrate. It is configured to be rotatably fixed on the upper side. By rotating the slider, the sliding contact provided on the slider slides on the surface of the horseshoe-shaped resistor pattern provided on the ceramic substrate, thereby forming the terminal pattern provided on both ends of the resistor pattern. And the resistance value between the current collector and the current collector was changed.

しかしながら上記半固定可変抵抗器は、セラミック基板を用いている上に、セラミック基板の上に抵抗体パターンを焼き付けなければならないので、その生産効率が悪く、また材料費も高く、その低価格化に限界があった。またセラミック基板は破損し易く、更なる薄型化は困難であった。
特開平11−307317号公報
However, since the above-mentioned semi-fixed variable resistor uses a ceramic substrate and a resistor pattern must be printed on the ceramic substrate, the production efficiency is low, the material cost is high, and the price is reduced. There was a limit. Further, the ceramic substrate is easily broken, and it is difficult to further reduce the thickness.
JP-A-11-307317

本発明は上述の点に鑑みてなされたものでありその目的は、製造が容易で生産効率が良く、材料費も低減できて低コスト化が図れ、さらに薄型化も容易に図れる電子部品用基板の製造方法を提供することにある。   The present invention has been made in view of the above points, and an object of the present invention is to provide a substrate for an electronic component that is easy to manufacture, has good production efficiency, can reduce material costs, can achieve low cost, and can easily achieve thinning. It is to provide a manufacturing method of.

本願請求項1に記載の発明は、合成樹脂フイルム上にその表面に摺動子が摺接する導体パターンとこの導体パターンに接続される端子パターンとを設けてなるフレキシブル回路基板と、金属板からなる端子板と、電子部品用基板の外形形状に形成されたキャビティーを有する金型とを用意し、前記金型のキャビティー内に前記フレキシブル回路基板を収納し、その際前記フレキシブル回路基板の導体パターンを設けた面をキャビティー内の一方の面に当接し、前記キャビティー内に溶融した成形樹脂を充填し、充填した成形樹脂が固化した後に金型を取り外すことで、成形樹脂からなる絶縁基台にフレキシブル回路基板をその導体パターンと端子パターンとを露出するように取り付け、その後絶縁基台端部に、前記フレキシブル回路基板上に設けられた端子パターンに接続するように端子板を取り付けたことを特徴とする電子部品用基板の製造方法にある。   The invention described in claim 1 of the present application comprises a metal plate and a flexible circuit board provided on a synthetic resin film with a conductor pattern on the surface of which a slider slides and a terminal pattern connected to the conductor pattern. A terminal plate and a mold having a cavity formed in the external shape of the electronic component substrate are prepared, and the flexible circuit board is housed in the cavity of the mold, and a conductor of the flexible circuit board is used. The surface provided with the pattern is brought into contact with one surface in the cavity, the cavity is filled with a molten molding resin, and after the filled molding resin is solidified, the mold is removed, thereby forming an insulation made of the molding resin. Attach the flexible circuit board to the base so that its conductor pattern and terminal pattern are exposed, and then, at the end of the insulating base, on the flexible circuit board In the manufacturing method of the substrate for electronic devices, characterized in that fitted with terminal board to connect to the vignetting terminal pattern.

本願請求項2に記載の発明は、合成樹脂フイルム上にその表面に摺動子が摺接する導体パターンとこの導体パターンに接続される端子パターンとを設けてなるフレキシブル回路基板と、金属板からなる端子板と、電子部品用基板の外形形状に形成されたキャビティーを有する金型とを用意し、前記金型のキャビティー内に前記フレキシブル回路基板と端子板とを収納し、その際前記フレキシブル回路基板の導体パターンを設けた面をキャビティー内の一方の面に当接すると同時に、端子板の一部をフレキシブル回路基板の端子パターンに当接又は対向させておき、前記キャビティー内に溶融した成形樹脂を充填し、充填した成形樹脂が固化した後に金型を取り外すことで、成形樹脂からなる絶縁基台にフレキシブル回路基板をその導体パターンと端子パターンとを露出するように取り付けると同時に、この絶縁基台端部に、前記フレキシブル回路基板上に設けられた端子パターンに接続するように端子板を取り付けたことを特徴とする電子部品用基板の製造方法にある。   The invention described in claim 2 of the present application comprises a flexible circuit board provided with a conductor pattern on a surface of which a slider slides on a synthetic resin film and a terminal pattern connected to the conductor pattern, and a metal plate. A terminal plate and a mold having a cavity formed in the external shape of the electronic component substrate are prepared, and the flexible circuit board and the terminal plate are housed in the cavity of the mold. At the same time that the surface on which the conductor pattern of the circuit board is provided abuts against one surface in the cavity, a part of the terminal plate abuts or is opposed to the terminal pattern of the flexible circuit board, and is melted in the cavity. After the filled molding resin is solidified and the filled molding resin is solidified, the mold is removed and the flexible circuit board is placed on the insulating base made of molding resin. And a terminal board attached to an end portion of the insulating base so as to be connected to a terminal pattern provided on the flexible circuit board. Manufacturing method.

本願請求項3に記載の発明は、合成樹脂フイルム上にその表面に摺動子が摺接する導体パターンとこの導体パターンに接続される端子パターンとを設けてなるフレキシブル回路基板と、金属板からなる集電板と、電子部品用基板の外形形状に形成されたキャビティーを有する金型とを用意し、前記金型のキャビティー内に前記フレキシブル回路基板と集電板とを収納し、その際前記フレキシブル回路基板の導体パターンを設けた面をキャビティー内の一方の面に当接し、前記キャビティー内に溶融した成形樹脂を充填し、充填した成形樹脂が固化した後に金型を取り外すことで、成形樹脂からなる絶縁基台にフレキシブル回路基板をその導体パターンと端子パターンとが露出するように取り付けると同時に、集電板を埋め込み、その後絶縁基台端部に、前記フレキシブル回路基板上に設けられた端子パターンに接続するように金属板製の端子板を取り付けたことを特徴とする電子部品用基板の製造方法にある。   The invention described in claim 3 of the present application comprises a metal plate and a flexible circuit board provided with a conductor pattern on a surface of which a slider slides on a synthetic resin film and a terminal pattern connected to the conductor pattern. A current collector plate and a mold having a cavity formed in the outer shape of the electronic component substrate are prepared, and the flexible circuit board and the current collector plate are stored in the cavity of the mold. By contacting the surface on which the conductor pattern of the flexible circuit board is provided with one surface in the cavity, filling the cavity with a molten molding resin, and removing the mold after the filled molding resin is solidified. The flexible circuit board is mounted on an insulating base made of molding resin so that its conductor pattern and terminal pattern are exposed, and at the same time, the current collector is embedded, and then the insulating base is mounted. The end, in the manufacturing method of the substrate for electronic devices, characterized in that mounted a metal plate made of terminal plate to be connected to a terminal pattern provided on the flexible circuit board.

本願請求項4に記載の発明は、合成樹脂フイルム上にその表面に摺動子が摺接する導体パターンとこの導体パターンに接続される端子パターンとを設けてなるフレキシブル回路基板と、金属板からなる集電板と、金属板からなる端子板と、電子部品用基板の外形形状に形成されたキャビティーを有する金型とを用意し、前記金型のキャビティー内に前記フレキシブル回路基板と集電板と端子板とを収納し、その際前記フレキシブル回路基板の導体パターンを設けた面をキャビティー内の一方の面に当接すると同時に、端子板の一部をフレキシブル回路基板の端子パターンに当接又は対向させておき、前記キャビティー内に溶融した成形樹脂を充填し、充填した成形樹脂が固化した後に金型を取り外すことで、成形樹脂からなる絶縁基台にフレキシブル回路基板をその導体パターンと端子パターンとを露出するように取り付けると同時に、この絶縁基台端部に、前記フレキシブル回路基板上に設けられた端子パターンに接続するように端子板を取り付け、さらに同時に集電板を埋め込んだことを特徴とする電子部品用基板の製造方法にある。   The invention described in claim 4 of the present application comprises a metal plate and a flexible circuit board provided on a synthetic resin film with a conductor pattern on the surface of which a slider slides and a terminal pattern connected to the conductor pattern. A current collector plate, a terminal plate made of a metal plate, and a mold having a cavity formed in the outer shape of the electronic component substrate are prepared, and the flexible circuit board and the current collector are collected in the cavity of the mold. The board and the terminal board are accommodated, and at this time, the surface of the flexible circuit board on which the conductor pattern is provided abuts on one surface in the cavity, and at the same time, a part of the terminal board contacts the terminal pattern of the flexible circuit board. The cavity is filled with molten molding resin, and after the filled molding resin is solidified, the mold is removed. At the same time as mounting the shibble circuit board so as to expose the conductor pattern and the terminal pattern, at the end of the insulating base, a terminal board is mounted so as to be connected to the terminal pattern provided on the flexible circuit board. A method for manufacturing a substrate for electronic components, wherein a current collector plate is embedded.

本願請求項5に記載の発明は、合成樹脂フイルム上にその表面に摺動子が摺接する導体パターンとこの導体パターンに接続される端子パターンとを設けてなるフレキシブル回路基板と、金属板からなる集電板と、電子部品用基板の外形形状に形成されたキャビティーを有する金型とを用意し、前記金型のキャビティー内に前記フレキシブル回路基板と集電板とを収納し、その際前記フレキシブル回路基板の導体パターンを設けた面をキャビティー内の一方の面に当接し、前記キャビティー内に溶融した成形樹脂を充填し、充填した成形樹脂が固化した後に金型を取り外すことで、成形樹脂からなる絶縁基台にフレキシブル回路基板をその導体パターンと端子パターンとが露出するように取り付けると同時に、集電板を埋め込んだことを特徴とする電子部品用基板の製造方法にある。   The invention described in claim 5 of the present application comprises a metal plate and a flexible circuit board provided with a conductor pattern on a surface of which a slider slides on a synthetic resin film and a terminal pattern connected to the conductor pattern. A current collector plate and a mold having a cavity formed in the outer shape of the electronic component substrate are prepared, and the flexible circuit board and the current collector plate are stored in the cavity of the mold. By contacting the surface on which the conductor pattern of the flexible circuit board is provided with one surface in the cavity, filling the cavity with a molten molding resin, and removing the mold after the filled molding resin is solidified. A flexible circuit board is mounted on an insulating base made of molding resin so that its conductor pattern and terminal pattern are exposed, and at the same time, a current collector is embedded. In the manufacturing method of a substrate for electronic devices that.

本願請求項1に記載の発明によれば、フレキシブル回路基板を絶縁基台にインサート成形するので、その製造が容易に行え、低コスト化が図れる。また絶縁基台を合成樹脂成形品で構成したので、その製造が容易で、セラミック基板に比べて材料費の低コスト化が図れ、厚みの薄型化も容易且つ安価に行える。また合成樹脂フイルムに多数組の導体パターンを同時に形成し、次に各組の導体パターンを設けたフレキシブル回路基板にそれぞれ同時に絶縁基台を成形した後、一体に連結したフレキシブル回路基板をカットして個品化することができるので、電子部品用基板を容易に大量生産でき、生産性が向上する。   According to the first aspect of the present invention, since the flexible circuit board is insert-molded on the insulating base, the production can be easily performed, and the cost can be reduced. In addition, since the insulating base is made of a synthetic resin molded product, its manufacture is easy, the material cost can be reduced as compared with the ceramic substrate, and the thickness can be reduced easily and inexpensively. Also, a large number of sets of conductor patterns are simultaneously formed on a synthetic resin film, and then an insulating base is simultaneously formed on each of the flexible circuit boards provided with the respective sets of conductor patterns, and then the integrally connected flexible circuit boards are cut. Since it can be individualized, electronic component substrates can be easily mass-produced, and productivity is improved.

本願請求項2に記載の発明によれば、フレキシブル回路基板ばかりか端子板をも絶縁基台にインサート成形するので、別途端子板の絶縁基台への取付工程が不要になり、金属板製の端子板を取り付ける構造の電子部品用基板の製造が容易に行え、低コスト化が図れる。また端子板の絶縁基台への固定と端子板の端子パターンへの電気的接続とを容易に確実に行うことができる。また絶縁基台を合成樹脂成形品で構成したので、その製造が容易で、セラミック基板に比べて材料費の低コスト化が図れ、厚みの薄型化も容易且つ安価に行える。   According to the invention of claim 2 of the present application, not only the flexible circuit board but also the terminal board is insert-molded on the insulating base, so that a separate step of mounting the terminal board on the insulating base is not required, and the metal plate is formed. An electronic component substrate having a structure for mounting a terminal plate can be easily manufactured, and cost reduction can be achieved. Further, the fixing of the terminal plate to the insulating base and the electrical connection of the terminal plate to the terminal pattern can be easily and reliably performed. In addition, since the insulating base is made of a synthetic resin molded product, its manufacture is easy, the material cost can be reduced as compared with the ceramic substrate, and the thickness can be reduced easily and inexpensively.

本願請求項3に記載の発明によれば、フレキシブル回路基板と集電板とを絶縁基台にインサート成形するので、別途集電板の絶縁基台への取付工程が不要になり、金属板製の集電板を取り付ける構造の電子部品用基板の製造が容易に行え、低コスト化が図れる。また絶縁基台を合成樹脂成形品で構成したので、その製造が容易で、セラミック基板に比べて材料費の低コスト化が図れ、厚みの薄型化も容易且つ安価に行える。   According to the third aspect of the present invention, since the flexible circuit board and the current collecting plate are insert-molded on the insulating base, a separate mounting step of the current collecting plate on the insulating base is unnecessary, and the metal plate is formed. The electronic component substrate having the structure in which the current collector plate is mounted can be easily manufactured, and the cost can be reduced. In addition, since the insulating base is made of a synthetic resin molded product, its manufacture is easy, the material cost can be reduced as compared with the ceramic substrate, and the thickness can be reduced easily and inexpensively.

本願請求項4に記載の発明によれば、フレキシブル回路基板と集電板と端子板とを絶縁基台にインサート成形するので、別途集電板の絶縁基台への取付工程や、端子板の絶縁基台への取付工程が不要になり、金属板製の集電板と端子板とを取り付ける構造の電子部品用基板の製造が容易に行え、低コスト化が図れる。また絶縁基台を合成樹脂成形品で構成したので、その製造が容易で、セラミック基板に比べて材料費の低コスト化が図れ、厚みの薄型化も容易且つ安価に行える。   According to the invention as set forth in claim 4 of the present application, since the flexible circuit board, the current collector, and the terminal plate are insert-molded on the insulating base, a step of separately attaching the current collector to the insulating base, The step of attaching to the insulating base is not required, and the electronic component substrate having a structure in which the current collector plate and the terminal plate made of a metal plate are attached can be easily manufactured, and the cost can be reduced. In addition, since the insulating base is made of a synthetic resin molded product, its manufacture is easy, the material cost can be reduced as compared with the ceramic substrate, and the thickness can be reduced easily and inexpensively.

本願請求項5に記載の発明によれば、フレキシブル回路基板と集電板とを絶縁基台にインサート成形するので、別途集電板の絶縁基台への取付工程が不要になり、金属板製の集電板を取り付ける構造の電子部品用基板の製造が容易に行え、低コスト化が図れる。また絶縁基台を合成樹脂成形品で構成したので、その製造が容易で、セラミック基板に比べて材料費の低コスト化が図れ、厚みの薄型化も容易且つ安価に行える。   According to the invention as set forth in claim 5 of the present application, since the flexible circuit board and the current collecting plate are insert-molded on the insulating base, a separate mounting step of the current collecting plate on the insulating base is not required, and the metal plate is formed. The electronic component substrate having the structure in which the current collector plate is mounted can be easily manufactured, and the cost can be reduced. In addition, since the insulating base is made of a synthetic resin molded product, its manufacture is easy, the material cost can be reduced as compared with the ceramic substrate, and the thickness can be reduced easily and inexpensively.

以下、本発明の実施の形態を図面に基づいて詳細に説明する。
〔第一の実施の形態〕
図1,図2は本発明の第一の実施の形態を用いて製造した電子部品用基板1−1を示す図であり、図1は斜視図、図2(a)は平面図、図2(b)は正面図、図2(c)は図2(a)のA−A断面図、図2(d)は裏面図である。両図に示すように電子部品用基板1−1は、絶縁基台10の上面にフレキシブル回路基板20をインサート成形によって一体に取り付けると共に、端子板70,70を前記フレキシブル回路基板20上に設けた端子パターン29,29と接続するように絶縁基台10の端部に取り付けて構成されている。以下各構成部品について説明する。
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[First embodiment]
1 and 2 are views showing an electronic component substrate 1-1 manufactured using the first embodiment of the present invention. FIG. 1 is a perspective view, FIG. 2 (a) is a plan view, and FIG. 2B is a front view, FIG. 2C is a cross-sectional view taken along line AA of FIG. 2A, and FIG. 2D is a rear view. As shown in both figures, in the electronic component substrate 1-1, the flexible circuit board 20 is integrally attached to the upper surface of the insulating base 10 by insert molding, and the terminal plates 70, 70 are provided on the flexible circuit board 20. It is configured to be attached to the end of the insulating base 10 so as to be connected to the terminal patterns 29, 29. Hereinafter, each component will be described.

絶縁基台10は略矩形状で板状の合成樹脂成形品であり、その中央には円形の貫通孔11が設けられ、またその下面中央には凹状の集電板収納凹部15が設けられ、さらにその下面の一端辺近傍には端子板70,70を収納する寸法形状の端子板収納凹部18,18が設けられている。この絶縁基台10は熱可塑性の合成樹脂、例えばナイロンやポリフェニレンスルフイド(PPS)等によって構成されている。   The insulating base 10 is a substantially rectangular plate-shaped synthetic resin molded product, a circular through hole 11 is provided at the center thereof, and a concave current collecting plate housing recess 15 is provided at the center of the lower surface thereof. Further, near the one end side of the lower surface, there are provided terminal plate storage recesses 18, 18 of a size and shape for storing the terminal plates 70, 70. The insulating base 10 is made of a thermoplastic synthetic resin, such as nylon or polyphenylene sulfide (PPS).

フレキシブル回路基板20は熱可塑性の合成樹脂フイルム(例えばポリイミドフイルム)上に端子パターン29,29とその表面に摺動子が摺接する導体パターン25とを設けて構成される。即ちこのフレキシブル回路基板20は合成樹脂フイルムの中央の前記貫通孔11に対応する位置にこれと同一内径の貫通孔21を設け、またその表面の貫通孔21の周囲にはこれを馬蹄形状に囲む導体パターン(以下この実施の形態では「抵抗体パターン」という)25を設け、さらに抵抗体パターン25の両端にはそれぞれ端子パターン29,29を抵抗体パターン25と接続して設けている。   The flexible circuit board 20 is configured by providing terminal patterns 29, 29 on a thermoplastic synthetic resin film (for example, a polyimide film) and a conductor pattern 25 on a surface of which a slider slides. That is, the flexible circuit board 20 is provided with a through-hole 21 having the same inner diameter as the through-hole 11 in the center of the synthetic resin film at a position corresponding to the through-hole 11, and surrounds the through-hole 21 on the surface in a horseshoe shape. A conductor pattern (hereinafter, referred to as a “resistor pattern”) 25 is provided, and terminal patterns 29 are connected to the resistor pattern 25 at both ends of the resistor pattern 25, respectively.

ここで前記抵抗体パターン25は物理的蒸着(PVD、physical vapor deposition)又は化学的蒸着(CVD、chemical vapor deposition)による金属薄膜によって構成されている。物理的蒸着の方法としては、真空蒸着、スパッタリング、イオンビーム蒸着等を用いる。化学的蒸着の方法としては、熱CVD法、プラズマCVD法、光CVD法等を用いる。蒸着する抵抗体パターン25の材質としては、ニッケルクロム合金等のニッケル系材料、又はクロム珪酸塩系化合物(Cr−SiO2)等からなるサーメット系材料、又は窒化タンタル等のタンタル系材料等を用いる。クロム珪酸塩系化合物は2000μΩ・cm以上の大きな比抵抗を容易に実現できるので、この電子部品用基板1−1の小型化に好適である。 Here, the resistor pattern 25 is formed of a metal thin film formed by physical vapor deposition (PVD, physical vapor deposition) or chemical vapor deposition (CVD, chemical vapor deposition). As a method of physical vapor deposition, vacuum vapor deposition, sputtering, ion beam vapor deposition, or the like is used. As a chemical vapor deposition method, a thermal CVD method, a plasma CVD method, a light CVD method, or the like is used. As a material of the resistor pattern 25 to be deposited, a nickel-based material such as a nickel-chromium alloy, a cermet-based material made of a chromium silicate-based compound (Cr—SiO 2 ), or a tantalum-based material such as tantalum nitride is used. . Since the chromium silicate-based compound can easily realize a large specific resistance of 2000 μΩ · cm or more, it is suitable for downsizing the electronic component substrate 1-1.

ところで本発明においては抵抗体パターン25として、カーボンペースト等の抵抗体ペーストからなる抵抗体パターンを用いることもできるが、この実施の形態においては、この電子部品用基板1−1が半固定可変抵抗器用の基板なので、金属蒸着による抵抗体パターン25を用いた。その理由は以下の通りである。即ち半固定可変抵抗器は通常別の回路基板等に取り付けられた後、摺動子を回動することで抵抗値をセットするが、一旦抵抗値をセットした後はその抵抗値を変化させず、セットした抵抗値をそのまま維持するように使用される。従ってこの種の半固定可変抵抗器にあっては、セットした抵抗値が温度や湿度の影響を受けにくいようにする必要がある。しかしながら抵抗体パターンとして抵抗体ペーストからなる抵抗体パターンを用いた場合、抵抗体パターンが樹脂中に導電粉を混合する構成なので、その樹脂が熱や湿度に影響され易く、その抵抗値が温度・湿度の変化によって変化し易い。   In the present invention, a resistor pattern made of a resistor paste such as a carbon paste can be used as the resistor pattern 25. In this embodiment, however, the electronic component substrate 1-1 is a semi-fixed variable resistor. Since the substrate was a dexterous substrate, the resistor pattern 25 formed by metal evaporation was used. The reason is as follows. That is, the semi-fixed variable resistor is usually mounted on another circuit board or the like, and then the resistance value is set by rotating the slider, but once the resistance value is set, the resistance value is not changed. Is used to maintain the set resistance value as it is. Therefore, in such a semi-fixed variable resistor, it is necessary to make the set resistance value less affected by temperature and humidity. However, when a resistor pattern made of a resistor paste is used as the resistor pattern, since the resistor pattern is configured to mix conductive powder in a resin, the resin is easily affected by heat and humidity, and its resistance value is determined by temperature and temperature. It is easily changed by changes in humidity.

一方上記金属蒸着による抵抗体パターン25によれば、抵抗体パターン25全体を均質で均一な厚みに形成できることは言うまでもなく、さらに樹脂中に導電粉を混合したペーストを印刷焼成した抵抗体パターンのように内部に樹脂を有していないので、熱や温度によって抵抗値が変化しにくい。例えばカーボンペーストを印刷焼成した抵抗体パターンの場合、抵抗温度係数が500ppm/℃なのに対して、上記真空蒸着を用いた金属薄膜の場合の抵抗温度係数は、100ppm/℃であった。なおこの金属薄膜の抵抗温度係数はセラミック基板に高温で抵抗体パターンを焼き付けた場合の抵抗温度係数と同等の良好な温度特性である。これらのことから本実施の形態では抵抗体パターンとして金属蒸着による抵抗体パターン25を用いたのである。   On the other hand, according to the resistor pattern 25 formed by metal vapor deposition, it is needless to say that the entire resistor pattern 25 can be formed to have a uniform and uniform thickness. Since there is no resin inside, the resistance value does not easily change due to heat or temperature. For example, in the case of a resistor pattern obtained by printing and firing a carbon paste, the temperature coefficient of resistance was 500 ppm / ° C., whereas the temperature coefficient of resistance in the case of a metal thin film using the above-described vacuum deposition was 100 ppm / ° C. The temperature coefficient of resistance of the metal thin film is as good as the temperature coefficient of resistance when a resistor pattern is printed on a ceramic substrate at a high temperature. For these reasons, in the present embodiment, the resistor pattern 25 formed by metal evaporation is used as the resistor pattern.

次に端子パターン29,29は、ニクロム下地の上に銅層と金層とを順番に蒸着によって形成して構成されている。なお端子パターン29,29は抵抗値の変化に直接影響を与えないので、導電ペーストの印刷焼成等の他の手段によって形成しても良い。   Next, the terminal patterns 29, 29 are formed by sequentially forming a copper layer and a gold layer on a nichrome base by vapor deposition. Since the terminal patterns 29, 29 do not directly affect the change in the resistance value, they may be formed by other means such as printing and firing of a conductive paste.

端子板70,70は略コ字状で金属板(例えば鉄板の表面に銅メッキした上で低融点金属メッキしたものや、ステンレス板等)製であり、絶縁基台端部12の上面、側面、下面を覆う寸法に形成されている。   The terminal plates 70, 70 have a substantially U-shape and are made of a metal plate (for example, a copper plate on the surface of an iron plate and a low melting point metal plate, or a stainless plate). It is formed so as to cover the lower surface.

次にこの電子部品用基板1−1の製造方法を説明する。まず図3に示すように貫通孔21を有し、その表面に物理的蒸着又は化学的蒸着による金属薄膜によって抵抗体パターン25と端子パターン29,29とを形成したフレキシブル回路基板20を用意する。このフレキシブル回路基板20は、その両側辺から連結部31,31が突出しており、これら連結部31,31によって同一の多数のフレキシブル回路基板20が並列に連結されている。   Next, a method of manufacturing the electronic component substrate 1-1 will be described. First, as shown in FIG. 3, a flexible circuit board 20 having a through-hole 21 on which a resistor pattern 25 and terminal patterns 29, 29 are formed by a metal thin film formed by physical vapor deposition or chemical vapor deposition is prepared. The flexible circuit board 20 has connecting portions 31, 31 projecting from both sides thereof, and the connecting portions 31, 31 connect the same many flexible circuit boards 20 in parallel.

次に連結部31,31によって連結された各フレキシブル回路基板20を図4に示すように、第一,第二金型41,45内にインサートする。このとき第一,第二金型41,45内には前記電子部品用基板1−1の外形形状と同一形状のキャビティーC1が形成されるが、フレキシブル回路基板20はその抵抗体パターン25形成面をキャビティーC1の第一金型41側の内平面C11に当接しておく。   Next, as shown in FIG. 4, the flexible circuit boards 20 connected by the connecting portions 31 are inserted into the first and second molds 41 and 45, respectively. At this time, a cavity C1 having the same shape as the outer shape of the electronic component substrate 1-1 is formed in the first and second molds 41 and 45, but the flexible circuit board 20 is formed with the resistor pattern 25 thereof. The surface is in contact with the inner plane C11 of the cavity C1 on the first mold 41 side.

そして第一金型41側に設けた二ヶ所の樹脂注入口(図1に示す矢印P1,P2及び図4に示すP1,P2)から加熱・溶融した合成樹脂(ナイロン、ポリフェニレンスルフイド等)を圧入・充填してキャビティーC1内を満たす。そして前記溶融合成樹脂が冷却・固化した後に、第一,第二金型41,45を取り外し、成形された絶縁基台10の両側から突出する連結部31,31の部分を切断する。   Then, synthetic resin (nylon, polyphenylene sulfide, etc.) heated and melted from two resin injection ports (arrows P1, P2 shown in FIG. 1 and P1, P2 shown in FIG. 4) provided on the first mold 41 side. To fill the cavity C1. After the molten synthetic resin has cooled and solidified, the first and second molds 41 and 45 are removed, and the portions of the connecting portions 31 and 31 protruding from both sides of the formed insulating base 10 are cut.

そして前記図1,図2に示す端子板70,70を、フレキシブル回路基板20の表面の端子パターン29,29を設けた面を覆うように接続して、この面と絶縁基台10下面の端子板収納凹部18,18の面及び絶縁基台10の外周側面を覆うように取り付ければ、図1,図2に示す端子パターン29と接続して絶縁基台端部12に取り付く端子板70を伴う電子部品用基板1−1が完成する。   Then, the terminal plates 70, 70 shown in FIGS. 1 and 2 are connected so as to cover the surface of the flexible circuit board 20 on which the terminal patterns 29, 29 are provided. If it is mounted so as to cover the surfaces of the plate storage recesses 18, 18 and the outer peripheral side surface of the insulating base 10, an electronic device with a terminal plate 70 connected to the terminal pattern 29 shown in FIGS. The component substrate 1-1 is completed.

即ち、本実施の形態にかかる電子部品用基板1−1は、合成樹脂フイルム上にその表面に摺動子が摺接する抵抗体パターン25とこの抵抗体パターン25に接続される端子パターン29,29とを設けてなるフレキシブル回路基板20と、金属板からなる端子板70,70と、電子部品用基板1−1の外形形状に形成されたキャビティーC1を有する第一,第二金型41,45とを用意し、前記第一,第二金型41,45のキャビティーC1内に前記フレキシブル回路基板20を収納し、その際前記フレキシブル回路基板20の抵抗体パターン25を設けた面をキャビティーC1内の一方の面C11(第一金型41面)に当接し、前記キャビティーC1内に溶融した成形樹脂を充填し、充填した成形樹脂が固化した後に第一,第二金型41,45を取り外すことで、成形樹脂からなる絶縁基台10にフレキシブル回路基板20をその抵抗体パターン25と端子パターン29,29とを露出するように取り付け、その後絶縁基台端部12に、前記フレキシブル回路基板20上に設けられた端子パターン29,29に接続するように端子板70,70を取り付けることで、製造される。   That is, in the electronic component substrate 1-1 according to the present embodiment, the resistor pattern 25 on which the slider slides on the surface of the synthetic resin film, and the terminal patterns 29, 29 connected to the resistor pattern 25. And the first and second molds 41 and 42 having the cavity C1 formed in the external shape of the electronic component substrate 1-1, the flexible circuit board 20 provided with 45, and the flexible circuit board 20 is housed in the cavity C1 of the first and second molds 41 and 45. At this time, the surface of the flexible circuit board 20 on which the resistor pattern 25 is provided is a cabinet. The first and second molds 41 are brought into contact with one surface C11 (the surface of the first mold 41) of the tee C1 and filled with the molten molding resin in the cavity C1, and the filled molding resin is solidified. , 5, the flexible circuit board 20 is attached to the insulating base 10 made of molding resin so that the resistor pattern 25 and the terminal patterns 29 and 29 are exposed, and then the flexible circuit board 20 is attached to the insulating base end 12. It is manufactured by attaching terminal plates 70, 70 so as to be connected to terminal patterns 29, 29 provided on the substrate 20.

なお前記端子板70と端子パターン29間は直接当接した機械的圧接力のみで接続しても良いし、導電性接着剤などを介して接続しても良い。なお端子板70の形状・取付構造はこの実施の形態に限定されず、要は端子パターン29と接続して絶縁基台10端部に取り付ける構造であれば、どのような構造であっても良い。   The terminal plate 70 and the terminal pattern 29 may be connected only by the mechanical contact force directly contacted, or may be connected via a conductive adhesive or the like. Note that the shape and mounting structure of the terminal plate 70 are not limited to this embodiment, that is, any structure may be used as long as it is connected to the terminal pattern 29 and mounted on the end of the insulating base 10. .

以上のようにして電子部品用基板1−1を製造すれば、フレキシブル回路基板20を絶縁基台10にインサート成形するので、その製造が容易に行え、低コスト化が図れる。また絶縁基台10を合成樹脂成形品で構成したので、その製造が容易で、セラミック基板に比べて材料費の低コスト化が図れ、厚みの薄型化も容易且つ安価に行える。また合成樹脂フイルムに多数組の抵抗体パターン25を同時に形成し、次に各組の抵抗体パターン25を設けたフレキシブル回路基板20にそれぞれ同時に絶縁基台10を成形した後、一体に連結したフレキシブル回路基板20をカットして個品化することができるので、電子部品用基板1−1を容易に大量生産でき、生産性が向上する。   When the electronic component substrate 1-1 is manufactured as described above, the flexible circuit board 20 is insert-molded on the insulating base 10, so that the manufacturing can be easily performed and the cost can be reduced. In addition, since the insulating base 10 is made of a synthetic resin molded product, its manufacture is easy, the material cost can be reduced as compared with the ceramic substrate, and the thickness can be reduced easily and inexpensively. Also, a plurality of sets of resistor patterns 25 are simultaneously formed on the synthetic resin film, and then the insulating bases 10 are simultaneously formed on the flexible circuit boards 20 on which the respective sets of resistor patterns 25 are provided. Since the circuit board 20 can be cut into individual products, the electronic component substrate 1-1 can be easily mass-produced, and the productivity is improved.

図5は上記電子部品用基板1−1を用いて構成した半固定可変抵抗器100−1を示す図であり、図5(a)は平面図、図5(b)は正面図、図5(c)は図5(a)のB−B断面図、図5(d)は裏面図である。同図に示すように半固定可変抵抗器100−1は、電子部品用基板1−1の上面に摺動子60を配置し、下面に集電板50を配置し、集電板50に設けた円筒状の筒状突起51を貫通孔11,21に貫通させ、さらに電子部品用基板1−1を貫通した筒状突起51の先端を摺動子60に設けた嵌挿孔61に貫通した上でその先端をかしめることで摺動子60を回動自在に取り付けて構成されている。ここで集電板50は電子部品用基板1−1の下面に設けた集電板収納凹部15に収納されている。そして摺動子60を回動すれば、摺動子60に設けられた摺動接点63が抵抗体パターン25(図2参照)の表面を摺接して端子板70,70と集電板50間の抵抗値を変化する。   5A and 5B are views showing a semi-fixed variable resistor 100-1 configured using the electronic component substrate 1-1, wherein FIG. 5A is a plan view, FIG. 5B is a front view, and FIG. FIG. 5C is a sectional view taken along line BB of FIG. 5A, and FIG. 5D is a rear view. As shown in the figure, the semi-fixed variable resistor 100-1 has the slider 60 disposed on the upper surface of the electronic component substrate 1-1, the current collector plate 50 disposed on the lower surface, and provided on the current collector plate 50. The cylindrical projection 51 is passed through the through holes 11 and 21, and the tip of the cylindrical projection 51 that has passed through the electronic component substrate 1-1 passes through a fitting hole 61 provided in the slider 60. The slider 60 is rotatably mounted by caulking the tip thereof. Here, the current collecting plate 50 is housed in the current collecting plate housing recess 15 provided on the lower surface of the electronic component substrate 1-1. When the slider 60 is rotated, the sliding contact 63 provided on the slider 60 is brought into sliding contact with the surface of the resistor pattern 25 (see FIG. 2) so that the terminal plates 70, 70 and the current collector plate 50 Change the resistance value of

上記半固定可変抵抗器100−1は各種電子部品を搭載した別の回路基板に取り付けられる。その際は別の回路基板に設けた回路パターンに前記端子板70,70を低融点金属等を用いた高温を伴う接続手段によって固定することとなるが、本発明においては端子板70,70を用いているので、別の回路基板への高温を伴う接続手段による固定が容易に行え、一方で端子パターン29やフレキシブル回路基板20の材質として熱に弱い材質のものを用いることができるようになる。また端子板70,70はフレキシブル回路基板20を絶縁基台10に挟持して固定する機械的固定手段を兼ねる。   The semi-fixed variable resistor 100-1 is mounted on another circuit board on which various electronic components are mounted. In this case, the terminal plates 70, 70 are fixed to a circuit pattern provided on another circuit board by a connecting means using a high melting point metal or the like and having a high temperature. In the present invention, the terminal plates 70, 70 are fixed. Since it is used, it can be easily fixed to another circuit board by connection means involving high temperature, and on the other hand, a material that is weak to heat can be used as the material of the terminal pattern 29 and the flexible circuit board 20. . The terminal plates 70 also serve as mechanical fixing means for holding and fixing the flexible circuit board 20 to the insulating base 10.

〔第二の実施の形態〕
図6は本発明の第二の実施の形態を用いて製造した電子部品用基板1−2を示す図であり、図6(a)は平面図、図6(b)は正面図、図6(c)は図6(a)のC−C断面図、図6(d)は裏面図である。同図に示す電子部品用基板1−2において前記電子部品用基板1−1と同一部分には同一符号を付してその詳細な説明は省略する。この電子部品用基板1−2においても、絶縁基台10の上面にフレキシブル回路基板20をインサート成形によって一体に取り付け、また端子板70,70を端子パターン29,29と接続するように絶縁基台端部12に取り付けている。抵抗体パターン25も物理的蒸着又は化学的蒸着による金属薄膜で構成されている。
[Second embodiment]
6A and 6B are views showing an electronic component substrate 1-2 manufactured using the second embodiment of the present invention. FIG. 6A is a plan view, FIG. 6B is a front view, and FIG. 6C is a cross-sectional view taken along the line CC of FIG. 6A, and FIG. 6D is a rear view. In the electronic component substrate 1-2 shown in the figure, the same portions as those of the electronic component substrate 1-1 are denoted by the same reference numerals, and the detailed description thereof will be omitted. Also in this electronic component substrate 1-2, the flexible circuit board 20 is integrally mounted on the upper surface of the insulating base 10 by insert molding, and the terminal bases 70, 70 are connected to the terminal patterns 29, 29 so that the insulating base ends are connected. It is attached to the part 12. The resistor pattern 25 is also formed of a metal thin film formed by physical vapor deposition or chemical vapor deposition.

この電子部品用基板1−2において前記電子部品用基板1−1と相違する点は、フレキシブル回路基板20の他に端子板70,70も絶縁基台10にインサート成形し、これによってこれら各部品を一体化した点である。即ちこの電子部品用基板1−2の製造方法は、図7に示すように、絶縁基台10成型用の第一,第二金型41,45のキャビティーC1内にフレキシブル回路基板20と端子板70,70とを予めインサートしておき、キャビティーC1内に樹脂注入口P1,P2(第一の実施の形態と同じ位置に設けてある)から溶融合成樹脂を圧入して冷却・固化することで、フレキシブル回路基板20と端子板70,70とを絶縁基台10にて一体成形した電子部品用基板1−2を製造する。   The difference between the electronic component substrate 1-2 and the electronic component substrate 1-1 is that, in addition to the flexible circuit board 20, the terminal plates 70, 70 are also insert-molded on the insulating base 10, whereby each of these components is formed. It is the point which integrated. That is, as shown in FIG. 7, the method for manufacturing the electronic component substrate 1-2 is such that the flexible circuit board 20 and the terminals are formed in the cavities C1 of the first and second molds 41 and 45 for molding the insulating base 10. The plates 70, 70 are inserted in advance, and the molten synthetic resin is pressed into the cavity C1 from the resin injection ports P1, P2 (provided at the same position as in the first embodiment) to cool and solidify. Thus, the electronic component substrate 1-2 in which the flexible circuit board 20 and the terminal plates 70, 70 are integrally formed on the insulating base 10 is manufactured.

即ち、電子部品用基板1−2は、合成樹脂フイルム上にその表面に摺動子が摺接する抵抗体パターン25とこの抵抗体パターン25に接続される端子パターン29,29とを設けてなるフレキシブル回路基板20と、金属板からなる端子板70,70と、電子部品用基板1−2の外形形状に形成されたキャビティーC1を有する第一,第二金型41,45とを用意し、前記第一,第二金型41,45のキャビティーC1内に前記フレキシブル回路基板20と端子板70,70とを収納し、その際前記フレキシブル回路基板20の抵抗体パターン25を設けた面をキャビティーC1内の一方の面C11(第一金型41面)に当接すると同時に、端子板70,70の一部をフレキシブル回路基板20の端子パターン29,29に当接又は対向させておき、前記キャビティーC1内に溶融した成形樹脂を充填し、充填した成形樹脂が固化した後に第一,第二金型41,45を取り外すことで、製造される。   That is, the electronic component substrate 1-2 is formed by providing a resistor pattern 25 on a surface of which a slider slides and a terminal pattern 29 connected to the resistor pattern 25 on a synthetic resin film. A circuit board 20, terminal plates 70 and 70 made of a metal plate, and first and second molds 41 and 45 having a cavity C1 formed in the outer shape of the electronic component substrate 1-2 are prepared. The flexible circuit board 20 and the terminal plates 70, 70 are accommodated in the cavities C1 of the first and second molds 41, 45. At this time, the surface of the flexible circuit board 20 on which the resistor pattern 25 is provided is removed. At the same time that it contacts one surface C11 (the first mold 41 surface) in the cavity C1, a part of the terminal plates 70, 70 abuts or faces the terminal patterns 29, 29 of the flexible circuit board 20. Place, filled with a molding resin which is melted in the cavity in the C1, first after filled molded resin is solidified, by removing the second mold 41 and 45, is manufactured.

なお第一金型41の端子板70の上部の位置には、キャビティーC1の一部を構成するキャビティーC12が設けられており、キャビティーC12内には、絶縁基台10を成形する際にキャビティーC1,C2内に圧入する溶融成形樹脂によって端子板70,70が位置ずれを起こさないように端子板70,70をその後側から支える突起状の当接部42が設けられている。そしてこのキャビティーC12によって、図6に示す、端子板70,70の上面を覆う絶縁基台10と同じ合成樹脂からなる端子板押え部19が形成され、端子板70,70の絶縁基台10への固定の確実化と、端子板70,70の端子パターン29,29への接続の確実化とを図っている。なおフレキシブル回路基板20の両端子パターン29,29の間の部分には、絶縁基台10と端子板押え部19間を一体に連結するための開口23が設けられている。また端子板押え部19に形成されている二つの穴191,191は、前記第一金型41のキャビティーC12内に設けられた当接部42によって形成される穴である。   A cavity C12 that constitutes a part of the cavity C1 is provided at a position above the terminal plate 70 of the first mold 41. In the cavity C12, when the insulating base 10 is molded. In order to prevent the terminal plates 70, 70 from being displaced by the melt-molded resin press-fitted into the cavities C1, C2, a protruding abutting portion 42 for supporting the terminal plates 70, 70 from behind is provided. The cavity C12 forms a terminal plate holding portion 19 made of the same synthetic resin as the insulating base 10 covering the upper surfaces of the terminal plates 70, 70 shown in FIG. 6, and the insulating base 10 of the terminal plates 70, 70 is formed. This secures the fixing to the terminal patterns 70, 70 and the connection to the terminal patterns 29, 29. An opening 23 for integrally connecting the insulating base 10 and the terminal plate holding portion 19 is provided in a portion between the two terminal patterns 29, 29 of the flexible circuit board 20. The two holes 191 and 191 formed in the terminal plate holding portion 19 are holes formed by the contact portion 42 provided in the cavity C12 of the first mold 41.

このようにフレキシブル回路基板20ばかりか端子板70,70をも絶縁基台10にインサート成形することとすれば、別途端子板70,70の絶縁基台10への取付工程が不要になり、また端子板70,70の絶縁基台10への固定と端子板70,70の端子パターン29,29への電気的接続とを容易に確実に行うことができる。また絶縁基台10を合成樹脂成形品で構成したので、その製造が容易で、セラミック基板に比べて材料費の低コスト化が図れ、厚みの薄型化も容易且つ安価に行える。なお端子板押え部19は必ずしも必要なく、省略しても良い。   If not only the flexible circuit board 20 but also the terminal plates 70, 70 are insert-molded on the insulating base 10, a separate attaching process of the terminal plates 70, 70 to the insulating base 10 becomes unnecessary, and The fixing of the terminal plates 70, 70 to the insulating base 10 and the electrical connection of the terminal plates 70, 70 to the terminal patterns 29, 29 can be easily and reliably performed. In addition, since the insulating base 10 is made of a synthetic resin molded product, its manufacture is easy, the material cost can be reduced as compared with the ceramic substrate, and the thickness can be reduced easily and inexpensively. Note that the terminal plate holding portion 19 is not always necessary and may be omitted.

〔第三の実施の形態〕
図8は本発明の第三の実施の形態を用いて製造した電子部品用基板1−3を示す図であり、図8(a)は平面図、図8(b)は正面図、図8(c)は図8(a)のD−D断面図、図8(d)は裏面図である。同図に示す電子部品用基板1−3において前記電子部品用基板1−1と同一部分には同一符号を付してその詳細な説明は省略する。この電子部品用基板1−3においても、絶縁基台10の上面にフレキシブル回路基板20がインサート成形によって一体に取り付けられると共に、端子板70,70がフレキシブル回路基板20上に設けた端子パターン29,29に接続された状態で絶縁基台端部(端辺)12に取り付けられている。
[Third embodiment]
8A and 8B are views showing an electronic component substrate 1-3 manufactured using the third embodiment of the present invention. FIG. 8A is a plan view, FIG. 8B is a front view, and FIG. FIG. 8C is a cross-sectional view taken along line DD of FIG. 8A, and FIG. 8D is a rear view. In the electronic component substrate 1-3 shown in the figure, the same parts as those of the electronic component substrate 1-1 are denoted by the same reference numerals, and detailed description thereof will be omitted. Also in this electronic component substrate 1-3, the flexible circuit board 20 is integrally attached to the upper surface of the insulating base 10 by insert molding, and the terminal plates 70, 70 are provided with the terminal patterns 29, It is attached to the insulating base end (end side) 12 while being connected to 29.

この電子部品用基板1−3において前記電子部品用基板1−1と相違する点は、前記電子部品用基板1−1に更に、集電板50−3を絶縁基台10の内部に一体成形した点である。ここで集電板50−3は、金属板を略矩形状に形成してなる基部53−3の中央に、電子部品用基板1−3の抵抗体パターン25を設けた面側に突出する筒状突起51−3を設け、また基部53−3の外周の一辺から外方に向けて略矩形状に突出し且つ二回略直角に屈曲することで電子部品用基板1−3の抵抗体パターン25を設けた面と反対側の面に露出する接続部55−3を設けて構成されている。接続部55−3の先端は三分割され、その中央の部分が電子部品用基板1−3の抵抗体パターン25を設けた面側に略直角に折り曲げられている。そしてこの電子部品用基板1−3においては、集電板50−3を、その筒状突起51−3が絶縁基台10の貫通孔11(同時にフレキシブル回路基板20の貫通孔21)の中(中央)に位置するように絶縁基台10の内部にインサート成形によって埋め込んでいる。このとき接続部55−3の下面は前述のように絶縁基台10の下面に露出している。筒状突起51−3はフレキシブル回路基板20の上面側に突出している。このように構成すれば、絶縁基台10を成形する際に、絶縁基台10とフレキシブル回路基板20と集電板50−3とが同時に一体化できるので、製造工程の簡略化が図れる。   The difference between the electronic component substrate 1-3 and the electronic component substrate 1-1 is that the current collecting plate 50-3 is further integrally formed inside the insulating base 10 on the electronic component substrate 1-1. It is a point that did. Here, the current collecting plate 50-3 is a tube projecting toward the surface of the electronic component substrate 1-3 on which the resistor pattern 25 is provided, in the center of a base 53-3 formed by forming a metal plate into a substantially rectangular shape. The protruding portion 51-3 is provided, and protrudes outward from one side of the outer periphery of the base portion 53-3 in a substantially rectangular shape, and is bent twice at substantially right angles to form the resistor pattern 25 of the electronic component substrate 1-3. The connecting portion 55-3 is provided to be exposed on the surface opposite to the surface on which the is provided. The distal end of the connection part 55-3 is divided into three parts, and the center part thereof is bent substantially at right angles to the surface on which the resistor pattern 25 of the electronic component substrate 1-3 is provided. In the electronic component substrate 1-3, the current collector plate 50-3 is disposed such that the cylindrical projections 51-3 are formed in the through holes 11 of the insulating base 10 (at the same time, the through holes 21 of the flexible circuit board 20). It is embedded by insert molding inside the insulating base 10 so as to be located at the (center). At this time, the lower surface of the connection portion 55-3 is exposed on the lower surface of the insulating base 10 as described above. The cylindrical projection 51-3 protrudes on the upper surface side of the flexible circuit board 20. With this configuration, when the insulating base 10 is formed, the insulating base 10, the flexible circuit board 20, and the current collector 50-3 can be simultaneously integrated, so that the manufacturing process can be simplified.

次にこの電子部品用基板1−3の製造方法を説明する。まず図3に示すと同様の貫通孔21を有し、その表面に物理的蒸着又は化学的蒸着による金属薄膜によって抵抗体パターン25と端子パターン29,29とを形成したフレキシブル回路基板20と、図8に示す集電板50−3とを用意する。このフレキシブル回路基板20は前述のように、その両側辺から連結部31,31が突出しており、これら連結部31,31によって同一の多数のフレキシブル回路基板20が並列に連結されている。また集電板50−3も接続部55−3の先端部分が図示しない連結部材に連結されることで、同一の多数の集電板50−3が並列に連結されている。   Next, a method of manufacturing the electronic component substrate 1-3 will be described. First, a flexible circuit board 20 having a through hole 21 similar to that shown in FIG. 3 and having a resistor pattern 25 and terminal patterns 29, 29 formed on its surface by a metal thin film formed by physical vapor deposition or chemical vapor deposition, A current collector 50-3 shown in FIG. 8 is prepared. As described above, this flexible circuit board 20 has connecting portions 31 protruding from both sides thereof, and the connecting portions 31 connect a large number of the same flexible circuit boards 20 in parallel. The same number of current collectors 50-3 are also connected in parallel by connecting the tip of the connection part 55-3 to a connection member (not shown).

次に連結部31,31によって連結された各フレキシブル回路基板20と連結部材によって連結された各集電板50−3とを図9に示すように、第一,第二金型41,45内にインサートする。このとき第一,第二金型41,45内には前記電子部品用基板1−3の外形形状と同一形状のキャビティーC1が形成されるが、フレキシブル回路基板20はその抵抗体パターン25形成面をキャビティーC1の第一金型41側の内平面C11に当接しておく。即ち第一,第二金型41,45のキャビティーC1内にフレキシブル回路基板20を収納し、その際フレキシブル回路基板20の抵抗体パターン25を設けた面をキャビティーC1内の一方の面C11に当接した状態とする。同時に集電板50−3はその基部53−3の部分が第一,第二金型41,45によって挟持されると同時に筒状突起51−3内には両金型41,45からなる凸部が挿入され、さらに接続部55−3の下面が第二金型45の表面に密着する。   Next, as shown in FIG. 9, the flexible circuit boards 20 connected by the connecting portions 31 and the current collector plates 50-3 connected by the connecting members are placed in the first and second molds 41 and 45, respectively. Insert into At this time, a cavity C1 having the same shape as the outer shape of the electronic component substrate 1-3 is formed in the first and second molds 41 and 45, but the flexible circuit board 20 is formed with the resistor pattern 25 thereof. The surface is in contact with the inner plane C11 of the cavity C1 on the first mold 41 side. That is, the flexible circuit board 20 is housed in the cavity C1 of the first and second molds 41 and 45, and at this time, the surface on which the resistor pattern 25 of the flexible circuit board 20 is provided is one surface C11 in the cavity C1. In contact with. At the same time, the base plate 53-3 of the current collector plate 50-3 is clamped by the first and second molds 41 and 45, and at the same time, the projection formed by the two molds 41 and 45 is formed in the cylindrical projection 51-3. The part is inserted, and the lower surface of the connection part 55-3 further comes into close contact with the surface of the second mold 45.

そしてキャビティーC1の第一金型41側に設けた二か所の樹脂注入口P1,P2(図1と同じ位置)から加熱・溶融した合成樹脂(ナイロン、ポリフェニレンスルフイド等)を圧入・充填してキャビティーC1内を満たす。そしてこの溶融樹脂の圧入圧力によりフレキシブル回路基板20は第一金型C1の内平面C11に押し付けられ、その状態のまま冷却・固化される。そして第一,第二金型41,45を取り外し、成形された絶縁基台10の両側から突出する連結部31,31の部分及び突出する集電板50−3の接続部55−3の先端部分を切断すれば、図8に示す電子部品用基板1−3が完成する。なお絶縁基台10の中央には貫通孔11が設けられ、その外周のフレキシブル回路基板20には馬蹄形の抵抗体パターン25が設けられ、その両端には端子パターン29,29が設けられている。さらに集電板50−3は一体に絶縁基台10に埋め込まれて構成され、絶縁基台10に設けられた貫通孔11には集電板50−3の筒状突起51−3を絶縁基台10の上面を超えて突出させ、さらに基部53−3は絶縁基台10内に埋め込まれ、接続部55−3は絶縁基台10の下面(つまり上面に露出している端子パターン29,29に対向した一外周側面側の下面)に露出している。   Then, synthetic resin (nylon, polyphenylene sulfide, etc.) heated and melted from two resin injection ports P1 and P2 (same positions as in FIG. 1) provided on the first mold 41 side of the cavity C1. Fill to fill the cavity C1. Then, the flexible circuit board 20 is pressed against the inner plane C11 of the first mold C1 by the press-fitting pressure of the molten resin, and is cooled and solidified in that state. Then, the first and second molds 41 and 45 are removed, and the connecting portions 31 and 31 projecting from both sides of the molded insulating base 10 and the tip of the connecting portion 55-3 of the projecting current collector plate 50-3. By cutting the portion, the electronic component substrate 1-3 shown in FIG. 8 is completed. A through hole 11 is provided at the center of the insulating base 10, a horseshoe-shaped resistor pattern 25 is provided on a flexible circuit board 20 on the outer periphery thereof, and terminal patterns 29, 29 are provided at both ends thereof. Further, the current collecting plate 50-3 is integrally embedded in the insulating base 10, and a through-hole 11 provided in the insulating base 10 is provided with a cylindrical projection 51-3 of the current collecting plate 50-3. The base 53-3 is embedded in the insulating base 10, and the connecting portion 55-3 is connected to the lower surface of the insulating base 10 (that is, the terminal patterns 29, 29 exposed on the upper surface). (The lower surface on the outer peripheral side facing the surface).

そして図8に示す端子板70,70を、フレキシブル回路基板20の表面の端子パターン29,29を設けた面を覆うように接続して、この面と絶縁基台10下面の端子板収納凹部18,18の面及び絶縁基台10の外周側面を覆うように取り付ければ、図8に示す端子パターン29と接続して絶縁基台端部12に取り付く端子板70を伴う電子部品用基板1−3が完成する。   Then, the terminal plates 70, 70 shown in FIG. 8 are connected so as to cover the surface of the flexible circuit board 20 on which the terminal patterns 29, 29 are provided. , 18 and the outer peripheral side surface of the insulating base 10, the electronic component substrate 1-3 with the terminal plate 70 connected to the terminal pattern 29 shown in FIG. Complete.

即ち本実施の形態にかかる電子部品用基板1−3の製造は、合成樹脂フイルム上にその表面に摺動子が摺接する抵抗体パターン25とこの抵抗体パターン25に接続される端子パターン29,29とを設けてなるフレキシブル回路基板20と、金属板からなる集電板50−3と、電子部品用基板1−3の外形形状に形成されたキャビティーC1を有する第一,第二金型41,45とを用意し、前記第一,第二金型41,45のキャビティーC1内に前記フレキシブル回路基板20と集電板50−3とを収納し、その際前記フレキシブル回路基板20の抵抗体パターン25を設けた面をキャビティーC1内の一方の面C11(第一金型41面)に当接し、前記キャビティーC1内に溶融した成形樹脂を充填し、充填した成形樹脂が固化した後に第一,第二金型41,45を取り外すことで、成形樹脂からなる絶縁基台10にフレキシブル回路基板20をその抵抗体パターン25と端子パターン29,29とが露出するように取り付けると同時に、集電板50−3を埋め込み、その後絶縁基台端部12に、前記フレキシブル回路基板20上に設けられた端子パターン29,29に接続するように金属板製の端子板70,70を取り付けることで行われる。   That is, the manufacture of the electronic component substrate 1-3 according to the present embodiment is performed by forming the resistor pattern 25 in which the slider slides on the surface of the synthetic resin film, the terminal pattern 29 connected to the resistor pattern 25, 29, a current collecting plate 50-3 made of a metal plate, and first and second molds having a cavity C1 formed in the outer shape of the electronic component substrate 1-3. 41, 45, and the flexible circuit board 20 and the current collector 50-3 are accommodated in the cavity C1 of the first and second molds 41, 45. The surface on which the resistor pattern 25 is provided abuts against one surface C11 (the first mold 41 surface) in the cavity C1, and the cavity C1 is filled with a molten molding resin, and the filled molding resin is solidified. After By removing the first and second molds 41 and 45, the flexible circuit board 20 is attached to the insulating base 10 made of a molding resin so that the resistor patterns 25 and the terminal patterns 29 and 29 are exposed, and at the same time, the collecting is performed. The electric board 50-3 is embedded, and then the metal base plate 70 is attached to the insulating base end 12 so as to be connected to the terminal patterns 29 provided on the flexible circuit board 20. Is

このようにして電子部品用基板1−3を製造すれば、フレキシブル回路基板20と集電板50−3とを絶縁基台10にインサート成形するので、別途集電板50−3の絶縁基台10への取付工程が不要になり、金属板製の集電板50−3を取り付けた構造の電子部品用基板1−3の製造が容易に行え、低コスト化が図れる。また絶縁基台10を合成樹脂成形品で構成したので、その製造が容易で、セラミック基板に比べて材料費の低コスト化が図れ、厚みの薄型化も容易且つ安価に行える。   When the electronic component substrate 1-3 is manufactured in this manner, the flexible circuit board 20 and the current collecting plate 50-3 are insert-molded on the insulating base 10, so that the insulating base of the current collecting plate 50-3 is separately provided. This eliminates the need for the step of attaching the electronic component 10 to the electronic component 10, thereby facilitating the manufacture of the electronic component substrate 1-3 having the structure in which the current collecting plate 50-3 made of a metal plate is attached, and reducing the cost. In addition, since the insulating base 10 is made of a synthetic resin molded product, its manufacture is easy, the material cost can be reduced as compared with the ceramic substrate, and the thickness can be reduced easily and inexpensively.

ところで第三の実施の形態の変形例として、さらに図10に示すように、第一,第二金型41,45内に、フレキシブル回路基板20と集電板50−3の他に更に、前記第二の実施の形態と同様に、端子板70,70をもインサートしてもよい。即ち図10に示すように、電子部品用基板1−3´(図示は省略)成型用の第一,第二金型41,45のキャビティーC1内にフレキシブル回路基板20と集電板50−3と端子板70,70とを予めインサートしておき、キャビティーC1内に樹脂注入口P1,P2(第一の実施の形態と同じ位置に設けてある)から溶融合成樹脂を圧入して冷却・固化することで、フレキシブル回路基板20と集電板50−3と端子板70,70とを絶縁基台10にて一体成形した電子部品用基板1−3´を製造してもよい。   By the way, as a modified example of the third embodiment, as shown in FIG. 10, in addition to the flexible circuit board 20 and the current collecting plate 50-3, Similarly to the second embodiment, the terminal plates 70, 70 may be inserted. That is, as shown in FIG. 10, the flexible circuit board 20 and the current collector 50- are provided in the cavities C1 of the first and second molds 41 and 45 for molding the electronic component substrate 1-3 '(not shown). 3 and the terminal plates 70, 70 are inserted in advance, and the molten synthetic resin is pressed into the cavity C1 from the resin injection ports P1, P2 (provided at the same position as in the first embodiment) and cooled. By solidifying, the electronic component substrate 1-3 ′ in which the flexible circuit board 20, the current collecting plate 50-3, and the terminal plates 70, 70 are integrally formed on the insulating base 10 may be manufactured.

即ち、電子部品用基板1−3´は、合成樹脂フイルム上にその表面に摺動子が摺接する抵抗体パターン25とこの抵抗体パターン25に接続される端子パターン29,29とを設けてなるフレキシブル回路基板20と、金属板からなる集電板50−3と、金属板からなる端子板70,70と、電子部品用基板1−3´の外形形状に形成されたキャビティーC1を有する第一,第二金型41,45とを用意し、前記第一,第二金型41,45のキャビティーC1内に前記フレキシブル回路基板20と集電板50−3と端子板70,70とを収納し、その際前記フレキシブル回路基板20の抵抗体パターン25を設けた面をキャビティーC1内の一方の面C11(第一金型41面)に当接すると同時に、端子板70,70の一部をフレキシブル回路基板20の端子パターン29,29に当接又は対向させておき、前記キャビティーC1内に溶融した成形樹脂を充填し、充填した成形樹脂が固化した後に第一,第二金型41,45を取り外すことで製造される。   That is, the electronic component substrate 1-3 'is provided with a resistor pattern 25 on the surface of which a slider slides and a terminal pattern 29, 29 connected to the resistor pattern 25, on a synthetic resin film. A flexible circuit board 20, a current collecting plate 50-3 made of a metal plate, terminal plates 70 and 70 made of a metal plate, and a cavity C1 formed in the outer shape of the electronic component substrate 1-3 '. First and second molds 41 and 45 are prepared, and the flexible circuit board 20, the current collecting plate 50-3, the terminal plates 70 and 70 are placed in the cavity C1 of the first and second molds 41 and 45. At this time, the surface of the flexible circuit board 20 on which the resistor pattern 25 is provided is brought into contact with one surface C11 (the first mold 41 surface) in the cavity C1, and at the same time, the terminal plates 70, 70 Partly flexible circuit The first and second molds 41 and 45 are filled with the molten molding resin in the cavity C1 after the cavity C1 is in contact with or opposed to the terminal patterns 29 and 29 of the substrate 20, and the filled molding resin is solidified. Manufactured by removing.

このようにして電子部品用基板1−3´を製造すれば、フレキシブル回路基板20と集電板50−3と端子板70,70とを絶縁基台10にインサート成形するので、別途集電板50−3の絶縁基台10への取付工程や、端子板70,70の絶縁基台10への取付工程が不要になり、金属板製の集電板50−3と端子板70,70とを取り付ける構造の電子部品用基板1−3´の製造が容易に行え、低コスト化が図れる。また絶縁基台10を合成樹脂成形品で構成したので、その製造が容易で、セラミック基板に比べて材料費の低コスト化が図れ、厚みの薄型化も容易且つ安価に行える。   When the electronic component substrate 1-3 'is manufactured in this manner, the flexible circuit board 20, the current collector plate 50-3, and the terminal plates 70, 70 are insert-molded on the insulating base 10, so that the current collector plate is separately provided. The step of attaching 50-3 to the insulating base 10 and the step of attaching the terminal plates 70, 70 to the insulating base 10 become unnecessary, and the current collector 50-3 made of a metal plate and the terminal plates 70, 70 become unnecessary. The electronic component substrate 1-3 'having a structure for mounting the electronic component can be easily manufactured, and the cost can be reduced. In addition, since the insulating base 10 is made of a synthetic resin molded product, its manufacture is easy, the material cost can be reduced as compared with the ceramic substrate, and the thickness can be reduced easily and inexpensively.

なお第一金型41の端子板70の上部の位置には、キャビティーC1の一部を構成するキャビティーC12が設けられており、キャビティーC12内には、絶縁基台10を成形する際にキャビティーC1,C12内に圧入する溶融成形樹脂によって端子板70,70が位置ずれを起こさないように端子板70,70をその後側から支える突起状の当接部42が設けられている点も、前記第二の実施の形態と同様である。   A cavity C12 that constitutes a part of the cavity C1 is provided at a position above the terminal plate 70 of the first mold 41. In the cavity C12, when the insulating base 10 is molded. And a protrusion-shaped contact portion 42 that supports the terminal plates 70, 70 from the rear side so that the terminal plates 70, 70 are not displaced by the molten molding resin pressed into the cavities C1, C12. This is the same as in the second embodiment.

また端子板70,70と集電板50−3とを絶縁基台10にインサート成形する場合は、これらを同一の金属板に連結部で連結した状態で同時に形成しておいて金型内に収納して絶縁基台10を成形し、その後連結部を切り離すようにすれば、さらに実質的な部品点数の削減と製造工程の簡素化とが図れる。   When the terminal plates 70, 70 and the current collecting plate 50-3 are insert-molded on the insulating base 10, they are simultaneously formed in a state where they are connected to the same metal plate at the connecting portions, and are inserted into a mold. If the insulating base 10 is housed and molded, and then the connecting portion is cut off, the number of parts can be further reduced and the manufacturing process can be simplified.

図11は上記電子部品用基板1−3を用いて構成した半固定可変抵抗器100−3を示す図であり、図11(a)は平面図、図11(b)は正面図、図11(c)は図11(a)のE−E断面図、図11(d)は裏面図である。同図に示すように半固定可変抵抗器100−3は、電子部品用基板1−3の上面に摺動子60を配置する際に集電板50−3に設けた筒状突起51−3を摺動子60に設けた嵌挿孔61に貫通し、その先端をかしめることで摺動子60を回動自在に取り付けて構成されている。そして摺動子60を回動すれば、摺動子60に設けられている摺動接点63が抵抗体パターン25(図8参照)の表面を摺接して端子板70,70と集電板50−3間の抵抗値を変化する。   FIG. 11 is a diagram showing a semi-fixed variable resistor 100-3 configured using the electronic component substrate 1-3, wherein FIG. 11 (a) is a plan view, FIG. 11 (b) is a front view, and FIG. FIG. 11C is a sectional view taken along the line EE of FIG. 11A, and FIG. 11D is a rear view. As shown in the drawing, the semi-fixed variable resistor 100-3 is a cylindrical projection 51-3 provided on the current collecting plate 50-3 when the slider 60 is arranged on the upper surface of the electronic component substrate 1-3. Is penetrated into a fitting hole 61 provided in the slider 60, and the slider 60 is rotatably mounted by caulking the tip. When the slider 60 is rotated, the sliding contact 63 provided on the slider 60 slides on the surface of the resistor pattern 25 (see FIG. 8), and the terminal plates 70, 70 and the current collector 50 −3 is changed.

〔第四の実施の形態〕
また上記各実施の形態ではフレキシブル回路基板20の端子パターン29,29を設けた部分を絶縁基台10の上面だけに配置したが、図12に示す電子部品用基板1−4のように、フレキシブル回路基板20の端子パターン29,29(図12には明示せず)を設けた側の端部201を絶縁基台10の上面から外周側辺を介してその下面側に折り返し、折り返したフレキシブル回路基板20の個所を覆うように端子板70,70を取り付けても良い。この場合も、フレキシブル回路基板20又はフレキシブル回路基板20及び端子板70,70を、金型内にインサートして絶縁基台10と一体に成形する。なおこの場合、端子パターン29,29はフレキシブル回路基板20の上面だけに設けても良いし、さらにその外周側辺及び/又はその下面にわたって設けても良い。
[Fourth embodiment]
In each of the above embodiments, the portion of the flexible circuit board 20 where the terminal patterns 29, 29 are provided is arranged only on the upper surface of the insulating base 10. However, as in the electronic component substrate 1-4 shown in FIG. The end 201 of the circuit board 20 on the side where the terminal patterns 29, 29 (not shown in FIG. 12) are provided is folded from the upper surface of the insulating base 10 to the lower surface thereof via the outer peripheral side, and the folded flexible circuit is formed. The terminal plates 70 may be attached so as to cover the portion of the substrate 20. Also in this case, the flexible circuit board 20 or the flexible circuit board 20 and the terminal plates 70, 70 are inserted into a mold and molded integrally with the insulating base 10. In this case, the terminal patterns 29, 29 may be provided only on the upper surface of the flexible circuit board 20, or may be provided on the outer peripheral side and / or the lower surface thereof.

〔第五の実施の形態〕
図13,図14は本発明の第五の実施の形態にかかる電子部品用基板1−5を示す図であり、図13(a)は上側から見た斜視図、図13(b)は下側から見た斜視図、図14(a)は平面図、図14(b)は正面図、図14(c)は図14(a)のE−E断面図、図14(d)は裏面図、図14(e)は図14(a)のF−F断面図である。同図に示す電子部品用基板1−5において前記電子部品用基板1−1,1−2,1−3,1−4と同一部分には同一符号を付してその詳細な説明は省略する。この電子部品用基板1−5においても、絶縁基台10の上面にフレキシブル回路基板20をインサート成形によって一体に取り付けて構成しており、またフレキシブル回路基板20上に形成される抵抗体パターン25は物理的蒸着又は化学的蒸着による金属薄膜によって構成されている。なおこの電子部品用基板1−5を構成する各部材の材質及びその製造方法は、上記第一乃至第四の実施の形態の対応する各部材の材質及びその製造方法と同じである。
[Fifth embodiment]
13 and 14 are views showing an electronic component substrate 1-5 according to a fifth embodiment of the present invention, wherein FIG. 13 (a) is a perspective view seen from above, and FIG. 13 (b) is lower. 14 (a) is a plan view, FIG. 14 (b) is a front view, FIG. 14 (c) is an EE sectional view of FIG. 14 (a), and FIG. 14 (d) is a back view. FIG. 14E is a cross-sectional view taken along line FF of FIG. In the electronic component substrate 1-5 shown in the figure, the same parts as those of the electronic component substrates 1-1, 1-2, 1-3 and 1-4 are denoted by the same reference numerals, and detailed description thereof will be omitted. . Also in this electronic component substrate 1-5, the flexible circuit board 20 is integrally mounted on the upper surface of the insulating base 10 by insert molding, and the resistor pattern 25 formed on the flexible circuit board 20 is It is composed of a metal thin film formed by physical vapor deposition or chemical vapor deposition. The material of each member constituting the electronic component substrate 1-5 and the method of manufacturing the same are the same as the material of the corresponding member of the first to fourth embodiments and the method of manufacturing the same.

そしてこの実施の形態においても絶縁基台10は略矩形状で板状の合成樹脂成形品であり、前記電子部品用基板1−3と同様に、集電板50−5を絶縁基台10の内部に一体にインサート成形している。集電板50−5は筒状突起51−5を設けた基部53−5の一辺から外方に向けて略矩形状の接続部55−5を突出して構成されている。筒状突起51−5は絶縁基台10に設けた筒状突起51−5の外径よりも大きい内径の貫通孔11の中(中央)に位置するように絶縁基台10内に設置されており、このとき接続部55−5の下面は絶縁基台10の下面に露出している。また筒状突起51−5はフレキシブル回路基板20の上面側に突出している。このように構成すれば、第三の実施の形態と同様に、絶縁基台10とフレキシブル回路基板20と集電板50−5とが同時に一体化できるので、製造工程の簡略化が図れる。   Also in this embodiment, the insulating base 10 is a substantially rectangular plate-like synthetic resin molded product, and the current collecting plate 50-5 is connected to the insulating base 10 in the same manner as the electronic component substrate 1-3. It is integrally insert molded inside. The current collector plate 50-5 is configured by projecting a substantially rectangular connecting portion 55-5 outward from one side of the base 53-5 provided with the cylindrical projection 51-5. The cylindrical protrusion 51-5 is installed in the insulating base 10 so as to be located (centered) in the through hole 11 having an inner diameter larger than the outer diameter of the cylindrical protrusion 51-5 provided on the insulating base 10. At this time, the lower surface of the connection portion 55-5 is exposed on the lower surface of the insulating base 10. The cylindrical protrusion 51-5 protrudes toward the upper surface of the flexible circuit board 20. With this configuration, as in the third embodiment, the insulating base 10, the flexible circuit board 20, and the current collector plate 50-5 can be simultaneously integrated, so that the manufacturing process can be simplified.

次にフレキシブル回路基板20は図15で示すような略矩形状(幅は絶縁基台10の幅と略同一、長さは絶縁基台10の長さより所定寸法長い形状)の熱可塑性の合成樹脂フイルムの中央の前記貫通孔11に対応する位置にこれと同一内径の貫通孔21を設け、またその表面の貫通孔21の外周に馬蹄形状の導体パターン(以下この実施の形態では「抵抗体パターン」という)25を設け、さらに抵抗体パターン25の端部(25e,25e)に長さ方向(A)に沿う略矩形状の端子パターン29,29を接続して設けて構成されている。フレキシブル回路基板20はその端子パターン29,29を設けた側の辺を図14に示すように絶縁基台10の上面から外周側辺を介してその下面に折り返し、これによってフレキシブル回路基板20は絶縁基台10の上面と外周側面と下面にその表面が露出するように折り曲げられた状態で絶縁基台10に取り付けられる。従って抵抗体パターン25は絶縁基台10の上面に、端子パターン29,29は絶縁基台10の上面と外周側辺から下面にわたって露出している。   Next, the flexible circuit board 20 has a substantially rectangular shape (the width is substantially the same as the width of the insulating base 10 and the length is a predetermined length longer than the length of the insulating base 10) as shown in FIG. A through-hole 21 having the same inner diameter as the through-hole 11 is provided at a position corresponding to the through-hole 11 in the center of the film, and a horseshoe-shaped conductor pattern (hereinafter referred to as a "resistor pattern" ”), And terminal portions 29 (29) of a substantially rectangular shape along the length direction (A) are connected to end portions (25e, 25e) of the resistor pattern 25. The side of the flexible circuit board 20 on which the terminal patterns 29 and 29 are provided is folded from the upper surface of the insulating base 10 to the lower surface via the outer peripheral side as shown in FIG. The base 10 is attached to the insulating base 10 in a state where the base 10 is bent so as to expose the upper surface, the outer peripheral side surface, and the lower surface. Therefore, the resistor pattern 25 is exposed on the upper surface of the insulating base 10, and the terminal patterns 29, 29 are exposed from the upper surface of the insulating base 10 and the outer peripheral side to the lower surface.

そしてこの電子部品用基板1−5においては、フレキシブル回路基板20の抵抗体パターン25の外側にある長さ方向(A)の一辺の端部(抵抗体パターン25側)となる端辺71を覆う円弧形状を有する押え部17a(但し抵抗体パターン25を覆ってはいない)と、フレキシブル回路基板20の抵抗体パターン25の端部(25e,25e)の外周近傍の部分に二つの端子パターン29,29を覆う円弧形状を有する押え部17bと、絶縁基台10の下面に配置されたフレキシブル回路基板20の端子パターン29,29を設けた側の端辺73を覆う絶縁基台10の下面と同一面の平板状の押え部17cとを、それぞれ絶縁基台10と一体にインサート成形樹脂で設け、これによってフレキシブル回路基板20を絶縁基台10に強固に固定している。   In the electronic component substrate 1-5, an end 71 which is an end of one side in the length direction (A) (side of the resistor pattern 25) outside the resistor pattern 25 of the flexible circuit board 20 is covered. A holding portion 17a having an arc shape (however, it does not cover the resistor pattern 25) and two terminal patterns 29, are provided at a portion near the outer periphery of the ends (25e, 25e) of the resistor pattern 25 of the flexible circuit board 20. 29 is the same as the lower surface of the insulating base 10 covering the end 73 on the side where the terminal patterns 29, 29 of the flexible circuit board 20 provided on the lower surface of the insulating base 10 are provided. A flat plate-like holding portion 17c is provided integrally with the insulating base 10 by insert molding resin, whereby the flexible circuit board 20 is firmly fixed to the insulating base 10. It is.

フレキシブル回路基板20の端辺71は、抵抗体パターン25の円弧形状に合わせて円弧状に形成されており、押え部17aもこの円弧形状に合わせて円弧状に形成されている。   The end 71 of the flexible circuit board 20 is formed in an arc shape in accordance with the arc shape of the resistor pattern 25, and the holding portion 17a is also formed in an arc shape in accordance with the arc shape.

フレキシブル回路基板20の抵抗体パターン25の端子パターン29,29を接続した部分の両外周側辺(即ちフレキシブル回路基板20の幅方向(B)の両端部)には凹状に切り欠かれた一対の樹脂挿通部75a,75aが設けられ、また両端子パターン29,29の間には貫通孔からなる樹脂挿通部75bが設けられ、これら樹脂挿通部75a,75a,75bの上を通過し且つ抵抗体パターン25の円弧形状に合わせて円弧状に押え部17bが成形されている。押え部17bは樹脂挿通部75a,75a,75bの部分でその下側の絶縁基台10を構成する成形樹脂と連結されている。   A pair of concave cutouts are formed on both outer peripheral sides (ie, both ends in the width direction (B) of the flexible circuit board 20) of a portion where the terminal patterns 29, 29 of the resistor pattern 25 of the flexible circuit board 20 are connected. Resin insertion portions 75a, 75a are provided, and a resin insertion portion 75b formed of a through hole is provided between the two terminal patterns 29, 29. The resin insertion portions 75a, 75a, 75b The pressing portion 17b is formed in an arc shape in accordance with the arc shape of the pattern 25. The holding portion 17b is connected to the molding resin constituting the insulating base 10 below the resin insertion portions 75a, 75a, 75b at the portions thereof.

フレキシブル回路基板20の絶縁基台10の下面側に折り返された長さ方向(A)のもう一つの辺の端部(端子パターン29,29側)となる端辺73は、略直線状でその中央に円弧状に凹む凹部77(図15参照)を設けている。そして一端辺73の上には、端辺73を複数箇所(五ヶ所)で押さえるように押え部17cが成形されている。フレキシブル回路基板20の絶縁基台10の下面側に折り返された部分の面は、絶縁基台10の下面の他の部分よりも凹む凹部78となっている。凹部78の深さは端子板70の厚みとほぼ同一である。そして絶縁基台10の凹部78を設けた側の辺の端部に端子板70,70がフレキシブル回路基板20上に設けた端子パターン29,29と接続するように取り付けられている。   An end side 73 of the other side in the length direction (A) (terminal pattern 29, 29 side) folded back on the lower surface side of the insulating base 10 of the flexible circuit board 20 has a substantially linear shape. A concave portion 77 (see FIG. 15) that is concave in an arc shape is provided at the center. A pressing portion 17c is formed on one end 73 so as to press the end 73 at a plurality of places (five places). The surface of the portion of the flexible circuit board 20 that is folded back toward the lower surface of the insulating base 10 is a concave portion 78 that is more concave than other portions of the lower surface of the insulating base 10. The depth of the recess 78 is substantially the same as the thickness of the terminal plate 70. Then, terminal plates 70, 70 are attached to end portions of the side of the insulating base 10 on which the concave portions 78 are provided, so as to be connected to terminal patterns 29, 29 provided on the flexible circuit board 20.

次にこの電子部品用基板1−5の製造方法を説明する。まず図15に示すように貫通孔21、樹脂挿通部75a,75a,75bを有し、その表面に物理的蒸着又は化学的蒸着による金属薄膜によって抵抗体パターン25と端子パターン29,29とを形成したフレキシブル回路基板20を用意する。このフレキシブル回路基板20は、抵抗体パターン25を設けた部分の両側辺から連結部31,31を突出しており、これら連結部31,31によって同一の多数のフレキシブル回路基板20(図示せず)が並列に連結されている。   Next, a method of manufacturing the electronic component substrate 1-5 will be described. First, as shown in FIG. 15, a through hole 21 and resin insertion portions 75a, 75a, 75b are provided, and a resistor pattern 25 and terminal patterns 29, 29 are formed on the surface thereof by a metal thin film by physical vapor deposition or chemical vapor deposition. The prepared flexible circuit board 20 is prepared. The flexible circuit board 20 has connecting portions 31, 31 protruding from both sides of the portion where the resistor pattern 25 is provided, and these connecting portions 31, 31 enable the same large number of flexible circuit boards 20 (not shown). They are connected in parallel.

次に前記フレキシブル回路基板20及び集電板50−5を図16に示すように、第一,第二金型41,45内にインサートする。このとき第一,第二金型41,45内には電子部品用基板1−5と同一形状のキャビティーC1が形成されるが、フレキシブル回路基板20はその抵抗体パターン25形成面をキャビティーC1の第一金型41側の内平面C11に当接し、且つ端子パターン29,29を設けた一端辺73側部分を第二金型45側に折り返しておく。なおフレキシブル回路基板20の端辺73に凹部77(図15参照)を設けたのは、フレキシブル回路基板20の端辺73側部分を第二金型45側に折り返した際に、第二金型45に設けた貫通孔11を形成するための凸部47にフレキシブル回路基板20が当接しないように逃げるためである。   Next, the flexible circuit board 20 and the current collecting plate 50-5 are inserted into the first and second molds 41 and 45 as shown in FIG. At this time, a cavity C1 having the same shape as the electronic component substrate 1-5 is formed in the first and second molds 41 and 45, and the flexible circuit board 20 has its surface on which the resistor pattern 25 is formed. The portion of one end side 73 where C1 abuts on the inner plane C11 of the first mold 41 side and is provided with the terminal patterns 29 and 29 is folded back to the second mold 45 side. The reason why the concave portion 77 (see FIG. 15) is provided in the end 73 of the flexible circuit board 20 is that when the end 73 side portion of the flexible circuit board 20 is folded back to the second mold 45 side, This is because the flexible circuit board 20 escapes so that the flexible circuit board 20 does not come into contact with the projection 47 for forming the through hole 11 provided in the hole 45.

そして第一金型41側に設けた二ヶ所の樹脂注入口(図13(a)に示す矢印G1,G2及び図16に示すG1,G2)から加熱・溶融した合成樹脂を圧入してキャビティーC1内を満たす。このとき溶融樹脂の圧入圧力と熱とによりフレキシブル回路基板20はキャビティーC1の内周面に押し付けられてその内周面形状に変形し、その状態のまま冷却・固化される。そして第一,第二金型41,45を取り外し、成形された絶縁基台10の両側から突出している連結部31,31の部分を切断し、さらに図17(a),(b)に示すように、絶縁基台10の凹部78を設けた側の辺の端部の端子パターン29,29を設けた部分にコ字状の端子板70,70を覆うように取り付けて絶縁基台10を挟持して固定すれば、図13(a),(b)に示す電子部品用基板1−5が完成する。端子板70,70の固定方法としては、端子板70,70による機械的圧接力のみでも良いし、導電性接着剤等を介して接続しても良い。なお端子板70,70の形状・取付構造はこの実施の形態に限定されず、要は端子パターン29と接続して絶縁基台10端部に取り付ける構造であれば、どのような構造であっても良い。   Then, synthetic resin heated and melted from two resin injection ports (arrows G1 and G2 shown in FIG. 13A and G1 and G2 shown in FIG. 16) provided on the first mold 41 side is pressed into the cavity. Fill in C1. At this time, the flexible circuit board 20 is pressed against the inner peripheral surface of the cavity C1 by the press-in pressure and heat of the molten resin, deforms into the inner peripheral surface shape, and is cooled and solidified in that state. Then, the first and second molds 41 and 45 are removed, and the portions of the connecting portions 31 and 31 protruding from both sides of the formed insulating base 10 are cut, and further shown in FIGS. 17 (a) and 17 (b). As described above, the insulating base 10 is attached to the portion where the terminal patterns 29, 29 are provided at the ends of the sides of the insulating base 10 on which the concave portions 78 are provided so as to cover the U-shaped terminal plates 70, 70. By sandwiching and fixing, the electronic component substrate 1-5 shown in FIGS. 13A and 13B is completed. As a method of fixing the terminal plates 70, 70, only the mechanical pressing force by the terminal plates 70, 70 may be used, or the terminals may be connected via a conductive adhesive or the like. The shape and mounting structure of the terminal plates 70, 70 are not limited to this embodiment. In short, any structure can be used as long as it is connected to the terminal pattern 29 and mounted on the end of the insulating base 10. Is also good.

即ち電子部品用基板1−5は、合成樹脂フイルム上にその表面に摺動子が摺接する抵抗体パターン25とこの抵抗体パターン25に接続される端子パターン29,29とを設けてなるフレキシブル回路基板20と、金属板からなる集電板50−5と、電子部品用基板1−5の外形形状に形成されたキャビティーC1を有する第一,第二金型41,45とを用意し、前記第一,第二金型41,45のキャビティーC1内に前記フレキシブル回路基板20と集電板50−5とを収納し、その際前記フレキシブル回路基板20の抵抗体パターン25を設けた面をキャビティーC1内の一方の面C11(第一金型41面)に当接し、前記キャビティーC1内に溶融した成形樹脂を充填し、充填した成形樹脂が固化した後に第一,第二金型41,45を取り外すことで、成形樹脂からなる絶縁基台10の上面にフレキシブル回路基板20をその抵抗体パターン25と端子パターン29,29とが露出するように取り付けると同時に、集電板50−5を埋め込み、その後絶縁基台端部12に、前記フレキシブル回路基板20上に設けられた端子パターン29,29に接続するように端子板70,70を取り付けて製造される。   That is, the electronic component substrate 1-5 has a flexible circuit formed by providing a resistor pattern 25 on a surface of which a slider slides on a synthetic resin film and terminal patterns 29, 29 connected to the resistor pattern 25. A substrate 20, a current collecting plate 50-5 made of a metal plate, and first and second molds 41 and 45 having a cavity C1 formed in the outer shape of the electronic component substrate 1-5 are prepared. The surface on which the flexible circuit board 20 and the current collecting plate 50-5 are housed in the cavity C1 of the first and second molds 41 and 45, and in which case the resistor pattern 25 of the flexible circuit board 20 is provided. Is brought into contact with one surface C11 (the surface of the first mold 41) in the cavity C1, and the cavity C1 is filled with a molten molding resin, and after the filled molding resin is solidified, the first and second molds are filled. Molds 41 and 45 The flexible circuit board 20 is mounted on the upper surface of the insulating base 10 made of a molding resin so that the resistor pattern 25 and the terminal patterns 29, 29 are exposed, and at the same time, the current collecting plate 50-5 is embedded. Thereafter, the terminal board 70 is attached to the insulating base end portion 12 so as to be connected to the terminal patterns 29 provided on the flexible circuit board 20.

なお前述のように押え部17cによって端辺73及びその近傍を断続的に複数箇所で押さえたのは、端辺73の一部を第二金型45の面に当接させておくことで、端辺73の部分が溶融成形樹脂の圧入圧力によって第二金型45の面まで押し上げられて変形しないようにこれを押えておくためである。つまり押え部17cを設けないで絶縁基台10の下面から露出している端辺73及びその近傍部分は、第二金型45によって端辺73及びその近傍を押えていた結果形成されたものである。   As described above, the end portion 73 and the vicinity thereof are intermittently pressed at a plurality of places by the holding portion 17c because a part of the end side 73 is brought into contact with the surface of the second mold 45. This is because the end 73 is pushed up to the surface of the second mold 45 by the press-fitting pressure of the melt-molded resin so as not to be deformed. That is, the side 73 and the vicinity thereof exposed from the lower surface of the insulating base 10 without providing the holding portion 17c are formed as a result of pressing the side 73 and the vicinity thereof by the second mold 45. is there.

この電子部品用基板1−5によれば、絶縁基台10の上面に設けられたフレキシブル回路基板20と絶縁基台10の下面に設けられたフレキシブル回路基板20とに、それぞれフレキシブル回路基板20を強固に絶縁基台10に固定する押え部17a〜17cを設けたので、たとえフレキシブル回路基板20と絶縁基台10とがインサート成形時の熱と圧力だけによっては固着しにくい材質の組み合わせであったとしても、フレキシブル回路基板20が絶縁基台10の表面から剥がれるなどの問題は生じず、容易にこれを強固に固定しておくことができる。なおこの実施の形態においては、押え部17a〜17cをフレキシブル回路基板20の絶縁基台10の上面側に設けられた抵抗体パターン25側の端辺71と、抵抗体パターン25の端部25e,25eの外周近傍部分と、絶縁基台10の下面側に設けられた端子パターン29,29側の端辺73とに設けたが、フレキシブル回路基板20の絶縁基台10上への固着が比較的強固な場合、押え部はこれら三ヵ所の内の何れか一ヵ所のみに設けるだけでもかまわない。   According to the electronic component substrate 1-5, the flexible circuit board 20 provided on the upper surface of the insulating base 10 and the flexible circuit board 20 provided on the lower surface of the insulating base 10 are respectively provided with the flexible circuit board 20. Since the holding portions 17a to 17c for firmly fixing the insulating base 10 are provided, a combination of materials that are difficult to be fixed to the flexible circuit board 20 and the insulating base 10 only by heat and pressure during insert molding is used. However, such a problem does not occur that the flexible circuit board 20 is peeled off from the surface of the insulating base 10 and the flexible circuit board 20 can be easily and firmly fixed. In this embodiment, the holding portions 17a to 17c are provided on the side of the resistor pattern 25 provided on the upper surface side of the insulating base 10 of the flexible circuit board 20, and the ends 25e and 25e of the resistor pattern 25 are provided. 25e and the terminal patterns 29 provided on the lower surface side of the insulating base 10 and the end side 73 on the 29 side, but the flexible circuit board 20 is relatively fixed on the insulating base 10. If firm, the holding part may be provided only in one of these three places.

以上のようにして製造された電子部品用基板1−5は、その筒状突起51−5を、前記図11に示すのと同様の摺動子60の嵌挿孔61に貫通してその先端をかしめることで摺動子60を回動自在に取り付け、これによって半固定可変抵抗器が構成される。   The electronic component substrate 1-5 manufactured as described above penetrates the cylindrical projection 51-5 into the fitting hole 61 of the slider 60 similar to that shown in FIG. By caulking, the slider 60 is rotatably mounted, thereby forming a semi-fixed variable resistor.

なおこの実施の形態では、端子板70,70を成形後のフレキシブル回路基板20を一体化した絶縁基台10に後から取り付けたが、前記第二の実施の形態と同様に、予め端子板70,70もフレキシブル回路基板20や集電板50−5と一緒に、第一,第二金型41,45のキャビティーC1内に収納しておき、溶融樹脂を射出成形する際に同時に端子板70,70を一体に絶縁基台10に取り付けても良い。   In this embodiment, the terminal boards 70, 70 are later mounted on the insulating base 10 in which the molded flexible circuit board 20 is integrated. However, as in the second embodiment, the terminal boards 70 , 70 together with the flexible circuit board 20 and the current collector plate 50-5 are housed in the cavities C1 of the first and second molds 41, 45, and the terminal board is simultaneously formed when the molten resin is injection-molded. 70, 70 may be integrally attached to the insulating base 10.

〔第六の実施の形態〕
なお前記各実施の形態においては、絶縁基台10の絶縁基台端部12にコの字状の端子板70を、絶縁基台10の成形後又は絶縁基台10の成形の際に、取り付けることで面実装型の電子部品用基板1−1〜1−5を製造したが、面実装型とする必要がない場合は、端子板70を取り付ける必要はない。この電子部品用基板は、直接図示はしないが、電子部品用基板1−1,3,4,5において取り付けている端子板70を取り付けないものがこれに相当する。そしてこの電子部品用基板の製造方法は、合成樹脂フイルム上にその表面に摺動子が摺接する抵抗体パターン(導体パターン)とこの抵抗体パターンに接続される端子パターンとを設けてなるフレキシブル回路基板と、金属板からなる集電板と、電子部品用基板の外形形状に形成されたキャビティーを有する金型とを用意し、前記金型のキャビティー内に前記フレキシブル回路基板と集電板とを収納し、その際前記フレキシブル回路基板の導体パターンを設けた面をキャビティー内の一方の面に当接し、前記キャビティー内に溶融した成形樹脂を充填し、充填した成形樹脂が固化した後に金型を取り外すことで行われる。
[Sixth embodiment]
In the above embodiments, the U-shaped terminal plate 70 is attached to the insulating base end portion 12 of the insulating base 10 after the insulating base 10 is formed or when the insulating base 10 is formed. The electronic component substrates 1-1 to 1-5 of the surface mount type are manufactured in the above. However, when it is not necessary to use the surface mount type, it is not necessary to attach the terminal plate 70. Although not shown directly, the electronic component substrate corresponds to the electronic component substrates 1-1, 3, 4, and 5 to which the terminal plate 70 attached is not attached. The method for manufacturing the electronic component substrate is a flexible circuit comprising a resistor pattern (conductor pattern) on which a slider slides on a surface of a synthetic resin film and a terminal pattern connected to the resistor pattern. A substrate, a current collector made of a metal plate, and a mold having a cavity formed in the external shape of the electronic component substrate are prepared, and the flexible circuit board and the current collector are provided in the cavity of the mold. In this case, the surface on which the conductor pattern of the flexible circuit board is provided abuts against one surface in the cavity, and the cavity is filled with a molten molding resin, and the filled molding resin is solidified. This is done later by removing the mold.

以上本発明の実施の形態を説明したが、本発明は上記実施の形態に限定されるものではなく、特許請求の範囲、及び明細書と図面に記載された技術的思想の範囲内において種々の変形が可能である。なお直接明細書及び図面に記載がない何れの形状や構造や材質であっても、本願発明の作用・効果を奏する以上、本願発明の技術的思想の範囲内である。例えば端子板70の形状は種々の変更が可能であり、要はフレキシブル回路基板上に設けられた端子パターンと接続して絶縁基台端部に取り付く端子板であれば、どのような形状・取付構造のものであっても良い。   Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various modifications may be made within the scope of the claims and the technical idea described in the specification and the drawings. Deformation is possible. Note that any shape, structure, or material not directly described in the specification and drawings is within the scope of the technical idea of the present invention as long as the effects and effects of the present invention are exhibited. For example, the shape of the terminal plate 70 can be variously changed. In short, any shape and mounting structure can be used as long as the terminal plate is connected to the terminal pattern provided on the flexible circuit board and is attached to the end of the insulating base. It may be.

また上記各実施の形態では導体パターンとして抵抗体パターンを用いたが、スイッチパターン等、他の各種パターンを用いても良い。スイッチパターンを設ける場合はスイッチパターンと端子パターンとを同一材質とし、同一の工程で形成しても良い。また導体パターンとして上記各実施の形態では物理的蒸着又は化学的蒸着による金属薄膜を用いたが、樹脂中に導電粉を混合してなる抵抗体ペーストを用いても良く、また金属箔のエッチングによって形成される導体パターンを用いても良い等、種々の変更が可能である。   In each of the above embodiments, the resistor pattern is used as the conductor pattern. However, other various patterns such as a switch pattern may be used. When a switch pattern is provided, the switch pattern and the terminal pattern may be formed of the same material and formed in the same step. Further, in each of the above embodiments, a metal thin film formed by physical vapor deposition or chemical vapor deposition is used as the conductor pattern. However, a resistor paste obtained by mixing conductive powder in a resin may be used. Various changes are possible, such as the use of a formed conductor pattern.

本発明の第一の実施の形態を用いて製造した電子部品用基板1−1を示す斜視図である。FIG. 2 is a perspective view showing an electronic component substrate 1-1 manufactured using the first embodiment of the present invention. 電子部品用基板1−1を示す図であり、図2(a)は平面図、図2(b)は正面図、図2(c)は図2(a)のA−A断面図、図2(d)は裏面図である。FIG. 2A is a plan view, FIG. 2B is a front view, and FIG. 2C is a cross-sectional view taken along line AA of FIG. 2A. 2 (d) is a rear view. 電子部品用基板1−1の製造方法説明図である。FIG. 5 is an explanatory diagram of a method of manufacturing the electronic component substrate 1-1. 電子部品用基板1−1の製造方法説明図である。FIG. 5 is an explanatory diagram of a method of manufacturing the electronic component substrate 1-1. 電子部品用基板1−1を用いて構成した半固定可変抵抗器100−1を示す図であり、図5(a)は平面図、図5(b)は正面図、図5(c)は図5(a)のB−B断面図、図5(d)は裏面図である。5A and 5B are diagrams showing a semi-fixed variable resistor 100-1 configured using the electronic component substrate 1-1, wherein FIG. 5A is a plan view, FIG. 5B is a front view, and FIG. FIG. 5A is a sectional view taken along line BB, and FIG. 5D is a rear view. 本発明の第二の実施の形態を用いて製造した電子部品用基板1−2を示す図であり、図6(a)は平面図、図6(b)は正面図、図6(c)は図6(a)のC−C断面図、図6(d)は裏面図である。FIGS. 6A and 6B are diagrams showing an electronic component substrate 1-2 manufactured using the second embodiment of the present invention, wherein FIG. 6A is a plan view, FIG. 6B is a front view, and FIG. 6A is a cross-sectional view taken along line CC of FIG. 6A, and FIG. 6D is a rear view. 電子部品用基板1−2の製造方法説明図である。FIG. 4 is an explanatory diagram of a method of manufacturing the electronic component substrate 1-2. 電子部品用基板1−3を示す図であり、図8(a)は平面図、図8(b)は正面図、図8(c)は図8(a)のD−D断面図、図8(d)は裏面図である。It is a figure which shows the board 1-3 for electronic components, FIG.8 (a) is a top view, FIG.8 (b) is a front view, FIG.8 (c) is DD sectional drawing of FIG.8 (a), figure. FIG. 8D is a rear view. 電子部品用基板1−3の製造方法説明図である。FIG. 4 is an explanatory diagram of a method of manufacturing the electronic component substrate 1-3. 電子部品用基板1−3´の製造方法説明図である。FIG. 5 is an explanatory diagram of a method of manufacturing the electronic component substrate 1-3 ′. 電子部品用基板1−3を用いて構成した半固定可変抵抗器100−3を示す図であり、図11(a)は平面図、図11(b)は正面図、図11(c)は図11(a)のE−E断面図、図11(d)は裏面図である。11 (a) is a plan view, FIG. 11 (b) is a front view, and FIG. 11 (c) is a diagram showing a semi-fixed variable resistor 100-3 configured using the electronic component substrate 1-3. FIG. 11A is a cross-sectional view taken along the line EE, and FIG. 11D is a rear view. 本発明の第四の実施の形態を用いて製造した電子部品用基板1−4を示す断面図である。It is a sectional view showing substrate 1-4 for electronic parts manufactured using a 4th embodiment of the present invention. 本発明の第五の実施の形態を用いて製造した電子部品用基板1−5を示す図であり、図13(a)は上側から見た斜視図、図13(b)は下側から見た斜視図である。13A and 13B are diagrams showing an electronic component substrate 1-5 manufactured using the fifth embodiment of the present invention, wherein FIG. 13A is a perspective view seen from above, and FIG. 13B is a view seen from below. FIG. 電子部品用基板1−5を示す図であり、図14(a)は平面図、図14(b)は正面図、図14(c)は図14(a)のE−E断面図、図14(d)は裏面図、図14(e)は図14(a)のF−F断面図である。14A and 14B are diagrams showing the electronic component substrate 1-5, FIG. 14A is a plan view, FIG. 14B is a front view, and FIG. 14C is a cross-sectional view taken along the line EE of FIG. 14D is a rear view, and FIG. 14E is a cross-sectional view taken along line FF of FIG. 14A. 電子部品用基板1−5の製造方法説明図である。FIG. 7 is an explanatory diagram of a method of manufacturing the electronic component substrate 1-5. 電子部品用基板1−5の製造方法説明図である。FIG. 7 is an explanatory diagram of a method of manufacturing the electronic component substrate 1-5. 電子部品用基板1−5の製造方法説明図である。FIG. 7 is an explanatory diagram of a method of manufacturing the electronic component substrate 1-5.

符号の説明Explanation of reference numerals

1−1 電子部品用基板
10 絶縁基台
11 貫通孔
12 絶縁基台端部
15 集電板収納凹部
18 端子板収納凹部
20 フレキシブル回路基板
21 貫通孔
25 抵抗体パターン(導体パターン)
29 端子パターン
31 連結部
41 第一金型
42 当接部
45 第二金型
C1 キャビティー
C11 内平面
C12 キャビティー
P1,P2 樹脂注入口
70 端子板
100−1 半固定可変抵抗器
50 集電板
51 筒状突起
60 摺動子
61 嵌挿孔
63 摺動接点
1−2 電子部品用基板
19 押え部
23 開口
1−3 電子部品用基板
50−3 集電板
51−3 筒状突起
53−3 基部
55−3 接続部
100−3 半固定可変抵抗器
1−4 電子部品用基板
1−5 電子部品用基板
17a,17b,17c 押え部
50−5 集電板
51−5 筒状突起
53−5 基部
55−5 接続部
G1,G2 樹脂注入口
1-1 Electronic component substrate 10 Insulating base 11 Through hole 12 Insulating base end 15 Current collecting plate housing recess 18 Terminal board housing recess 20 Flexible circuit board 21 Through hole 25 Resistor pattern (conductor pattern)
29 Terminal pattern 31 Connecting part 41 First mold 42 Contact part 45 Second mold C1 Cavity C11 Inner plane C12 Cavities P1, P2 Resin injection port 70 Terminal plate 100-1 Semi-fixed variable resistor 50 Current collector plate 51 Cylindrical projection 60 Slider 61 Fitting hole 63 Sliding contact 1-2 Electronic component substrate 19 Holding portion 23 Opening 1-3 Electronic component substrate 50-3 Current collector plate 51-3 Cylindrical projection 53-3 Base part 55-3 Connection part 100-3 Semi-fixed variable resistor 1-4 Electronic component substrate 1-5 Electronic component substrates 17a, 17b, 17c Holding part 50-5 Current collector plate 51-5 Cylindrical projection 53-5 Base part 55-5 connection part G1, G2 resin injection port

Claims (5)

合成樹脂フイルム上にその表面に摺動子が摺接する導体パターンとこの導体パターンに接続される端子パターンとを設けてなるフレキシブル回路基板と、金属板からなる端子板と、電子部品用基板の外形形状に形成されたキャビティーを有する金型とを用意し、
前記金型のキャビティー内に前記フレキシブル回路基板を収納し、その際前記フレキシブル回路基板の導体パターンを設けた面をキャビティー内の一方の面に当接し、
前記キャビティー内に溶融した成形樹脂を充填し、充填した成形樹脂が固化した後に金型を取り外すことで、成形樹脂からなる絶縁基台にフレキシブル回路基板をその導体パターンと端子パターンとを露出するように取り付け、
その後絶縁基台端部に、前記フレキシブル回路基板上に設けられた端子パターンに接続するように端子板を取り付けたことを特徴とする電子部品用基板の製造方法。
A flexible circuit board comprising a synthetic resin film provided with a conductor pattern on which the slider slides in contact with the surface thereof and a terminal pattern connected to the conductor pattern; a terminal plate made of a metal plate; Prepare a mold having a cavity formed in the shape,
The flexible circuit board is housed in the cavity of the mold, and at this time, the surface on which the conductor pattern of the flexible circuit board is provided abuts on one surface in the cavity,
Filling the cavity with the molten molding resin, and removing the mold after the filled molding resin is solidified, exposing the conductive pattern and the terminal pattern of the flexible circuit board to the insulating base made of the molding resin. So that
Thereafter, a terminal plate is attached to an end portion of the insulating base so as to be connected to a terminal pattern provided on the flexible circuit board.
合成樹脂フイルム上にその表面に摺動子が摺接する導体パターンとこの導体パターンに接続される端子パターンとを設けてなるフレキシブル回路基板と、金属板からなる端子板と、電子部品用基板の外形形状に形成されたキャビティーを有する金型とを用意し、
前記金型のキャビティー内に前記フレキシブル回路基板と端子板とを収納し、その際前記フレキシブル回路基板の導体パターンを設けた面をキャビティー内の一方の面に当接すると同時に、端子板の一部をフレキシブル回路基板の端子パターンに当接又は対向させておき、
前記キャビティー内に溶融した成形樹脂を充填し、充填した成形樹脂が固化した後に金型を取り外すことで、成形樹脂からなる絶縁基台にフレキシブル回路基板をその導体パターンと端子パターンとを露出するように取り付けると同時に、この絶縁基台端部に、前記フレキシブル回路基板上に設けられた端子パターンに接続するように端子板を取り付けたことを特徴とする電子部品用基板の製造方法。
A flexible circuit board comprising a synthetic resin film provided with a conductor pattern on which the slider slides in contact with the surface thereof and a terminal pattern connected to the conductor pattern; a terminal plate made of a metal plate; Prepare a mold having a cavity formed in the shape,
The flexible circuit board and the terminal board are housed in the cavity of the mold, and at this time, the surface on which the conductor pattern of the flexible circuit board is provided abuts one surface in the cavity, and A part is abutted or opposed to the terminal pattern of the flexible circuit board,
Filling the cavity with the molten molding resin, and removing the mold after the filled molding resin is solidified, exposing the conductive pattern and the terminal pattern of the flexible circuit board to the insulating base made of the molding resin. A method of manufacturing a substrate for electronic components, wherein a terminal plate is attached to an end of the insulating base so as to be connected to a terminal pattern provided on the flexible circuit board.
合成樹脂フイルム上にその表面に摺動子が摺接する導体パターンとこの導体パターンに接続される端子パターンとを設けてなるフレキシブル回路基板と、金属板からなる集電板と、電子部品用基板の外形形状に形成されたキャビティーを有する金型とを用意し、
前記金型のキャビティー内に前記フレキシブル回路基板と集電板とを収納し、その際前記フレキシブル回路基板の導体パターンを設けた面をキャビティー内の一方の面に当接し、
前記キャビティー内に溶融した成形樹脂を充填し、充填した成形樹脂が固化した後に金型を取り外すことで、成形樹脂からなる絶縁基台にフレキシブル回路基板をその導体パターンと端子パターンとが露出するように取り付けると同時に、集電板を埋め込み、
その後絶縁基台端部に、前記フレキシブル回路基板上に設けられた端子パターンに接続するように金属板製の端子板を取り付けたことを特徴とする電子部品用基板の製造方法。
A flexible circuit board comprising a synthetic resin film provided with a conductor pattern on which the slider is in sliding contact with the surface and a terminal pattern connected to the conductor pattern, a current collector plate made of a metal plate, and a substrate for electronic components. Prepare a mold having a cavity formed in the external shape,
The flexible circuit board and the current collecting plate are housed in the cavity of the mold, and at this time, the surface on which the conductor pattern of the flexible circuit board is provided abuts on one surface in the cavity,
The cavity is filled with the molten molding resin, and the mold is removed after the filled molding resin is solidified, so that the conductor pattern and the terminal pattern of the flexible circuit board are exposed on the insulating base made of the molding resin. At the same time, embed the current collector,
Thereafter, a terminal plate made of a metal plate is attached to an end of the insulating base so as to be connected to a terminal pattern provided on the flexible circuit board.
合成樹脂フイルム上にその表面に摺動子が摺接する導体パターンとこの導体パターンに接続される端子パターンとを設けてなるフレキシブル回路基板と、金属板からなる集電板と、金属板からなる端子板と、電子部品用基板の外形形状に形成されたキャビティーを有する金型とを用意し、
前記金型のキャビティー内に前記フレキシブル回路基板と集電板と端子板とを収納し、その際前記フレキシブル回路基板の導体パターンを設けた面をキャビティー内の一方の面に当接すると同時に、端子板の一部をフレキシブル回路基板の端子パターンに当接又は対向させておき、
前記キャビティー内に溶融した成形樹脂を充填し、充填した成形樹脂が固化した後に金型を取り外すことで、成形樹脂からなる絶縁基台にフレキシブル回路基板をその導体パターンと端子パターンとを露出するように取り付けると同時に、この絶縁基台端部に、前記フレキシブル回路基板上に設けられた端子パターンに接続するように端子板を取り付け、さらに同時に集電板を埋め込んだことを特徴とする電子部品用基板の製造方法。
A flexible circuit board comprising a synthetic resin film provided with a conductor pattern on which the slider slides in contact with the surface and a terminal pattern connected to the conductor pattern, a current collector made of a metal plate, and a terminal made of a metal plate Prepare a plate and a mold having a cavity formed in the external shape of the electronic component substrate,
The flexible circuit board, the current collector, and the terminal board are accommodated in the cavity of the mold, and at the same time, the surface on which the conductor pattern of the flexible circuit board is provided abuts against one surface in the cavity. , A part of the terminal board is abutted or opposed to the terminal pattern of the flexible circuit board,
The cavity is filled with the molten molding resin, and the mold is removed after the filled molding resin is solidified, thereby exposing the conductive pattern and the terminal pattern of the flexible circuit board to the insulating base made of the molding resin. At the same time, a terminal plate is attached to the end portion of the insulating base so as to be connected to a terminal pattern provided on the flexible circuit board, and a current collector plate is further embedded at the same time. Substrate manufacturing method.
合成樹脂フイルム上にその表面に摺動子が摺接する導体パターンとこの導体パターンに接続される端子パターンとを設けてなるフレキシブル回路基板と、金属板からなる集電板と、電子部品用基板の外形形状に形成されたキャビティーを有する金型とを用意し、
前記金型のキャビティー内に前記フレキシブル回路基板と集電板とを収納し、その際前記フレキシブル回路基板の導体パターンを設けた面をキャビティー内の一方の面に当接し、
前記キャビティー内に溶融した成形樹脂を充填し、充填した成形樹脂が固化した後に金型を取り外すことで、成形樹脂からなる絶縁基台にフレキシブル回路基板をその導体パターンと端子パターンとが露出するように取り付けると同時に、集電板を埋め込んだことを特徴とする電子部品用基板の製造方法。
A flexible circuit board comprising a synthetic resin film provided with a conductor pattern on which the slider is in sliding contact with the surface and a terminal pattern connected to the conductor pattern, a current collector plate made of a metal plate, and a substrate for electronic components. Prepare a mold having a cavity formed in the external shape,
The flexible circuit board and the current collecting plate are housed in the cavity of the mold, and at this time, the surface on which the conductor pattern of the flexible circuit board is provided abuts on one surface in the cavity,
The cavity is filled with the molten molding resin, and the mold is removed after the filled molding resin is solidified, so that the conductor pattern and the terminal pattern of the flexible circuit board are exposed on the insulating base made of the molding resin. A method for manufacturing a substrate for electronic components, wherein a current collector plate is embedded at the same time as mounting.
JP2003423308A 2003-02-12 2003-12-19 Method of manufacturing substrate for electronic component Pending JP2004266257A (en)

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JP2003423308A JP2004266257A (en) 2003-02-12 2003-12-19 Method of manufacturing substrate for electronic component
KR1020057014239A KR20050103913A (en) 2003-02-12 2004-02-05 Electronic parts board and method of producing the same
US10/541,459 US7728710B2 (en) 2003-02-12 2004-02-05 Electronic parts board and method of producing the same
DE112004000260T DE112004000260T5 (en) 2003-02-12 2004-02-05 Electronic component printed circuit board and method for its production
PCT/JP2004/001199 WO2004072993A1 (en) 2003-02-12 2004-02-05 Electronic parts board and method of producing the same
TW093103295A TWI252495B (en) 2003-02-12 2004-02-12 Substrate for electronic component and method of producing the same

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101437988B1 (en) 2008-04-24 2014-09-05 엘지전자 주식회사 Printed circuit board and method for manufacturing the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101437988B1 (en) 2008-04-24 2014-09-05 엘지전자 주식회사 Printed circuit board and method for manufacturing the same

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