JPH07245154A - Inter-terminal shield connector and its manufacture - Google Patents

Inter-terminal shield connector and its manufacture

Info

Publication number
JPH07245154A
JPH07245154A JP6054800A JP5480094A JPH07245154A JP H07245154 A JPH07245154 A JP H07245154A JP 6054800 A JP6054800 A JP 6054800A JP 5480094 A JP5480094 A JP 5480094A JP H07245154 A JPH07245154 A JP H07245154A
Authority
JP
Japan
Prior art keywords
metal terminal
primary mold
hole
mold
cavity
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP6054800A
Other languages
Japanese (ja)
Other versions
JP3310451B2 (en
Inventor
Tetsuo Yumoto
哲男 湯本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sankyo Kasei Co Ltd
Original Assignee
Sankyo Kasei Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sankyo Kasei Co Ltd filed Critical Sankyo Kasei Co Ltd
Priority to JP05480094A priority Critical patent/JP3310451B2/en
Publication of JPH07245154A publication Critical patent/JPH07245154A/en
Application granted granted Critical
Publication of JP3310451B2 publication Critical patent/JP3310451B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Manufacturing Of Electrical Connectors (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

PURPOSE:To enhance reliability of a connector by forming surface unevenness at the periphery of a metal terminal, and eliminating risk of slipping off from an insulation layer. CONSTITUTION:A metal terminal 8 having a minor diametric portion 8a is formed rising contactlessly on the inner wall of a through hole 12 provided in a primary mould 1 which is located in a cavity 31. When insulation molten resin is poured in the cavity 31, the resin is injected into the primary mould 1, and the through hole 12 around the metal terminal 8 is filled therewith to form an insulation layer 9 so that a secondary mould is accomplished. According to this constitution, no gap is produced between the metal terminal and insulation layer, so that the metal terminal is free from poor performance in the contacting operation likely caused by flux.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、電気回路基板上の複数
の導体間を相互接続する金属端子を有し、特に高速伝達
するための端子間シールドコネクタおよびその製造方法
に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inter-terminal shield connector having metal terminals for interconnecting a plurality of conductors on an electric circuit board, and particularly for high-speed transmission, and a method of manufacturing the same.

【0002】[0002]

【従来の技術】従来からシールドコネクタは、合成樹脂
により一次モールドを形成し、高速伝達用としてはその
外周面を通電性のメッキを施し(例えば実開平5−92
978号)、この一次モールド内に絶縁性の合成樹脂を
充填し、この合成樹脂が硬化した後、金属端子をこの絶
縁性合成樹脂内に強制的な圧入手段により貫通させ、こ
の端子の両端を突出させた状態で保持しているものであ
る。
2. Description of the Related Art Conventionally, in a shielded connector, a primary mold is made of synthetic resin, and for high speed transmission, the outer peripheral surface of the shielded connector is plated with electric conductivity (for example, actual open flat plate 5-92).
No. 978), the primary mold is filled with an insulating synthetic resin, and after the synthetic resin is hardened, a metal terminal is penetrated into the insulating synthetic resin by a forced press-fitting means so that both ends of the terminal are It is held in a protruding state.

【0003】[0003]

【発明が解決しようとする課題】しかし、金属端子を絶
縁性の合成樹脂部に強制的に圧入したものは、この端子
とこの樹脂部との間に僅かであるが間隙が発生するのは
避けられない。そのためコネクタの端子を回路基板に半
田付けするとき、この半田付けに使用されるフラックス
(松やに)がこの間隙内に毛細管現象により沁み込んで
次第に浸透し、このフラックスが絶縁性であるため、後
で金属端子の接点不良を起す原因になる可能性がある。
そのため、フロンなどで端子などを洗浄することが必要
であるが、フロンの使用は禁止される方向にあり、勿論
この使用は地球環境の保護の上で望ましいことではな
い。さらに、従来のコネクタは金属端子が合成樹脂部か
ら抜けることがあり、これでは信頼性において劣る。
However, in the case where the metal terminal is forcibly pressed into the insulating synthetic resin portion, a slight gap is avoided between the terminal and the resin portion. I can't. Therefore, when soldering the terminals of the connector to the circuit board, the flux (pine or ni) used for this soldering penetrates into the gap due to the capillary phenomenon and gradually permeates. It may cause the contact failure of the metal terminal.
Therefore, it is necessary to clean the terminals and the like with CFCs, but the use of CFCs is prohibited, and of course this is not desirable in terms of protecting the global environment. Further, in the conventional connector, the metal terminal may come off from the synthetic resin portion, which is inferior in reliability.

【0004】そこで本発明の目的は、金属端子と絶縁性
樹脂部との間に毛細管現象を絶つこと、また金属端子は
絶縁性樹脂充填部から絶対に抜けないようにした信頼性
の高いコネクタおよびその製造方法を提供することにあ
る。
Therefore, an object of the present invention is to eliminate a capillary phenomenon between the metal terminal and the insulating resin portion, and to prevent the metal terminal from coming off from the insulating resin filled portion, and a highly reliable connector and It is to provide the manufacturing method.

【0005】[0005]

【課題を解決するための手段】本発明のかかるシールド
コネクタの特徴は、貫通孔を有しかつ外周面に通電性の
メッキが施してある一次モールドと、外周には凹凸部が
形成してあり上記一次モールドの上記貫通孔と無接触状
態で位置する金属端子と、上記金属端子の周囲に絶縁性
の樹脂を射出し充填してある絶縁層を形成した二次モー
ルドとからなるところにある。
The shielded connector of the present invention is characterized in that it has a through-hole and a primary mold having an outer peripheral surface plated with conductive material, and an uneven portion is formed on the outer peripheral surface. It is composed of a metal terminal located in a non-contact state with the through hole of the primary mold, and a secondary mold in which an insulating layer filled with an insulative resin is injected and filled around the metal terminal.

【0006】本発明にかかる製法の特徴は、貫通孔を有
する一次モールドを成形する工程と、この一次モールド
の外周面をメッキする工程と、上記メッキされた一次モ
ールドをキャビティ内に挿置する工程と、上記キャビテ
ィ内に位置する上記一次モールドの上記貫通孔に金属端
子をこの貫通孔と無接触状態で挿置する工程と、上記キ
ャビティ内の上記一次モールド内に絶縁性の誘樹脂を射
出し上記金属端子の周囲に充填する第二次モールド成形
工程とよりなるところにある。
The feature of the manufacturing method according to the present invention is that a step of forming a primary mold having a through hole, a step of plating the outer peripheral surface of the primary mold, and a step of inserting the plated primary mold into the cavity. And a step of inserting a metal terminal into the through hole of the primary mold located in the cavity without contacting the through hole, and injecting an insulative resin into the primary mold in the cavity. The second molding step is to fill the periphery of the metal terminal.

【0007】[0007]

【実施例】以下図面を参照して本発明の実施例について
説明する。
Embodiments of the present invention will be described below with reference to the drawings.

【0008】図1〜3において、合成樹脂により一次モ
ールド(成形品)1が形成してあり、この合成樹脂材料
としては、単一のプラスチックのみならず、ガラス繊
維、ピロリン酸カルシウム、チタン酸カリウル繊維など
のフィラーを混入したものを使用することがある。そし
てこの一次モールドの形状は、図1に示すように、上端
開口のボックス状のもので、その底面11には、複数個
(図1では10個)の貫通孔12…が開設してあり、こ
の貫通孔の下端開口縁は大径部12a…になっている。
また一次モールド1の内壁中間部には、段部13が形成
してある。また、一次モールド1の底面には、プリント
基板のアースに接続させるためのアース用端子14…が
複数個(図2では12個)垂設してある。そして、一次
モールド1の全外周面には、銅、ニッケル、金により通
電性のメッキ2が施してある。
In FIGS. 1 to 3, a primary mold (molded product) 1 is formed of a synthetic resin, and as the synthetic resin material, not only a single plastic but also glass fiber, calcium pyrophosphate, calyul titanate fiber is used. Sometimes mixed with a filler such as. The shape of the primary mold is, as shown in FIG. 1, a box-like shape having an opening at the upper end, and a plurality of (10 in FIG. 1) through holes 12 ... Are opened in the bottom surface 11. The opening edge at the lower end of the through hole is a large diameter portion 12a ....
Further, a step portion 13 is formed in the middle portion of the inner wall of the primary mold 1. Further, a plurality of ground terminals 14 (12 in FIG. 2) are provided on the bottom surface of the primary mold 1 for connecting to the ground of the printed circuit board. The entire outer peripheral surface of the primary mold 1 is plated with conductive material 2 of copper, nickel and gold.

【0009】ここで、図4を参照して、これ以降の成形
工程に使用される射出成形機の構造について説明する。
可動側の型3は、固定側の型4,5,6に対して上下動
可能に設置してある。可動側の型3の先端面には、キャ
ビティ31が穿設してあり、このキャビティの底面に
は、後で説明する金属端子8を保持する保持孔32,3
2が穿設してあり、さらに突出し棒7,7が進退可能な
透孔33,33が形成してある。保持孔32,32は、
一次モールド1の貫通孔12…に対応する位置に形成し
てあるもので、当然10個形成してある。また、固定側
の型4,5,6は、積層状態て一体化したもので、この
型において、最上位に位置する型4の上面には、半球状
に凹設してあるノズルタッチ41が形成してあり、この
ノズルタッチの低部には流路42が形成してあり、この
流路は中位に位置する型5を貫通している流路51に連
通し、さらにこの流路は最下位に位置する型6に形成し
てある流路61に連通している。型6の中央部の下面に
は、キャビティ31内に侵入可能な突出部62が形成し
てあり、この突出部の下面には、嵌合孔63,63が形
成してあり、さらに流路61の下端は、キャビティ31
に開口するゲートになっている。嵌合孔63…は、保持
孔32…と対向する位置関係で形成してあり、金属端子
8の上端部を挿入可能なもので、この金属端子の外部形
状よりやや大きな内部形状を有するもので、キャビティ
31内に位置する金属端子8の上端部が、嵌合可能な位
置に形成してある。
Here, the structure of the injection molding machine used in the subsequent molding steps will be described with reference to FIG.
The movable mold 3 is installed so as to be vertically movable with respect to the fixed molds 4, 5 and 6. A cavity 31 is bored in the tip surface of the movable mold 3, and holding holes 32, 3 for holding a metal terminal 8 described later are formed in the bottom surface of the cavity.
2 is provided, and through holes 33, 33 through which the protruding rods 7, 7 can be moved back and forth are formed. The holding holes 32, 32 are
It is formed at a position corresponding to the through holes 12 of the primary mold 1, and naturally 10 are formed. Further, the fixed molds 4, 5 and 6 are integrated in a laminated state, and in this mold, a nozzle touch 41, which is recessed in a hemispherical shape, is provided on the upper surface of the mold 4 located at the uppermost position. Is formed, and a flow path 42 is formed in the lower portion of the nozzle touch, the flow path communicates with a flow path 51 penetrating the mold 5 located in the middle position, and this flow path is It communicates with the flow path 61 formed in the die 6 located at the lowest position. A protrusion 62 that can enter the cavity 31 is formed on the lower surface of the center of the mold 6, and fitting holes 63, 63 are formed on the lower surface of this protrusion. The lower end of the cavity 31
The gate opens to. The fitting holes 63 ... Are formed so as to face the holding holes 32 ..., into which the upper ends of the metal terminals 8 can be inserted, and have an inner shape slightly larger than the outer shape of the metal terminals. The upper end portion of the metal terminal 8 located in the cavity 31 is formed at a position where it can be fitted.

【0010】そこで、図4に示す状態において、先ず可
動側の型3を後退させ、キャビティ31内に一次モール
ド1を挿置し、さらに、この一次モールドの貫通孔12
のそれぞれには、金属端子8の下端部を貫通させて、保
持孔32,32内に挿入して起立させる。金属端子8の
外周には、凹凸部として小径部8aが形成してあるが、
大径部であってもよい。保持孔32,32の位置及び内
部形状は、金属端子8が、キャビティ31内に位置する
一次モールド1の貫通孔12の内壁面に無接触状態で起
立可能なものでなければならない。そこで、可動側の型
3を進出させて、固定側の型6の端面に当接させる。こ
の時金属端子8の上端部は、固定側の型6の嵌合孔6
3,63に挿入して位置決めされている。ノズルタッチ
41にノズル(図示せず)から溶融した絶縁性の樹脂が
注入されると、ゲートからキャビティ31内に挿置して
ある一次モールド1内にこの絶縁性樹脂を射出され、金
属端子8の周囲の貫通孔12内に充填され、この樹脂は
この金属端子に密着し、この樹脂はその下面は貫通孔1
2の大径部12aと、上面は段部13とそれぞれ同一面
になった絶縁層9が形成されて、その結果、図5に示す
ような二次モールド10が成形される。
Therefore, in the state shown in FIG. 4, the mold 3 on the movable side is first retracted, the primary mold 1 is placed in the cavity 31, and the through hole 12 of this primary mold is further placed.
The lower end portion of the metal terminal 8 is penetrated through each of the above, and inserted into the holding holes 32, 32 to stand. A small diameter portion 8a is formed as an uneven portion on the outer periphery of the metal terminal 8,
It may be a large diameter portion. The positions and internal shapes of the holding holes 32, 32 must be such that the metal terminal 8 can stand without contact with the inner wall surface of the through hole 12 of the primary mold 1 located in the cavity 31. Therefore, the movable mold 3 is advanced and brought into contact with the end surface of the fixed mold 6. At this time, the upper end of the metal terminal 8 is fitted into the fitting hole 6 of the mold 6 on the fixed side.
It is inserted and positioned in 3, 63. When a molten insulating resin is injected into the nozzle touch 41 from a nozzle (not shown), the insulating resin is injected from the gate into the primary mold 1 inserted in the cavity 31, and the metal terminal 8 Is filled in the through hole 12 around the periphery of the resin, and the resin is in close contact with the metal terminal.
The second large-diameter portion 12a and the insulating layer 9 whose upper surface is flush with the step portion 13 are formed, and as a result, the secondary mold 10 as shown in FIG. 5 is molded.

【0011】二次モールド10用の絶縁性の樹脂は、そ
の目的とする機能に応じてガラス繊維または低誘電体と
して、マグネシウムパイロボレートウイスカー(Mg2
25 )、高誘電体としてチタン酸バリウムウイスカ
ー(BaTio3 )等をフィラーとして混入したもので
もよい。この二次モールド10の成形用の樹脂に、チタ
ン酸バリウムウイスカー(BaTio3 )等の高誘電体
をフィラーとして混合した材料を注入した場合、この材
料が金属端子8に強固に密着するため、一次モールド1
の通電性メッキ2(電極)との金属端子8(電極)との
間に、静電容量が発生し、安定した容量が得られる。そ
の結果ノイズフィルタ機能を持たせることができる。
The insulating resin for the secondary mold 10 is made of magnesium pyroborate whiskers (Mg 2 ) as a glass fiber or a low dielectric material depending on its intended function.
B 2 O 5 ) and barium titanate whiskers (BaTiO 3 ) as a high dielectric material may be mixed as a filler. When a material in which a high dielectric material such as barium titanate whiskers (BaTiO 3 ) is mixed as a filler is injected into the molding resin of the secondary mold 10, since this material firmly adheres to the metal terminal 8, the primary Mold 1
An electrostatic capacitance is generated between the conductive plating 2 (electrode) and the metal terminal 8 (electrode), and a stable capacitance is obtained. As a result, a noise filter function can be provided.

【0012】また、絶縁層9の断面形状は、図4に示す
ように貫通孔12の部分が狭くなり、その上下両側は大
きくなっているので、この絶縁層が一次モールド1に強
固に一体化しており、このモールドから離脱することは
完全に防止される。
Further, as shown in FIG. 4, the sectional shape of the insulating layer 9 is narrow at the through hole 12 and is large at the upper and lower sides thereof, so that the insulating layer is firmly integrated with the primary mold 1. Therefore, detachment from this mold is completely prevented.

【0013】[0013]

【発明の効果】本発明は、前記の構成を有するため、金
属端子と絶縁層との間に間隙が発生することが防止さ
れ、そのため従来のようにフラックスによる金属端子の
接点不良を起す心配がなく、この金属端子の外周には凹
凸部が形成してあるため、この絶縁層から抜けることが
なく信頼性の高いシールドコネクタを提供でき、さら
に、二次モールド用樹脂として誘電体をフィラーとして
混入したものを使用する場合には、安定したノイズフィ
ルター容量機能を持たせることができる。
Since the present invention has the above-mentioned structure, a gap is prevented from being formed between the metal terminal and the insulating layer, and therefore, there is a concern that the contact failure of the metal terminal due to the flux may occur as in the conventional case. Since this metal terminal has irregularities on the outer periphery, it is possible to provide a highly reliable shielded connector that does not come off from this insulating layer. Furthermore, as a secondary molding resin, a dielectric is mixed as a filler. When using the above, a stable noise filter capacity function can be provided.

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

【図1】一次モールドの斜面図である。FIG. 1 is a perspective view of a primary mold.

【図2】一次モールドを裏面から見た斜面図である。FIG. 2 is a perspective view of the primary mold seen from the back surface.

【図3】図1のa−a線断面図である。3 is a cross-sectional view taken along the line aa of FIG.

【図4】製法に使用する射出成形機の断面図である。FIG. 4 is a cross-sectional view of an injection molding machine used in the manufacturing method.

【図5】一次モールドの斜面図である。FIG. 5 is a perspective view of the primary mold.

【符号の説明】[Explanation of symbols]

1 一次モールド 12 貫通孔 2 通電性メッキ 8 金属端子 8a 凹凸部(小径部) 9 絶縁層 10 二次成形品 1 Primary Mold 12 Through Hole 2 Conductive Plating 8 Metal Terminal 8a Concavo-convex Part (Small Diameter Part) 9 Insulating Layer 10 Secondary Molded Product

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 一次モールドと金属端子と二次モールド
とからなり、 上記一次モールドは、貫通孔を有しかつ外周面に通電性
のメッキが施してあり、上記金属端子は、その外周に凹
凸部が形成してあり上記金属端子は、上記一次モールド
の上記貫通孔内にこの貫通孔と無接触状態で位置するも
のであり、 上記二次モールドは、上記一次モールド内に位置する上
記金属端子の周囲に絶縁性の樹脂を充填して絶縁層が形
成してあることを特徴とする端子間シールドコネクタ。
1. A primary mold, a metal terminal, and a secondary mold, wherein the primary mold has a through hole and an outer peripheral surface is electroconductively plated, and the metal terminal has an uneven surface. A part is formed and the metal terminal is located in the through hole of the primary mold in a non-contact state with the through hole, and the secondary mold is the metal terminal located in the primary mold. An inter-terminal shielded connector, characterized in that an insulating layer is formed by filling an insulating resin around the periphery of the.
【請求項2】 請求項1において、絶縁性樹脂には、誘
電体がフィラーとして混入されていることを特徴とする
端子間シールドコネクタ。
2. The inter-terminal shielded connector according to claim 1, wherein a dielectric is mixed in the insulating resin as a filler.
【請求項3】 貫通孔を有する一次モールドを成形する
工程と、この一次モールドの外周面を通電性のメッキを
する工程と、上記メッキされた一次モールドをキャビテ
ィ内に挿置する工程と、上記キャビティ内に位置する上
記一次モールドの上記貫通孔に金属端子をこの貫通孔と
無接触状態で挿置する工程と、上記キャビティ内の上記
一次モールド内に絶縁性の樹脂を射出し上記金属端子の
周囲に充填する第二次モールド成形工程とよりなること
を特徴とする端子間シールドコネクタの製造方法。
3. A step of molding a primary mold having a through hole, a step of electrically conductively plating an outer peripheral surface of the primary mold, a step of inserting the plated primary mold into a cavity, A step of inserting a metal terminal into the through hole of the primary mold located in the cavity without contacting the through hole, and injecting an insulative resin into the primary mold in the cavity to inject the metal terminal A method of manufacturing a shielded connector between terminals, comprising a secondary molding step of filling the periphery.
【請求項4】 請求項3において、絶縁性樹脂には、誘
電体がフィラーとして混入されていることを特徴とする
端子間シールドコネクタの製造方法。
4. The method for manufacturing a shielded connector between terminals according to claim 3, wherein a dielectric is mixed in the insulating resin as a filler.
JP05480094A 1994-03-02 1994-03-02 Shield connector between terminals and method of manufacturing the same Expired - Fee Related JP3310451B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP05480094A JP3310451B2 (en) 1994-03-02 1994-03-02 Shield connector between terminals and method of manufacturing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP05480094A JP3310451B2 (en) 1994-03-02 1994-03-02 Shield connector between terminals and method of manufacturing the same

Publications (2)

Publication Number Publication Date
JPH07245154A true JPH07245154A (en) 1995-09-19
JP3310451B2 JP3310451B2 (en) 2002-08-05

Family

ID=12980830

Family Applications (1)

Application Number Title Priority Date Filing Date
JP05480094A Expired - Fee Related JP3310451B2 (en) 1994-03-02 1994-03-02 Shield connector between terminals and method of manufacturing the same

Country Status (1)

Country Link
JP (1) JP3310451B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
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KR100880842B1 (en) * 2007-12-14 2009-02-02 주식회사 범천정밀 Apparatus for manufacturing shell of coaxial connector for portable telephone and thereof method
WO2010117000A1 (en) * 2009-04-08 2010-10-14 エヌイーシー ショット コンポーネンツ株式会社 High-voltage airtight terminal and method for producing the same
WO2014038261A1 (en) * 2012-09-04 2014-03-13 日本航空電子工業株式会社 Waterproof connector
JP2022081454A (en) * 2020-11-19 2022-05-31 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング Method and injection mold for manufacturing plug

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100880842B1 (en) * 2007-12-14 2009-02-02 주식회사 범천정밀 Apparatus for manufacturing shell of coaxial connector for portable telephone and thereof method
WO2010117000A1 (en) * 2009-04-08 2010-10-14 エヌイーシー ショット コンポーネンツ株式会社 High-voltage airtight terminal and method for producing the same
JP2010244927A (en) * 2009-04-08 2010-10-28 Nec Schott Components Corp High-voltage airtight terminal, and producing method therefor
CN102388508A (en) * 2009-04-08 2012-03-21 恩益禧肖特电子零件有限公司 High-voltage airtight terminal and method for producing the same
US8420933B2 (en) 2009-04-08 2013-04-16 Nec Schott Components Corporation High-pressure-resistant hermetic seal terminal and method of manufacturing the same
WO2014038261A1 (en) * 2012-09-04 2014-03-13 日本航空電子工業株式会社 Waterproof connector
JP2014049411A (en) * 2012-09-04 2014-03-17 Japan Aviation Electronics Industry Ltd Waterproof connector
KR20150036675A (en) * 2012-09-04 2015-04-07 니혼 고꾸 덴시 고교 가부시끼가이샤 Waterproof connector
US9564705B2 (en) 2012-09-04 2017-02-07 Japan Aviation Electronics Industry, Limited Waterproof connector
JP2022081454A (en) * 2020-11-19 2022-05-31 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング Method and injection mold for manufacturing plug

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