JP3636079B2 - The molded package and the light emitting device - Google Patents

The molded package and the light emitting device Download PDF

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Publication number
JP3636079B2
JP3636079B2 JP2001018509A JP2001018509A JP3636079B2 JP 3636079 B2 JP3636079 B2 JP 3636079B2 JP 2001018509 A JP2001018509 A JP 2001018509A JP 2001018509 A JP2001018509 A JP 2001018509A JP 3636079 B2 JP3636079 B2 JP 3636079B2
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resin
positive
emitting device
molded package
recess
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JP2002223004A (en )
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育也 新居
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日亜化学工業株式会社
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    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/26Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
    • H01L2224/31Structure, shape, material or disposition of the layer connectors after the connecting process
    • H01L2224/32Structure, shape, material or disposition of the layer connectors after the connecting process of an individual layer connector
    • H01L2224/321Disposition
    • H01L2224/32151Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
    • H01L2224/32221Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
    • H01L2224/32245Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42Wire connectors; Manufacturing methods related thereto
    • H01L2224/47Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/484Connecting portions
    • H01L2224/48463Connecting portions the connecting portion on the bonding area of the semiconductor or solid-state body being a ball bond
    • H01L2224/48465Connecting portions the connecting portion on the bonding area of the semiconductor or solid-state body being a ball bond the other connecting portion not on the bonding area being a wedge bond, i.e. ball-to-wedge, regular stitch
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42Wire connectors; Manufacturing methods related thereto
    • H01L2224/47Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/49Structure, shape, material or disposition of the wire connectors after the connecting process of a plurality of wire connectors
    • H01L2224/491Disposition
    • H01L2224/49105Connecting at different heights
    • H01L2224/49107Connecting at different heights on the semiconductor or solid-state body
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/73Means for bonding being of different types provided for in two or more of groups H01L2224/10, H01L2224/18, H01L2224/26, H01L2224/34, H01L2224/42, H01L2224/50, H01L2224/63, H01L2224/71
    • H01L2224/732Location after the connecting process
    • H01L2224/73251Location after the connecting process on different surfaces
    • H01L2224/73265Layer and wire connectors

Description

【0001】 [0001]
【発明の属する技術分野】 BACKGROUND OF THE INVENTION
本発明は、発光装置用のパッケージ成形体とそのパッケージ成形体を用いた発光装置に関する。 The present invention relates to a light emitting device using a molded package for a light emitting device and its molded package.
【0002】 [0002]
【従来の技術】 BACKGROUND OF THE INVENTION
近年、小型・薄型化を目的として、表面実装タイプの発光装置がリードタイプの発光装置に代えて多く使用されるようになって来ている。 Recently, for the purpose of smaller and thinner, the surface mounting type light-emitting device is becoming to be widely used in place of the light-emitting device of the lead type.
この面実装タイプの発光装置は、パッケージ成形体の凹部に発光素子チップが設けられ、その発光素子チップを覆うように透光性樹脂を充填することにより構成される。 The surface mount type light emitting device, the light emitting device chip is provided in the recess of the molded package, constituted by filling a translucent resin to cover the light emitting device chip. ここで、パッケージ成形体は、正及び負のリード電極が凹部の底面に露出されるように成形樹脂で一体成形されている。 Here, the molded package, the positive and negative lead electrodes are integrally molded by molding resin so as to be exposed at the bottom surface of the recess.
【0003】 [0003]
【発明が解決しようとする課題】 [Problems that the Invention is to Solve
しかしながら、今後面実装タイプの発光装置がより広く使用されるようになると、より厳しい環境条件に耐え得る発光装置が望まれるが、厳しい環境条件における使用を考えると、従来の面実装タイプの発光装置は、凹部に充填された透光性樹脂とパッケージ成形体との密着力が十分でないという問題点があった。 However, so in the future surface mount type light emitting device is used more widely, although the light emitting device capable of withstanding more severe environmental conditions are desired, strict considering the use in environmental conditions, conventional surface mounting type light emitting device the adhesion between the filled in recess translucent resin and the molded package is disadvantageously not sufficient.
【0004】 [0004]
そこで、本発明は、凹部に充填された透光性樹脂との密着力をより強くできるパッケージ成形体と、凹部に充填された透光性樹脂とパッケージ成形体との密着力をより強くでき、より信頼性の高い面実装タイプの発光装置を提供することを目的とする。 Accordingly, the present invention can more strongly and molded package can be more strongly adhesive force between the light-transmitting resin filled in the concave portion, the adhesion between the light-transmitting resin and molded package filled in the concave portion, and to provide a more reliable surface mount type light emitting device.
【0005】 [0005]
【課題を解決するための手段】 In order to solve the problems]
以上の目的を達成するために、本発明に係る発光装置用のパッケージ成形体は、発光素子チップを収納する凹部と正と負のリード電極とを有し、上記凹部の底面において上記正のリード電極と上記負のリード電極とが所定の間隔を隔てて露出するように上記正のリード電極及び上記負のリード電極が成形樹脂の注入により一体成形されてなるパッケージ成形体において、 上記正のリード電極又は負のリード電極は、上記凹部の縦軸に対して左右対称の位置に切り込み又は開口部を有すると共に、上記成形樹脂の注入側と反対の主面と端面とが交わる端部にバリが形成されており 、上記凹部の底面に、上記正のリード電極と上記負のリード電極の間の他に、上記成形樹脂が露出されてなる少なくとも一対の樹脂露出部が、上記凹部の縦軸に対し To achieve the above object, the molded package for a light-emitting device according to the present invention, and a concave portion and a positive and negative lead electrodes for accommodating a light emitting element chip, the positive lead on the bottom surface of the recess in the molded package of the positive lead electrode and the negative lead electrode as the electrode and the negative lead electrode are exposed at predetermined intervals, which are integrally formed by injection molding resin, the positive lead electrode or negative lead electrode, which has a cut or opening in symmetrical positions with respect to the longitudinal axis of the recess, the burr on the end of the injection side of the molding resin and the opposite major surface and the end surface intersects are formed, the bottom surface of the recess, the other between the positive lead electrode and the negative lead electrode, at least one pair of resin exposure part the molding resin is being exposed, the longitudinal axis of the recess against 左右対称に設けられたことを特徴とする このように構成されたパッケージ成形体は、発光素子チップを上記凹部に設け、透光性樹脂を上記凹部に充填した時に、凹部の底面において縦軸に対して左右対称に設けられた上記一対の樹脂露出部の樹脂と透光性樹脂とを接合できるので、上記樹脂露出部を設けない場合及び樹脂露出部を左右対称に設けていない場合に比較して、該透光性樹脂とパッケージ成形体との接合強度を強くできる。 Thus constituted molded package, characterized in that provided in symmetrical, the light emitting device chip provided in the recess, the translucent resin when filled in the concave portion, the vertical axis in the bottom surface of the recess since it joined the the pair of resin exposure parts of the resin and the translucent resin provided symmetrically against, compared with the case provided with no case and resin exposed portion is not provided the resin exposed portion symmetrically Te, can be strongly bonding strength between the light-transmitting resin and the molded package.
これにより、本発明に係る発光装置用のパッケージ成形体は、例えば、気化膨張等に起因する上記透光性樹脂と上記パッケージ成形体との界面の剥離を効果的に防止することができる。 Thus, the molded package for a light-emitting device according to the present invention, for example, it is possible to effectively prevent peeling of the interface between the translucent resin and the molded package due to the vaporization expansion or the like.
また、本発明に係る発光装置用のパッケージ成形体では、樹脂露出部が、上記凹部の縦軸に対して左右対称に設けられているので発光装置の指向特性を左右対称にできる。 Further, in the molded package for a light-emitting device according to the present invention, the resin exposed portion can be symmetrically directional characteristics of the light emitting device so provided symmetrically with respect to the longitudinal axis of the recess.
また、この樹脂露出部は正又は負の電極リードに切り込み等を形成してその切り込み等の内部に成形樹脂が充填されているので、正又は負の電極リードと成形樹脂とを強固に固定でき、正又は負の電極リードと成形樹脂との剥離も防止できる。 Further, the resin exposed portions since internal molding resin of the notch or the like to form a like cut in the positive or negative electrode lead is filled, the positive or negative electrode lead and the molded resin can firmly fixed , separation of the positive or negative electrode lead and the molded resin can be prevented.
これにより、本発明に係る発光装置用のパッケージ成形体によれば、指向特性を左右対称にでき、かつ従来例に比較してより厳しい使用環境にも耐えることができる信頼性の高い発光装置を構成できる。 Thus, according to the molded package for a light-emitting device according to the present invention, can directivity characteristics symmetrically, and a highly reliable light emitting device which can withstand more severe use environment as compared to the prior art It can be configured.
【0006】 [0006]
また、本発明に係る発光装置用のパッケージ成形体においては、パッケージ成形体における正及び負の電極リードと成形樹脂とをより強固に固定しかつ透光性樹脂とパッケージ成形体との接合強度をよりいっそう強くするために、上記樹脂露出部は、上記正のリード電極側と上記負のリード電極側とにそれぞれ少なくとも1対設けられることが好ましい。 In the molded package for a light-emitting device according to the present invention, the bonding strength between the positive and negative electrode lead and the molded resin more firmly fixed vital translucent resin and the molded package in the molded package to more strongly, the resin exposed portion is preferably provided at least one pair each of the above positive lead electrode side and the negative lead electrode.
【0007】 [0007]
また、本発明に係る発光装置は、本発明に係る発光装置用のパッケージ成形体と、該パッケージ成形体の上記凹部に設けられた発光素子チップとを備え、該発光素子チップが上記凹部内で透光性樹脂によってモールドされてなる。 The light emitting device according to the present invention includes a molded package for a light-emitting device according to the present invention, a light emitting device chip provided in the recess of the molded package, the light emitting device chip is within the recess It formed by molded with translucent resin.
このように構成された本発明に係る発光装置は、上記凹部の底面の樹脂露出部の樹脂と透光性樹脂とを接合できるので、該透光性樹脂とパッケージ成形体との接合強度をより強くできる。 The light emitting device according to the present invention configured as described above, since it bonded to the resin and the transparent resin of the resin exposed portion of the bottom surface of the recess, the bonding strength between the light-transmitting resin and the molded package more It can be strong.
これにより、本発明に係る発光装置は、従来例に比較して、より厳しい使用環境にも耐えることができ、信頼性をより高くできる。 Thus, the light emitting device according to the present invention, as compared with the conventional example, also be capable of withstanding more severe operating environment can be further increased reliability.
【0008】 [0008]
【発明の実施の形態】 DETAILED DESCRIPTION OF THE INVENTION
以下、本発明に係る実施の形態の発光装置について説明する。 The following describes the light-emitting device of the embodiment according to the present invention.
本発明に係る実施の形態の発光装置は、以下のように構成される。 The light emitting device of the embodiment according to the present invention has the following construction.
本実施の形態の発光装置において、パッケージ成形体1は、例えば図1(a)に示すように、正のリード電極21と負のリード電極22とが成形樹脂10によって一体成形されて作製される。 In the light emitting device of the present embodiment, the molded package 1, as shown in FIG. 1 (a), the positive lead electrode 21 and the negative lead electrode 22 is made it is integrally molded by a molding resin 10, for example .
詳細に説明すると、パッケージ成形体1の上面には、発光素子チップ30を収納する凹部14が形成され、その凹部14の底面には、正のリード電極21と負のリード電極22とが互いに分離されてそれぞれの一方の主面が露出するように設けられる。 In detail, the upper surface of the molded package 1, formed recesses 14 for accommodating the light-emitting element chip 30, on the bottom surface of the recess 14, the positive lead electrode 21 and the negative lead electrode 22 is separated from each other is one of the main surfaces of each of which is provided so as to be exposed it is.
尚、本明細書において、パッケージ成形体1の上面とは、発光素子チップが載置される側の面をいい、下面とは実装基板に対向する面のことをいう。 In the present specification, the upper surface of the molded package 1, means a surface on which the light emitting device chip is mounted, refers to a surface which is a lower surface opposed to the mounting substrate.
【0009】 [0009]
また、正のリード電極21の一端と負のリード電極22の一端とは凹部14の底部において互いに対向するように設けられ、正のリード電極21の一端と負のリード電極22の一端との間には成形樹脂が充填され、凹部14の底面が形成される。 The positive of one end and one end of the negative lead electrode 22 of the lead electrode 21 is provided so as to face each other in the bottom of the recess 14, the positive between one end and the one end of the negative lead electrode 22 of the lead electrode 21 molding resin is filled in, the bottom surface of the recess 14 is formed.
また、パッケージ成形体1において、正のリード電極21の他端と負のリード電極22の他端とは、パッケージ成形体1の端面から突き出すように設けられ、その突き出した部分が図1(b)に示すようにパッケージ成形体1の下面である接合面の内側に折り曲げられて正負の接続端子部が構成される。 Further, in the molded package 1, and is positive the other end and the other end of the negative lead electrode 22 of the lead electrodes 21, provided so as to protrude from the end face of the molded package 1, the projecting portion in FIG. 1 (b ) to be bent inward of the joining surface is a lower surface of the molded package 1 as shown consists positive and negative connection terminal.
【0010】 [0010]
ここで、特に本実施の形態の発光装置では、パッケージ成形体1の接合面において、折り曲げられた正のリード電極21の他端に沿って第1凸部11が成形樹脂10と一体で形成され、折り曲げられた負の電極リード22の他端に沿って第2凸部12が成形樹脂10と一体で形成されたことを特徴とし、これにより実施の形態の発光装置を基板上に実装する際のはんだ付け不良を低減している。 Here, in particular in the light emitting device of the present embodiment, in the joint surface of the molded package 1, the first convex portion 11 along the folded positive end of the lead electrode 21 is formed integrally with the molded resin 10 , when the second convex portion 12 along the negative end of the electrode lead 22 which is bent is characterized in that it is formed integrally with the molded resin 10, thereby the light-emitting device of the embodiment will be mounted on a substrate of it is reduced soldering defects.
また、本実施の形態の発光装置において、第1凸部11と第2凸部12は互いに同一形状でかつ断面形状が方形又は台形になるように形成することが好ましい。 In the light emitting device of the present embodiment, it is preferred that the first protrusion 11 second protrusion 12 which is the same shape in and cross-sectional shapes are formed to be rectangular or trapezoidal.
さらに、正負の電極リードの実装基板に対向する外表面と第1凸部11及び第2凸部12の実装基板の外表面とは、それぞれが実装基板と接触するように、実質的に同一平面上に位置するように構成されることが好ましい。 Furthermore, the outer surface and the mounting substrate of the outer surface of the first convex portion 11 and the second convex portion 12 which faces the mounting board of the positive and negative electrode lead, such that each contact with the mounting substrate, substantially coplanar it is preferably configured to be positioned above.
以上のように構成されたパッケージ成形体1の凹部14に、発光素子チップが設けられれ、凹部14内に発光素子チップを覆うように透光性樹脂が充填されて実施の形態の発光装置は構成される。 The recess 14 of the molded package 1 configured as described above, the light-emitting element chips are is provided, the light-emitting device of the embodiment with a translucent resin is filled so as to cover the light-emitting element chip in the recess 14 configuration It is.
【0011】 [0011]
次に、本実施の形態の発光装置の製造方法について説明する。 Next, a method for manufacturing a light-emitting device of the present embodiment.
(ステップ1) (Step 1)
本製造方法において、ステップ1ではまず、例えば、0.15mm厚の鉄入り銅からなる長尺金属板をプレスを用いた打ち抜き加工により各パッケージ成形体の正負のリード電極となる複数の部分を形成する。 In this manufacturing method, in Step 1 First, for example, a plurality of portions to be the positive and negative lead electrodes of the molded package by punching using a press the long metal plate made of 0.15mm thick iron-containing copper formed to.
ここで、本実施の形態において、プレスの打ち抜き方向(ダイに対してポンチを移動させる方向)は、後述の射出成形において、成形樹脂を流す方向と一致させる。 Here, in this embodiment, the punching direction of the press (the direction of moving the punch relative to the die), in injection molding to be described later, to coincide with the direction of flow molding resin.
【0012】 [0012]
プレス加工後の長尺金属板の各パッケージ成形体に対応する部分において、正のリード電極21は、成形後の凹部14の底面においてその一端面が負のリード電極22の一端面と対向するように負のリード電極22とは分離されている。 In the portion corresponding to the molded package long metal plate after pressing, the positive lead electrode 21, so that one end surface in the bottom surface of the recess 14 after molding is one end surface facing the negative lead electrode 22 It is separated from the negative lead electrode 22.
また、正のリード電極21には、成形樹脂との結合強度を強くするために、正のリード電極21の一端面に垂直な中心線を軸とする開口部が形成され、負のリード電極22には、成形樹脂との結合強度を強くするために、負のリード電極22の一端面に垂直な中心線を軸とする開口部が形成されている。 Furthermore, the positive lead electrode 21, in order to increase the bond strength of the molding resin, the positive opening an axis perpendicular centerline on one end surface of the lead electrode 21 is formed, the negative lead electrode 22 the, in order to increase the bond strength of the molding resin, the openings having axes perpendicular centerline on one end surface of the negative lead electrode 22 is formed.
この開口部はパッケージ成形体の端部の内側と外側に跨って位置するように設けられ、正と負のリード電極21,22と成形樹脂との結合強度を強くするとともに、パッケージ成形体1の端面から突き出した正のリード電極21と負のリード電極22とを、パッケージ樹脂に大きな力がかからないように端子構造がJ−ベンド(Bend)構造になるように曲げることができる。 This opening is provided so as to be positioned across the inner and outer end portions of the molded package, as well as strong bonding strength between the positive and negative lead electrodes 21 and 22 and the molding resin, the molded package 1 a positive lead electrode 21 protruding from the end surface and the negative lead electrode 22 can be bent so that the terminal structure as not to apply a large force to the package resin is J- Bend (Bend) structure.
さらに、正のリード電極21にはその一端面に垂直な中心線に対して左右対称の位置に2つの切り込み又は開口部が形成され、負のリード電極22にはその一端面に垂直な中心線に対して左右対称の位置に2つの切り込み又は開口部が形成されている。 Furthermore, positive in two notches or openings at positions symmetrical are formed with respect to a vertical center line on one end surface to the lead electrodes 21, the vertical center line on one end surface to the negative lead electrode 22 two notches or openings are formed at positions symmetrical with respect to.
この正の電極リード及び負の電極リードにおいて左右対称の位置に形成された切り込み又は開口部は、射出成形後にそれぞれ切り込みの先端部分又は開口部が凹部14の底面に位置するような深さ又は位置に形成される。 Cut or opening formed in a position symmetrical in the positive electrode lead and negative electrode lead, depth or a position at the bottom surface of the tip portion or opening recess 14 of the notch respectively after the injection molding It is formed on.
ここで、本実施の形態では、正のリード電極21の一端面に垂直な中心線と負のリード電極22の一端面に垂直な中心線は互いに一致させ、その中心線が凹部14の縦軸(本明細書において、凹部14の直交する2つの軸のうちの上記中心軸と一致させる一方の軸を便宜上、縦軸と称し、他方の軸を横軸と称する。)と一致するように樹脂成形される。 In the present embodiment, positive vertical center line on one end surface of the lead vertical center line on one end face of the electrode 21 and the negative lead electrode 22 is made to coincide with each other, the longitudinal axis of the center line the recess 14 (in this specification, for convenience the one axis to coincide with the central axis of the two orthogonal axes of the recess 14, referred to as the vertical axis, the other axis is referred to as a horizontal axis.) resin so as to match the It is molded.
【0013】 [0013]
(ステップ2) (Step 2)
ステップ2では、ステップ1で打ち抜き加工した長尺金属板を、Agメッキを施した後、成形金型内にセットして、射出成形により各パッケージ成形体に対応する部分にそれぞれ成形樹脂部10を形成する。 In step 2, the long metal plate punched in Step 1, was subjected to Ag plating, and set in a molding die, respectively molded resin portion 10 at a portion corresponding to the molded package by injection molding Form.
【0014】 [0014]
本実施の形態において、成形樹脂部10を成形するための成形金型は、 In this embodiment, the molding die for molding the molded resin portion 10,
(1)成形樹脂部10において、ゲートの両側の接合面に峰状の第1凸部11と第2凸部12が形成されるように、 (1) in the molding resin part 10, so that the bonding surface of both sides of the gate first convex portion 11 and the second convex portions 12 of Minejo is formed,
(2)成形樹脂部10において、接合面と反対側の面に、発光素子チップを収納するための凹部14がパッケージ成形体の縦軸に対して対称に形成されるように、 (2) in the molding resin part 10, on the surface opposite to the bonding surface, as the concave portion 14 for accommodating a light emitting element chip is formed symmetrically with respect to the longitudinal axis of the molded package,
(3)凹部14の底面に、互いに分離された正のリード電極21と負のリード電極22が露出し、かつ正のリード電極21と負のリード電極22の間に成形樹脂が充填されるように、 (3) to the bottom surface of the recess 14, to expose the positive lead electrode 21 and the negative lead electrode 22 which are separated from each other, and as a positive molding resin between the lead electrode 21 and the negative lead electrode 22 is filled to,
(4)凹部14の底面に位置する正のリード電極21において、凹部14の縦軸に対して対称に2つの樹脂露出部21aが形成され、凹部14の底面に位置する負のリード電極22において、凹部14の縦軸に対して対称に2つの樹脂露出部22aが形成されるように、作製される。 (4) in the positive lead electrode 21 located on the bottom surface of the recess 14, two resin exposed portion 21a symmetrically about the longitudinal axis of the recess 14 is formed at the negative lead electrode 22 positioned on the bottom surface of the concave portion 14 as the two resins exposed portion 22a symmetrically is formed with respect to the longitudinal axis of the recess 14, it is manufactured.
【0015】 [0015]
また、本実施の形態において、成形金型のゲートは、樹脂がパッケージ成形体1の接合面側から注入されるように接合面における第1凸部11と第2凸部12の間の位置に設けられ、成形金型において、プレス加工された長尺金属板は、プレスの打ち抜き方向と成形金型内に樹脂を注入する方向とが一致するように設けられる。 Further, in this embodiment, the gate of the forming mold, at a position between the first protrusion 11 and the second convex portions 12 at the joint plane so that the resin is injected from the joint surface side of the molded package 1 provided, in the molding die, a long metal plate stamped is provided to the direction in which the resin is injected into the punching direction and molding die of the press are identical.
このように、本実施の形態では、パッケージ成形体1を作製する時に、プレスの打ち抜き方向と樹脂を注入する方向を一致させることにより、正及び負のリード電極21,22の一端面21ef,22efにより形成される空間に隙間なく充填することができ、注入される成形樹脂の一方の主面21f1,22f1上への流出を阻止することができる。 Thus, in the present embodiment, when producing a molded package 1, by matching the direction of injecting the punching direction and a resin of the press, one end face of the positive and negative lead electrodes 21,22 21ef, 22ef it can be filled without a gap in a space formed by the outflow onto one main surface 21f1,22f1 of injected molded resin can be prevented.
【0016】 [0016]
すなわち、プレス打ち抜き加工において、受側の金型であるダイを正及び負のリード電極21,22の一方の表面21f1,22f1に接するように長尺金属板201をセットし、ポンチを正及び負のリード電極21,22の他方の表面21f2,22f2側から移動させて打ち抜いているので、正と負のリード電極21,22はそれぞれ、他方の主面21f2,22f2と一端面21ef,22efとの交わる端部21e,22eの内角θが鈍角になる(図4(a))。 That is, in the stamping, sets the elongate metal plate 201 so as to contact the die is a die receiving-side on one surface 21f1,22f1 of positive and negative lead electrodes 21 and 22, the punch positive and negative of since punching is moved from the other surface 21f2,22f2 side of the lead electrodes 21 and 22, respectively positive and negative lead electrodes 21 and 22, the other main surface 21f2,22f2 one end face 21Ef, and 22ef end 21e, 22e interior angle θ of an obtuse angle of intersection (Figure 4 (a)).
これにより、図4(a)において矢印で示す方向から注入される成形樹脂は、端部21e,22eにおいて流れが阻害されることがないので、底面14fに対応して形成された成形金型の面と正及び負のリード電極21,22の一端面21ef,22efにより形成される空洞に隙間なく充填することができる。 Thus, the molding resin is injected from a direction indicated by an arrow in FIG. 4 (a), the end portion 21e, since no flow is inhibited in 22e, the forming mold which is formed corresponding to the bottom surface 14f one end surface 21ef surface and the positive and negative lead electrodes 21 and 22, it can be filled without gaps in the cavity formed by 22Ef.
また、プレス打ち抜き加工において、上述のようにポンチを正及び負のリード電極21,22の他方の表面21f2,22f2側から移動させて打ち抜いているので、正と負のリード電極21,22はそれぞれ、一方の主面21f1,22f1と一端面21ef,22efとの交わる端部にバリ21h,22hが形成される(図4(a))。 Further, in the press punching, because the punched punch is moved from the positive and the other surface 21f2,22f2 side of the negative lead electrodes 21 and 22 as described above, the positive and negative lead electrodes 21 and 22 respectively , one main surface 21f1,22f1 one end face 21Ef, burr on the end intersects with 22ef 21h, 22h are formed (Figure 4 (a)).
このように、一方の主面21f1,22f1と一端面21ef,22efとの交わる端部の内角が鋭角になるように盛りあがったバリ21h,22hが形成されるので、注入される成形樹脂の一方の主面21f1,22f1上への流出を、バリ21h,22hにより阻止することができ、発光素子のダイボンディング不良及びワイヤボンディング不良を防止できる。 Thus, one main surface 21f1,22f1 one end face 21Ef, burrs interior angle end intersects with 22ef is raised so that an acute angle 21h, since 22h are formed, one of the molding resin to be injected the outflow onto the main surface 21F1,22f1, burrs 21h, can be prevented by 22h, it can be prevented die bonding defect and wire bonding failure of the light emitting element.
また、本発明において、一端面21ef,22efにより形成される空洞に注入される樹脂は、その注入された樹脂の上面が一方の主面21f1,22f1と略同一平面上に位置するようにすることが好ましい。 Further, in the present invention, one end surface 21Ef, resin is injected into the cavity formed by the 22ef is the upper surface of the injected resin is to be positioned on one major surface 21f1,22f1 and on substantially the same plane It is preferred. このようにすると、透光性樹脂41を形成したときに、その透光性樹脂41にバリ21h,22hがくい込むような状態にでき、これにより、透光性樹脂41とパッケージ成形体1との接合を強くできる。 In this way, at the time of forming the translucent resin 41, the translucent resin 41 in burr 21h, can in a state such that 22h is bite, thereby, the translucent resin 41 and the molded package 1 joining the can strongly.
【0017】 [0017]
これに対して、プレスの打ち抜き方向と樹脂を注入する方向を逆にした場合には、図4(b)において矢印で示す方向から注入される成形樹脂は、バリ21h,22hが形成された端部において樹脂の流れが阻害され、バリ21h,22hの近傍に空洞21g,22gが形成され、正負の電極リードと成形樹脂とが剥がれやすくなる等の問題が生じる。 End If the result of the direction of injecting the punching direction and a resin of the press Conversely, molding resin is injected from a direction indicated by an arrow in FIG. 4 (b), a burr 21h, 22h are formed flow of the resin is inhibited in part, burr 21h, the cavity 21g in the vicinity of the 22h, 22 g is formed, the positive and negative electrode leads and the molding resin or the like becomes easily peeled off problems.
さらに、端部21e,22eの角θが鈍角になるので、図4(b)において矢印で示す方向から注入される成形樹脂は、凹部の底面において端部21e,22eから表面21f2,22f2上に流出し易くなり、図4(b)に示すように、凹部14の底面において、正の電極リード21の表面21f1上と負の電極リード22の表面22f1上とに成形樹脂が流出するという問題があり、ボンディング不良の原因となるという問題がある。 Further, the end portion 21e, since the angle of 22e theta is an obtuse angle, the molding resin is injected from a direction indicated by an arrow in FIG. 4 (b), an end portion 21e in the bottom surface of the recess, on the surface 21f2,22f2 from 22e spill easily, as shown in FIG. 4 (b), in the bottom surface of the recess 14, a problem that positive molding resin into an upper surface 22f1 of the surface 21f1 on the negative electrode lead 22 of the electrode lead 21 flows out Yes, there is a problem that the cause of the defective bonding.
【0018】 [0018]
(ステップ3) (Step 3)
ステップ3では、図2(a)(b)に示すように、凹部14の底面に露出した負のリード電極22上に、発光素子チップ30を設け、そのn電極33と負のリード電極22とをワイヤボンディングにより接続し、p電極34と正のリード電極21とをワイヤボンディングにより接続する。 In step 3, as shown in FIG. 2 (a) (b), on the negative lead electrode 22 exposed on the bottom of the recess 14, the light-emitting element chip 30 is provided, and its n-electrode 33 and the negative lead electrode 22 It was connected by wire bonding, and a p electrode 34 and the positive lead electrode 21 are connected by wire bonding.
ここで、発光素子チップ30は、例えば、青色の発光が可能な窒化ガリウム系化合物半導体素子であり、該素子は、例えばサファイア基板31上にn型層、活性層及びp型層を含む窒化物半導体層32が形成され、活性層及びp型層の一部を除去して露出させたn型層の上にn電極33が形成され、p型層の上にp電極34が形成されてなる。 Here, the light-emitting element chips 30 is, for example, a semiconductor element gallium nitride compound capable blue emission, the element, for example n-type layer on the sapphire substrate 31, nitride containing an active layer and a p-type layer semiconductor layer 32 is formed, n electrode 33 on the active layer and the p-type layer n-type layer partially exposed by removing the is formed, p electrode 34 is formed on the p-type layer .
【0019】 [0019]
(ステップ4) (Step 4)
ステップ4では、凹部14に、発光素子チップ30を覆うように透光性樹脂41が充填される。 In Step 4, the recess 14, the translucent resin 41 is filled so as to cover the light-emitting element chip 30.
本実施の形態では、パッケージ成形体1の凹部14の底面14fに、正のリード電極21に形成された切り込みの先端部又は開口部を介して成形樹脂が凹部14の底面14fに露出し、負のリード電極22に形成された切り込みの先端部又は開口部を介して成形樹脂が凹部14の底面14fに露出しているので、露出した成形樹脂と透光性樹脂とが強固に接合され、透光性樹脂41とパッケージ成形体1との接合を強くできる。 In this embodiment, the bottom surface 14f of the concave portion 14 of the molded package 1, the molding resin is exposed on the bottom 14f of the concave portion 14 through the distal end or opening of the notch formed on the positive lead electrode 21, a negative of the tip portion or the opening portion forming resin through the notch formed in the lead electrode 22 are exposed on the bottom surface 14f of the recess 14, and the exposed molded resin and the transparent resin are firmly bonded, Toru the bonding between the optical resin 41 and the molded package 1 can be increased.
特に、本実施の形態においては、凹部14の底面14fに位置する正のリード電極21にパッケージの縦軸に対して左右対称に2つの樹脂露出部21aが形成され、凹部14の底面14fに位置する負のリード電極22にパッケージの縦軸に対して左右対称に2つの樹脂露出部22aが形成されているので、左右対称の配置をとらない場合に比較して、透光性樹脂41とパッケージ成形体1との接合をより強くできる。 In particular, in this embodiment, two resin exposed portion 21a symmetrically to the positive lead electrode 21 located on the bottom surface 14f of the concave portion 14 with respect to package the longitudinal axis of is formed, positioned on the bottom surface 14f of the concave portion 14 since the two resin exposed portion 22a symmetrically to the negative lead electrode 22 to the longitudinal axis of the package that is formed, as compared with the case does not take place symmetrically, translucent resin 41 and the package the bonding of the molded body 1 can be more strongly.
また、本実施の形態においては、凹部14の縦軸に対して左右対称に2つの樹脂露出部21aが形成され、凹部14の縦軸に対して左右対称に2つの樹脂露出部22aが形成されているので、左右対称の指向特性が得られる。 Further, in this embodiment, it is formed of two resin exposed portion 21a symmetrically to the longitudinal axis of the recess 14, two resin exposed portion 22a symmetrically to the longitudinal axis of the recess 14 is formed since it is, the directional characteristics of the symmetrical is obtained.
【0020】 [0020]
(ステップ5) (Step 5)
ステップ5では、個々の素子に分離する。 In step 5, to separate the individual devices.
(ステップ6) (Step 6)
ステップ6では、図1(b)に示すように、パッケージ成形体1の端面から突き出した正のリード電極21と負のリード電極22とを、図1(b)に示すようにパッケージ成形体1の接合面の内側に折り曲げて、J−ベンド(Bend)型の正負の接続端子部を構成する。 In step 6, as shown in FIG. 1 (b), the positive lead electrode 21 protruding from the end surface of the molded package 1 and the negative lead electrode 22, the molded package, as shown in FIG. 1 (b) 1 by bending of the inner joint surface, constituting the positive and negative connecting terminal portion of the J- Bend (Bend) type. 尚、本発明の接続端子部の構造は、J−ベンド(Bend)型に限られるものではなく、ガルウィング型等の他の構造であってもよい。 The structure of the connection terminal portions of the present invention is not limited to the J- Bend (Bend) type, but may be other structures gull wing type.
以上のようなステップで本実施の形態の発光装置は作製される。 The light emitting device of the present embodiment in the above-described steps are produced.
【0021】 [0021]
以上のようにして作製された実施の形態の発光装置は、図3に示すように、実装基板60の上に以下のようにして面実装される。 Above embodiment has been fabricated as a light emitting device, as shown in FIG. 3, it is surface-mounted in the following manner on the mounting substrate 60.
最初に、本実施の形態の発光装置において、接合面における第1凸部11と第2凸部12の間に仮固定用の熱硬化性樹脂52をディスペンサーにより塗布し、実装基板60上に、正のリード電極21と正の電極パターン61とが対向し、負のリード電極22と負の電極パターン62とが対向するように、本実施の形態の発光装置を載置する。 First, in the light emitting device of the present embodiment, the first convex portion 11 with a thermosetting resin 52 temporary fixing between the second convex portion 12 is coated by a dispenser at the bonding surface, on the mounting substrate 60, positive faces the lead electrode 21 and the positive electrode pattern 61, the negative lead electrode 22 and negative electrode patterns 62 to face, for placing the light-emitting device of the present embodiment.
次に、棒状ヒーター又はパネルヒーター等により予備加熱を行い、熱硬化性樹脂52を硬化させることにより仮固定する(予備加熱工程)。 Next, the pre-heated by the rod-shaped heater or panel heater or the like, it is temporarily fixed by curing the thermosetting resin 52 (preheating step).
そして、実装基板60を発光装置が仮固定された面を下にして、その面を加熱溶融した半田浴に浸漬させることにより半田付けを行う。 Then, a surface emitting device is temporarily fixed mounting substrate 60 facing down, performing soldering by dipping the surface to heat the molten solder bath.
半田付け後、冷却する。 After soldering, to cool.
【0022】 [0022]
以上のように構成された実施の形態の発光装置は、パッケージ成形体1の接合面に第1凸部11と第2凸部12を設けているので、仮固定用の樹脂52をディスペンサーにより塗布して実装基板に仮固定したときに、はんだ付け部分に樹脂52が付着することを防止でき、実装時におけるはんだ付け不良を防止できる。 Above embodiment constructed as the light-emitting device applied, since the first convex portion 11 on the bonding surface of the molded package 1 is provided with a second convex portion 12, the resin 52 for temporary fixing by a dispenser when temporarily fixed to and mounted substrate, it is possible to prevent the resin 52 from adhering to the soldering portion, it is possible to prevent soldering defects during mounting.
【0023】 [0023]
【発明の効果】 【Effect of the invention】
以上詳細に説明したように、本発明に係る発光装置用のパッケージ成形体は、上記凹部の底面に、上記正のリード電極と上記負のリード電極の間の他に、上記成形樹脂が露出されてなる少なくとも一対の樹脂露出部を上記凹部の縦軸に対して左右対称に設けられているので、透光性樹脂を上記凹部に充填した時に、凹部の底面において縦軸に対して左右対称に設けられた上記一対の樹脂露出部の樹脂と透光性樹脂とを接合できる。 As described above in detail, the molded package for a light-emitting device according to the present invention, the bottom surface of the recess, the other between the positive lead electrode and the negative lead electrode, the molding resin is exposed since is provided symmetrically at least one pair of resin exposure parts with respect to the longitudinal axis of the recess becomes Te, the translucent resin when filled in the recesses, symmetrically with respect to the longitudinal axis at the bottom of the recess the pair of resin exposure parts of the resin provided and a translucent resin can be joined to.
これにより、本発明に係る発光装置用のパッケージ成形体は、上記樹脂露出部を設けない場合及び樹脂露出部を左右対称に設けていない場合に比較して、該透光性樹脂とパッケージ成形体との接合強度を強くでき、例えば、気化膨張等に起因する上記透光性樹脂と上記パッケージ成形体との界面の剥離を効果的に防止することができる。 Thus, the molded package for a light-emitting device according to the present invention, as compared with the case provided with no case and resin exposed portion is not provided the resin exposed portion symmetrically, the light-transmitting resin and the molded package bonding strength between the can strongly, for example, it is possible to effectively prevent peeling of the interface between the translucent resin and the molded package due to the vaporization expansion or the like.
また、本発明に係る発光装置用のパッケージ成形体では、樹脂露出部が、上記凹部の縦軸に対して左右対称に設けられているので発光装置の指向特性を左右対称にできる。 Further, in the molded package for a light-emitting device according to the present invention, the resin exposed portion can be symmetrically directional characteristics of the light emitting device so provided symmetrically with respect to the longitudinal axis of the recess.
また、この樹脂露出部は正又は負の電極リードに切り込み等を形成してその切り込み等の内部に成形樹脂が充填されるので、正又は負の電極リードと成形樹脂とを強固に固定でき、正又は負の電極リードと成形樹脂との剥離も防止できる。 Further, the resin exposed portions since internal molding resin of the notch or the like to form a like cut in the positive or negative electrode lead is filled, the positive or negative electrode lead and the molded resin can firmly fixed, separation of the positive or negative electrode lead and the molded resin can be prevented.
これにより、本発明に係る発光装置用のパッケージ成形体によれば、指向特性を左右対称にでき、かつ従来例に比較してより厳しい使用環境にも耐えることができる信頼性の高い発光装置を構成できる。 Thus, according to the molded package for a light-emitting device according to the present invention, can directivity characteristics symmetrically, and a highly reliable light emitting device which can withstand more severe use environment as compared to the prior art It can be configured.
【0024】 [0024]
また、本発明に係る発光装置は、上記凹部の底面の樹脂露出部の樹脂と透光性樹脂とを接合できるので、従来例に比較して、より厳しい使用環境にも耐えることができ、信頼性をより高くできる。 The light emitting device according to the present invention, it is possible to bond the resin and the transparent resin of the resin exposed portion of the bottom surface of the recess, as compared with the conventional example, also be capable of withstanding more severe operating environment, reliable sex and can be higher.
【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS
【図1】 (a)は本発明に係る実施の形態の発光装置の斜め上方向から見た斜視図であり、(b)は本発明に係る実施の形態の発光装置の斜め下方向から見た斜視図である。 1 (a) is a perspective view seen obliquely from above of the light-emitting device of the embodiment according to the present invention, seen from (b) is an oblique downward direction of the light emitting device of the embodiment according to the present invention and a perspective view.
【図2】 (a)は、パッケージ成形体の凹部14に発光素子チップを設け、その凹部14に透光性樹脂を充填した後の実施の形態の発光装置の平面図であり、(b)は(a)のB−B'線についての断面図である。 2 (a) is, the light emitting device chip provided in the recess 14 of the molded package, a plan view of the light-emitting device of the embodiment after filling the translucent resin in the concave portion 14, (b) is a sectional view taken along the line B-B 'in (a).
【図3】 本実施の形態の発光装置を基板上に実装したときの断面図である。 [3] The light-emitting device of the present embodiment is a cross-sectional view when mounted on a substrate.
【図4】 図1(a)のA−A'線についての断面の一部を示す断面図である。 4 is a sectional view showing a part of a cross-section of the line A-A 'in FIG. 1 (a).
【符号の説明】 DESCRIPTION OF SYMBOLS
1…パッケージ成形体、 1 ... the molded package,
10…成形樹脂、 10 ... the molded resin,
11…第1凸部、 11 ... the first convex portion,
12…第2凸部、 12 ... the second convex portion,
14…凹部、 14 ... recess,
14f…底面、 14f ... the bottom,
21…正のリード電極、 21 ... positive lead electrode,
22…負のリード電極、 22 ... negative lead electrode,
21a,22a…切り込み、 21a, 22a ... cuts,
21b,22b…開口部、 21b, 22b ... opening,
30…発光素子チップ、 30 ... the light-emitting element chip,
41…透光性樹脂、 41 ... translucent resin,
52…仮固定用の樹脂、 52 ... temporary fixing of the resin,
60…実装基板。 60 ... mounting board.

Claims (3)

  1. 発光素子チップを収納する凹部と正と負のリード電極とを有し、上記凹部の底面において上記正のリード電極と上記負のリード電極とが所定の間隔を隔てて露出するように上記正のリード電極及び上記負のリード電極が成形樹脂の注入により一体成形されてなるパッケージ成形体において、 And a concave portion and a positive and negative lead electrodes for accommodating a light emitting element chip, the bottom surface of the recess and the positive lead electrode and the negative lead electrode of the positive to expose at a predetermined distance in the molded package to the lead electrodes and the negative lead electrode is integrally formed by injection of the molding resin,
    上記正のリード電極又は負のリード電極は、上記凹部の縦軸に対して左右対称の位置に切り込み又は開口部を有すると共に、上記成形樹脂の注入側と反対の主面と端面とが交わる端部にバリが形成されており The positive lead electrode or negative lead electrode, which has a cut or opening in symmetrical positions with respect to the longitudinal axis of the recess, the end of the injection side of the molding resin and the opposite major surface and the end surface intersects and burrs formed in the part,
    上記凹部の底面に、上記正のリード電極と上記負のリード電極の間の他に、上記成形樹脂が露出されてなる少なくとも一対の樹脂露出部が、上記凹部の縦軸に対して左右対称に設けられたことを特徴とするパッケージ成形体。 The bottom surface of the recess, the other between the positive lead electrode and the negative lead electrode, at least one pair of resin exposure part the molding resin is being exposed, symmetrically with respect to the longitudinal axis of the recess molded package, characterized in that provided.
  2. 上記樹脂露出部は、上記正のリード電極側と上記負のリード電極側とにそれぞれ少なくとも1対設けられた請求項1記載のパッケージ成形体。 The resin exposed portion, the positive lead electrode side and the negative lead electrode side and the molded package in which at least one pair provided with claim 1, respectively.
  3. 請求項1又は2に記載のパッケージ成形体と、該パッケージ成形体の上記凹部に設けられた発光素子チップとを備え、該発光素子チップが上記凹部内で透光性樹脂によってモールドされてなる発光装置。 A molded package according to claim 1 or 2, and a light emitting device chip provided in the recess of the molded package, the light emitting device chip is formed by molded by translucent resin in the recess emission apparatus.
JP2001018509A 2001-01-26 2001-01-26 The molded package and the light emitting device Active JP3636079B2 (en)

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JP4631175B2 (en) * 2001-01-26 2011-02-23 日亜化学工業株式会社 The molded package and the light emitting device
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US20050104072A1 (en) 2003-08-14 2005-05-19 Slater David B.Jr. Localized annealing of metal-silicon carbide ohmic contacts and devices so formed
US7029935B2 (en) 2003-09-09 2006-04-18 Cree, Inc. Transmissive optical elements including transparent plastic shell having a phosphor dispersed therein, and methods of fabricating same
US7183587B2 (en) 2003-09-09 2007-02-27 Cree, Inc. Solid metal block mounting substrates for semiconductor light emitting devices
US20060097385A1 (en) 2004-10-25 2006-05-11 Negley Gerald H Solid metal block semiconductor light emitting device mounting substrates and packages including cavities and heat sinks, and methods of packaging same
US7322732B2 (en) 2004-12-23 2008-01-29 Cree, Inc. Light emitting diode arrays for direct backlighting of liquid crystal displays
KR100638721B1 (en) 2005-01-28 2006-10-30 삼성전기주식회사 Side view led package having lead frame structure designed for improving resin flow
JP2009527071A (en) 2005-12-22 2009-07-23 クリー エル イー ディー ライティング ソリューションズ インコーポレイテッド Lighting device
US8441179B2 (en) 2006-01-20 2013-05-14 Cree, Inc. Lighting devices having remote lumiphors that are excited by lumiphor-converted semiconductor excitation sources
CN102983248B (en) 2006-06-02 2017-11-14 日立化成株式会社 An optical semiconductor element mounting package and an optical semiconductor device using thereof
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