JP6825660B2 - Manufacturing method of lead frame, lead frame with resin, resin package, light emitting device and resin package - Google Patents

Manufacturing method of lead frame, lead frame with resin, resin package, light emitting device and resin package Download PDF

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JP6825660B2
JP6825660B2 JP2019148452A JP2019148452A JP6825660B2 JP 6825660 B2 JP6825660 B2 JP 6825660B2 JP 2019148452 A JP2019148452 A JP 2019148452A JP 2019148452 A JP2019148452 A JP 2019148452A JP 6825660 B2 JP6825660 B2 JP 6825660B2
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lead frame
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JP2019192947A (en
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拓也 中林
拓也 中林
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Nichia Corp
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01—Means 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
    • H01L2224/42—Wire connectors; Manufacturing methods related thereto
    • H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/4805—Shape
    • H01L2224/4809—Loop shape
    • H01L2224/48091—Arched
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01—Means 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
    • H01L2224/42—Wire connectors; Manufacturing methods related thereto
    • H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/481—Disposition
    • H01L2224/48151—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
    • H01L2224/48221—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
    • H01L2224/48245—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
    • H01L2224/48247—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 connecting the wire to a bond pad of the item
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01—Means 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
    • H01L2224/42—Wire connectors; Manufacturing methods related thereto
    • H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/484—Connecting portions
    • H01L2224/48463—Connecting portions the connecting portion on the bonding area of the semiconductor or solid-state body being a ball bond
    • H01L2224/48465—Connecting 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/93—Batch processes
    • H01L2224/95—Batch processes at chip-level, i.e. with connecting carried out on a plurality of singulated devices, i.e. on diced chips
    • H01L2224/97—Batch processes at chip-level, i.e. with connecting carried out on a plurality of singulated devices, i.e. on diced chips the devices being connected to a common substrate, e.g. interposer, said common substrate being separable into individual assemblies after connecting

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Description

本発明は、リードフレーム、樹脂付きリードフレーム、樹脂パッケージ、発光装置及び樹脂パッケージの製造方法に関する。 The present invention relates to a lead frame, a lead frame with a resin, a resin package, a light emitting device, and a method for manufacturing the resin package.

例えば、ＬＥＤを用いた発光装置は、正負のリードが埋設された樹脂パッケージにＬＥＤを搭載し、そのＬＥＤを透光性樹脂で覆うことにより作製される。この樹脂パッケージは、正負のリードが形成されたリードフレームを金型内に装填し、個々のパッケージに対応して形成されたキャビティに樹脂を流入し硬化させた後、個々のパッケージごとに分離することにより作製される。この樹脂パッケージを製造する際に用いられるリードフレームは、複数の樹脂パッケージを一括して成形するために、それぞれ正負のリードを含む単位領域が繰り返し配列されてなる。ここで、本明細書において、単位領域とは個々のパッケージに対応する領域のことをいい、また、本明細書において、複数の単位領域が繰り返し配列された板状の部材をリードフレームという。 For example, a light emitting device using an LED is manufactured by mounting the LED in a resin package in which positive and negative leads are embedded and covering the LED with a translucent resin. In this resin package, a lead frame in which positive and negative leads are formed is loaded into a mold, and the resin is poured into a cavity formed corresponding to each package to be cured, and then separated into individual packages. It is produced by. The lead frame used in manufacturing this resin package is formed by repeatedly arranging unit regions including positive and negative leads in order to collectively form a plurality of resin packages. Here, in the present specification, the unit area refers to an area corresponding to each package, and in the present specification, a plate-shaped member in which a plurality of unit areas are repeatedly arranged is referred to as a lead frame.

リードフレームは、複数の単位領域間にわたって正負のリードを集合状態で保持する必要があるために、隣接する単位領域間においてリード間が連結されており、その連結部が成形後に切断される。このリードフレームとして、従来種々の構造が提案されており、特許文献１には、吊りピンで隣接する単位領域間のリードが連結されたリードフレームが開示されている。
また、特許文献２の図２２には、吊りの支柱となる補強リードを設けることが開示されている。 Since the lead frame needs to hold positive and negative leads in an aggregated state across a plurality of unit regions, the leads are connected between adjacent unit regions, and the connecting portion is cut after molding. Various structures have been conventionally proposed as this lead frame, and Patent Document 1 discloses a lead frame in which leads between adjacent unit regions are connected by hanging pins.
Further, FIG. 22 of Patent Document 2 discloses that a reinforcing lead serving as a suspension column is provided.

特開2012-89547JP 2012-89547 特開2012-191233JP 2012-191233

しかしながら、従来のリードフレームを用いて作製された樹脂パッケージは、樹脂成形体、特に、正負のリードを分離する分離部の樹脂に亀裂がはいるという問題があった。 However, the resin package produced by using the conventional lead frame has a problem that the resin molded body, particularly the resin of the separating portion for separating the positive and negative leads, has cracks.

そこで、本発明は、樹脂成形体における亀裂の発生を防止できる樹脂パッケージの作製に適したリードフレームを提供することを第１の目的とする。
また、本発明は、樹脂成形体における亀裂の発生を防止できる樹脂パッケージと樹脂パッケージの製造方法を提供することを第２の目的とする。 Therefore, a first object of the present invention is to provide a lead frame suitable for manufacturing a resin package capable of preventing the occurrence of cracks in a resin molded body.
A second object of the present invention is to provide a resin package and a method for manufacturing the resin package, which can prevent the occurrence of cracks in the resin molded product.

以上の第１の目的を達成するために、本発明に係るリードフレームは、第１と第２のリードをそれぞれ含む複数の単位領域が繰り返し第１の方向に配置されてなる列を少なくとも１つ含むリードフレームであって、前記単位領域において、前記第１のリードと前記第２のリードとを分離する分離領域は前記第２のリードの端部で屈曲しており、前記第１のリードは前記第２のリードの端部に沿って延伸する延伸部を有し、
前記第１の方向に隣り合う単位領域間において前記延伸部によって一方の単位領域の第１のリードが他方の単位領域の第１のリード又は第２のリードに接続されている。 In order to achieve the above first object, the lead frame according to the present invention has at least one row in which a plurality of unit regions including the first and second leads are repeatedly arranged in the first direction. In the lead frame including, in the unit region, the separation region that separates the first lead and the second lead is bent at the end of the second lead, and the first lead is It has a stretched portion that extends along the end of the second lead.
The first lead of one unit region is connected to the first lead or the second lead of the other unit region by the stretching portion between the unit regions adjacent to each other in the first direction.

以上の第２の目的を達成するために、本発明に係る樹脂パッケージは、凹部を有する樹脂成形体と、前記樹脂成形体に埋設されかつ前記凹部の底面に分離して露出された第１と第２のリードとを備えた樹脂パッケージであって、前記第１のリードは、主要部と、該主要部の一対の対角のかど又はそのかどに近い位置からそれぞれ反対方向に延伸する延伸部と、前記主要部が形成される前記主要部の前記一対の角部とは異なる対角のかど又はそのかどに近い位置に設けられてそれぞれ反対方向に延伸する連結部と、を有し、前記延伸部及び前記連結部の端部は、前記樹脂成形体の４つの外側面からそれぞれ露出されていることを特徴とする。 In order to achieve the above second object, the resin package according to the present invention includes a resin molded body having a recess and a first one embedded in the resin molded body and separated and exposed on the bottom surface of the recess. A resin package including a second lead, wherein the first lead extends in opposite directions from a main portion and a pair of diagonal corners of the main portion or a position close to the corner. And a connecting portion provided at a diagonal corner different from the pair of corner portions of the main portion on which the main portion is formed or at a position close to the corner and extending in opposite directions. The stretched portion and the end portion of the connecting portion are each exposed from the four outer surfaces of the resin molded product.

また、第２の目的を達成するために、本発明に係る樹脂パッケージの製造方法は、
(i) 第１と第２のリードをそれぞれ含む複数の単位領域が繰り返し第１の方向に配置されてなる列を少なくとも１つ含み、前記単位領域において、前記第１のリードと前記第２のリードとを分離する分離領域が前記第２のリードの端部で屈曲しており、前記第１のリードが前記第２のリードの端部に沿って延伸する延伸部を有し、前記第１の方向に隣り合う単位領域間において前記延伸部によって一方の単位領域の第１のリードが他方の単位領域の第１のリード又は第２のリードに接続されたリードフレームを準備することと、
(ii) 前記単位領域においてそれぞれ第１のリードの少なくとも一部と第２のリードの少なくとも一部とに対向する凸部を有する上金型と、下金型とを準備することと、
(iii) 前記リードフレームを、前記凸部と前記下金型とによってそれぞれ第１のリードの少なくとも一部と第２のリードの少なくとも一部とを挟んで保持した状態で、前記凸部の周りにできる空洞に樹脂を注入することと、
を含むことを特徴とする。 Further, in order to achieve the second object, the method for manufacturing a resin package according to the present invention is:
(i) In the unit region, the first lead and the second lead include at least one column in which a plurality of unit regions including the first and second leads are repeatedly arranged in the first direction. The separation region that separates the leads is bent at the end of the second lead, and the first lead has a stretched portion that extends along the end of the second lead. To prepare a lead frame in which the first lead of one unit region is connected to the first lead or the second lead of the other unit region by the extending portion between the unit regions adjacent to each other in the direction of.
(ii) To prepare an upper mold and a lower mold having convex portions facing at least a part of the first lead and at least a part of the second lead in the unit region, respectively.
(iii) Around the convex portion, the lead frame is held by the convex portion and the lower mold so as to sandwich and hold at least a part of the first lead and at least a part of the second lead, respectively. Injecting resin into the cavity that can be made
It is characterized by including.

以上のように構成された本発明に係るリードフレームによれば、樹脂成形体における亀裂の発生を防止できる樹脂パッケージの作製に適したリードフレームを提供することができる。
以上のように構成された本発明に係る樹脂パッケージ及び樹脂パッケージの製造方法によれば、樹脂成形体における亀裂の発生を防止できる樹脂パッケージを提供することができる。 According to the lead frame according to the present invention configured as described above, it is possible to provide a lead frame suitable for producing a resin package capable of preventing the occurrence of cracks in the resin molded body.
According to the resin package and the method for manufacturing a resin package according to the present invention configured as described above, it is possible to provide a resin package capable of preventing the occurrence of cracks in the resin molded product.

本発明に係る実施形態１のリードフレームの平面図である。It is a top view of the lead frame of Embodiment 1 which concerns on this invention. 樹脂パッケージを構成する樹脂を成形した実施形態１のリードフレームの平面図である。It is a top view of the lead frame of Embodiment 1, which molded the resin constituting a resin package. 図１のリードフレームを用いて製造した樹脂パッケージを用いて構成した発光装置の斜視図である。It is a perspective view of the light emitting device configured by using the resin package manufactured by using the lead frame of FIG. 本発明に係る実施形態２のリードフレームの平面図である。It is a top view of the lead frame of Embodiment 2 which concerns on this invention. 樹脂パッケージを構成する樹脂を成形した実施形態２のリードフレームの平面図である。It is a top view of the lead frame of Embodiment 2 in which the resin constituting a resin package was molded. 本発明に係る実施形態３のリードフレームの平面図である。It is a top view of the lead frame of Embodiment 3 which concerns on this invention. 樹脂パッケージを構成する樹脂を成形した実施形態３のリードフレームの平面図である。It is a top view of the lead frame of Embodiment 3, which molded the resin constituting a resin package.

以下、図面を参照しながら本発明に係る実施形態について説明する。
実施形態１．
図１は、本発明に係る実施形態１のリードフレーム１００の構成を示す平面図であり、それぞれ第１のリード１１と第２のリード１２を含む単位領域１０が繰り返し配置されている。具体的には、図１の実施形態１のリードフレーム１００において、単位領域１０は縦方向（第１の方向）に配置されて列をなし、その列が横方向（第２の方向）に並んで設けられている（並置されている）。
各単位領域１０において、第１のリード１１と第２のリード１２は分離領域１３を介して分離されているが、隣接する単位領域の第１のリード１１及び第２のリード１２を介して支持されている。すなわち、第１のリード１１と第２のリード１２が、隣接する単位領域間において、第１のリード１１間、第２のリード１２間又は第１のリード１１と第２のリード１２間のいずれか一以上の間で連結されて１つのリードフレームが構成されている。
以下、実施形態１のリードフレーム１００の構成を具体的に説明する。 Hereinafter, embodiments according to the present invention will be described with reference to the drawings.
Embodiment 1.
FIG. 1 is a plan view showing the configuration of the lead frame 100 according to the first embodiment of the present invention, in which unit regions 10 including a first lead 11 and a second lead 12 are repeatedly arranged. Specifically, in the lead frame 100 of the first embodiment of FIG. 1, the unit regions 10 are arranged in the vertical direction (first direction) to form a row, and the rows are arranged in the horizontal direction (second direction). It is provided in (parallel).
In each unit region 10, the first lead 11 and the second lead 12 are separated via the separation region 13, but are supported via the first lead 11 and the second lead 12 in the adjacent unit regions. Has been done. That is, whether the first lead 11 and the second lead 12 are between the first lead 11 or the second lead 12 or between the first lead 11 and the second lead 12 in the adjacent unit region. One lead frame is formed by being connected between one or more.
Hereinafter, the configuration of the lead frame 100 of the first embodiment will be specifically described.

実施形態１のリードフレーム１００において、各単位領域１０はそれぞれ１つの第１のリード１１と２つの第２のリード１２を有している。単位領域１０は、点対称形状になっており、単位領域１０においてそれぞれ、第１のリード１１と２つの第２のリード１２は、単位領域１０の中心を回転中心として１８０度回転させたときに元の形状に一致する。 In the lead frame 100 of the first embodiment, each unit region 10 has one first lead 11 and two second leads 12, respectively. The unit region 10 has a point-symmetrical shape, and when the first lead 11 and the two second leads 12 in the unit region 10 are rotated 180 degrees with the center of the unit region 10 as the center of rotation, respectively. Matches the original shape.

具体的には、各単位領域１０において、第１のリード１１及び第２のリード１２はそれぞれ矩形形状（長方形）の主要部１１ｂ、主要部１２ｂを有し、主要部１１ｂの長辺と主要部１２ｂの長辺が所定の間隔を隔てて対向するように配置される。第１のリード１１は第２のリード１２の端部（主要部１２ｂの短辺）に沿って延伸する延伸部１１ｃを有し、第２のリード１２の端部（主要部１２ｂの短辺）と延伸部１１ｃとが所定の間隔を隔てて対向している。以上のようにして、主要部１１ｂの長辺と主要部１２ｂの長辺の間と第２のリード１２の端部（主要部１２ｂの短辺）と延伸部１１ｃの間に屈曲して連続する分離領域１３が形成される。ここで、分離領域の幅は、例えば、５０〜３００μｍに設定される。 Specifically, in each unit region 10, the first lead 11 and the second lead 12 have a main portion 11b and a main portion 12b having a rectangular shape (rectangular shape), respectively, and the long side and the main portion of the main portion 11b, respectively. The long sides of 12b are arranged so as to face each other with a predetermined interval. The first lead 11 has a stretched portion 11c extending along the end of the second lead 12 (the short side of the main portion 12b) and the end of the second lead 12 (the short side of the main portion 12b). And the stretched portion 11c face each other with a predetermined interval. As described above, it bends and continues between the long side of the main portion 11b and the long side of the main portion 12b, and between the end portion (short side of the main portion 12b) of the second lead 12 and the extending portion 11c. A separation region 13 is formed. Here, the width of the separation region is set to, for example, 50 to 300 μm.

第１のリード１１は、主要部１１ｂの一対の対角のかどからそれぞれ反対方向に延伸する２つの延伸部１１ｃを有している。２つの延伸部１１ｃのうちの一方の延伸部１１ｃは、２つの第２のリード１２のうちの一方の第２のリード１２の端部（第１端部）に沿って延伸し、他方の延伸部１１ｃは、他方の第２のリード１２の端部（第１端部）に沿って延伸する。以下、延伸部１１ｃに対向する第２のリード１２の端部を上記括弧書きで示したように第１端部といい、第１端部の反対側に位置する端部を第２端部という。尚、本実施形態１では、延伸部１１ｃを主要部１１ｂのかどから延伸するように設けたが、本発明では、延伸部１１ｃを主要部１１ｂのかどに近い位置から延伸するように設けてもよい。その際、２つの延伸部１１ｃの一方を主要部１１ｂのかどから延伸するように設け、他方を主要部１１ｂのかどに近い位置から延伸するように設けてもよい。ここで、主要部１１ｂのかどに近い位置とは、主要部１１ｂのかどからの距離が長辺の中心からの距離より短くなるような位置をいう。 The first lead 11 has two extending portions 11c extending in opposite directions from the pair of diagonal corners of the main portion 11b. One stretched portion 11c of the two stretched portions 11c stretches along the end (first end) of one of the two second leads 12 of the second lead 12, and the other stretches. The portion 11c extends along the end (first end) of the other second lead 12. Hereinafter, the end portion of the second lead 12 facing the stretched portion 11c is referred to as the first end portion as shown in parentheses above, and the end portion located on the opposite side of the first end portion is referred to as the second end portion. .. In the first embodiment, the stretched portion 11c is provided so as to stretch from the corner of the main portion 11b, but in the present invention, the stretched portion 11c may be provided so as to stretch from a position close to the corner of the main portion 11b. Good. At that time, one of the two extending portions 11c may be provided so as to extend from the corner of the main portion 11b, and the other may be provided so as to extend from a position close to the corner of the main portion 11b. Here, the position near the corner of the main portion 11b means a position where the distance from the corner of the main portion 11b is shorter than the distance from the center of the long side.

第１のリード１１の延伸部１１ｃはそれぞれ縦方向に隣接する単位領域の第２のリード１２の第２端部に連結されている。また、第１のリード１１の主要部１１ｂの短辺の一部が横方向に隣接する単位領域１０の第１のリード１１の主要部１１ｂの短辺の一部とが第１連結部１１ａを介して連結されている。ここで、第１のリード１１は、横方向の両側に隣接する単位領域１０の第１のリード１１にそれぞれ接続されるので、各第１のリード１１（主要部１１ｂ）はそれぞれ２つの第１連結部１１ａを備えており、その２つの第１連結部１１ａは延伸部１１ｃが形成される主要部１１ｂの一対の角部とは異なる対角角部に近い位置に設けられる。このようにして、第１のリード１１は延伸部１１ｃと第１連結部１１ａとによって４カ所の対角角部でそれぞれ支持される。
尚、本実施形態１では、第１連結部１１ａを対角のかどに近い位置に設けたが、第１連結部１１ａを対角のかどに設けても良い。その際、２つの第１連結部１１ａの一方を主要部１１ｂのかどから延伸するように設け、他方を主要部１１ｂのかどに近い位置から延伸するように設けてもよい。ここで、主要部１１ｂのかどに近い位置とは、主要部１１ｂのかどからの距離が短辺の中心からの距離より短くなるような位置をいう。 The stretched portion 11c of the first lead 11 is connected to the second end portion of the second lead 12 in each vertically adjacent unit region. Further, a part of the short side of the main part 11b of the first lead 11 and a part of the short side of the main part 11b of the first lead 11 of the unit region 10 adjacent in the lateral direction form the first connecting part 11a. It is connected via. Here, since the first leads 11 are connected to the first leads 11 of the unit region 10 adjacent to both sides in the lateral direction, each of the first leads 11 (main portion 11b) is each of two first leads. The connecting portion 11a is provided, and the two first connecting portions 11a are provided at positions close to diagonal portions different from the pair of corner portions of the main portion 11b on which the extending portion 11c is formed. In this way, the first lead 11 is supported by the extending portion 11c and the first connecting portion 11a at four diagonal portions, respectively.
In the first embodiment, the first connecting portion 11a is provided at a position close to the diagonal corner, but the first connecting portion 11a may be provided at the diagonal corner. At that time, one of the two first connecting portions 11a may be provided so as to extend from the corner of the main portion 11b, and the other may be provided so as to extend from a position close to the corner of the main portion 11b. Here, the position near the corner of the main portion 11b means a position where the distance from the corner of the main portion 11b is shorter than the distance from the center of the short side.

第２のリード１２は、縦方向に隣接する単位領域間において所定の間隔を隔てて並んで設けられ、第２のリード１２間の２カ所で連結される。具体的には、第２のリード１２の対向する長辺の両端部に近い２つの位置で第２連結部１２ｃを介して連結される。また、横方向に隣接する２つの単位領域の第２のリード１２間において、第１のリード１１の延伸部１１ｃが連結された第２端部が第３連結部１２ａを介して連結される。このようにして、第２のリード１２の第２端部間を連結する第３連結部１２ａと縦方向に隣接する第１のリード１１の延伸部１１ｃとが第２のリード１２の第２端部の近傍で繋がって一体化されている。 The second leads 12 are provided side by side at predetermined intervals between unit regions adjacent in the vertical direction, and are connected at two places between the second leads 12. Specifically, they are connected via the second connecting portion 12c at two positions near both ends of the opposite long sides of the second lead 12. Further, between the second leads 12 of the two unit regions adjacent in the lateral direction, the second end portion to which the extending portion 11c of the first lead 11 is connected is connected via the third connecting portion 12a. In this way, the third connecting portion 12a that connects the second ends of the second lead 12 and the extending portion 11c of the first lead 11 that is vertically adjacent to each other are the second ends of the second lead 12. It is connected and integrated in the vicinity of the part.

以上のように構成された実施形態１のリードフレーム１００を金型内に装填し、キャビティに樹脂を注入して硬化させる。これにより、それぞれ凹部１６を有する樹脂成形体１５と、樹脂成形体１５に埋設されかつ凹部１６の底面に分離して露出された第１のリード１１と第２のリード１２とを備えた複数の樹脂パッケージが集合状態で作製される。例えば、この金型は、分離可能な２つ以上の金型からなり、一方の金型（例えば、上金型）に凹部１６に対応して凸部が設けられ、成形時には、その凸部の上面と他方の金型（例えば、下金型）の間にリードフレーム１００とを挟み込む。上金型は、複数の凸部を有し、凸部は、各単位領域においてそれぞれ第１のリードの少なくとも一部と第２のリードの少なくとも一部とに対向するように形成される。リードフレーム１００は、例えば、単位領域１０の中心が一方の金型の凸部上面の中心に一致するように装填され、それぞれ第１のリードの少なくとも一部と第２のリードの少なくとも一部とを上金型の凸部と下金型とによって挟まれた状態で保持される。その状態で、凸部の周りに形成されるキャビティに樹脂が注入されて硬化される。樹脂の成形方法としては、射出成形やトランスファー成形を好適に用いることができる。凹部１６及び凹部１６の底面は、凹部１６の底面に第１のリード１１とその両側にそれぞれ分離領域１３を介して第２のリード１２が露出するように、好ましくは、延伸部１１ｃが樹脂成形体１５の内部に埋設されるように設定される。言い換えると、好ましくは、上金型の凸部は、延伸部を除いた位置で前記第１のリードの一部と対向するように形成される。
また、凹部１６は、例えば、底面から上面に向かって断面積が広くなるように構成されている。図２において、１５ａを付して示す部分は傾斜した凹部１６の側壁である。また、リードフレーム１００の分離領域１３には樹脂が充填されており、充填された樹脂からなる樹脂分離部１４が形成される。樹脂を硬化させた後、切断線１７に沿って切断して、個々の樹脂パッケージごとに分離する。以上のようにして、実施形態１の樹脂パッケージが作製される。
なお、ダイシングストリート幅（切断部の幅）は、例えば０．１ｍｍ〜０．３ｍｍ程度である。樹脂パッケージの大きさは特に限定されないが、例えば、平面視の一辺が１ｍｍ〜５ｍｍ、厚みが０．２ｍｍ〜０．７ｍｍ程度である。 The lead frame 100 of the first embodiment configured as described above is loaded into the mold, and the resin is injected into the cavity and cured. As a result, a plurality of resin molded bodies 15 having recesses 16 and a plurality of first leads 11 and second leads 12 embedded in the resin molded body 15 and separated and exposed on the bottom surface of the recesses 16 are provided. The resin package is manufactured in an assembled state. For example, this mold is composed of two or more separable molds, and one mold (for example, an upper mold) is provided with a convex portion corresponding to the concave portion 16, and at the time of molding, the convex portion of the convex portion is provided. The lead frame 100 is sandwiched between the upper surface and the other mold (for example, the lower mold). The upper mold has a plurality of convex portions, and the convex portions are formed so as to face at least a part of the first lead and at least a part of the second lead in each unit region. The lead frame 100 is loaded so that, for example, the center of the unit region 10 coincides with the center of the upper surface of the convex portion of one mold, and at least a part of the first lead and at least a part of the second lead, respectively. Is held in a state of being sandwiched between the convex portion of the upper mold and the lower mold. In that state, the resin is injected into the cavity formed around the convex portion and cured. As a resin molding method, injection molding or transfer molding can be preferably used. In the bottom surface of the recess 16 and the recess 16, the stretched portion 11c is preferably resin-molded so that the first lead 11 and the second lead 12 are exposed on both sides of the first lead 11 via the separation regions 13, respectively. It is set to be embedded inside the body 15. In other words, preferably, the convex portion of the upper mold is formed so as to face a part of the first lead at a position excluding the stretched portion.
Further, the recess 16 is configured so that the cross-sectional area increases from the bottom surface to the top surface, for example. In FIG. 2, the portion indicated by 15a is the side wall of the inclined recess 16. Further, the separation region 13 of the lead frame 100 is filled with resin, and a resin separation portion 14 made of the filled resin is formed. After the resin is cured, it is cut along the cutting line 17 and separated into individual resin packages. As described above, the resin package of the first embodiment is produced.
The dicing street width (width of the cut portion) is, for example, about 0.1 mm to 0.3 mm. The size of the resin package is not particularly limited, but for example, one side in a plan view is about 1 mm to 5 mm, and the thickness is about 0.2 mm to 0.7 mm.

以上のように構成された実施形態１の樹脂パッケージは、第１のリード１１の延伸部１１ｃによって樹脂成形体１５が補強されて樹脂部における亀裂の発生を防止できる。
すなわち、第１のリード１１と第２のリード１２の間の樹脂分離部が一側面から他の側面に向かって直線的に延びていると、樹脂分離部の部分で亀裂が入るおそれがある。しかしながら、本実施形態１の樹脂パッケージでは、樹脂分離部１４が第１のリード１１の外形（主要部１１ｂの側面と延伸部１１ｃの側面）に沿って屈曲している。したがって、樹脂分離部１４に外からの力が加わりにくく、また、樹脂分離部１４に外力が加わったとしても主要部１１ｂと延伸部１１ｃとによって樹脂分離部１４の変形が抑制され、樹脂部における亀裂の発生を防止できる。 In the resin package of the first embodiment configured as described above, the resin molded body 15 is reinforced by the stretched portion 11c of the first lead 11, and the occurrence of cracks in the resin portion can be prevented.
That is, if the resin separating portion between the first lead 11 and the second lead 12 extends linearly from one side surface toward the other side surface, a crack may occur in the resin separating portion. However, in the resin package of the first embodiment, the resin separating portion 14 is bent along the outer shape of the first lead 11 (the side surface of the main portion 11b and the side surface of the stretched portion 11c). Therefore, it is difficult for an external force to be applied to the resin separating portion 14, and even if an external force is applied to the resin separating portion 14, the main portion 11b and the stretching portion 11c suppress the deformation of the resin separating portion 14, and the resin portion is formed. The occurrence of cracks can be prevented.

実施形態１のリードフレーム１００は、分離領域１３が、第１のリード１１が第２のリード１２の端部のかどで屈曲し第２のリード１２の端部に沿って延伸する延伸部１１ｃを有しているので、樹脂成形体１５における亀裂の発生が抑制された樹脂パッケージの作製が可能になる。
また、実施形態１のリードフレーム１００は、第１のリード１１が延伸部１１ｃと第１連結部とによって４カ所の対角角部でそれぞれ支持され、第２のリード１２が延伸部１１ｃによって第１のリード１１に連結されている他、隣接する単位領域の第２のリード１２と３カ所で連結されて支持されている。これにより、リードフレーム１００の変形を抑制することができ、大判化が可能になる。
さらに、実施形態１のリードフレーム１００は、補強リードを設けることなく、第１のリード１１及び第２のリード１２を保持しているので、ダイシングストリート幅（切断部の幅）を狭くでき、取り個数を多くすることができる。
また、補強リードごと切削する必要がないので、切断スピードを速くでき、製造コストを削減できる。 The lead frame 100 of the first embodiment has a stretched portion 11c in which the separation region 13 bends at the corner of the end of the second lead 12 and extends along the end of the second lead 12. Therefore, it is possible to manufacture a resin package in which the occurrence of cracks in the resin molded body 15 is suppressed.
Further, in the lead frame 100 of the first embodiment, the first lead 11 is supported by the stretched portion 11c and the first connecting portion at four diagonal portions, and the second lead 12 is supported by the stretched portion 11c. In addition to being connected to the lead 11 of 1, it is connected and supported at three places with the second lead 12 in the adjacent unit region. As a result, the deformation of the lead frame 100 can be suppressed, and the size can be increased.
Further, since the lead frame 100 of the first embodiment holds the first lead 11 and the second lead 12 without providing the reinforcing lead, the dicing street width (width of the cut portion) can be narrowed and removed. The number can be increased.
Moreover, since it is not necessary to cut the entire reinforcing lead, the cutting speed can be increased and the manufacturing cost can be reduced.

図３は、実施形態１の樹脂パッケージを用いて構成した発光装置の斜視図である。
図３の発光装置において、樹脂パッケージの凹部１６の底面に露出した第１のリード１１上に発光素子１８がダイボンディング（載置）され、発光素子１８のｎ側電極とｐ側電極とがそれぞれワイヤ１９を介して一方の第２のリード１２と他方のリード１２に接続される。
この図３に示す例では、例えば、一方の第２のリード１２が正のリードであり、他方の第２のリード１２が負のリードである。
ここで、樹脂パッケージ（樹脂成形体）の外側面には延伸部１１ｃの切断面（端面）が露出し、同様に、第１連結部１１ａ、第２連結部１２ｃ及び第３連結部１２ａの切断面も樹脂パッケージの外側面に露出している。また、延伸部１１ｃ、第１連結部１１ａ、第２連結部１２ｃ及び第３連結部１２ａは、ハーフエッチングにより薄くなっており、図３において樹脂パッケージの外表面に露出した延伸部１１ｃ等の切断面は薄く描いている。
図３に示す樹脂パッケージにおいて、樹脂成形体は４つの外側面を有しているが、各外側面に延伸部１１ｃ、第１連結部１１ａ、第２連結部１２ｃ及び第３連結部１２ａのいずれか１つ以上の端部が露出していることが好ましい。
例えば、第１のリード１１の主要部１１ｂと第２のリード１２の主要部１２ｂを厚くして、樹脂成形体の裏面から露出させて外部接続端子を形成するような場合、主要部１１ｂの側面及び主要部１２ｂの側面と樹脂成形体の境界が平坦であると、主要部１１ｂの側面及び主要部１２ｂと樹脂成形体との界面が剥離する恐れがある。しかしながら、延伸部１１ｃ、第１連結部１１ａ、第２連結部１２ｃ及び第３連結部１２ａが外側面から露出するようにすることで、主要部１１ｂの側面及び主要部１２ｂの側面と樹脂成形体の境界に凸部が形成されることになり、主要部１１ｂの側面及び主要部１２ｂと樹脂成形体との界面剥離を防止することができる。
発光装置は、発光素子１８が発する光の少なくとも一部について、その波長を変換（長波長側に変換）するための１種類以上の蛍光体を発光素子１８の周りに配置してよい。図３に示す発光装置においては、１種類以上の蛍光体を含む封止樹脂を樹脂パッケージの凹部１６に充填することにより、蛍光体を発光素子１８の周囲に配置することが好ましい。
封止樹脂は、必要に応じて、発光素子１８および蛍光体からの光を拡散させる拡散剤を含んでよい。
また、封止樹脂の表面形状を制御することによりレンズを形成し、光の取り出し効率を高めてもよい。または、封止樹脂の上にレンズを配置することにより光の取り出し効率を高めてもよい。 FIG. 3 is a perspective view of a light emitting device configured by using the resin package of the first embodiment.
In the light emitting device of FIG. 3, the light emitting element 18 is die-bonded (mounted) on the first lead 11 exposed on the bottom surface of the recess 16 of the resin package, and the n-side electrode and the p-side electrode of the light-emitting element 18 are respectively. It is connected to one second lead 12 and the other lead 12 via a wire 19.
In the example shown in FIG. 3, for example, one second lead 12 is a positive lead and the other second lead 12 is a negative lead.
Here, the cut surface (end surface) of the stretched portion 11c is exposed on the outer surface of the resin package (resin molded body), and similarly, the first connecting portion 11a, the second connecting portion 12c, and the third connecting portion 12a are cut. The surface is also exposed on the outer surface of the resin package. Further, the stretched portion 11c, the first connecting portion 11a, the second connecting portion 12c, and the third connecting portion 12a are thinned by half etching, and in FIG. 3, the stretched portion 11c and the like exposed on the outer surface of the resin package are cut. The surface is drawn thinly.
In the resin package shown in FIG. 3, the resin molded body has four outer surfaces, and any of the stretched portion 11c, the first connecting portion 11a, the second connecting portion 12c, and the third connecting portion 12a is provided on each outer surface. It is preferable that one or more ends are exposed.
For example, when the main portion 11b of the first lead 11 and the main portion 12b of the second lead 12 are thickened and exposed from the back surface of the resin molded body to form an external connection terminal, the side surface of the main portion 11b is formed. If the boundary between the side surface of the main portion 12b and the resin molded body is flat, the side surface of the main portion 11b and the interface between the main portion 12b and the resin molded body may be peeled off. However, by exposing the stretched portion 11c, the first connecting portion 11a, the second connecting portion 12c, and the third connecting portion 12a from the outer surface, the side surface of the main portion 11b, the side surface of the main portion 12b, and the resin molded body are exposed. Since the convex portion is formed at the boundary between the two, it is possible to prevent the side surface of the main portion 11b and the interface peeling between the main portion 12b and the resin molded body.
The light emitting device may arrange one or more kinds of phosphors for converting (converting to a long wavelength side) the wavelength of at least a part of the light emitted by the light emitting element 18 around the light emitting element 18. In the light emitting device shown in FIG. 3, it is preferable that the phosphor is arranged around the light emitting element 18 by filling the recess 16 of the resin package with a sealing resin containing one or more kinds of phosphors.
The sealing resin may contain a diffusing agent that diffuses the light from the light emitting element 18 and the phosphor, if necessary.
Further, the lens may be formed by controlling the surface shape of the sealing resin to improve the light extraction efficiency. Alternatively, the light extraction efficiency may be improved by arranging the lens on the sealing resin.

実施形態２．
図４は、本発明に係る実施形態２のリードフレーム２００の構成を示す平面図である。
実施形態２のリードフレーム２００は、実施形態１と同様、それぞれ第１のリード２１と第２のリード２２を含む単位領域２０が繰り返し配置されることで構成されているが、実施形態１とは異なり、各単位領域２０が１つの第１のリード２１と１つの第２のリード２２とによって構成されている。
以下、実施形態２のリードフレーム２００の構成を具体的に説明する。 Embodiment 2.
FIG. 4 is a plan view showing the configuration of the lead frame 200 according to the second embodiment of the present invention.
Similar to the first embodiment, the lead frame 200 of the second embodiment is configured such that the unit region 20 including the first lead 21 and the second lead 22 is repeatedly arranged, but the first embodiment is different from the first embodiment. Differently, each unit region 20 is composed of one first lead 21 and one second lead 22.
Hereinafter, the configuration of the lead frame 200 of the second embodiment will be specifically described.

実施形態２のリードフレーム２００において、第１のリード２１及び第２のリード２２はそれぞれ主要部２１ｂ、主要部２２ｂを有し、第２のリード２２の主要部２２ｂは矩形形状（長方形）である。各単位領域２０において、第１のリード２１の主要部２１ｂの一辺と第２のリード２２の主要部２２ｂの一辺（１つの長辺）が所定の間隔を隔てて対向するように配置される。第１のリード２１は第２のリード２２の主要部２２ｂの両短辺に沿ってそれぞれ延伸する２つの延伸部２１ｃを有し、第２のリード２２の主要部２２ｂの短辺と延伸部２１ｃとが所定の間隔を隔てて対向している。このように第１のリード２１が第２のリード２２の主要部２２ｂの両短辺に沿って延伸する延伸部２１ｃを有することで、第１のリード２１と第２のリード２２の主要部２２ｂの間に屈曲した分離領域２３が形成される。
すなわち、分離領域２３は、第１のリード２１の主要部２１ｂの一辺と第２のリード２２の主要部２２ｂの長辺の間に直線的に形成された分離領域と当該分離領域の両端から第２のリード２２の主要部２２ｂの短辺に沿って形成された分離領域からなる。 In the lead frame 200 of the second embodiment, the first lead 21 and the second lead 22 have a main portion 21b and a main portion 22b, respectively, and the main portion 22b of the second lead 22 has a rectangular shape (rectangular shape). .. In each unit region 20, one side of the main portion 21b of the first lead 21 and one side (one long side) of the main portion 22b of the second lead 22 are arranged so as to face each other at a predetermined interval. The first lead 21 has two stretched portions 21c that extend along both short sides of the main portion 22b of the second lead 22, respectively, and the short side of the main portion 22b of the second lead 22 and the stretched portion 21c. Are facing each other with a predetermined interval. As described above, the first lead 21 has the extending portion 21c extending along both short sides of the main portion 22b of the second lead 22, so that the main portion 22b of the first lead 21 and the second lead 22 A bent separation region 23 is formed between the two.
That is, the separation region 23 is formed from one side of the main portion 21b of the first lead 21 and the long side of the main portion 22b of the second lead 22 linearly formed from both ends of the separation region. It consists of a separation region formed along the short side of the main portion 22b of the lead 22 of 2.

また、隣接する単位領域２０間におけるリード間は以下のように接続されている。
第１のリード２１の延伸部２１ｃはそれぞれ縦方向に隣接する単位領域２０の第１のリード２１に連結されている。
第１のリード２１は、主要部２１ｂの一辺（分離領域２３側の辺）の反対側の他辺の２カ所でそれぞれ連結部２１ａを介して縦方向に隣接する単位領域の第２のリード２２に連結されている。尚、連結部２１ａは、縦方向に隣接する単位領域の第２のリード２２の連結部２２ａに連結されている。
また、第１のリード２１は、横方向に隣接する単位領域２０の第１のリード２１と連結部２１ｄを介して連結されている。 Further, the leads between the adjacent unit regions 20 are connected as follows.
The stretched portion 21c of the first lead 21 is connected to the first lead 21 of the unit region 20 which is vertically adjacent to each other.
The first lead 21 is a second lead 22 of a unit region vertically adjacent to each other via a connecting portion 21a at two locations on the other side opposite to one side (the side on the separation region 23 side) of the main portion 21b. Is connected to. The connecting portion 21a is connected to the connecting portion 22a of the second lead 22 in the unit region adjacent in the vertically direction.
Further, the first lead 21 is connected to the first lead 21 of the unit region 20 adjacent in the lateral direction via the connecting portion 21d.

このようにして、第１のリード２１は縦方向に隣接する単位領域の第１のリード２１との間で延伸部２１ｃを介して４カ所の対角角部で支持され、さらに横方向に隣接する単位領域２０の第１のリード２１との間で連結部２１ｄを介して支持される。 In this way, the first lead 21 is supported by four diagonal portions with the first lead 21 of the unit region adjacent in the vertically direction via the extension portion 21c, and is further adjacent in the lateral direction. It is supported via a connecting portion 21d with the first lead 21 of the unit region 20.

以上のように構成された実施形態２のリードフレーム２００を金型内に装填し、キャビティに樹脂を注入して硬化させる。これにより、それぞれ凹部２６を有する樹脂成形体２５と、樹脂成形体２５に埋設されかつ凹部２６の底面に分離して露出された第１のリード２１と第２のリード２２とを備えた複数の樹脂パッケージが集合状態で作製される。
具体的には、実施形態１と同様に、例えば、分離可能な２つ以上の金型の一方の上金型に凹部２６に対応して凸部を設け、成形時には、その凸部の上面と他方の下金型の間にリードフレーム２００とを挟み込んで凸部の周りに形成されるキャビティに樹脂を注入して硬化させる。このとき、好ましくは、延伸部２１ｃが樹脂成形体２５の中に埋設されるようにする。また、凹部２６は、例えば、底面から上面に向かって断面積が広くなるように構成し、図５において、２５ａを付して示す部分は傾斜した凹部２６の側壁である。
尚、リードフレーム２００の分離領域２３には樹脂が充填され、充填された樹脂からなる樹脂分離部２４が形成される。樹脂を硬化させた後、切断線２７に沿って切断して、個々の樹脂パッケージごとに分離する。以上のようにして、実施形態２の樹脂パッケージが作製される。 The lead frame 200 of the second embodiment configured as described above is loaded into the mold, and the resin is injected into the cavity and cured. As a result, a plurality of resin molded bodies 25 each having a recess 26, and a plurality of first leads 21 and second leads 22 embedded in the resin molded body 25 and separated and exposed on the bottom surface of the recess 26. The resin package is manufactured in an assembled state.
Specifically, as in the first embodiment, for example, one upper mold of two or more separable molds is provided with a convex portion corresponding to the concave portion 26, and at the time of molding, the upper surface of the convex portion The lead frame 200 is sandwiched between the other lower molds, and the resin is injected into the cavity formed around the convex portion and cured. At this time, preferably, the stretched portion 21c is embedded in the resin molded body 25. Further, the recess 26 is configured so that the cross-sectional area increases from the bottom surface to the top surface, for example, and the portion indicated by 25a in FIG. 5 is the side wall of the inclined recess 26.
The separation region 23 of the lead frame 200 is filled with resin, and a resin separation portion 24 made of the filled resin is formed. After the resin is cured, it is cut along the cutting line 27 and separated into individual resin packages. As described above, the resin package of the second embodiment is produced.

以上のように構成された実施形態２の樹脂パッケージは、第１のリード２１の延伸部２１ｃによって樹脂成形体２５が補強されて樹脂成形部における亀裂の発生を防止できる。
ここで、特に本実施形態２では、第１のリード２１は主要部２２ｂの両短辺に沿ってそれぞれ延伸する２つの延伸部２１ｃを有しているので、樹脂分離部２４の両側で樹脂成形体２５が補強され、より効果的に樹脂成形部における亀裂の発生を防止できる。 In the resin package of the second embodiment configured as described above, the resin molded body 25 is reinforced by the stretched portion 21c of the first lead 21, and the occurrence of cracks in the resin molded portion can be prevented.
Here, particularly in the second embodiment, since the first lead 21 has two stretched portions 21c that are stretched along both short sides of the main portion 22b, resin molding is performed on both sides of the resin separating portion 24. The body 25 is reinforced, and the occurrence of cracks in the resin molded portion can be prevented more effectively.

実施形態２のリードフレーム２００は、第１のリード２１の延伸部２１ｃによって樹脂成形体２５が補強された樹脂パッケージの作製が可能になることに加え、さらに以下のような利点がある。 The lead frame 200 of the second embodiment has the following advantages in addition to enabling the production of a resin package in which the resin molded body 25 is reinforced by the stretched portion 21c of the first lead 21.

第１に、実施形態２のリードフレーム２００は、第１のリード２１は縦方向に隣接する単位領域の第１のリード２１との間で延伸部２１ｃを介して４カ所の対角角部で支持され、さらに横方向に隣接する単位領域２０の第１のリード２１との間で連結部２１ｄを介して支持されている。このような支持構造により、リードフレーム２００の変形を抑制することができ、大判化が可能になる。
また、実施形態２のリードフレーム２００は、補強リードを設けることなく、第１のリード２１及び第２のリード２２を保持しているので、ダイシングストリート幅（切断部の幅）を狭くでき、取り個数を多くすることができる。
また、補強リードごと切削する必要がないので、切断スピードを速くでき、製造コストを削減できる。 First, in the lead frame 200 of the second embodiment, the first lead 21 is located at four diagonal portions between the first lead 21 and the first lead 21 in the unit region adjacent in the longitudinal direction via the extending portion 21c. It is supported and further supported via a connecting portion 21d with the first lead 21 of the unit region 20 adjacent in the lateral direction. With such a support structure, deformation of the lead frame 200 can be suppressed, and a large size can be obtained.
Further, since the lead frame 200 of the second embodiment holds the first lead 21 and the second lead 22 without providing the reinforcing lead, the dicing street width (width of the cut portion) can be narrowed and removed. The number can be increased.
Moreover, since it is not necessary to cut the entire reinforcing lead, the cutting speed can be increased and the manufacturing cost can be reduced.

実施形態３．
図６は、本発明に係る実施形態３のリードフレーム３００の構成を示す平面図である。
実施形態３のリードフレーム３００は、実施形態１及び２と同様、それぞれ第１のリード３１と第２のリード３２１〜３２３を含む単位領域３０が繰り返し配置されることで構成されているが、実施形態１及び２とは異なり、各単位領域３０が１つの第１のリード３１と３つの第２のリード３２１〜３２３とによって構成されている。
以下、実施形態３のリードフレーム３００の構成を具体的に説明する。 Embodiment 3.
FIG. 6 is a plan view showing the configuration of the lead frame 300 according to the third embodiment of the present invention.
The lead frame 300 of the third embodiment is configured by repeatedly arranging the unit regions 30 including the first lead 31 and the second leads 321 to 323, respectively, as in the first and second embodiments. Unlike the first and second embodiments, each unit region 30 is composed of one first lead 31 and three second leads 321-23.
Hereinafter, the configuration of the lead frame 300 of the third embodiment will be specifically described.

第１のリード３１は、Ｌ字型又は逆Ｌ字型の主要部３１ｂと、連結部３１ａと、２つの延伸部３１ｃ，３１ｄとを備える。第１のリード３１の主要部３１ｂは、胴体部と胴体部から突出する突出部とを備えてＬ字型又は逆Ｌ字型形状となっており、胴体部が単位領域３０の中央部に配置される。また、第２のリードは、主要部３２１ｂと連結部３２１ａとを有する第２のリード３２１と、主要部３２２ｂと連結部３２２ａとを有する第２のリード３２２と、主要部３２３ｂと連結部３２３ａとを有する第２のリード３２３とからなる。第２のリード３２１は第１のリード３１の胴体部と突出部に囲まれた領域に設けられ、第２のリード３２２と第２のリード３２３は胴体部に沿って並んで第２のリード３２１の反対側に設けられる。 The first lead 31 includes an L-shaped or inverted L-shaped main portion 31b, a connecting portion 31a, and two extending portions 31c and 31d. The main portion 31b of the first lead 31 has an L-shape or an inverted L-shape including a body portion and a projecting portion protruding from the body portion, and the body portion is arranged at the center portion of the unit region 30. Will be done. Further, the second lead includes a second lead 321 having a main portion 321b and a connecting portion 321a, a second lead 322 having a main portion 322b and a connecting portion 322a, and a main portion 323b and a connecting portion 323a. It consists of a second lead 323 having a. The second lead 321 is provided in the area surrounded by the body portion and the protruding portion of the first lead 31, and the second lead 322 and the second lead 323 are arranged along the body portion of the second lead 321. It is provided on the opposite side of.

第１のリード３１の延伸部３１ｃは、主要部３１ｂの一端部の角（胴体部の一端部の角）から縦下方向に延びており、縦下方向に隣接する第２のリード３２２に連結されている。尚、各単位領域３０の第１のリード３１において、突出部に近い位置にある胴体部の端部を他端部といい、突出部から離れた位置にある胴体部の端部を一端部という。また、延伸部３１ｄは、主要部３１ｂの他端部の角（胴体部の他端部の角）から縦上方向に延びており、縦上方向に隣接する第１のリード３１の突出部に連結されている。また、隣接する単位領域３０間において、延伸部３１ｃと延伸部３１ｄは連結バー３８によって連結されている。以上のように、第１のリード３１において、延伸部３１ｃと延伸部３１ｄはそれぞれ胴体部の対角の角から反対方向に延びている。また、第１のリード３１の連結部３１ａは、主要部３１ｂの一端部から横方向に延びており、横方向に隣接する単位領域３０の第１のリード３１の他端部（胴体部の他端部）に連結されている。ここで、連結部３１ａは主要部３１ｂの一端部において、延伸部３１ｃが設けられた角とは異なる角の近くに設けられる。以上のような構成により、第１のリード３１の胴体部は４つの角部で支持されることになる。 The extended portion 31c of the first lead 31 extends in the vertically downward direction from the corner of one end of the main portion 31b (the corner of one end of the body portion) and is connected to the second lead 322 adjacent in the vertically downward direction. Has been done. In the first lead 31 of each unit region 30, the end portion of the body portion located near the protruding portion is referred to as the other end portion, and the end portion of the body portion located away from the protruding portion is referred to as one end portion. .. Further, the stretched portion 31d extends in the vertically upward direction from the corner of the other end of the main portion 31b (the corner of the other end of the body), and extends to the protruding portion of the first lead 31 adjacent in the vertically upward direction. It is connected. Further, in the adjacent unit regions 30, the stretched portion 31c and the stretched portion 31d are connected by a connecting bar 38. As described above, in the first lead 31, the stretched portion 31c and the stretched portion 31d extend in opposite directions from the diagonal corners of the body portion, respectively. Further, the connecting portion 31a of the first lead 31 extends laterally from one end of the main portion 31b, and the other end of the first lead 31 of the unit region 30 adjacent in the lateral direction (other than the body portion). It is connected to the end). Here, the connecting portion 31a is provided at one end of the main portion 31b near a corner different from the corner where the extending portion 31c is provided. With the above configuration, the body portion of the first lead 31 is supported by the four corner portions.

第２のリード３２１の連結部３２１ａは、主要部３２１ｂの一端部から延びており、縦下方向に隣接する単位領域３０の第２のリード３２３の主要部３２３ｂに連結されている。第２のリード３２２の連結部３２２ａは、主要部３２２ｂの一端部から延びており、縦上方向に隣接する単位領域３０の第２のリード３２１の主要部３２１ｂに連結されている。第２のリード３２３の連結部３２３ａは、主要部３２３ｂの一端部から延びており、縦上方向に隣接する単位領域３０の第１のリード３１の突出部の先端部に連結されている。 The connecting portion 321a of the second lead 321 extends from one end of the main portion 321b and is connected to the main portion 323b of the second lead 323 in the unit region 30 adjacent in the vertically downward direction. The connecting portion 322a of the second lead 322 extends from one end of the main portion 322b and is connected to the main portion 321b of the second lead 321 in the unit region 30 adjacent in the vertically upward direction. The connecting portion 323a of the second lead 323 extends from one end of the main portion 323b and is connected to the tip of the protruding portion of the first lead 31 of the unit region 30 adjacent in the vertically upward direction.

以上のような構成により、第１のリード３１の主要部３１ｂと延伸部３１ｄに沿って屈曲した分離領域１３が形成される。また、主要部３１ｂの胴体部及び突出部と第２のリード３２１の間に屈曲した分離領域３３が形成される。しかしながら、単位領域３０の一辺から他の辺に繋がりかつ直線的に延びる分離領域が形成されることはない。 With the above configuration, the separation region 13 bent along the main portion 31b and the stretched portion 31d of the first lead 31 is formed. In addition, a bent separation region 33 is formed between the body portion and the protruding portion of the main portion 31b and the second lead 321. However, a separation region that is connected to the other side of the unit region 30 and extends linearly is not formed.

以上のように構成された実施形態３のリードフレーム３００を金型内に装填し、キャビティに樹脂を注入して硬化させる。これにより、それぞれ凹部３６を有する樹脂成形体３５と、樹脂成形体３５に埋設されかつ凹部３６の底面に分離して露出された第１のリード３１と３つの第２のリード３２１〜３２３とを備えた複数の樹脂パッケージが集合状態で作製される。また、凹部３６は、例えば、底面から上面に向かって断面積が広くなるように構成し、図７において、３５ａを付して示す部分は傾斜した凹部３６の側壁である。
尚、リードフレーム３００の分離領域３３には樹脂が充填され、充填された樹脂からなる樹脂分離部３４が形成される。樹脂を硬化させた後、切断線３７に沿って切断して、個々の樹脂パッケージごとに分離する。以上のようにして、実施形態３の樹脂パッケージが作製される。 The lead frame 300 of the third embodiment configured as described above is loaded into the mold, and the resin is injected into the cavity and cured. As a result, the resin molded body 35 having the recess 36, the first lead 31 embedded in the resin molded body 35 and separated and exposed on the bottom surface of the recess 36, and the three second leads 321 to 323 are separated from each other. A plurality of provided resin packages are manufactured in an assembled state. Further, the recess 36 is configured so that the cross-sectional area increases from the bottom surface to the top surface, for example, and the portion indicated by 35a in FIG. 7 is the side wall of the inclined recess 36.
The separation region 33 of the lead frame 300 is filled with resin, and a resin separation portion 34 made of the filled resin is formed. After the resin is cured, it is cut along the cutting line 37 and separated into individual resin packages. As described above, the resin package of the third embodiment is produced.

以上のように構成された実施形態３の樹脂パッケージは、第１のリード３１の延伸部３１ｃ、３１ｄによって樹脂成形体が補強されて樹脂成形部における亀裂の発生を防止できる。 In the resin package of the third embodiment configured as described above, the resin molded body is reinforced by the stretched portions 31c and 31d of the first lead 31, and the occurrence of cracks in the resin molded portion can be prevented.

実施形態３のリードフレーム３００は、分離領域３３が、第１のリード３１が第２のリード３２１〜３２３の端部のかどで屈曲し第２のリード３２１〜３２３の端部に沿って延伸する延伸部３１ｃ，３１ｄを有しているので、樹脂成形体における亀裂の発生が抑制された樹脂パッケージの作製が可能になる。
また、実施形態３のリードフレーム３００は、第１のリード３１の胴体部が延伸部３１ｃ，３１ｄ及び連結部３１ａとによって４カ所の対角角部でそれぞれ支持されている。これにより、リードフレーム３００の変形を抑制することができ、大判化が可能になる。
さらに、実施形態３のリードフレーム３００は、補強リードを設けることなく、第１のリード３１及び第２のリード３２を保持しているので、ダイシングストリート幅（切断部の幅）を狭くでき、取り個数を多くすることができる。
また、補強リードごと切削する必要がないので、切断スピードを速くでき、製造コストを削減できる。 In the lead frame 300 of the third embodiment, the separation region 33 is formed by bending the first lead 31 at the corner of the second lead 321-23 and extending along the end of the second lead 321-23. Since the stretched portions 31c and 31d are provided, it is possible to manufacture a resin package in which the occurrence of cracks in the resin molded body is suppressed.
Further, in the lead frame 300 of the third embodiment, the body portion of the first lead 31 is supported by the extending portions 31c and 31d and the connecting portion 31a at four diagonal portions, respectively. As a result, the deformation of the lead frame 300 can be suppressed, and the size can be increased.
Further, since the lead frame 300 of the third embodiment holds the first lead 31 and the second lead 32 without providing the reinforcing lead, the dicing street width (width of the cut portion) can be narrowed and removed. The number can be increased.
Moreover, since it is not necessary to cut the entire reinforcing lead, the cutting speed can be increased and the manufacturing cost can be reduced.

以上の本発明において、リードフレームは、例えば、アルミニウム、鉄、ニッケル、銅、銅合金、ステンレス鋼、インバー合金を含む鉄合金などのいずれか１つ以上からなる導電性材料を用いることができる。異種の金属をクラッドしたクラッド材であってもよい。また、リードフレームは、金、銀、ニッケル、パラジウムおよびそれらの合金などでメッキするのが好ましい。
また、リードフレームの厚みは、例えば、５０μｍ〜１０００μｍであり、好ましくは、１００μｍ〜５００μｍとする。また、リードフレームは、目的に応じて厚みを変化させることができる。このリードフレームの厚みは、エッチング（ハーフエッチング）又はプレス加工により変化させることが可能であり、厚みを変化させる場合、延伸部の厚みを薄くすることが好ましく、これにより個々の樹脂パッケージごとに分離する際の切断スピードをより速くでき、製造コストをさらに削減できる。
さらに、リードフレームの第１リードの主要部及び／又は第２リードの主要部に一部が薄くなった凹部又は一部が厚くなった凸部を形成して、その凹部に樹脂をくい込ましたり、凸部を樹脂成形体にくい込ましたり、リードフレームと樹脂成形体との密着面積を大きくしたりすることにより、密着性を向上させることができる。
また、凹部は、第１リードの主要部の外周及び／又は第２リードの主要部の外周に沿った薄肉部により形成することが好ましい。このように主要部の外周に沿って凹部を形成するようにすると、例えば、延伸部の厚みが薄くなるようにエッチングするときに、その延伸部と連続する薄肉部を主要部の外周に沿って形成することにより凹部を形成することができる。 In the above invention, as the lead frame, for example, a conductive material made of any one or more of aluminum, iron, nickel, copper, copper alloy, stainless steel, iron alloy including Invar alloy and the like can be used. It may be a clad material in which dissimilar metals are clad. Further, the lead frame is preferably plated with gold, silver, nickel, palladium or an alloy thereof.
The thickness of the lead frame is, for example, 50 μm to 1000 μm, preferably 100 μm to 500 μm. Further, the thickness of the lead frame can be changed according to the purpose. The thickness of this lead frame can be changed by etching (half etching) or press working, and when the thickness is changed, it is preferable to reduce the thickness of the stretched portion, thereby separating each resin package. The cutting speed can be increased and the manufacturing cost can be further reduced.
Further, the main part of the first lead and / or the main part of the second lead of the lead frame may have a partially thinned concave portion or a partially thickened convex portion, and the resin may be embedded in the concave portion. The adhesion can be improved by inserting the convex portion into the resin molded body or increasing the contact area between the lead frame and the resin molded body.
Further, the recess is preferably formed by a thin portion along the outer circumference of the main portion of the first lead and / or the outer circumference of the main portion of the second lead. When the concave portion is formed along the outer circumference of the main portion in this way, for example, when etching is performed so that the thickness of the stretched portion becomes thin, the thin portion continuous with the stretched portion is formed along the outer circumference of the main portion. By forming, a recess can be formed.

また、樹脂成形体１５、２５、３５の成形材料には、例えば、エポキシ樹脂、シリコーン樹脂などの熱硬化性樹脂のほか、液晶ポリマー、ポリフタルアミド樹脂、ポリブチレンテレフタレート（ＰＢＴ）などの熱可塑性樹脂を用いることができる。また、成形材料中に酸化チタンなどの白色顔料などを混合して、樹脂成形体１５、２５、３５の凹部１６、２６、３６内における光の反射率を高めることもできる。 The molding materials of the resin molded bodies 15, 25, and 35 include, for example, thermosetting resins such as epoxy resin and silicone resin, and thermoplastics such as liquid crystal polymer, polyphthalamide resin, and polybutylene terephthalate (PBT). Resin can be used. It is also possible to mix a white pigment such as titanium oxide in the molding material to increase the reflectance of light in the recesses 16, 26 and 36 of the resin molded bodies 15, 25 and 35.

以上の実施形態１〜３の樹脂パッケージは、凹部１６，２６，３６を有する樹脂成形体により構成したが、本発明はこれに限られるものではなく、凹部のない平板状の樹脂成形体により構成してもよい。 The resin packages of the above embodiments 1 to 3 are composed of a resin molded body having recesses 16, 26, 36, but the present invention is not limited to this, and is composed of a flat plate-shaped resin molded body having no recesses. You may.

１００、２００、３００ リードフレーム
１０，２０，３０ 単位領域
１１，２１，３１ 第１のリード
１１ａ 第１連結部
１１ｂ，１２ｂ，２１ｂ，２２ｂ，３１ｂ，３２１ｂ，３２２ｂ，３２３ｂ 主要部
１１ｃ，２１ｃ，３１ｃ，３１ｄ 延伸部
１２，２２，３２１，３２２，３２３ 第２のリード
１２ａ 第３連結部
１２ｃ 第２連結部
１３，２３，３３ 分離領域
１４，２４，３４樹脂分離部
１５，２５，３５樹脂成形体
１５ａ，２５ａ，３５ａ 凹部の側壁
１６，２６，３６ 凹部
１７，２７，３７ 切断線
１８ 発光素子
１９ ワイヤ
２１ａ，３１ａ，３２１ａ，３２２ａ，３２３ａ 連結部 100, 200, 300 Lead frame 10, 20, 30 Unit area 11,21,31 1st lead 11a 1st connecting part 11b, 12b, 21b, 22b, 31b, 321b, 322b, 323b Main part 11c, 21c, 31c , 31d Stretched part 12, 22, 321, 322, 323 Second lead 12a Third connecting part 12c Second connecting part 13, 23, 33 Separation area 14, 24, 34 Resin separating part 15, 25, 35 Resin molded body 15a, 25a, 35a Side wall of recess 16,26,36 Recess 17,27,37 Cutting line 18 Light emitting element 19 Wire 21a, 31a, 321a, 322a, 323a Connecting part

Claims (4)

凹部を有する樹脂成形体と、前記樹脂成形体に埋設されかつ前記凹部の底面に分離して露出された第１と第２のリードとを備えた樹脂パッケージであって、
前記第１のリードは、
矩形形状の第１主要部又は矩形形状の第１胴体部を有する第１主要部と、
前記第１主要部の第１の一対の対角の一方のかど又はそのかどに近い位置から第１方向に延伸する第１延伸部と、
前記第１主要部の前記第１の一対の対角の他方のかど又はそのかどに近い位置から前記第１方向と反対方向の第２方向に延伸する第２延伸部と、
前記第１主要部の前記第１の一対の対角とは異なる第２の一対の対角の一方のかど又はそのかどに近い位置に設けられて前記第１方向に直交する第３方向に延伸する第１の第１連結部と、
前記第１主要部の前記第２の一対の対角の他方のかど又はそのかどに近い位置から前記第３方向と反対方向の第４方向に延伸する第２の第１連結部と、を有し、
前記第１の第１連結部及び前記第２の第１連結部は、前記第１主要部と同一平面を形成するように延伸し、
前記樹脂成形体は、第１外側面と、前記第１外側面の反対側に位置する第２外側面と、前記第１外側面及び前記第２外側面に直交する第３外側面と、前記第３外側面の反対側に位置する第４外側面と、を有し、
前記第１延伸部の端部は、前記第１外側面から露出し、
前記第２延伸部の端部は、前記第２外側面から露出し、
前記第１の第１連結部の端部は、前記第３外側面から露出し、
前記第２の第１連結部の端部は、前記第４外側面から露出し、
前記第２のリードは、第２主要部と、前記第２主要部から前記第１方向に延伸する第１の第２連結部と、前記第２主要部から前記第３方向に延伸する第１の第３連結部と、有し、
前記第１の第２連結部の端部は、前記第１外側面から露出し、
前記第１の第３連結部の端部は、前記第３外側面から露出する樹脂パッケージ。 A resin package including a resin molded body having a recess and first and second leads embedded in the resin molded body and separated and exposed on the bottom surface of the recess.
The first lead is
A first main part having a rectangular first main part or a rectangular first body part,
A first extending portion extending in the first direction from one of the corners of the first pair of diagonals of the first main portion or a position close to the corner,
A second extending portion extending from the other corner of the first pair of diagonals of the first main portion or a position close to the corner in a second direction opposite to the first direction, and a second extending portion.
Extend in a third direction perpendicular said first said first pair of diagonal of the main part provided on one of excessive or too close in the different second pair of diagonally to the first direction The first first connecting part to be
It has a second first connecting portion extending in a fourth direction opposite to the third direction from a position near the other corner of the second pair of diagonals of the first main portion or a position close to the corner. And
The first first connecting portion and the second first connecting portion are stretched so as to form the same plane as the first main portion.
The resin molded product includes a first outer surface, a second outer surface located on the opposite side of the first outer surface, a third outer surface orthogonal to the first outer surface and the second outer surface, and the above. Has a fourth outer surface located on the opposite side of the third outer surface,
The end of the first stretched portion is exposed from the first outer surface and
The end of the second stretched portion is exposed from the second outer surface and
The end of the first first connecting portion is exposed from the third outer surface.
The end of the second first connecting portion is exposed from the fourth outer surface .
The second lead has a second main portion, a first second connecting portion extending from the second main portion in the first direction, and a first extending from the second main portion in the third direction. With the third connecting part of
The end of the first second connecting portion is exposed from the first outer surface.
The end of the first third connecting portion is a resin package exposed from the third outer surface . 前記第２のリードは、一の第２のリードと、他の第２のリードを備え、前記第１のリードは前記一の第２のリードと前記他の第２のリードの間に位置する請求項１に記載の樹脂パッケージ。 It said second lead is provided with one second lead, the other of the second lead, the first lead is located between the other of the second lead and the second lead of the one The resin package according to claim 1 . 前記他の第２のリードは、第３主要部と、前記第３主要部から前記第２方向に延伸する第２の第２連結部と、前記第３主要部から前記第４方向に延伸する第２の第３連結部と、有し、
前記第２の第２連結部の端部は、前記第２外側面から露出し、
前記第２の第３連結部の端部は、前記第４外側面から露出する請求項２に記載の樹脂パッケージ。 The other second lead extends in the fourth direction from the third main part, the second second connecting part extending from the third main part in the second direction, and the third main part. With the second third connecting part,
The end of the second second connecting portion is exposed from the second outer surface.
The resin package according to claim 2 , wherein the end portion of the second third connecting portion is exposed from the fourth outer surface. 前記凹部の底面に前記第１主要部が配置されている請求項１〜３のうちのいずれか１つに記載の樹脂パッケージ。 The resin package according to any one of claims 1 to 3 , wherein the first main portion is arranged on the bottom surface of the recess.
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