JP6485776B2 - Wiring member for multi-row type semiconductor device and manufacturing method thereof - Google Patents

Wiring member for multi-row type semiconductor device and manufacturing method thereof Download PDF

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JP6485776B2
JP6485776B2 JP2016109299A JP2016109299A JP6485776B2 JP 6485776 B2 JP6485776 B2 JP 6485776B2 JP 2016109299 A JP2016109299 A JP 2016109299A JP 2016109299 A JP2016109299 A JP 2016109299A JP 6485776 B2 JP6485776 B2 JP 6485776B2
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plating layer
semiconductor device
wiring
resist
metal plate
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JP2017216364A (en
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薫 菱木
薫 菱木
一則 飯谷
一則 飯谷
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大口マテリアル株式会社
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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
    • H01L2224/481—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
    • H01L2224/73—Means 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
    • H01L2224/732—Location after the connecting process
    • H01L2224/73251—Location after the connecting process on different surfaces
    • H01L2224/73265—Layer and wire connectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/15—Details of package parts other than the semiconductor or other solid state devices to be connected
    • H01L2924/181—Encapsulation

Description

本発明は、半導体素子をフリップチップ実装するための多列型半導体装置用配線部材及びその製造方法に関する。   The present invention relates to a multi-row semiconductor device wiring member for flip-chip mounting a semiconductor element and a method for manufacturing the same.

従来、半導体装置用基板には、例えば、次の特許文献１に記載のように、半導体素子を実装し、樹脂で封止後に、基材を引き剥がすことによって半導体装置を完成させるタイプのものがある。   2. Description of the Related Art Conventionally, as described in Patent Document 1, for example, a substrate for a semiconductor device is a type in which a semiconductor element is completed by mounting a semiconductor element, sealing with resin, and then peeling off the substrate. is there.

特許文献１に記載の半導体装置用基板は、例えば、図６(a)に示すように、例えば、ステンレス鋼材からなる基材５１の上に、夫々金属めっき層で形成された、半導体素子搭載部５２ａと、端子部５２ｂを備えている。端子部５２ｂは、内部端子面５２ｂ１と外部端子面５２ｂ２とが表裏一体となるような形状に形成されている。
半導体素子搭載部５２ａ及び端子部５２ｂの半導体素子搭載側には、上端周縁に略庇形状の張り出し部５２ａ１，５２ｂ３が形成されている。また、半導体素子搭載部５２ａ又は端子部５２ｂの基材側には、外部端子面として半導体装置実装時の半田付けを適切に行えるようにするために、例えば、Ａｕ等の薄膜が、めっき形成されている。
そして、図６(a)の半導体装置用基板を用いた半導体装置の製造では、半導体素子搭載部５２ａに半導体素子５３を搭載し、半導体素子５３の電極と端子部５２ｂとをワイヤ５４で接合し、半導体素子５３を搭載した側を樹脂で封止して封止樹脂部５５を形成した後、基材５１を引き剥がして、半導体装置を完成させる（図６(b)〜図６(d)参照）。 The semiconductor device substrate described in Patent Document 1, for example, as shown in FIG. 6 (a), is, for example, a semiconductor element mounting portion formed by a metal plating layer on a base material 51 made of stainless steel. 52a and a terminal portion 52b. The terminal portion 52b is formed in a shape such that the internal terminal surface 52b1 and the external terminal surface 52b2 are integrated with each other.
On the semiconductor element mounting side of the semiconductor element mounting part 52a and the terminal part 52b, substantially hook-shaped protruding parts 52a1 and 52b3 are formed on the periphery of the upper end. Further, a thin film such as Au, for example, is plated on the base material side of the semiconductor element mounting portion 52a or the terminal portion 52b in order to appropriately perform soldering when mounting the semiconductor device as the external terminal surface. ing.
6A, the semiconductor element 53 is mounted on the semiconductor element mounting portion 52a, and the electrode of the semiconductor element 53 and the terminal portion 52b are joined by the wire 54. In the manufacturing of the semiconductor device using the semiconductor device substrate of FIG. Then, the side on which the semiconductor element 53 is mounted is sealed with resin to form the sealing resin portion 55, and then the base material 51 is peeled off to complete the semiconductor device (FIGS. 6B to 6D). reference).

また、従来、半導体装置用基板には、例えば、次の特許文献２に記載のように、ＢＧＡ（Ｂａｌｌ Ｇｒｉｄ Ａｒｒａｙ）構造の半導体装置に用いられる、金属板上に、内部端子、外部端子及び配線部を金属めっきで形成したタイプのものがある。   Conventionally, as described in Patent Document 2 below, for example, a semiconductor device substrate includes an internal terminal, an external terminal, and a wiring on a metal plate used in a semiconductor device having a BGA (Ball Grid Array) structure. There is a type in which the part is formed by metal plating.

特許文献２に記載の半導体装置用基板は、例えば、図７(a)に示すように、基材をなす金属板６１上に金属板側から外部端子部６２を有する外部端子側めっき層が形成され、その上に中間層６３が同じ形状で形成され、更にその上に内部端子部６４を有する内部端子側めっき層が同じ形状で形成された半導体装置用基板が開示されている。この半導体装置用基板は、半導体素子と電気的接続される内部端子部６４を有する内部端子側めっき層の面が最上面となるように形成されており、金属板から最上面までの高さは、全体がほぼ同じ高さに形成される構成となっている。   In the semiconductor device substrate described in Patent Document 2, for example, as shown in FIG. 7A, an external terminal side plating layer having external terminal portions 62 from the metal plate side is formed on the metal plate 61 forming the base material. Further, there is disclosed a semiconductor device substrate in which an intermediate layer 63 is formed in the same shape thereon, and an internal terminal side plating layer having an internal terminal portion 64 is further formed in the same shape. This substrate for a semiconductor device is formed such that the surface of the internal terminal side plating layer having the internal terminal portion 64 electrically connected to the semiconductor element is the uppermost surface, and the height from the metal plate to the uppermost surface is The whole is formed to have substantially the same height.

特許文献２に記載の半導体装置用基板は、半導体装置を製造する際には、外部端子面は金属板側の面に接し、内部端子面は金属板とは反対側の面を露出させた状態で用いる。詳しくは、半導体装置用基板の内部端子面側に半導体素子６５を搭載して接着剤層６６で固定し、半導体素子６５の電極と内部端子部６４をワイヤ６７で接続後、樹脂で封止して封止樹脂部６８を形成し、封止樹脂部６８で封止後に金属板をエッチングによる溶解等により除去することで封止した樹脂の裏面を、外部端子部６２を有する外部端子側めっき層の面が露出した状態にする。その後、露出した外部端子側めっき層の面全体を覆うソルダーレジスト６９を形成し、外部端子部６２のみが露出する開口部７０を形成する(図７(b)〜図７(e)参照)。そして、開口部７０に露出した外部端子部６２に半田ボール７１を埋め込み、外部機器と接合する（図７(f)参照）。   In the semiconductor device substrate described in Patent Document 2, when the semiconductor device is manufactured, the external terminal surface is in contact with the surface on the metal plate side, and the internal terminal surface is exposed on the surface opposite to the metal plate. Used in. Specifically, the semiconductor element 65 is mounted on the internal terminal surface side of the substrate for a semiconductor device and fixed by the adhesive layer 66, and the electrode of the semiconductor element 65 and the internal terminal portion 64 are connected by the wire 67 and then sealed with resin. The sealing resin portion 68 is formed, and after sealing with the sealing resin portion 68, the back surface of the resin sealed by removing the metal plate by dissolution or the like by etching or the like is provided on the external terminal side plating layer having the external terminal portion 62. Make sure that the surface of is exposed. Thereafter, a solder resist 69 that covers the entire surface of the exposed external terminal side plating layer is formed, and an opening 70 that exposes only the external terminal 62 is formed (see FIGS. 7B to 7E). Then, a solder ball 71 is embedded in the external terminal portion 62 exposed in the opening 70 and joined to an external device (see FIG. 7 (f)).

特開２０１５−１８５６１９号公報Japanese Patent Laying-Open No. 2015-185619 特開２００９−１６４５９４号公報JP 2009-164594 A

しかし、特許文献１及び特許文献２に記載の半導体装置用基板のように構成された従来の半導体装置用基板には、次のような問題がある。
即ち、特許文献１に記載の半導体装置用基板は、半導体素子５３の電極と端子部５２ｂとを電気的に接続するためのワイヤボンディングを行うためのスペースが、半導体素子５３の上面よりもさらに高さ方向に必要となるため、その分、小型化／薄型化の支障となる。 However, the conventional semiconductor device substrate configured as the semiconductor device substrate described in Patent Document 1 and Patent Document 2 has the following problems.
That is, in the semiconductor device substrate described in Patent Document 1, a space for wire bonding for electrically connecting the electrode of the semiconductor element 53 and the terminal portion 52 b is higher than that of the upper surface of the semiconductor element 53. Since it is necessary in the vertical direction, it becomes an obstacle to downsizing / thinning.

また、特許文献１に記載の半導体装置用基板は、半導体装置の薄型化のために、半導体素子をフリップチップ実装させるようにしても、端子部５２ｂは、内部端子面５２ｂ１と外部端子面５２ｂ２とが表裏一体となるような形状に形成されており、内部端子と外部端子を表面と裏面の同一位置で機能させる構成となっている。このため、外部端子の接続ピッチにより、内部端子の接続ピッチが定められ、内部端子と接続する半導体素子の小型化が制限されてしまう。   Further, in the semiconductor device substrate described in Patent Document 1, even if the semiconductor element is flip-chip mounted for thinning the semiconductor device, the terminal portion 52b includes the internal terminal surface 52b1 and the external terminal surface 52b2. Is formed so that the front and back are integrated, and the internal terminal and the external terminal function at the same position on the front surface and the back surface. For this reason, the connection pitch of the internal terminals is determined by the connection pitch of the external terminals, which limits the miniaturization of the semiconductor element connected to the internal terminals.

また、特許文献１に記載の半導体装置用基板は、半導体素子５３を搭載し、樹脂で封止した後に、基材５１を引き剥がして、めっき形成された半導体素子搭載部５２ａ及び端子部５２ｂの面を露出させるに際し、めっき被膜と封止樹脂部５５の密着性と、めっき被膜と基材５１の密着性の相互のバランスに次のような問題があった。即ち、特許文献１に記載の半導体装置用基板は、めっき形成される半導体素子搭載部５２ａ及び端子部５２ｂには、上端周縁に略庇形状の張り出し部５２ａ１，５２ｂ１が形成されているが、張り出し部５２ａ１，５２ｂ１は、肉厚が薄いため、封止樹脂部５５との密着性が弱く、しかも変形し易い。一方、特許文献１に記載の半導体装置用基板における、基材５１をなすステンレス鋼材の表面には、半導体素子搭載部５２ａ又は端子部５２ｂにおける外部接続端子面として半導体装置実装時の半田付けを適切に行えるようにするために、例えば、Ａｕ等の薄膜がめっき形成されているが、Ａｕ被膜からステンレス鋼材を引き剥がすことが難しい。   In addition, the semiconductor device substrate described in Patent Document 1 has the semiconductor element 53 mounted and sealed with resin, and then the base material 51 is peeled off to form the plated semiconductor element mounting portion 52a and the terminal portion 52b. When exposing the surface, there was the following problem in the mutual balance between the adhesion between the plating film and the sealing resin portion 55 and the adhesion between the plating film and the substrate 51. That is, in the semiconductor device substrate described in Patent Document 1, the semiconductor element mounting portion 52a and the terminal portion 52b to be plated are formed with substantially bowl-shaped projecting portions 52a1 and 52b1 on the periphery of the upper end. Since the portions 52a1 and 52b1 are thin, their adhesion to the sealing resin portion 55 is weak and easily deformed. On the other hand, in the semiconductor device substrate described in Patent Document 1, the surface of the stainless steel material forming the base 51 is appropriately soldered when mounting the semiconductor device as an external connection terminal surface in the semiconductor element mounting portion 52a or the terminal portion 52b. For example, a thin film such as Au is formed by plating, but it is difficult to peel the stainless steel material from the Au coating.

特許文献１に記載の半導体装置用基板において、めっき被膜を封止樹脂部５５に密着させるためには、めっき被膜に所定以上の厚さが必要となる。しかし、半導体素子搭載部５２ａ及び端子部５２ｂを形成するめっき被膜を厚くすると、めっき厚のバラツキも大きくなる。めっき厚のバラツキが大きいと、フリップチップ実装時の接合部位の高さのバラツキにより接合不良を生じる虞がある。   In the semiconductor device substrate described in Patent Document 1, in order for the plating film to adhere to the sealing resin portion 55, the plating film needs to have a thickness greater than a predetermined thickness. However, if the plating film forming the semiconductor element mounting portion 52a and the terminal portion 52b is thickened, the variation in the plating thickness also increases. If the plating thickness variation is large, there is a risk that bonding failure may occur due to the variation in the height of the bonding portion during flip chip mounting.

また、特許文献１に記載の半導体装置用基板は、一方の側に封止樹脂部５５を形成するように構成されているため、封止樹脂硬化後に封止樹脂部５５に反りが生じる虞がある。詳しくは、封止樹脂部５５が基材５１と密着する状態においては、基材５１により硬化した封止樹脂部５５の反りを矯正する力が働いているが、基材５１を剥離除去後には、基材５１の矯正力が無くなる結果、封止樹脂部５５が所定方向に反り易くなる。   In addition, since the semiconductor device substrate described in Patent Document 1 is configured to form the sealing resin portion 55 on one side, the sealing resin portion 55 may be warped after the sealing resin is cured. is there. Specifically, in the state where the sealing resin portion 55 is in close contact with the base material 51, a force is applied to correct the warp of the sealing resin portion 55 cured by the base material 51. As a result of the lack of correction force of the base material 51, the sealing resin portion 55 is likely to warp in a predetermined direction.

また、特許文献２に記載の半導体装置用基板も、半導体素子６５の電極と内部端子部６４を接続するためのワイヤボンディングを行うためのスペースが、半導体素子６５の上面よりもさらに高さ方向に必要となるため、その分、小型化／薄型化の支障となる。   In addition, in the semiconductor device substrate described in Patent Document 2, the space for wire bonding for connecting the electrode of the semiconductor element 65 and the internal terminal portion 64 is further higher than the upper surface of the semiconductor element 65. Therefore, it becomes an obstacle to downsizing / thinning.

なお、特許文献２に記載の半導体装置用基板は、外部端子部６２を有する外部端子側めっき層、中間層６３、内部端子部６４を有する内部端子側めっき層が同じ形状に積層され、内部端子部６４と外部端子部６２との間に配線部を有する構成となっているため、内部端子と外部端子は、配線部の設計に応じてピッチを調整可能である。
しかし、特許文献２に記載の半導体装置用基板は、半導体装置の製造において、封止樹脂部６８を形成し、基材を除去後に、外部端子部６２と配線部の外部端子側の面が露出し、酸化により劣化し易い。配線部の露出による劣化を防止するためには、基材を溶解除去後に、露出した外部端子部６２と配線部を覆うために、露出した外部端子側の面全体を覆う、ソルダーレジスト６９を塗布、露光、現像を行い、外部端子部６２のみが露出する開口部７０を形成する必要がある。しかし、ソルダーレジストの現像の際に、外部端子部６２と封止樹脂部６８との界面から水分や薬品が浸入し、半導体装置を劣化させる虞がある。 In the semiconductor device substrate described in Patent Document 2, the external terminal side plating layer having the external terminal portion 62, the intermediate layer 63, and the internal terminal side plating layer having the internal terminal portion 64 are laminated in the same shape, and the internal terminal Since the wiring portion is provided between the portion 64 and the external terminal portion 62, the pitch of the internal terminal and the external terminal can be adjusted according to the design of the wiring portion.
However, in the semiconductor device substrate described in Patent Document 2, the external terminal portion 62 and the surface of the wiring portion on the external terminal side are exposed after forming the sealing resin portion 68 and removing the base material in the manufacture of the semiconductor device. However, it is easily deteriorated by oxidation. In order to prevent deterioration due to the exposure of the wiring portion, after the base material is dissolved and removed, a solder resist 69 is applied to cover the exposed external terminal side 62 and the entire surface on the external terminal side in order to cover the wiring portion. Then, it is necessary to perform exposure and development to form the opening 70 where only the external terminal portion 62 is exposed. However, when developing the solder resist, moisture and chemicals may enter from the interface between the external terminal portion 62 and the sealing resin portion 68, and the semiconductor device may be deteriorated.

また、特許文献２に記載の半導体装置用基板は、外部端子部６２を有する外部端子側めっき層、中間層６３、内部端子部６４を有する内部端子側めっき層が同じ形状に積層されているため、樹脂との密着性が弱い。   In the semiconductor device substrate described in Patent Document 2, the external terminal side plating layer having the external terminal portion 62, the intermediate layer 63, and the internal terminal side plating layer having the internal terminal portion 64 are laminated in the same shape. Adhesion with resin is weak.

また、特許文献２に記載の半導体装置用基板のように、金属板側から外部端子側めっき層を形成し、最上層に内部端子側めっき層を形成すると実際の生産においてはめっき厚のばらつきが発生し、例えばめっきの厚さが約３０μｍの場合３〜７μｍ程度の高低差が生じることから、半導体素子６５を搭載して内部端子部６４と電気的な接続を行う際に、半導体素子６５が傾いた状態で搭載されたり、電気的な接続において導通不良となったりする可能性がある。   In addition, when the external terminal side plating layer is formed from the metal plate side and the internal terminal side plating layer is formed on the uppermost layer as in the semiconductor device substrate described in Patent Document 2, there is a variation in plating thickness in actual production. For example, when the plating thickness is about 30 μm, a height difference of about 3 to 7 μm occurs. Therefore, when the semiconductor element 65 is mounted and electrically connected to the internal terminal portion 64, the semiconductor element 65 is There is a possibility that the device is mounted in an inclined state or that electrical connection is poor in electrical connection.

また、特許文献２に記載の半導体装置用基板は、半導体素子６５を搭載し、樹脂で封止した後に、基材６１をエッチング除去することを想定した構成となっているが、半導体素子組立て後に基材６１をエッチング除去すると、エッチング液が端子と樹脂の界面から浸入して半導体装置６５を劣化させる虞がある。   Further, the substrate for a semiconductor device described in Patent Document 2 is configured to assume that the base material 61 is removed by etching after the semiconductor element 65 is mounted and sealed with resin. When the base member 61 is removed by etching, the etching solution may enter from the interface between the terminal and the resin, and the semiconductor device 65 may be deteriorated.

また、特許文献２に記載の半導体装置用基板も、一方の側に封止樹脂部６８を形成するように構成されているため、封止樹脂硬化後に封止樹脂部６８に反りが生じる虞がある。詳しくは、封止樹脂部６８が基材６１と密着する状態においては、基材６１により硬化した封止樹脂部６８の反りを矯正する力が働いているが、基材６１を溶解除去後には、基材６１の矯正力が無くなる結果、封止樹脂部６８が所定方向に反り易くなる。   Further, since the semiconductor device substrate described in Patent Document 2 is also configured to form the sealing resin portion 68 on one side, the sealing resin portion 68 may be warped after the sealing resin is cured. is there. Specifically, in the state where the sealing resin portion 68 is in close contact with the base material 61, a force is applied to correct the warp of the sealing resin portion 68 cured by the base material 61. As a result of the lack of correction force of the base material 61, the sealing resin portion 68 is likely to warp in a predetermined direction.

そこで、本件発明者は、試行錯誤を重ねた末に、本発明を導出する前段階において、半導体装置を薄型化、小型化でき、端子部を構成するめっき被膜と樹脂との密着性を向上させ、半導体素子を搭載する内部端子側めっき層の面および半導体素子と電気的接続をする内部端子部の高さを均一にでき、更に半導体装置の製造工程において金属板のエッチング除去や外部端子部のみが露出する開口部を形成する工程が省略でき、封止樹脂硬化後の樹脂の反りを軽減でき、半導体装置製造時の工程数を削減して、信頼性の高い樹脂封止型半導体装置を製造可能な半導体装置用配線部材及びその製造方法の発明を着想した。
そして、本件発明者が、更に検討・考察を重ねたところ、着想した前段階の半導体装置用配線部材及びその製造方法には、半導体装置の量産化に際し改良すべき課題があることが判明した。 Therefore, the present inventor, after trial and error, can reduce the thickness and size of the semiconductor device and improve the adhesion between the plating film constituting the terminal portion and the resin in the stage before deriving the present invention. The surface of the internal terminal side plating layer on which the semiconductor element is mounted and the height of the internal terminal part that is electrically connected to the semiconductor element can be made uniform. Further, in the manufacturing process of the semiconductor device, the metal plate is removed by etching or only the external terminal part The process of forming the opening where the resin is exposed can be omitted, the warping of the resin after the sealing resin is cured can be reduced, and the number of processes during the manufacture of the semiconductor device is reduced to manufacture a highly reliable resin-encapsulated semiconductor device Invented a possible wiring member for a semiconductor device and an invention of its manufacturing method.
As a result of further investigation and consideration by the inventor of the present invention, it was found that the semiconductor device wiring member and the manufacturing method thereof that had been conceived have problems to be improved when mass-producing semiconductor devices.

本発明は、このような問題に鑑みてなされたものであり、半導体装置を薄型化、小型化でき、端子部を構成するめっき被膜と樹脂との密着性を向上させ、半導体素子を搭載する内部端子側めっき層の面および半導体素子と電気的接続をする内部端子部の高さを均一にでき、更に半導体装置の製造工程において金属板のエッチング除去や外部端子部のみが露出する開口部を形成する工程を省略でき、封止樹脂硬化後の樹脂の反りを軽減でき、半導体装置製造時の工程数を削減して、信頼性の高い樹脂封止型半導体装置を歩留まり良く量産可能な多列型半導体装置用配線部材及びその製造方法を提供することを目的としている。   The present invention has been made in view of such a problem, and can reduce the thickness and size of a semiconductor device, improve the adhesion between a plating film constituting a terminal portion and a resin, and mount a semiconductor element. The surface of the terminal side plating layer and the height of the internal terminal part that is electrically connected to the semiconductor element can be made uniform, and furthermore, the metal plate is removed by etching and an opening that exposes only the external terminal part is formed in the manufacturing process of the semiconductor device. Can reduce the warping of the resin after curing the sealing resin, reduce the number of processes when manufacturing semiconductor devices, and can produce highly reliable resin-encapsulated semiconductor devices with high yield It aims at providing the wiring member for semiconductor devices, and its manufacturing method.

上記の目的を達成するために、本発明による多列型半導体装置用配線部材は、永久レジストの一方の側の面における所定部位に内部端子となる第１のめっき層が下面を該永久レジストの一方の側の面に露出させた状態で形成され、前記第１のめっき層と接続する配線部となるめっき層が形成され、更に前記配線部となるめっき層の上に該配線部となるめっき層の領域内で部分的に外部端子となる第２のめっき層が上面を前記永久レジストの他方の側の面から露出させた状態で形成され、前記内部端子と前記配線部と前記外部端子を構成し、側面形状が、略Ｌ字形状又は略Ｔ字形状に形成されている、めっき層の積層体を複数備えてなる半導体装置用配線部材が、マトリックス状に配列された多列型半導体装置用配線部材であって、前記永久レジストの一方の側の面における、個々の前記半導体装置用配線部材がマトリックス状に配列された半導体装置用配線部材の集合体の外周領域に金属枠部が形成され、前記配線部となるめっき層は、前記第１のめっき層の上面及び側面に接続した状態で該第１のめっき層を取り囲み、該第１のめっき層の側方に位置する該配線部となるめっき層の下面が前記永久レジストの一方の側の面に露出するように形成されていることを特徴としている。   In order to achieve the above object, the wiring member for a multi-row semiconductor device according to the present invention has a first plating layer serving as an internal terminal at a predetermined portion on one side surface of the permanent resist and the lower surface of the permanent resist. A plating layer is formed in a state of being exposed on one side surface, and a plating layer serving as a wiring portion connected to the first plating layer is formed. Further, plating serving as the wiring portion is formed on the plating layer serving as the wiring portion. A second plating layer partially serving as an external terminal in the region of the layer is formed in a state where the upper surface is exposed from the surface on the other side of the permanent resist, and the internal terminal, the wiring portion, and the external terminal are formed A multi-row type semiconductor device in which wiring members for a semiconductor device comprising a plurality of laminated layers of plating layers, the side surfaces of which are formed in a substantially L shape or a substantially T shape, are arranged in a matrix. Wiring member, wherein the permanent record A metal layer is formed on the outer peripheral region of the assembly of the semiconductor device wiring members in which the individual semiconductor device wiring members are arranged in a matrix on one side of the strike, and a plating layer serving as the wiring portion Encloses the first plating layer in a state of being connected to the upper surface and the side surface of the first plating layer, and the lower surface of the plating layer serving as the wiring portion located on the side of the first plating layer is the permanent plate. It is characterized by being formed so as to be exposed on the surface of one side of the resist.

また、本発明の多列型半導体装置用配線部材においては、前記第１のめっき層の上に形成されている前記配線部となるめっき層の上面は、粗化面であるのが好ましい。このようにすれば、第１のめっき層と配線部となるめっき層の厚さが例えば５μｍ以下の薄いめっき層であっても、永久レジストからの剥がれを防止できる。   In the wiring member for a multi-row type semiconductor device of the present invention, it is preferable that the upper surface of the plating layer serving as the wiring portion formed on the first plating layer is a roughened surface. In this way, even if the thickness of the first plating layer and the plating layer serving as the wiring portion is a thin plating layer of, for example, 5 μm or less, peeling from the permanent resist can be prevented.

また、本発明の多列型半導体装置用配線部材においては、前記第１のめっき層が露出した前記永久レジストの一方の側の面は、粗面であるのが好ましい。   In the wiring member for a multi-row semiconductor device of the present invention, it is preferable that the surface on one side of the permanent resist from which the first plating layer is exposed is a rough surface.

また、本発明による多列型半導体装置用配線部材の製造方法は、永久レジストの一方の側の面における所定部位に内部端子となる第１のめっき層が下面を該永久レジストの一方の側の面に露出させた状態で形成され、前記第１のめっき層と接続する配線部となるめっき層が形成され、更に前記配線部となるめっき層の上に該配線部となるめっき層の領域内で部分的に外部端子となる第２のめっき層が上面を前記永久レジストの他方の側の面から露出させた状態で形成され、前記内部端子と前記配線部と前記外部端子を構成し、側面形状が、略Ｌ字形状又は略Ｔ字形状に形成されている、めっき層の積層体を複数備えてなる半導体装置用配線部材がマトリックス状に配列された多列型半導体装置用配線部材の製造方法であって、金属板の他方の側の面にパターンＡの開口部を有する第１のレジストマスクを形成するとともに、前記金属板の一方の側の面全体を覆う第１のレジストマスクを形成する工程と、前記パターンＡの開口部に内部端子となる第１のめっき層を形成する工程と、前記金属板の両面に形成された前記第１のレジストマスクを除去する工程と、前記金属板の他方の側の面に、前記第１のめっき層を取り囲む広さのパターンＢの開口部を有する第２のレジストマスクを形成するとともに、前記金属板の一方の側の面に、半導体装置用配線部材の集合体の外周領域に開口部を有する第２のレジストマスクを形成する工程と、前記パターンＢの開口部に配線部となるめっき層を、前記第１のめっき層を取り囲むように形成するとともに、前記外周領域の開口部に金属枠部形成用レジストとなるめっき層を形成する工程と、前記金属板の両面に形成された前記第２のレジストマスクを除去する工程と、前記金属板の他方の側の面に前記配線部となるめっき層の領域内において一部が露出するパターンＣの開口部を有する永久レジストからなる第３のレジストマスクを形成するとともに、前記金属板の一方の側の面全体を覆う感光レジストからなる第３のレジストマスクを形成する工程と、前記パターンＣの開口部に外部端子となる第２のめっき層を形成する工程と、前記金属板の一方の側の面に形成された前記第３のレジストマスクを除去する工程と、前記金属板における、前記半導体装置用配線部材の集合体の外周領域に形成した前記金属枠部形成用レジストとなるめっき層で覆われていない部位の金属をエッチングにより除去する工程と、を有することを特徴としている。   Further, in the method for manufacturing a wiring member for a multi-row semiconductor device according to the present invention, the first plating layer serving as an internal terminal is placed on the lower surface of the permanent resist on one side of the permanent resist at a predetermined portion on the one side of the permanent resist. A plating layer that is formed in a state of being exposed on the surface and that serves as a wiring portion connected to the first plating layer is formed, and further on the plating layer that serves as the wiring portion, in the region of the plating layer that serves as the wiring portion A second plating layer partially serving as an external terminal is formed in a state where the upper surface is exposed from the surface on the other side of the permanent resist, constituting the internal terminal, the wiring portion, and the external terminal; Manufacture of a multi-row type semiconductor device wiring member in which a plurality of plating layer laminates each having a substantially L-shape or T-shape are arranged in a matrix. Method of the other of the metal plates Forming a first resist mask having an opening of pattern A on the surface of the metal plate, and forming a first resist mask covering the entire surface of one side of the metal plate; A step of forming a first plating layer serving as an internal terminal; a step of removing the first resist mask formed on both surfaces of the metal plate; and a step of removing the first resist mask on the other side of the metal plate. Forming a second resist mask having a pattern B opening that surrounds the plating layer, and having an opening in the outer peripheral region of the semiconductor device wiring member assembly on one surface of the metal plate. Forming a second resist mask having a pattern, and forming a plating layer as a wiring portion in the opening of the pattern B so as to surround the first plating layer, and forming a metal in the opening in the outer peripheral region. Frame shape Forming a plating layer to be a resist for the metal, removing the second resist mask formed on both surfaces of the metal plate, and a plating layer to be the wiring portion on the other side of the metal plate Forming a third resist mask made of a permanent resist having an opening portion of a pattern C partially exposed in the region, and a third resist made of a photosensitive resist covering the entire surface on one side of the metal plate Forming a mask; forming a second plating layer serving as an external terminal in the opening of the pattern C; and removing the third resist mask formed on one surface of the metal plate And etching the portion of the metal plate that is not covered with the plating layer serving as the metal frame forming resist formed in the outer peripheral region of the assembly of the wiring members for a semiconductor device. And a step of removing by the cleaning.

また、本発明の多列型半導体装置用配線部材の製造方法においては、前記配線部となるめっき層の形成後、且つ、前記第３のレジストマスクの形成前に、前記配線部となるめっき層の上面に、粗化処理を施すか、あるいは前記配線部となるめっき層が粗化めっき層として形成されるのが好ましい。   In the method for manufacturing a wiring member for a multi-row semiconductor device of the present invention, the plating layer that becomes the wiring portion after the formation of the plating layer that becomes the wiring portion and before the formation of the third resist mask. It is preferable that a roughening treatment is performed on the upper surface of the substrate, or a plating layer serving as the wiring portion is formed as a roughening plating layer.

また、本発明の多列型半導体装置用配線部材の製造方法においては、前記金属板の両面に形成された前記第２のレジストマスクを除去した後、前記金属板に形成された前記配線部となるめっき層をマスクとして前記金属板表面を粗化処理する工程を含むのが好ましい。   In the method for manufacturing a wiring member for a multi-row semiconductor device according to the present invention, after removing the second resist mask formed on both surfaces of the metal plate, the wiring portion formed on the metal plate; It is preferable to include a step of roughening the surface of the metal plate using the plating layer as a mask.

本発明によれば、半導体装置を薄型化、小型化でき、端子部を構成するめっき被膜と樹脂との密着性を向上させ、半導体素子を搭載する内部端子側めっき層の面および半導体素子と電気的接続をする内部端子部の高さを均一にでき、更に半導体装置の製造工程において金属板のエッチング除去や外部端子部のみが露出する開口部を形成する工程を省略でき、封止樹脂硬化後の樹脂の反りを軽減でき、半導体装置製造時の工程数を削減して、信頼性の高い樹脂封止型半導体装置を歩留まり良く量産可能な多列型半導体装置用配線部材及びその製造方法が得られる。   According to the present invention, the semiconductor device can be thinned and miniaturized, the adhesion between the plating film constituting the terminal portion and the resin is improved, the surface of the internal terminal side plating layer on which the semiconductor element is mounted, the semiconductor element and the electric The height of the internal terminal part to be connected can be made uniform, and further, the process of removing the metal plate by etching and forming the opening part where only the external terminal part is exposed can be omitted in the manufacturing process of the semiconductor device. A wiring member for a multi-row type semiconductor device and a method for manufacturing the same can be obtained, which can reduce the warping of the resin and reduce the number of processes during the manufacture of the semiconductor device, thereby enabling mass production of a highly reliable resin-encapsulated semiconductor device with a high yield. It is done.

本発明の第１実施形態にかかる多列型半導体装置用配線部材の構成を示す図で、(a)は外部端子側からみた平面図、(b)は(a)の部分拡大図、(c)は(b)のＡ−Ａ断面図、(d)は(a)の多列型半導体装置用配線部材に備わる個々の半導体装置用配線部材における内部端子、配線部及び外部端子を構成するめっき層の積層体の構成の一例を示す平面図、(e)は(d)の断面図である。1A and 1B are diagrams showing a configuration of a wiring member for a multi-row semiconductor device according to a first embodiment of the present invention, in which FIG. 1A is a plan view seen from an external terminal side, FIG. 2B is a partially enlarged view of FIG. ) Is a cross-sectional view taken along the line AA of (b), and (d) is a plating that constitutes internal terminals, wiring portions, and external terminals in the individual semiconductor device wiring members provided in the multi-row semiconductor device wiring member of (a). FIG. 5E is a plan view showing an example of the configuration of a layered structure, and FIG. 5E is a sectional view of FIG. 第１実施形態にかかる多列型半導体装置用配線部材における、半導体装置用配線部材の集合体の外周領域に形成する金属枠部の配置構成を示す説明図で、(a)はその一例を示す平面図、(b)は(a)の断面図、(c)は他の例を示す平面図、(d)は(c)の断面図である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory diagram showing an arrangement configuration of metal frame portions formed in an outer peripheral region of an assembly of semiconductor device wiring members in a multi-row semiconductor device wiring member according to a first embodiment. (B) is a cross-sectional view of (a), (c) is a plan view showing another example, and (d) is a cross-sectional view of (c). 図１に示す多列型半導体装置用配線部材の製造工程を示す説明図である。It is explanatory drawing which shows the manufacturing process of the wiring member for multi-row type semiconductor devices shown in FIG. 図３に示す製造工程を経て製造された第１実施形態の多列型半導体装置用配線部材を用いた樹脂封止型半導体装置の製造工程の一例を示す説明図である。It is explanatory drawing which shows an example of the manufacturing process of the resin sealing type | mold semiconductor device using the wiring member for multi-column type semiconductor devices of 1st Embodiment manufactured through the manufacturing process shown in FIG. 図４に示す製造工程における個々の半導体装置用配線部材に対する半導体素子のフリップチップ実装態様を示す図で、(a)は半導体素子搭載側からみた平面図、(b)は(a)の断面図である。FIGS. 5A and 5B are diagrams showing a flip-chip mounting mode of semiconductor elements on individual semiconductor device wiring members in the manufacturing process shown in FIGS. 4A and 4B, and FIG. 5A is a plan view seen from the semiconductor element mounting side, and FIG. It is. 従来の半導体装置用基板を用いた半導体装置の製造工程の一例を示す説明図である。It is explanatory drawing which shows an example of the manufacturing process of the semiconductor device using the board | substrate for conventional semiconductor devices. 従来の半導体装置用基板を用いた半導体装置の製造工程の他の例を示す説明図である。It is explanatory drawing which shows the other example of the manufacturing process of the semiconductor device using the conventional board | substrate for semiconductor devices. 本発明を導出する前段階において着想した発明にかかる半導体装置用配線部材の構成を示す図で、(a)は平面図、(b)は断面図である。BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the structure of the wiring member for semiconductor devices concerning the invention conceived in the previous step which derives this invention, (a) is a top view, (b) is sectional drawing.

実施形態の説明に先立ち、本発明を導出するに至った経緯及び本発明の作用効果について説明する。
上述のように、本件発明者は、試行錯誤を重ねた末に、本発明を導出する前段階において、半導体素子を搭載する内部端子面および半導体素子と電気的接続をする内部端子部の高さを均一にできる半導体素子用配線部材であり、更に半導体装置の製造工程において金属板のエッチング除去や外部端子部のみが露出する開口部を形成する工程が省略できる半導体素子用配線部材とすることで、半導体装置製造時の工程数を削減して、信頼性の高い樹脂封止型半導体装置を製造可能な半導体装置用配線部材及びその製造方法の発明を着想した。 Prior to the description of the embodiments, the background of deriving the present invention and the effects of the present invention will be described.
As described above, the present inventor, after repeated trial and error, in the stage before deriving the present invention, the height of the internal terminal surface on which the semiconductor element is mounted and the internal terminal portion that is electrically connected to the semiconductor element. A semiconductor element wiring member that can eliminate the steps of etching the metal plate and forming an opening where only the external terminal portion is exposed in the manufacturing process of the semiconductor device. The inventors have conceived an invention of a wiring member for a semiconductor device and a method for manufacturing the same, which can manufacture a highly reliable resin-encapsulated semiconductor device by reducing the number of steps when manufacturing the semiconductor device.

本発明を導出する前段階において着想した発明
本発明を導出する以前に着想した発明にかかる半導体装置用配線部材は、図８７(b)に示すように、永久レジスト１５’の一方の側の面１５ａ’における所定部位に内部端子となる第１のめっき層１１が下面を永久レジスト１５’の一方の側の面１５ａ’に露出させた状態で形成され、第１のめっき層１１の上に該第１のめっき層と同一形状で配線部となるめっき層１２が形成され、更に配線部となるめっき層１２の上に配線部となるめっき層１２の領域内で部分的に外部端子となる第２のめっき層１３が上面を永久レジスト１５’の他方の側の面１５ｂ’から露出させた状態で形成され、内部端子と配線部と外部端子を構成し、側面形状が、略Ｌ字形状（又は略Ｔ字形状）となるように形成されている、めっき層の積層体を複数備えてなる。 Invention Invented in the Previous Stage of Deriving the Present Invention The wiring member for a semiconductor device according to the invention conceived before deriving the present invention has a surface on one side of the permanent resist 15 ′ as shown in FIG. 87 (b). A first plating layer 11 serving as an internal terminal is formed at a predetermined portion in 15a ′ with the lower surface exposed on the surface 15a ′ on one side of the permanent resist 15 ′, and the first plating layer 11 is formed on the first plating layer 11 A plating layer 12 having the same shape as that of the first plating layer and serving as a wiring portion is formed. Further, on the plating layer 12 serving as the wiring portion, a part of the plating layer 12 serving as the wiring portion is partially provided as an external terminal. 2 is formed in a state where the upper surface is exposed from the surface 15b ′ on the other side of the permanent resist 15 ′, and constitutes an internal terminal, a wiring portion, and an external terminal, and the side surface shape is substantially L-shaped ( Or a substantially T-shape), A composed of a plurality of laminated body of Tsu Ki layer.

図８に示す発明の半導体装置用配線部材のように、複数備わる、夫々のめっき層の積層体を、内部端子と外部端子を配線部で接続しためっき層の積層体で形成すれば、内部端子と外部端子夫々の実装ピッチを設計に応じて調整できる。
また、内部端子と外部端子を配線部で接続しためっき層の積層体の側面形状が、略Ｌ字形状又は略Ｔ字形状となるように構成すれば、永久レジストとの密着性が向上し、端子を形成するめっき被膜の永久レジストからの抜けを防止できる。
また、配線部となるめっき層１２の上に、配線部となるめっき層１２の領域内で部分的に外部端子となる第２のめっき層１３を形成する構成にすれば、外部端子となる第２のめっき層１３を小さく形成でき、外部端子として半導体装置の裏面に露出する第２のめっき層１３の脱落や抜けを防止できる。 As in the semiconductor device wiring member of the invention shown in FIG. 8, if a plurality of stacked layers of plating layers are formed of a stacked layer of plated layers in which internal terminals and external terminals are connected by wiring portions, internal terminals And the mounting pitch of each external terminal can be adjusted according to the design.
Further, if the side surface shape of the laminate of the plating layer in which the internal terminal and the external terminal are connected by the wiring portion is configured to be substantially L-shaped or substantially T-shaped, the adhesion with the permanent resist is improved, The plating film forming the terminal can be prevented from coming off from the permanent resist.
In addition, if the second plating layer 13 that partially serves as an external terminal is formed on the plating layer 12 that serves as the wiring part within the region of the plating layer 12 that serves as the wiring part, the second terminal serving as the external terminal is formed. The second plating layer 13 can be formed small, and the second plating layer 13 exposed on the back surface of the semiconductor device as an external terminal can be prevented from falling off or coming off.

また、従来の半導体装置用基板において半導体装置の製造過程で設ける樹脂を半導体装置用基板に永久レジストとして予め設けるとともに、永久レジストの開口部に、内部端子及び配線部とは厚みの異なる外部端子を予め設け、内部端子及び配線部を永久レジストで封止し、永久レジストの他方の側の面から外部端子のみを露出させておけば、従来の半導体装置用基板とは異なり半導体装置の製造過程で外部部材との接続面に開口部を有する絶縁層を設ける必要がなくなり、その分、半導体装置の製造時の工程数が減少し生産性が向上する。   In addition, a resin provided in the process of manufacturing a semiconductor device in a conventional semiconductor device substrate is provided in advance as a permanent resist on the semiconductor device substrate, and external terminals having different thicknesses from the internal terminals and wiring portions are provided in the openings of the permanent resist. Unlike the conventional semiconductor device substrate, in the process of manufacturing a semiconductor device, the internal terminals and wiring portions are sealed with a permanent resist in advance, and only the external terminals are exposed from the other side of the permanent resist. There is no need to provide an insulating layer having an opening on the connection surface with the external member, and accordingly, the number of steps in manufacturing the semiconductor device is reduced and productivity is improved.

この点について、詳述する。
本件発明者は、試行錯誤の末、半導体装置を製造する際に用いる半導体装置用基板における内部端子と外部端子の電気的な接続面を、従来の半導体装置用基板とは逆にすることを着想した。
即ち、従来の半導体装置用基板では、半導体装置を製造する際には、外部端子面は金属板側の面、内部端子面は金属板とは反対側の面を露出させた状態で用いるように構成されている。
これに対し、図８に示す発明の半導体装置用配線部材では、半導体装置を製造する際には、外部端子面は半導体装置用基板の製造時に用いる金属板とは反対側の面、内部端子面は半導体装置用基板の製造時に用いる金属板側の面を露出させた状態で用いる着想のもとに、内部端子及び配線部を構成するめっき層よりも外部端子を構成するめっき層を半導体装置用基板の製造時に用いる金属板から高くなるように構成する。 This point will be described in detail.
The present inventor has conceived that, after trial and error, the electrical connection surfaces of the internal terminals and the external terminals in the semiconductor device substrate used when manufacturing the semiconductor device are reversed from those of the conventional semiconductor device substrate. did.
That is, in the conventional semiconductor device substrate, when manufacturing a semiconductor device, the external terminal surface is used with the metal plate side surface exposed, and the internal terminal surface is used with the surface opposite to the metal plate exposed. It is configured.
On the other hand, in the semiconductor device wiring member of the invention shown in FIG. 8, when manufacturing the semiconductor device, the external terminal surface is the surface opposite to the metal plate used when manufacturing the semiconductor device substrate, the internal terminal surface. Is based on the idea of exposing the surface on the metal plate side used when manufacturing a substrate for a semiconductor device, and the plating layer constituting the external terminal is used for the semiconductor device rather than the plating layer constituting the internal terminal and the wiring part. It is configured to be higher than the metal plate used when manufacturing the substrate.

例えば、図８に示す発明の半導体装置用配線部材の製造時に用いる金属板をエッチングによる溶解等により除去すると、金属板除去後には、金属板を除去した側の内部端子となる第１のめっき層１１の面が金属板の表面に倣って段差のない（高低差１μｍ以下の）状態で露出することになる。この金属板は、リードフレーム等に使用される一般的な圧延材である。
ここで、従来の半導体装置用基板を用いた半導体装置と同様に、第１のめっき層１１上に半導体素子を搭載するが、第１のめっき層１１の面が段差のない状態で露出しているので、接続面は全体がフラットであるため、接続が安定する。
この場合、外部端子は金属板側とは反対側の面を露出させる必要がある。そこで、本件発明者は、金属板上における、内部端子、外部端子及び配線部となる部位にめっきを施した後、従来の半導体装置用基板とは異なり、更に、外部端子となる部位のみに、さらにめっきを積み増して施すことで、内部端子、配線部とは高低差のある外部端子を形成させ、更に第２のめっき層が形成されていない部位の上に第２のめっき層の上面を露出させた状態で永久レジストが形成され、金属板がエッチング除去された図８に示す発明の半導体装置用配線部材を想到するに至った。 For example, when the metal plate used for manufacturing the semiconductor device wiring member of the invention shown in FIG. 8 is removed by dissolution or the like by etching, the first plating layer that becomes the internal terminal on the side from which the metal plate is removed after the metal plate is removed. The surface 11 is exposed in a state without a step (altitude difference of 1 μm or less) following the surface of the metal plate. This metal plate is a general rolled material used for lead frames and the like.
Here, similarly to the semiconductor device using the conventional substrate for a semiconductor device, a semiconductor element is mounted on the first plating layer 11, but the surface of the first plating layer 11 is exposed without a step. As a result, the entire connection surface is flat, so that the connection is stable.
In this case, the external terminal needs to expose the surface opposite to the metal plate side. Therefore, the present inventor, on the metal plate, after plating on the portion to be the internal terminal, the external terminal and the wiring portion, unlike the conventional semiconductor device substrate, further, only to the portion to be the external terminal, Further, the plating is increased to form an external terminal having a height difference from the internal terminal and the wiring portion, and the upper surface of the second plating layer is exposed on a portion where the second plating layer is not formed. In this state, a permanent resist was formed, and the metal plate was etched away. Thus, the semiconductor device wiring member of the invention shown in FIG. 8 was conceived.

図８に示す発明の半導体装置用配線部材のように、外部端子と、内部端子及び配線部とに高低差を設け、永久レジストで内部端子及び配線部のみを封止し、外部端子のみを露出させた面を永久レジストの他方の側の面に設けるようにすれば、従来の半導体装置用基板とは異なり、半導体装置の製造工程において金属板のエッチング除去や外部部材との接続面に開口部を形成する加工の必要がなく、その分、工程数が減少し、生産性が向上する。   Like the wiring member for a semiconductor device of the invention shown in FIG. 8, there is a difference in height between the external terminal, the internal terminal and the wiring part, and only the internal terminal and the wiring part are sealed with a permanent resist, and only the external terminal is exposed. If the processed surface is provided on the other side surface of the permanent resist, unlike the conventional substrate for a semiconductor device, the metal plate is etched away and an opening is formed in the connection surface with an external member in the manufacturing process of the semiconductor device. There is no need for processing to form the film, and accordingly, the number of processes is reduced and the productivity is improved.

また、図８に示す発明の半導体装置用配線部材のように構成すれば、積層めっき被膜と永久レジストのみからなる構造となり、フリップチップ実装後に樹脂封止する際には、半導体装置用配線部材の永久レジスト及び露出しためっき被膜のみを封止樹脂で封止することになり、膨張係数の大きく異なる基材（金属板）の表面を樹脂封止することがないため、封止樹脂の硬化後の反りが軽減される。詳しくは、基材をなす金属板への樹脂封止に比べて、永久レジストへの樹脂封止は、永久レジストと封止樹脂とが、物理的な特性が同系統の材料同士であるため、封止樹脂硬化後の熱収縮や熱膨張が小さくなる。しかも、特許文献１，２に記載の半導体装置用基板のように、封止樹脂部形成後に基材を除去するようなことがない。その結果、封止樹脂の硬化後の反りが小さくなる。   Further, if it is configured like the wiring member for a semiconductor device of the invention shown in FIG. 8, it has a structure consisting of only a laminated plating film and a permanent resist. Only the permanent resist and the exposed plating film are sealed with the sealing resin, and the surface of the base material (metal plate) having a significantly different expansion coefficient is not sealed with the resin. Warpage is reduced. Specifically, compared to resin sealing to the metal plate that forms the base material, the resin sealing to the permanent resist is because the permanent resist and the sealing resin are materials of the same physical properties, Thermal shrinkage and thermal expansion after curing the sealing resin are reduced. Moreover, unlike the semiconductor device substrates described in Patent Documents 1 and 2, the base material is not removed after the sealing resin portion is formed. As a result, warpage after curing of the sealing resin is reduced.

また、図８に示す発明の半導体装置用配線部材によれば、半導体装置の製造工程において基材をなす金属板のエッチング除去や外部機器との接続面に開口部を形成するための加工（ソルダーレジストの塗布、露光、現像）の必要がないため、水分や薬液が浸入して半導体装置を劣化させる虞がない。   In addition, according to the wiring member for a semiconductor device of the invention shown in FIG. 8, the metal plate forming the base material is removed by etching in the manufacturing process of the semiconductor device and the processing for forming the opening on the connection surface with the external device (solder) Since there is no need for resist application, exposure, and development), there is no possibility of moisture or chemicals entering and degrading the semiconductor device.

本発明を導出する以前に着想した発明における課題
本件発明者が、更に検討・考察を重ねたところ、図８に示す発明の半導体装置用配線部材には、量産化の要請に応えるために、次のような課題があることが判明した。
即ち、この種の半導体装置の製造に使用される半導体装置用配線部材は、多数の半導体装置を一度に得るために、内部端子部と外部端子部と配線部を有する、めっき層の積層体を複数備えてなる個々の半導体装置用配線部材がマトリックス状に配列された多列型半導体装置用配線部材として形成される。
しかるに、図８に示す半導体装置用配線部材は、内部端子、配線部及び外部端子がめっき層１１，１２，１３で形成され、内部端子、配線部及び外部端子が永久レジスト１５’によって固定され、全体が薄板状に形成された構成となっている。このような薄板状の半導体装置用配線部材を、更に、マトリックス状に多列化した態様に形成した場合、永久レジストの厚さに対し、半導体装置用配線部材の集合体の面積が膨大なものとなるため、半導体装置用配線部材の集合体の面全体に撓みが生じ易くなり、半導体装置の製造に悪影響を及ぼす虞が懸念される。例えば、永久レジストに積層めっき被膜が埋まった状態でフリップチップ実装工程を行うために、多列型半導体装置用基板の集合体をなすシートを搬送する場合、半導体素子搭載用シートとしては強度が弱いため、搬送により変形する虞がある。 Problems in Invention Conceived Before Deriving the Present Invention The present inventor has further studied and considered. In order to meet the demand for mass production, the wiring member for a semiconductor device of the invention shown in FIG. It became clear that there was a problem like.
That is, a wiring member for a semiconductor device used for manufacturing this type of semiconductor device is a laminate of plating layers having an internal terminal portion, an external terminal portion, and a wiring portion in order to obtain a large number of semiconductor devices at once. A plurality of individual semiconductor device wiring members are formed as a multi-row type semiconductor device wiring member arranged in a matrix.
However, in the wiring member for a semiconductor device shown in FIG. 8, the internal terminal, the wiring portion, and the external terminal are formed of the plating layers 11, 12, and 13, and the internal terminal, the wiring portion, and the external terminal are fixed by the permanent resist 15 ′. The whole is formed in a thin plate shape. When such a thin plate-like wiring member for a semiconductor device is formed in a multi-row form in a matrix shape, the area of the assembly of the wiring members for the semiconductor device is enormous with respect to the thickness of the permanent resist. Therefore, the entire surface of the assembly of wiring members for a semiconductor device is likely to be bent, and there is a concern that the semiconductor device may be adversely affected. For example, in order to carry out a flip chip mounting process in a state where a multilayer plating film is embedded in a permanent resist, when conveying a sheet forming an assembly of substrates for a multi-row type semiconductor device, the strength as a semiconductor element mounting sheet is weak. Therefore, there is a risk of deformation due to conveyance.

本発明の作用効果
そこで、本件発明者は、図８に示す発明における上記の課題を鑑み、更なる検討・考察、試行錯誤を重ねた結果、図８に示す発明による上述の効果を維持し、且つ、上記課題を解決する本発明を着想した。 Action and effect Hence, the present inventors of the present invention, in view of the above problems in the invention shown in FIG. 8, further study and discussion As a result of trial and error, to maintain the above-described effects according to the invention shown in FIG. 8, The present invention has also been conceived to solve the above problems.

本発明の多列型半導体装置用配線部材は、図８に示す発明の半導体装置用配線部材がマトリックス状に配列された多列型半導体装置用配線部材であって、永久レジストの一方の側の面における、半導体装置用配線部材の集合体の外周領域に金属枠部が形成されている。   The multi-row semiconductor device wiring member of the present invention is a multi-row semiconductor device wiring member in which the semiconductor device wiring members of the invention shown in FIG. A metal frame portion is formed on the outer peripheral region of the assembly of wiring members for semiconductor devices on the surface.

本発明の多列型半導体装置用配線部材のように、永久レジストの一方の側の面における、半導体装置用配線部材の集合体の外周領域に金属枠部を形成すれば、多列型半導体装置用配線部材が、金属枠部で補強され、搬送しても変形し難い強度を確保できる。
なお、金属枠部を形成する対象となる半導体装置用配線部材の集合体は、多列型半導体装置用配線部材の全領域（１シート）としてもよいし、多列型半導体装置用配線部材の全領域を複数ブロックに分けたときの、夫々のブロックとしてもよい。
例えば、１シート内に半導体装置用配線部材の集合体が複数ブロック（図２の例では半導体装置用配線部材１０の集合体が４ブロック）存在する多列型半導体装置用配線部材の場合、金属枠部（図２の例では金属枠部１６）は、半導体装置用配線部材の集合体の全てのブロックを合わせて１つの半導体装置用配線部材の集合体とみなして、その外周領域に形成することができる（図２(a)、図２(b)参照）。あるいは、金属枠部は、個々のブロックをなす半導体装置用配線部材の集合体の外周領域に形成することもできる（図２(c)、図２(d)参照）。あるいは、金属枠部は、半導体装置用配線部材の集合体の全てのブロックのうちの一部をなす複数のブロック（例えば、図２に示す例における４つのブロックの半導体装置用配線部材１０の集合体のうち、２つの半導体装置用配線部材１０の集合体）を合わせて１つの半導体装置用配線部材の集合体とみなして、夫々の半導体装置用配線部材の集合体の外周領域に形成することもできる。 As in the multi-row semiconductor device wiring member of the present invention, if a metal frame is formed in the outer peripheral region of the assembly of the semiconductor device wiring members on one side of the permanent resist, the multi-row semiconductor device The wiring member is reinforced by the metal frame portion, and it is possible to secure a strength that is difficult to be deformed even when transported.
Note that the assembly of the semiconductor device wiring members for which the metal frame portion is to be formed may be the entire region (one sheet) of the multi-row semiconductor device wiring member, or the multi-row semiconductor device wiring member. Each block may be obtained when the entire area is divided into a plurality of blocks.
For example, in the case of a multi-row semiconductor device wiring member in which a plurality of blocks of semiconductor device wiring members are present in one sheet (four blocks of semiconductor device wiring members 10 in the example of FIG. 2), metal The frame portion (the metal frame portion 16 in the example of FIG. 2) is formed in the outer peripheral region by considering all the blocks of the semiconductor device wiring member assembly as one semiconductor device wiring member assembly. (See FIGS. 2 (a) and 2 (b)). Alternatively, the metal frame portion can be formed in the outer peripheral area of the assembly of semiconductor device wiring members forming individual blocks (see FIGS. 2C and 2D). Alternatively, the metal frame portion includes a plurality of blocks (for example, a set of four blocks of semiconductor device wiring members 10 in the example shown in FIG. 2) forming a part of all blocks of the assembly of semiconductor device wiring members. The assembly of two semiconductor device wiring members 10) is regarded as an assembly of one semiconductor device wiring member and formed in the outer peripheral region of each semiconductor device wiring member assembly. You can also.

また、本発明の多列型半導体装置用配線部材は、配線部となるめっき層が、第１のめっき層の上面及び側面に接続した状態で第１のめっき層を取り囲み、第１のめっき層の側方に位置する配線部となるめっき層の下面が永久レジストの一方の側の面に露出するように形成されている。
このようにすれば、内部端子となる第１のめっき層の領域を最小限に抑えることができ、内部端子用の貴金属めっき層の使用量を抑えてコストを最小限に低減できる。
更に、半導体装置用配線部材に半導体素子をフリップチップ実装して半導体装置を組み立てる場合において、貴金属めっき層である第１のめっき層では半田の濡れ広がりが容易であるが、その周囲の例えばＮｉによる配線部となるめっき層では実装時の熱等によるＮｉ表面の酸化等によって半田の濡れ広がりが抑制されるため、内部端子間距離の微細化に伴う半田ブリード、半田ブリッジを防止することができる。その結果、半導体装置の微細化をより促進させることができる。 The wiring member for a multi-row type semiconductor device according to the present invention surrounds the first plating layer in a state in which the plating layer serving as the wiring portion is connected to the upper surface and the side surface of the first plating layer. The lower surface of the plating layer serving as the wiring portion located on the side of the surface is formed so as to be exposed on the surface on one side of the permanent resist.
In this way, the area of the first plating layer serving as the internal terminal can be minimized, and the amount of the precious metal plating layer for the internal terminal can be suppressed to reduce the cost to the minimum.
Furthermore, in the case of assembling a semiconductor device by flip-chip mounting a semiconductor element on a wiring member for a semiconductor device, the first plating layer which is a noble metal plating layer is easy to wet and spread the solder. In the plated layer serving as the wiring portion, solder wetting and spreading are suppressed by oxidation of the Ni surface due to heat or the like at the time of mounting, so that it is possible to prevent solder bleeding and solder bridging due to miniaturization of the distance between the internal terminals. As a result, miniaturization of the semiconductor device can be further promoted.

なお、本発明の多列型半導体装置用配線部材においては、好ましくは、第１のめっき層の上に形成されている配線部となるめっき層の上面は、粗化面である。
このようにすれば、配線部となるめっき層における、第２のめっき層に覆われていない部位の永久レジストとの密着性が向上する。そして、第１のめっき層と配線部となるめっき層の厚さが例えば５μｍ以下の薄いめっき層であっても、永久レジストからの剥がれを防止できる。 In the wiring member for a multi-row type semiconductor device of the present invention, preferably, the upper surface of the plating layer serving as the wiring portion formed on the first plating layer is a roughened surface.
In this way, the adhesiveness with the permanent resist of the site | part which is not covered with the 2nd plating layer in the plating layer used as a wiring part improves. And even if it is a thin plating layer whose thickness of the 1st plating layer and the plating layer used as a wiring part is 5 micrometers or less, for example, peeling from a permanent resist can be prevented.

また、本発明の多列型半導体装置用配線部材においては、好ましくは、第１のめっき層が露出した永久レジストの一方の側の面は、粗面である。
このようにすれば、半導体素子を搭載時に用いる接着剤層や、半導体素子搭載後に封止する封止樹脂との密着性が向上する。 In the wiring member for a multi-row semiconductor device of the present invention, the surface on one side of the permanent resist from which the first plating layer is exposed is preferably a rough surface.
In this way, the adhesion with the adhesive layer used when mounting the semiconductor element and the sealing resin that is sealed after mounting the semiconductor element is improved.

その他の構成及び作用効果は、図８に示す発明の半導体装置用配線部材と略同じである。   Other configurations and operational effects are substantially the same as those of the semiconductor device wiring member of the invention shown in FIG.

なお、本発明の多列型半導体装置用配線部材は、金属板の他方の側の面にパターンＡの開口部を有する第１のレジストマスクを形成するとともに、金属板の一方の側の面全体を覆う第１のレジストマスクを形成する工程と、パターンＡの開口部に内部端子となる第１のめっき層を形成する工程と、金属板の両面に形成された第１のレジストマスクを除去する工程と、金属板の他方の側の面に、第１のめっき層を取り囲む広さのパターンＢの開口部を有する第２のレジストマスクを形成するとともに、金属板の一方の側の面に、半導体装置用配線部材の集合体の外周領域に開口部を有する第２のレジストマスクを形成する工程と、パターンＢの開口部に配線部となるめっき層を、第１のめっき層を取り囲むように形成するとともに、外周領域の開口部に金属枠部形成用レジストとなるめっき層を形成する工程と、金属板の両面に形成された第２のレジストマスクを除去する工程と、金属板の他方の側の面に配線部となるめっき層の領域内において一部が露出するパターンＣの開口部を有する永久レジストからなる第３のレジストマスクを形成するとともに、金属板の一方の側の面全体を覆う感光レジストからなる第３のレジストマスクを形成する工程と、パターンＣの開口部に外部端子となる第２のめっき層を形成する工程と、金属板の一方の側の面に形成された第３のレジストマスクを除去する工程と、金属板における、半導体装置用配線部材の集合体の外周領域に形成した金属枠部形成用レジストとなるめっき層で覆われていない部位の金属をエッチングにより除去する工程と、を有することによって製造できる。   The wiring member for a multi-row semiconductor device of the present invention forms the first resist mask having the opening of the pattern A on the other side surface of the metal plate and the entire surface on one side of the metal plate. Forming a first resist mask that covers the substrate, forming a first plating layer serving as an internal terminal in the opening of the pattern A, and removing the first resist mask formed on both surfaces of the metal plate Forming a second resist mask having a pattern B opening that surrounds the first plating layer on the surface on the other side of the metal plate, and on the surface on one side of the metal plate, A step of forming a second resist mask having an opening in the outer peripheral region of the assembly of wiring members for a semiconductor device, and a plating layer serving as a wiring in the opening of pattern B so as to surround the first plating layer Of the outer peripheral area A step of forming a plating layer serving as a metal frame forming resist at the mouth, a step of removing the second resist mask formed on both sides of the metal plate, and a wiring portion on the other side of the metal plate Forming a third resist mask made of a permanent resist having an opening portion of a pattern C partially exposed in the region of the plating layer to be formed, and forming a third resist made of a photosensitive resist covering the entire surface on one side of the metal plate; Forming a resist mask, forming a second plating layer serving as an external terminal in the opening of the pattern C, and removing the third resist mask formed on one surface of the metal plate A step of removing, by etching, a portion of the metal plate that is not covered with a plating layer to be a metal frame forming resist formed in the outer peripheral region of the assembly of wiring members for a semiconductor device; It can be prepared by a.

なお、好ましくは、配線部となるめっき層の形成後、且つ、第３のレジストマスクの形成前に、配線部となるめっき層の上面に、粗化処理を施すか、あるいは配線部となるめっき層が粗化めっき層として形成されるようにする。
このようにすれば、配線部となるめっき層における、第２のめっき層に覆われていない部位の永久レジストとの密着性が向上する。そして、第１のめっき層と配線部となるめっき層の厚さが例えば５μｍ以下の薄いめっき層であっても、永久レジストからの剥がれを防止できる。 Preferably, after the formation of the plating layer that becomes the wiring portion and before the formation of the third resist mask, the upper surface of the plating layer that becomes the wiring portion is subjected to a roughening treatment or plating that becomes the wiring portion. The layer is formed as a roughened plating layer.
In this way, the adhesiveness with the permanent resist of the site | part which is not covered with the 2nd plating layer in the plating layer used as a wiring part improves. And even if it is a thin plating layer whose thickness of the 1st plating layer and the plating layer used as a wiring part is 5 micrometers or less, for example, peeling from a permanent resist can be prevented.

また、好ましくは、金属板の両面に形成された第２のレジストマスクを除去した後、金属板に形成された配線部となるめっき層をマスクとして金属板表面を粗化処理する工程を含む。
このようにすれば、金属板表面の永久レジストとの密着性が向上し、金属枠部の半導体装置用配線部材の集合体の外周領域との密着性が向上する。また、金属枠部以外の金属板を除去したときに、永久レジストの一方の側の面が粗面となって露出するため、半導体素子を搭載時に用いる接着剤層や、半導体素子搭載後に封止する封止樹脂との密着性が向上する。 Preferably, the method further includes a step of roughening the surface of the metal plate using the plating layer serving as a wiring portion formed on the metal plate as a mask after removing the second resist mask formed on both surfaces of the metal plate.
If it does in this way, adhesiveness with the permanent resist of the metal plate surface will improve, and adhesiveness with the outer peripheral area | region of the aggregate | assembly of the wiring member for semiconductor devices of a metal frame part will improve. Also, when the metal plate other than the metal frame is removed, the surface on one side of the permanent resist is exposed as a rough surface, so that the adhesive layer used when mounting the semiconductor element or sealing after mounting the semiconductor element Adhesion with the sealing resin to be improved.

従って、本発明によれば、半導体装置を薄型化、小型化でき、端子部を構成するめっき被膜と樹脂との密着性を向上させ、半導体素子を搭載する内部端子面および半導体素子と電気的接続をする内部端子部の高さを均一にでき、更に半導体装置の製造工程において金属板のエッチング除去や外部端子部のみが露出する開口部を形成する工程を省略でき、封止樹脂硬化後の樹脂の反りを軽減でき、半導体装置製造時の工程数を削減して、信頼性の高い樹脂封止型半導体装置を歩留まり良く量産可能な多列型半導体装置用配線部材及びその製造方法が得られる。   Therefore, according to the present invention, the semiconductor device can be reduced in thickness and size, the adhesion between the plating film constituting the terminal portion and the resin is improved, and the internal terminal surface on which the semiconductor element is mounted and the electrical connection with the semiconductor element The internal terminal portion can be made uniform in height, and the step of etching the metal plate and forming the opening where only the external terminal portion is exposed can be omitted in the manufacturing process of the semiconductor device. Thus, a wiring member for a multi-row type semiconductor device and a method for manufacturing the same can be obtained that can reduce the number of steps in manufacturing the semiconductor device and can mass-produce a highly reliable resin-encapsulated semiconductor device with a high yield.

以下、本発明の実施形態について、図面を用いて説明する。
第１実施形態
図１は本発明の第１実施形態にかかる多列型半導体装置用配線部材の構成を示す図で、(a)は外部端子側からみた平面図、(b)は(a)の部分拡大図、(c)は(b)のＡ−Ａ断面図、(d)は(a)の多列型半導体装置用配線部材に備わる個々の半導体装置用配線部材における内部端子、配線部及び外部端子を構成するめっき層の積層体の構成の一例を示す平面図、(e)は(d)の断面図である。図２は第１実施形態にかかる多列型半導体装置用配線部材における、半導体装置用配線部材の集合体の外周領域に形成する金属枠部の配置構成を示す説明図で、(a)はその一例を示す平面図、(b)は(a)の断面図、(c)は他の例を示す平面図、(d)は(c)の断面図である。図３は図１に示す多列型半導体装置用配線部材の製造工程を示す説明図である。図４は図３に示す製造工程を経て製造された第１実施形態の多列型半導体装置用配線部材を用いた樹脂封止型半導体装置の製造工程の一例を示す説明図である。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
First Embodiment FIG. 1 is a diagram showing a configuration of a wiring member for a multi-row semiconductor device according to a first embodiment of the present invention. (A) is a plan view seen from the external terminal side, and (b) is (a). (C) is an AA cross-sectional view of (b), (d) is an internal terminal and wiring portion in each wiring member for a semiconductor device provided in the wiring member for a multi-row semiconductor device of (a) FIG. 5 is a plan view showing an example of the configuration of a laminate of plating layers constituting the external terminal, and (e) is a cross-sectional view of (d). FIG. 2 is an explanatory view showing an arrangement configuration of metal frame portions formed in the outer peripheral region of the assembly of wiring members for semiconductor devices in the wiring member for multi-row type semiconductor devices according to the first embodiment. FIG. 4B is a plan view showing an example, FIG. 4B is a cross-sectional view of FIG. 4A, FIG. 4C is a plan view showing another example, and FIG. FIG. 3 is an explanatory view showing a manufacturing process of the multi-row semiconductor device wiring member shown in FIG. FIG. 4 is an explanatory view showing an example of a manufacturing process of a resin-encapsulated semiconductor device using the multi-row semiconductor device wiring member of the first embodiment manufactured through the manufacturing process shown in FIG.

第１実施形態の多列型半導体装置用配線部材は、図１(a)に示すように、マトリックス状に配列された半導体装置用配線部材１０の集合体と、金属枠部１６を有している。
個々の半導体装置用配線部材１０は、図１(c)に示すように、永久レジスト１５’と、内部端子となる第１のめっき層１１と、配線部材となるめっき層１２と、外部端子となるめっき層１３と、を有してなる、めっき層の積層体を複数備えて構成されている。
内部端子となる第１のめっき層１１は、永久レジスト１５’の一方の側の面１５ａ’における所定部位に、下面を永久レジスト１５’の一方の側の面１５ａ’と面一に露出させた状態で形成されている。なお、第１のめっき層１１は、下面を永久レジスト１５’の一方の側の面１５ａ’に露出させた状態で形成されていれば、第１のめっき層１１の下面が永久レジスト１５’の一方の側の面１５ａ’と面一ではない状態に形成されていてもよい。
配線部となるめっき層１２は、第１のめっき層１１の上面及び側面に接続した状態で第１のめっき層１１を取り囲み、第１のめっき層１１の側方に位置する配線部となるめっき層１２の下面が永久レジスト１５’の一方の側の面１５ａ’と面一に露出させた状態で形成されている。なお、第１のめっき層１１の側方に位置する配線部となるめっき層１２は、下面を永久レジスト１５’の一方の側の面１５ａ’に露出させた状態で形成されていれば、第１のめっき層１２の当該下面が永久レジスト１５’の一方の側の面１５ａ’と面一ではない状態に形成されていてもよい。
また、配線部となるめっき層１２の上面は、粗化面となっている。また、第１のめっき層１１が露出した永久レジスト１５’の一方の側の面は、粗面となっている。
外部端子となる第２のめっき層１３は、配線部となるめっき層１２の上に、配線部となるめっき層１２の領域内で部分的に（例えば、配線部となるめっき層１２の外縁から０．０３ｍｍ以上内側）、上面を永久レジスト１５’の他方の側の面１５ｂ’から露出させた状態で形成されている。
なお、第１のめっき層１１は、例えば、順に積層された、Ａｕめっき層と、Ｐｄめっき層と、Ｎｉめっき層とで構成されている。
配線部となるめっき層１２は、例えば、Ｎｉめっき層又はＣｕめっき層で構成されている。
第２のめっき層１３は、例えば、順に積層された、Ｎｉめっき層と、Ｐｄめっき層と、Ａｕめっき層とで構成されている。
第２のめっき層１３の表面（即ち、Ａｕめっき層の表面）の永久レジスト１５’の一方の側の面１５ａ’からの高さＨ２は、配線部となるめっき層１２の表面の永久レジスト１５’の一方の側の面１５ａ’からの高さＨ１に比べて高くなっている。
そして、内部端子となるめっき層１１と配線部となるめっき層１２と外部端子となるめっき層１３の積層体は、側面形状が略Ｌ字形状（又は略Ｔ字形状）に形成されている。 The multi-row type semiconductor device wiring member according to the first embodiment includes an assembly of semiconductor device wiring members 10 arranged in a matrix and a metal frame 16 as shown in FIG. Yes.
As shown in FIG. 1C, each wiring member 10 for a semiconductor device includes a permanent resist 15 ′, a first plating layer 11 serving as an internal terminal, a plating layer 12 serving as a wiring member, and an external terminal. And a plurality of laminates of plating layers, each having a plating layer 13.
The first plating layer 11 serving as an internal terminal is exposed at a predetermined portion of the surface 15a ′ on one side of the permanent resist 15 ′ and the lower surface thereof is flush with the surface 15a ′ on one side of the permanent resist 15 ′. It is formed in a state. If the first plating layer 11 is formed with the lower surface exposed on the surface 15a ′ on one side of the permanent resist 15 ′, the lower surface of the first plating layer 11 is made of the permanent resist 15 ′. It may be formed so as not to be flush with the surface 15a ′ on one side.
The plating layer 12 to be the wiring portion surrounds the first plating layer 11 in a state of being connected to the upper surface and the side surface of the first plating layer 11, and is the plating to be the wiring portion located on the side of the first plating layer 11. The lower surface of the layer 12 is formed so as to be flush with the surface 15a ′ on one side of the permanent resist 15 ′. In addition, if the plating layer 12 which becomes the wiring portion located on the side of the first plating layer 11 is formed in a state where the lower surface is exposed to the surface 15a ′ on one side of the permanent resist 15 ′, the first The lower surface of one plating layer 12 may be formed so as not to be flush with the surface 15a ′ on one side of the permanent resist 15 ′.
Moreover, the upper surface of the plating layer 12 used as a wiring part is a roughened surface. Further, the surface on one side of the permanent resist 15 ′ from which the first plating layer 11 is exposed is a rough surface.
The second plating layer 13 serving as the external terminal is partially formed on the plating layer 12 serving as the wiring part within the region of the plating layer 12 serving as the wiring part (for example, from the outer edge of the plating layer 12 serving as the wiring part). 0.03 mm or more inside) and the upper surface is exposed from the surface 15b 'on the other side of the permanent resist 15'.
In addition, the 1st plating layer 11 is comprised by the Au plating layer, Pd plating layer, and Ni plating layer which were laminated | stacked in order, for example.
The plating layer 12 serving as the wiring portion is constituted by, for example, a Ni plating layer or a Cu plating layer.
The second plating layer 13 is composed of, for example, a Ni plating layer, a Pd plating layer, and an Au plating layer that are sequentially stacked.
The height H2 of the surface of the second plating layer 13 (that is, the surface of the Au plating layer) from the surface 15a 'on one side of the permanent resist 15' is the permanent resist 15 on the surface of the plating layer 12 serving as the wiring portion. It is higher than the height H1 from the surface 15a on one side of '.
And the laminated body of the plating layer 11 used as an internal terminal, the plating layer 12 used as a wiring part, and the plating layer 13 used as an external terminal is formed in a substantially L shape (or a substantially T shape).

金属枠部１６は、半導体装置用配線部材１０の集合体の外周領域の永久レジスト１５’の一方の側の面１５ａ’側に密着した状態で形成されている。
なお、本実施形態の多列型半導体装置用配線部材が、１シート内に半導体装置用配線部材１０の集合体が複数ブロック（図２の例では４ブロック）存在する多列型半導体装置用配線部材である場合、金属枠部１６は、半導体装置用配線部材１０の集合体の全てのブロックを合わせて１つの半導体装置用配線部材の集合体とみなして、その外周領域に形成することができる（図２(a)、図２(b)参照）。あるいは、金属枠部１６は、個々のブロックをなす半導体装置用配線部材の集合体１０の外周領域に形成することもできる（図２(c)、図２(d)参照）。あるいは、金属枠部１６は、半導体装置用配線部材１０の集合体の全てのブロックのうちの一部をなす複数のブロック（例えば、図２に示す例における４つのブロックの半導体装置用配線部材１０の集合体のうち、２つの半導体装置用配線部材１０の集合体）を合わせて１つの半導体装置用配線部材の集合体とみなして、夫々の半導体装置用配線部材の集合体の外周領域に形成することもできる。 The metal frame portion 16 is formed in close contact with the surface 15 a ′ side on one side of the permanent resist 15 ′ in the outer peripheral region of the assembly of the semiconductor device wiring members 10.
Note that the multi-row semiconductor device wiring member according to the present embodiment is a multi-row semiconductor device wiring in which a plurality of blocks (four blocks in the example of FIG. 2) of the semiconductor device wiring members 10 exist in one sheet. When it is a member, the metal frame portion 16 can be formed in the outer peripheral region of all the blocks of the assembly of the semiconductor device wiring members 10 as a single assembly of the semiconductor device wiring members. (See FIG. 2 (a) and FIG. 2 (b)). Alternatively, the metal frame portion 16 can be formed in the outer peripheral region of the assembly 10 of semiconductor device wiring members forming individual blocks (see FIGS. 2C and 2D). Alternatively, the metal frame portion 16 includes a plurality of blocks (for example, four blocks of the semiconductor device wiring member 10 in the example shown in FIG. 2) that form a part of all the blocks of the assembly of the semiconductor device wiring members 10. The assembly of two semiconductor device wiring members 10) is regarded as an assembly of one semiconductor device wiring member and formed in the outer peripheral region of each semiconductor device wiring member assembly. You can also

このように構成される第１実施形態の多列型半導体装置用配線部材は、例えば、次のようにして製造できる。なお、製造の各工程において実施される、薬液洗浄や水洗浄等を含む前処理・後処理等は、便宜上説明を省略する。また、図３では、便宜上、一つの半導体装置用配線部材の両側に金属枠部が形成されるように示してある。
まず、図３(a)に示す基板となる金属板１の両面に第１のレジストマスク用のドライフィルムレジストＲをラミネートする（図３(b)参照）。
次に、表面側のドライフィルムレジストＲに対しては、所定位置に、内部端子、配線部及び外部端子の基部を形成するパターンのうちの第１のめっき層１１に相当する部位のみを開口させたパターン（ここではパターンＡとする）が形成されたガラスマスクを用いて、表面側を露光・現像するとともに、裏面側のドライフィルムレジストＲに対しては、全面を照射するガラスマスクを用いて裏面側を露光・現像する。そして、図３(c)に示すように、表面にはパターンＡの第１のレジストマスクを形成し、裏面には全面を覆う第１のレジストマスクを形成する。なお、露光・現像は従来公知の方法により行う。例えば、ガラスマスクで覆った状態で紫外線を照射し、ガラスマスクを通過した紫外線が照射されたドライフィルムレジストの部位の現像液に対する溶解性を低下させて、それ以外の部分を除去することで、レジストマスクを形成する。なお、ここでは、レジストとしてネガ型のドライフィルムレジストを用いたが、レジストマスクの形成には、ネガ型の液状レジストを用いてもよい。さらには、ポジ型のドライフィルムレジスト又は液状レジストを用いて、ガラスマスクを通過した紫外線が照射されたレジストの部分の現像液に対する溶解性を増大させて、その部分を除去することでレジストマスクを形成するようにしてもよい。
次に、第１のレジストマスクから露出している金属板の部位に、第１のめっき層１１として、例えば、Ａｕめっき層、Ｐｄめっき層の順で夫々所定の厚さ（例えば、Ａｕめっき層０．００３μｍ、Ｐｄめっき層０．０３μｍ）となるように、Ａｕめっき、Ｐｄめっきを夫々施す。図３(d)はこのときの状態を示している。
次に、両面の第１のレジストマスクを除去する（図３(e)参照）。そして、除去した両面にドライフィルムレジストＲ’をラミネートする（図３(f)参照）。
次に、表面側のドライフィルムレジストＲ’に対し、内部端子、配線部及び外部端子の基部を形成するパターンであって、第１のめっき層１１を取り囲む広さを有し、第２のめっき層に対応する部位を開口させたパターン（ここではパターンＢとする）が形成されたガラスマスクを用いて、表面側を露光・現像し、パターンＢの第２のレジストマスクを形成するとともに、裏面側のドライフィルムレジストＲ’に対し、半導体装置用配線部材の集合体の外周領域に金属枠部形成用レジストを形成するパターンが形成されたガラスマスクを用いて裏面側を露光・現像し、半導体装置用配線部材の集合体の外周領域に開口部を有する第２のレジストマスクを形成する（図３(g)参照）。
次に、Ｐｄめっき層の上に配線部となるめっき層１２として、例えば、Ｎｉめっき層（又はＣｕめっき層）が第１のめっき層を取り囲むように、Ｎｉめっき（又はＣｕめっき）を、例えば４μｍ程度施す。また、好ましくは、配線部となるＮｉめっき層（又はＣｕめっき層）に対して、粗化処理を施す。図３(h)はこのときの状態を示している。
なお、第１のめっき層１１及び配線部となるめっき層１２とで積層するめっき層の総厚は、５μｍ以下に抑える。５μｍを超えためっき厚に形成すると、後述する第２のめっき層を形成するための第３のレジストマスクを、第１のめっき層１１及び配線部となるめっき層１２を覆うように形成する際に、金属板から突出し過ぎているために、第３のレジストマスクの内部に空気が入り込み易くなるので好ましくない。
また、このとき、金属板の裏側の面における半導体装置用配線部材の集合体の外周領域の開口部にも、金属枠部形成用レジストとなるめっき層として、配線部となるめっき層１２と同様の金属層からなる、めっき層１９を形成する。
また、配線部となるめっき層１２として、Ｎｉめっき層を形成する場合におけるＮｉめっき層に対する粗化処理は、Ｎｉめっき層の表面に対してエッチングを施すことによって行う。また、配線部となるめっき層１２として、Ｃｕめっき層を形成する場合におけるＣｕめっき層に対する粗化処理は、Ｃｕめっき層の表面に対して陽極酸化処理又はエッチングを施すことによって行う。
また、第１のめっき層１１における半導体素子搭載面側（即ち、最も金属板に近い側）のめっき層を構成する金属は、Ｎｉ、Ｐｄ、Ａｕ、Ａｇ、Ｓｎ、Ｃｕ等から、フリップチップ接続に必要な種類を適宜選択できる。 The multi-row semiconductor device wiring member of the first embodiment configured as described above can be manufactured, for example, as follows. Note that description of pre-processing and post-processing including chemical solution cleaning and water cleaning performed in each manufacturing process is omitted for the sake of convenience. In FIG. 3, for convenience, the metal frame portions are formed on both sides of one semiconductor device wiring member.
First, a dry film resist R for a first resist mask is laminated on both surfaces of a metal plate 1 to be a substrate shown in FIG. 3A (see FIG. 3B).
Next, with respect to the dry film resist R on the front side, only a portion corresponding to the first plating layer 11 in the pattern forming the base portion of the internal terminal, the wiring portion, and the external terminal is opened at a predetermined position. Using a glass mask on which a pattern (here referred to as pattern A) is formed, the front side is exposed and developed, and for the dry film resist R on the back side, a glass mask that irradiates the entire surface is used. Expose and develop the back side. Then, as shown in FIG. 3C, a first resist mask of pattern A is formed on the front surface, and a first resist mask covering the entire surface is formed on the back surface. Exposure and development are performed by a conventionally known method. For example, by irradiating ultraviolet rays in a state covered with a glass mask, reducing the solubility of the dry film resist portion irradiated with the ultraviolet rays that passed through the glass mask with respect to the developer, and removing other portions, A resist mask is formed. Although a negative dry film resist is used here as a resist, a negative liquid resist may be used for forming a resist mask. Furthermore, by using a positive dry film resist or a liquid resist, the solubility of the resist portion irradiated with ultraviolet rays that has passed through the glass mask is increased in the developing solution, and the resist mask is removed by removing the portion. You may make it form.
Next, at a portion of the metal plate exposed from the first resist mask, as the first plating layer 11, for example, an Au plating layer and a Pd plating layer are respectively predetermined thicknesses (for example, an Au plating layer). 0.003 μm, Pd plating layer 0.03 μm), Au plating and Pd plating are performed respectively. FIG. 3D shows the state at this time.
Next, the first resist masks on both sides are removed (see FIG. 3E). Then, a dry film resist R ′ is laminated on the removed both surfaces (see FIG. 3 (f)).
Next, it is a pattern for forming a base portion of the internal terminal, the wiring portion, and the external terminal with respect to the dry film resist R ′ on the surface side, and has a size surrounding the first plating layer 11, and the second plating. Using a glass mask on which a pattern corresponding to the layer is opened (here, pattern B) is formed, the front side is exposed and developed to form a second resist mask of pattern B, and the back side The back side of the dry film resist R ′ on the side is exposed and developed using a glass mask in which a pattern for forming a metal frame forming resist is formed in the outer peripheral region of the assembly of wiring members for a semiconductor device. A second resist mask having an opening in the outer peripheral region of the assembly of the apparatus wiring members is formed (see FIG. 3G).
Next, as the plating layer 12 to be a wiring portion on the Pd plating layer, for example, Ni plating (or Cu plating) is performed so that the Ni plating layer (or Cu plating layer) surrounds the first plating layer, for example. Apply about 4 μm. Preferably, a roughening process is performed on the Ni plating layer (or the Cu plating layer) serving as the wiring portion. FIG. 3 (h) shows the state at this time.
In addition, the total thickness of the plating layer laminated | stacked with the plating layer 12 used as the 1st plating layer 11 and a wiring part is suppressed to 5 micrometers or less. When a plating thickness exceeding 5 μm is formed, a third resist mask for forming a second plating layer to be described later is formed so as to cover the first plating layer 11 and the plating layer 12 serving as the wiring portion. Furthermore, since it protrudes too much from the metal plate, it is not preferable because air easily enters the inside of the third resist mask.
At this time, the plating layer serving as the metal frame portion forming resist is also formed in the opening in the outer peripheral region of the assembly of the wiring members for semiconductor devices on the back surface of the metal plate, similar to the plating layer 12 serving as the wiring portion. A plating layer 19 made of the metal layer is formed.
Moreover, the roughening process with respect to Ni plating layer in the case of forming Ni plating layer as the plating layer 12 used as a wiring part is performed by etching with respect to the surface of Ni plating layer. Moreover, the roughening process with respect to the Cu plating layer in the case of forming Cu plating layer as the plating layer 12 used as a wiring part is performed by performing an anodizing process or an etching with respect to the surface of a Cu plating layer.
Further, the metal constituting the plating layer on the semiconductor element mounting surface side (that is, the side closest to the metal plate) in the first plating layer 11 is made of Ni, Pd, Au, Ag, Sn, Cu, etc., and is flip-chip connected. The type necessary for the can be selected as appropriate.

次に、両面の第２のレジストマスクを除去する（図３(i)参照）。そして、金属板の表側の面にソルダーレジストからなる永久レジスト１５’を塗布するとともに、金属板の裏側の面にドライフィルムレジストＲ２をラミネートする（図３(j)参照）。なお、好ましくは、金属板の両面に形成された第２のレジストマスクを除去した後、金属板の表側の面に永久レジスト１５’を塗布する前に、金属板に形成された配線部となるめっき層１２をマスクとして金属板表面を粗化処理する。
次に、先に形成した配線部となるめっき層の領域内における一部の外部端子となる部位に重ねてめっき層を形成するためのパターン（ここではパターンＣとする）が形成されたガラスマスクを用いて、表面側の永久レジスト１５’を露光・現像するとともに、裏面側のドライフィルムレジストＲ２に対しては、全面を照射するガラスマスクを用いて裏面側を露光・現像する。そして、図３(k)に示すように、第３のレジストマスクとして、表面にはパターンＣの永久レジスト１５’からなるレジストマスクを形成し、裏面には全面を覆うレジストマスクを形成する。
次に、第３のレジストマスクから露出している、配線部となるめっき層１２を構成するＮｉめっき層（又はＣｕめっき層）の表面に、第２のめっき層１３として、例えば、Ｎｉめっき層、Ｐｄめっき層、Ａｕめっき層の順で夫々所定の厚さとなり、且つ、最上層のめっき層（Ａｕめっき層）の面が第３のレジストマスクの面の高さ以下となるように、Ｎｉめっき、Ｐｄめっき、Ａｕめっきを夫々施す。図３(l)は、このときの状態を示している。好ましくは、最上層のめっき層の面が第３のレジストマスクの面よりも３〜１３μｍ程度低い、凹みが形成されるように夫々のめっきを施す。このようにすると、半導体装置を搭載後に外部機器と半田接合する際に半田が凹みに留まり易くなり、半田ブリードを防止できる。Ｎｉめっき層は、例えば、２０〜５０μｍの厚さに形成する。なお、Ｎｉめっき層を設けずに、Ｐｄめっき層、Ａｕめっき層の順で夫々所定の厚さとなるように、Ｐｄめっき、Ａｕめっきを夫々施してもよい。また、第２のめっき層１３における外部端子接合面となるめっき層を構成する金属は、Ｎｉ、Ｐｄ、Ａｕ、Ｓｎ等から、外部基材と半田接合可能な種類を適宜選択できる。
次に、裏面の第３のレジストマスクを除去する（図３(m)参照）。
次に、半導体装置用基板の金属板に対して、金属板の他方の側（裏側）の面における半導体装置用配線部材の集合体の外周領域の開口部に形成しためっき層１９をエッチングレジストとして用いて、エッチングを施し、金属板を溶解等により除去し、図３(n)に示すように、内部端子となる第１のめっき層１１の表面を永久レジスト１５’の一方の側の面１５ａ’から露出させるとともに、半導体装置用配線部材の集合体の外周に金属枠部１６を形成する。これにより、本実施形態の多列型半導体装置用配線部材が完成する。 Next, the second resist masks on both sides are removed (see FIG. 3 (i)). Then, a permanent resist 15 ′ made of a solder resist is applied to the front surface of the metal plate, and a dry film resist R2 is laminated to the back surface of the metal plate (see FIG. 3 (j)). Preferably, after the second resist mask formed on both surfaces of the metal plate is removed, the wiring portion formed on the metal plate is formed before the permanent resist 15 ′ is applied to the front surface of the metal plate. The surface of the metal plate is roughened using the plating layer 12 as a mask.
Next, a glass mask on which a pattern (here referred to as pattern C) for forming a plating layer is formed so as to overlap with a portion to be a part of external terminals in the region of the plating layer to be the wiring portion formed earlier. Is used to expose and develop the permanent resist 15 'on the front surface side, and to the dry film resist R2 on the back surface side, the back side is exposed and developed using a glass mask that irradiates the entire surface. Then, as shown in FIG. 3 (k), as the third resist mask, a resist mask made of a permanent resist 15 'of pattern C is formed on the front surface, and a resist mask covering the entire surface is formed on the back surface.
Next, on the surface of the Ni plating layer (or Cu plating layer) that constitutes the plating layer 12 serving as the wiring portion exposed from the third resist mask, for example, a Ni plating layer is used as the second plating layer 13. Ni, Pd plating layer, Au plating layer in order, and the thickness of the uppermost plating layer (Au plating layer) is less than the height of the third resist mask surface. Plating, Pd plating, and Au plating are performed respectively. FIG. 3 (l) shows the state at this time. Preferably, each plating is performed so that a recess is formed in which the surface of the uppermost plating layer is lower by about 3 to 13 μm than the surface of the third resist mask. In this way, when the semiconductor device is mounted and soldered to an external device, the solder tends to stay in the dent and solder bleed can be prevented. The Ni plating layer is formed to a thickness of 20 to 50 μm, for example. Note that, without providing the Ni plating layer, Pd plating and Au plating may be performed so that the Pd plating layer and the Au plating layer have a predetermined thickness in this order. Moreover, the metal which comprises the plating layer used as the external terminal joining surface in the 2nd plating layer 13 can select suitably the kind which can be solder-joint with an external base material from Ni, Pd, Au, Sn.
Next, the third resist mask on the back surface is removed (see FIG. 3 (m)).
Next, with respect to the metal plate of the semiconductor device substrate, the plating layer 19 formed in the opening in the outer peripheral region of the assembly of the wiring members for the semiconductor device on the other side (back side) of the metal plate is used as an etching resist. Then, etching is performed and the metal plate is removed by dissolution or the like. As shown in FIG. 3 (n), the surface of the first plating layer 11 serving as an internal terminal is made to be a surface 15a on one side of the permanent resist 15 ′. The metal frame portion 16 is formed on the outer periphery of the assembly of semiconductor device wiring members. As a result, the multi-row semiconductor device wiring member of the present embodiment is completed.

このようにして製造された第１実施形態の半導体装置用配線部材を用いた半導体装置の製造は次のようにして行う。図４は図３に示す製造工程を経て製造された第１実施形態の多列型半導体装置用配線部材を用いた樹脂封止型半導体装置の製造工程の一例を示す説明図である。図５は図４に示す製造工程における個々の半導体装置用配線部材に対する半導体素子のフリップチップ実装態様を示す図で、(a)は半導体素子搭載側からみた平面図、(b)は(a)の断面図である。
まず、図４(a)に示す半導体装置用配線部材の内部端子面側に半導体素子２０を搭載し、半田ボール１４を介して、半導体素子２０の電極を、永久レジスト１５’の一方の側の面１５ａ’から露出した内部端子と接続させる（図４(b)、図５(a)、図５(b)参照）。なお、第１実施形態の半導体装置用配線部材では、露出した内部端子の表面が永久レジスト１５’の一方の側の面１５ａ’と面一になっているため、半導体素子２０を安定した状態で搭載できる。
次に、半田ボール１４を介して接続した半導体素子２０の内部端子側の隙間を、所定の封止材１７で封止する（図４(c)参照）。
次に、半導体素子２０を搭載した面を封止樹脂１８で封止する（図４(d)参照）。
次に、個々の半導体装置領域を切断する（図４(e)参照）。
これにより、半導体装置が完成する。なお、図４(a)〜図４(e)は、半導体装置用配線部材の上下方向を変えないで図示している。 Manufacturing of the semiconductor device using the wiring member for semiconductor device of the first embodiment manufactured as described above is performed as follows. FIG. 4 is an explanatory view showing an example of a manufacturing process of a resin-encapsulated semiconductor device using the multi-row semiconductor device wiring member of the first embodiment manufactured through the manufacturing process shown in FIG. FIG. 5 is a view showing a flip-chip mounting mode of a semiconductor element on each semiconductor device wiring member in the manufacturing process shown in FIG. 4, wherein (a) is a plan view seen from the semiconductor element mounting side, and (b) is (a). FIG.
First, the semiconductor element 20 is mounted on the internal terminal surface side of the wiring member for a semiconductor device shown in FIG. 4A, and the electrode of the semiconductor element 20 is placed on one side of the permanent resist 15 ′ via the solder balls 14. It connects with the internal terminal exposed from surface 15a '(refer FIG.4 (b), FIG.5 (a), FIG.5 (b)). In the semiconductor device wiring member according to the first embodiment, since the exposed internal terminal surface is flush with the surface 15a ′ on one side of the permanent resist 15 ′, the semiconductor element 20 is kept in a stable state. Can be installed.
Next, the gap on the internal terminal side of the semiconductor element 20 connected via the solder ball 14 is sealed with a predetermined sealing material 17 (see FIG. 4C).
Next, the surface on which the semiconductor element 20 is mounted is sealed with a sealing resin 18 (see FIG. 4D).
Next, the individual semiconductor device regions are cut (see FIG. 4E).
Thereby, the semiconductor device is completed. 4A to 4E show the semiconductor device wiring member without changing the vertical direction.

完成した半導体装置を、外部部材に搭載する。この場合、外部端子のみが樹脂から露出していることで、外部部材に設けられた接続用端子と容易に接続できる。   The completed semiconductor device is mounted on an external member. In this case, since only the external terminal is exposed from the resin, it can be easily connected to the connection terminal provided on the external member.

第１実施形態の多列型半導体装置用配線部材によれば、永久レジスト１５’の一方の側の面１５ａ’における、半導体装置用配線部材の集合体の外周領域に金属枠部１６を形成したので、多列型半導体装置用配線部材が、金属枠部１６で補強され、搬送しても変形し難い強度を確保できる。
また、第１実施形態の多列型半導体装置用配線部材によれば、個々の半導体装置用配線部材が、複数備わる、夫々のめっき層の積層体を、内部端子と外部端子を配線部で接続しためっき層１１，１２，１３の積層体で形成したので、内部端子と外部端子夫々の実装ピッチを設計に応じて調整できる。
また、第１実施形態の多列型半導体装置用配線部材によれば、内部端子と外部端子を配線部で接続しためっき層１１，１２，１３の積層体の側面形状が、略Ｌ字形状又は略Ｔ字形状となるように構成したので、永久レジスト１５’との密着性が向上し、端子を形成するめっき被膜の永久レジストからの抜けを防止できる。
また、第１実施形態の多列型半導体装置用配線部材によれば、配線部となるめっき層１２の上に、配線部となるめっき層１２の領域内で部分的に外部端子となる第２のめっき層１３を形成する構成にしたので、外部端子となる第２のめっき層１３を小さく形成でき、外部端子として半導体装置の裏面に露出する第２のめっき層１３の脱落や抜けを防止できる。
また、第１実施形態の多列型半導体装置用配線部材によれば、図１(d)、図１(e)に示すように、配線部となるめっき層１２が、第１のめっき層１１の上面及び側面に接続した状態で第１のめっき層１１を取り囲み、第１のめっき層１１の側方に位置する配線部となるめっき層１２の下面が永久レジスト１５’の一方の側の面１５ａ’に露出するように形成されているので、内部端子となる第１のめっき層１１の領域を最小限に抑えることができ、内部端子用の貴金属めっき層の使用量を抑えてコストを最小限に低減できる。
更に、半導体装置用配線部材に半導体素子をフリップチップ実装して半導体装置を組み立てる場合において、貴金属めっき層である第１のめっき層１１では半田の濡れ広がりが容易であるが、その周囲のＮｉによる配線部となるめっき層１２では実装時の熱等によるＮｉ表面の酸化等によって半田の濡れ広がりが抑制されるため、内部端子間距離の微細化に伴う半田ブリード、半田ブリッジを防止することができる。その結果、半導体装置の微細化をより促進させることができる。
また、第１実施形態の多列型半導体装置用配線部材によれば、従来の半導体装置用基板において半導体装置の製造過程で設ける樹脂を半導体装置用基板に永久レジストとして予め設けるとともに、永久レジストの開口部に、内部端子及び配線部とは厚みの異なる外部端子を予め設け、内部端子及び配線部を永久レジストで封止し、永久レジストの他方の側の面から外部端子のみを露出させたので、従来の半導体装置用基板とは異なり半導体装置の製造過程で金属板のエッチング除去や外部部材との接続面に開口部を有する絶縁層を設ける必要がなくなり、その分、半導体装置の製造時の工程数が減少し生産性が向上する。
また、第１実施形態の多列型半導体装置用配線部材によれば、積層めっき被膜と永久レジストのみからなる構造となり、フリップチップ実装後に樹脂封止する際には、半導体装置用配線部材の永久レジスト１５’及び露出しためっき被膜のみを封止樹脂１８で封止することになり、膨張係数の大きく異なる基材（金属板）の表面を樹脂封止することがないため、封止樹脂１８の硬化後の反りが軽減される。詳しくは、基材をなす金属板への樹脂封止に比べて、永久レジストへの樹脂封止は、永久レジストと封止樹脂とが、物理的な特性が同系統の材料同士であるため、封止樹脂硬化後の熱収縮や熱膨張が小さくなる。しかも、特許文献１，２に記載の半導体装置用基板のように、封止樹脂部形成後に基材を除去するようなことがない。その結果、封止樹脂の硬化後の反りが小さくなる。
また、第１実施形態の多列型半導体装置用配線部材によれば、半導体装置の製造工程において基材をなす金属板のエッチング除去や外部機器との接続面に開口部を形成するための加工（ソルダーレジストの塗布、露光、現像）の必要がないため、水分や薬液が浸入して半導体装置を劣化させる虞がない。 According to the multi-row type semiconductor device wiring member of the first embodiment, the metal frame portion 16 is formed in the outer peripheral region of the assembly of the semiconductor device wiring members on the surface 15a ′ on one side of the permanent resist 15 ′. Therefore, the wiring member for a multi-row type semiconductor device is reinforced by the metal frame portion 16, and it is possible to secure a strength that is difficult to be deformed even if transported.
Further, according to the wiring member for a multi-row type semiconductor device of the first embodiment, a plurality of individual wiring members for a semiconductor device are provided, and a laminate of each plating layer is connected to the internal terminal and the external terminal by the wiring part. Since the plated layers 11, 12, and 13 are formed of the laminated body, the mounting pitches of the internal terminals and the external terminals can be adjusted according to the design.
Moreover, according to the wiring member for a multi-row type semiconductor device of the first embodiment, the side surface shape of the laminate of the plating layers 11, 12, 13 in which the internal terminal and the external terminal are connected by the wiring portion is substantially L-shaped or Since it is configured to be substantially T-shaped, the adhesion with the permanent resist 15 'is improved, and the plating film forming the terminal can be prevented from coming off from the permanent resist.
Further, according to the wiring member for a multi-row type semiconductor device of the first embodiment, the second part which becomes the external terminal partially on the plating layer 12 which becomes the wiring part in the region of the plating layer 12 which becomes the wiring part. Since the plating layer 13 is formed, the second plating layer 13 serving as an external terminal can be formed small, and the second plating layer 13 exposed on the back surface of the semiconductor device as the external terminal can be prevented from falling off or coming off. .
Further, according to the wiring member for a multi-row type semiconductor device of the first embodiment, as shown in FIGS. 1D and 1E, the plating layer 12 serving as the wiring portion is the first plating layer 11. The lower surface of the plating layer 12 that surrounds the first plating layer 11 in a state of being connected to the upper surface and side surfaces of the first plating layer 11 and serves as a wiring portion located on the side of the first plating layer 11 is a surface on one side of the permanent resist 15 ′. Since it is formed so as to be exposed at 15a ′, the area of the first plating layer 11 serving as the internal terminal can be minimized, and the amount of the precious metal plating layer for the internal terminal can be suppressed to minimize the cost. Can be reduced to the limit.
Furthermore, in the case of assembling a semiconductor device by flip-chip mounting a semiconductor element on a wiring member for a semiconductor device, the first plating layer 11 that is a noble metal plating layer is easy to wet and spread the solder, but it depends on the surrounding Ni. In the plating layer 12 serving as the wiring portion, solder wetting and spreading are suppressed by oxidation of the Ni surface due to heat or the like at the time of mounting, and therefore, solder bleeding and solder bridging due to miniaturization of the distance between the internal terminals can be prevented. . As a result, miniaturization of the semiconductor device can be further promoted.
Further, according to the wiring member for a multi-row type semiconductor device of the first embodiment, the resin provided in the manufacturing process of the semiconductor device in the conventional semiconductor device substrate is provided in advance on the semiconductor device substrate as a permanent resist, and the permanent resist Since external terminals having different thicknesses from the internal terminals and wiring portions are provided in the openings in advance, the internal terminals and wiring portions are sealed with a permanent resist, and only the external terminals are exposed from the other side surface of the permanent resist. Unlike conventional semiconductor device substrates, it is no longer necessary to provide an insulating layer having an opening on the connecting surface with the external member by removing the metal plate by etching during the manufacturing process of the semiconductor device. The number of processes is reduced and productivity is improved.
Further, according to the wiring member for a multi-row type semiconductor device of the first embodiment, it has a structure composed only of a laminated plating film and a permanent resist. When the resin sealing is performed after the flip chip mounting, the wiring member for the semiconductor device is made permanent. Only the resist 15 ′ and the exposed plating film are sealed with the sealing resin 18, and the surfaces of the base materials (metal plates) having greatly different expansion coefficients are not sealed with the resin. Warpage after curing is reduced. Specifically, compared to resin sealing to the metal plate that forms the base material, the resin sealing to the permanent resist is because the permanent resist and the sealing resin are materials of the same physical properties, Thermal shrinkage and thermal expansion after curing the sealing resin are reduced. Moreover, unlike the semiconductor device substrates described in Patent Documents 1 and 2, the base material is not removed after the sealing resin portion is formed. As a result, warpage after curing of the sealing resin is reduced.
Further, according to the wiring member for a multi-row type semiconductor device of the first embodiment, the processing for removing the metal plate that forms the base material in the manufacturing process of the semiconductor device and forming the opening on the connection surface with the external device. Since there is no need for (solder resist coating, exposure, development), there is no possibility that water or chemicals will enter and the semiconductor device will deteriorate.

従って、第１実施形態の多列型半導体装置用配線部材及びその製造方法によれば、半導体装置を薄型化、小型化でき、端子部を構成するめっき被膜と樹脂との密着性を向上させ、半導体素子を搭載する内部端子面および半導体素子と電気的接続をする内部端子部の高さを均一にでき、更に半導体装置の製造工程において金属板のエッチング除去や外部端子部のみが露出する開口部を形成する工程を省略でき、封止樹脂硬化後の樹脂の反りを軽減でき、半導体装置製造時の工程数を削減して、信頼性の高い樹脂封止型半導体装置を歩留まり良く量産可能となる。   Therefore, according to the wiring member for a multi-row semiconductor device and the manufacturing method thereof according to the first embodiment, the semiconductor device can be thinned and miniaturized, and the adhesion between the plating film constituting the terminal portion and the resin is improved. The height of the internal terminal surface on which the semiconductor element is mounted and the internal terminal part electrically connected to the semiconductor element can be made uniform, and the metal plate is etched away and only the external terminal part is exposed in the semiconductor device manufacturing process. The process of forming the resin can be omitted, the warpage of the resin after curing the sealing resin can be reduced, the number of processes during the manufacture of the semiconductor device can be reduced, and a highly reliable resin-encapsulated semiconductor device can be mass-produced with a high yield. .

実施例
次に、本発明の多列型半導体装置用配線部材及びその製造方法の実施例を説明する。
なお、各工程には、薬液洗浄や水洗浄等を含む前処理・後処理を実施するが一般的な処理であるので記載を省略する。
まず、金属板１として、リードフレーム材としても使用されている板厚０．１５ｍｍの銅材を用意した（図３(a)参照）。
第１のレジストマスク形成工程においては、金属板１の両面に、厚さ２５μｍのドライフィルムレジストＲをラミネートした（図３(b)参照）。
次に、表面側に所定の位置にめっきを形成するためのパターンＡが形成されたガラスマスクを用いて表面側のドライフィルムレジストＲに露光・現像を行い、めっきを形成する部分が開口された第１のレジストマスクを形成した。裏面側のドライフィルムレジストＲに対しては、全面を照射するガラスマスクを用いて露光・現像を行い、全面を覆う第１のレジストマスクを形成した。この露光・現像は従来工法と同様で、露光用のガラスマスクをドライフィルムレジストＲに密着させ、紫外線を照射することによって、夫々のパターンをドライフィルムレジストＲに露光し、炭酸ナトリウムにより現像を行なった（図３(c)参照）。
次のめっき工程では、表側の面に形成した第１のレジストマスクから露出している金属板に一般的なめっき前処理を行なった後、順にＡｕを０．０１μｍ、Ｐｄを０．０３μｍ、めっきを施した（図３(d)参照）。
次に、両面の第１のレジストマスクを剥離し（図３(e)参照）、剥離した両面にドライフィルムレジストＲ’をラミネートした（図３(f)参照）。
次に、表面側に所定の位置にめっきを形成するためのパターンＢが形成されたガラスマスクを用いて表面側のドライフィルムレジストＲ’に露光・現像を行い、めっきを形成する部分が開口された第２のレジストマスクを形成した。裏面側のドライフィルムレジストＲ’に対しては、半導体装置用配線部材の集合体の外周領域に金属枠部形成用レジストを形成するためのパターンが形成されたガラスマスクを用いて露光・現像を行い、半導体装置用配線部材の集合体の外周領域が開口され、それ以外の領域を覆う第２のレジストマスクを形成した（図３(g)参照）。
次のめっき工程では、両面に形成した第２のレジストマスクから露出している金属板に一般的なめっき前処理を行なった後、Ｎｉを４．０μm、めっきを施した（図３(h)参照）。
次に、両面の第２のレジストマスクを剥離し（図３(i)参照）、金属板の表側の面にソルダーレジストからなる永久レジスト１５’を塗布するとともに、金属板の裏側の面にドライフィルムレジストＲ２をラミネートした（図３(j)参照）。このとき、形成する第２の金属めっき層の厚さに応じてレジストの厚さを選定する必要があるが、本実施例では第２の金属めっき層を１５〜４０μｍとなるよう形成するため、最上層のめっき層の面が第３のレジストマスクの面の高さ以下となるように、表面側のみ厚さが５０μｍのレジストを用い、裏面側は厚さが２５μｍのレジストを用いた。
そして、先に形成しためっき層の一部であって、外部端子となる部分に重ねてめっきを形成するためのパターンＣが形成されたガラスマスクを用いて露光・現像を行って第３のレジストマスクを形成した（図３(k)参照）。なお、裏面側は、全体を覆う第３のレジストマスクを形成した。
次のめっき工程では、形成した第３のレジストマスクから露出しているＮｉめっき面に順にＮｉを２０．０μｍ、Ｐｄを０．０３μｍ、Ａｕを０．０１μｍ、めっきを施し（図３(l)参照）、次に、裏側の面の第３のレジストマスクを除去した（図３(m)参照）。
次に、金属板（銅材）１の裏側の面における半導体装置用配線部材の集合体の外周領域の開口部に形成しためっき層１９をエッチングレジストとして用いて、めっき層に覆われていない露出した金属板をエッチング除去し、半導体装置用配線部材の集合体の外周に金属枠部１６を形成した多列型半導体装置用配線部材を作製した（図３(n)参照）。
完成した多列型半導体装置用配線部材の永久レジスト１５’で固定されためっき層を配線として、金属板と接していた面側に半導体素子を搭載して内部端子と導通をとり（図４(b)参照）、半導体素子搭載部を封止樹脂１８で封止し（図４(d)参照）、個々の半導体装置領域を切断することで外部端子の表面が永久レジスト１５’の面１５ｂ’から露出した状態の半導体装置を得た（図４(e)参照）。 EXAMPLES Next, examples of the wiring member for a multi-row type semiconductor device and the method for manufacturing the same according to the present invention will be described.
In each step, pre-processing and post-processing including chemical cleaning, water cleaning and the like are performed.
First, a copper material having a thickness of 0.15 mm, which is also used as a lead frame material, was prepared as the metal plate 1 (see FIG. 3A).
In the first resist mask forming step, a dry film resist R having a thickness of 25 μm was laminated on both surfaces of the metal plate 1 (see FIG. 3B).
Next, exposure and development were performed on the dry film resist R on the surface side using a glass mask on which a pattern A for forming plating at a predetermined position on the surface side was formed, and a portion for forming the plating was opened. A first resist mask was formed. The dry film resist R on the back side was exposed and developed using a glass mask that irradiates the entire surface, thereby forming a first resist mask covering the entire surface. This exposure / development is the same as the conventional method, and by exposing the glass mask for exposure to the dry film resist R and irradiating with ultraviolet rays, each pattern is exposed to the dry film resist R and developed with sodium carbonate. (See FIG. 3 (c)).
In the next plating step, after performing general plating pretreatment on the metal plate exposed from the first resist mask formed on the front surface, Au is 0.01 μm, Pd is 0.03 μm, and plating is sequentially performed. (See FIG. 3 (d)).
Next, the first resist masks on both sides were peeled off (see FIG. 3 (e)), and the dry film resist R ′ was laminated on the peeled both sides (see FIG. 3 (f)).
Next, the dry film resist R ′ on the surface side is exposed and developed using a glass mask in which a pattern B for forming plating at a predetermined position on the surface side is formed, and a portion for forming the plating is opened. A second resist mask was formed. For the dry film resist R ′ on the back side, exposure and development are performed using a glass mask in which a pattern for forming a metal frame forming resist is formed in the outer peripheral region of the assembly of wiring members for a semiconductor device. As a result, an outer peripheral region of the assembly of wiring members for a semiconductor device was opened, and a second resist mask covering the other region was formed (see FIG. 3G).
In the next plating step, the metal plate exposed from the second resist mask formed on both sides was subjected to general plating pretreatment, and then plated with 4.0 μm of Ni (FIG. 3 (h)). reference).
Next, the second resist masks on both sides are peeled off (see FIG. 3 (i)), and a permanent resist 15 'made of a solder resist is applied to the front side surface of the metal plate, and dry on the back side surface of the metal plate. A film resist R2 was laminated (see FIG. 3 (j)). At this time, although it is necessary to select the thickness of the resist according to the thickness of the second metal plating layer to be formed, in this embodiment, the second metal plating layer is formed to be 15 to 40 μm. A resist having a thickness of 50 μm was used only on the front surface side, and a resist having a thickness of 25 μm was used on the back surface side so that the surface of the uppermost plating layer was below the height of the surface of the third resist mask.
Then, exposure and development are performed using a glass mask that is a part of the plating layer formed earlier and on which a pattern C for forming plating is formed so as to overlap with a portion to be an external terminal, thereby performing the third resist. A mask was formed (see FIG. 3 (k)). In addition, the 3rd resist mask which covers the whole was formed in the back surface side.
In the next plating step, Ni is exposed to 20.0 μm, Pd is 0.03 μm, Au is 0.01 μm in order on the Ni plating surface exposed from the formed third resist mask (FIG. 3 (l)). Next, the third resist mask on the back surface was removed (see FIG. 3 (m)).
Next, the plating layer 19 formed in the opening of the outer peripheral region of the assembly of the wiring members for semiconductor devices on the back side surface of the metal plate (copper material) 1 is used as an etching resist, and is not covered with the plating layer. The metal plate thus etched was removed by etching to produce a multi-row type semiconductor device wiring member in which the metal frame portion 16 was formed on the outer periphery of the assembly of semiconductor device wiring members (see FIG. 3 (n)).
The plating layer fixed by the permanent resist 15 'of the completed multi-row type semiconductor device wiring member is used as a wiring, and a semiconductor element is mounted on the surface side in contact with the metal plate to establish conduction with the internal terminals (FIG. 4 ( b)), the semiconductor element mounting portion is sealed with the sealing resin 18 (see FIG. 4D), and the individual semiconductor device regions are cut so that the surface of the external terminal is the surface 15b ′ of the permanent resist 15 ′. Thus, a semiconductor device exposed was obtained (see FIG. 4E).

以上、本発明の多列型半導体装置用配線部材の実施形態及び実施例について説明したが、本発明の多列型半導体装置用配線部材は、上記実施形態及び実施例の構成に限定されるものではない。
例えば、第１実施形態の多列型半導体装置用配線部材では、第１のめっき層にＡｕ、Ｐｄ、配線部となるめっき層に金属めっき層にＮｉ、第２のめっき層にＮｉ、Ｐｄ、Ａｕを用いたが、本発明の多列型半導体装置用配線部材における第１のめっき層、配線部となるめっき層、第２のめっき層の形成に用いるめっきの組み合わせは、これに限定されるものではなく、変形例として、次の表１に示すようなめっきを施した第１のめっき層、配線部となるめっき層、第２のめっき層を組み合わせて、本発明の多列型半導体装置用配線部材を構成してもよい。なお表１では、めっきが各変形例において欄の上から順に施されるものとして示してある。

Figure 0006485776
While the embodiments and examples of the multi-row semiconductor device wiring member of the present invention have been described above, the multi-row semiconductor device wiring member of the present invention is limited to the configurations of the above-described embodiments and examples. is not.
For example, in the wiring member for a multi-row type semiconductor device of the first embodiment, Au and Pd are used as the first plating layer, Ni is used as the metal plating layer, and Ni, Pd is used as the second plating layer. Although Au is used, the combination of the plating used for forming the first plating layer, the plating layer to be the wiring portion, and the second plating layer in the wiring member for a multi-row semiconductor device of the present invention is limited to this. Instead of the above, as a modified example, the first plating layer plated as shown in the following Table 1, the plating layer serving as the wiring portion, and the second plating layer are combined to provide a multi-row semiconductor device of the present invention. A wiring member may be configured. In Table 1, it is shown that plating is performed in order from the top of each column in each modification.
Figure 0006485776

本発明の多列型半導体装置用配線部材は、表面実装型の封止樹脂型半導体装置を組み立てることが必要とされる分野に有用である。   The wiring member for a multi-row type semiconductor device of the present invention is useful in a field where it is necessary to assemble a surface mount type sealing resin type semiconductor device.

１ 金属板（基材）
１０ 半導体装置用配線部材
１１ 第１のめっき層
１２ 配線部となるめっき層
１３ 第２のめっき層
１４ 半田ボール
１５’ 永久レジスト
１５ａ’ 永久レジストの一方の側の面
１５ｂ’ 永久レジストの他方の側の面
１６ 金属枠部
１７ 封止材
１８ 封止樹脂
１９ めっき層
２０ 半導体素子 1 Metal plate (base material)
DESCRIPTION OF SYMBOLS 10 Wiring member 11 for semiconductor devices 1st plating layer 12 Plating layer 13 used as wiring part 2nd plating layer 14 Solder ball 15 'Permanent resist 15a' Surface 15b 'of permanent resist The other side of permanent resist Surface 16 Metal frame portion 17 Sealing material 18 Sealing resin 19 Plating layer 20 Semiconductor element

Claims (4)

永久レジストの一方の側の面における所定部位に内部端子となる第１のめっき層が下面を該永久レジストの一方の側の面に露出させた状態で形成され、前記第１のめっき層と接続する配線部となるめっき層が形成され、更に前記配線部となるめっき層の上に該配線部となるめっき層の領域内で部分的に外部端子となる第２のめっき層が上面を前記永久レジストの他方の側の面から露出させた状態で形成され、前記内部端子と前記配線部と前記外部端子を構成し、側面形状が、略Ｌ字形状又は略Ｔ字形状に形成されている、めっき層の積層体を複数備えてなる半導体装置用配線部材が、マトリックス状に配列された多列型半導体装置用配線部材であって、
前記永久レジストの一方の側の面における、個々の前記半導体装置用配線部材がマトリックス状に配列された半導体装置用配線部材の集合体の外周領域に金属枠部が形成され、
前記配線部となるめっき層は、前記第１のめっき層の上面及び側面に接続した状態で該第１のめっき層を取り囲み、該第１のめっき層の側方に位置する該配線部となるめっき層の下面が前記永久レジストの一方の側の面に露出するように形成されていることを特徴とする多列型半導体装置用配線部材。 A first plating layer serving as an internal terminal is formed at a predetermined site on one side surface of the permanent resist with the lower surface exposed on the one side surface of the permanent resist, and is connected to the first plating layer A plating layer to be a wiring portion to be formed is formed, and a second plating layer to be an external terminal partially on an upper surface of the plating layer to be the wiring portion on the plating layer to be the wiring portion. It is formed in a state exposed from the surface on the other side of the resist, constitutes the internal terminal, the wiring portion, and the external terminal, and the side surface shape is formed in a substantially L shape or a substantially T shape, A wiring member for a semiconductor device comprising a plurality of laminates of plating layers is a wiring member for a multi-row type semiconductor device arranged in a matrix,
A metal frame portion is formed in the outer peripheral region of the assembly of the semiconductor device wiring members in which the individual semiconductor device wiring members are arranged in a matrix on the one side surface of the permanent resist,
The plating layer serving as the wiring portion surrounds the first plating layer in a state of being connected to the upper surface and the side surface of the first plating layer, and serves as the wiring portion positioned on the side of the first plating layer. A wiring member for a multi-row type semiconductor device, wherein the lower surface of the plating layer is formed so as to be exposed on one surface of the permanent resist. 前記第１のめっき層の上に形成されている前記配線部となるめっき層の上面は、粗化面であることを特徴とする請求項１に記載の多列型半導体装置用配線部材。   2. The wiring member for a multi-row type semiconductor device according to claim 1, wherein an upper surface of the plating layer to be the wiring portion formed on the first plating layer is a roughened surface. 永久レジストの一方の側の面における所定部位に内部端子となる第１のめっき層が下面を該永久レジストの一方の側の面に露出させた状態で形成され、前記第１のめっき層と接続する配線部となるめっき層が形成され、更に前記配線部となるめっき層の上に該配線部となるめっき層の領域内で部分的に外部端子となる第２のめっき層が上面を前記永久レジストの他方の側の面から露出させた状態で形成され、前記内部端子と前記配線部と前記外部端子を構成し、側面形状が、略Ｌ字形状又は略Ｔ字形状に形成されている、めっき層の積層体を複数備えてなる半導体装置用配線部材がマトリックス状に配列された多列型半導体装置用配線部材の製造方法であって、
金属板の他方の側の面にパターンＡの開口部を有する第１のレジストマスクを形成するとともに、前記金属板の一方の側の面全体を覆う第１のレジストマスクを形成する工程と、
前記パターンＡの開口部に内部端子となる第１のめっき層を形成する工程と、
前記金属板の両面に形成された前記第１のレジストマスクを除去する工程と、
前記金属板の他方の側の面に、前記第１のめっき層を取り囲む広さのパターンＢの開口部を有する第２のレジストマスクを形成するとともに、前記金属板の一方の側の面に、半導体装置用配線部材の集合体の外周領域に開口部を有する第２のレジストマスクを形成する工程と、
前記パターンＢの開口部に配線部となるめっき層を、前記第１のめっき層を取り囲むように形成するとともに、前記外周領域の開口部に金属枠部形成用レジストとなるめっき層を形成する工程と、
前記金属板の両面に形成された前記第２のレジストマスクを除去する工程と、
前記金属板の他方の側の面に前記配線部となるめっき層の領域内において一部が露出するパターンＣの開口部を有する永久レジストからなる第３のレジストマスクを形成するとともに、前記金属板の一方の側の面全体を覆う感光レジストからなる第３のレジストマスクを形成する工程と、
前記パターンＣの開口部に外部端子となる第２のめっき層を形成する工程と、
前記金属板の一方の側の面に形成された前記第３のレジストマスクを除去する工程と、
前記金属板における、前記半導体装置用配線部材の集合体の外周領域に形成した前記金属枠部形成用レジストとなるめっき層で覆われていない部位の金属を除去する工程と、
を有することを特徴とする多列型半導体装置用配線部材の製造方法。 A first plating layer serving as an internal terminal is formed at a predetermined site on one side surface of the permanent resist with the lower surface exposed on the one side surface of the permanent resist, and is connected to the first plating layer A plating layer to be a wiring portion to be formed is formed, and a second plating layer to be an external terminal partially on an upper surface of the plating layer to be the wiring portion on the plating layer to be the wiring portion. It is formed in a state exposed from the surface on the other side of the resist, constitutes the internal terminal, the wiring portion, and the external terminal, and the side surface shape is formed in a substantially L shape or a substantially T shape, A method for producing a wiring member for a multi-row semiconductor device in which wiring members for a semiconductor device comprising a plurality of laminates of plating layers are arranged in a matrix,
Forming a first resist mask having an opening of pattern A on the other side surface of the metal plate, and forming a first resist mask covering the entire one side surface of the metal plate;
Forming a first plating layer serving as an internal terminal in the opening of the pattern A;
Removing the first resist mask formed on both surfaces of the metal plate;
On the other side surface of the metal plate, a second resist mask having an opening of a pattern B having a width surrounding the first plating layer is formed, and on the one side surface of the metal plate, Forming a second resist mask having an opening in the outer peripheral region of the assembly of wiring members for a semiconductor device;
Forming a plating layer to be a wiring portion in the opening of the pattern B so as to surround the first plating layer, and forming a plating layer to be a metal frame forming resist in the opening of the outer peripheral region; When,
Removing the second resist mask formed on both surfaces of the metal plate;
Forming a third resist mask made of a permanent resist having a pattern C opening partly exposed in a region of the plating layer to be the wiring portion on the other side surface of the metal plate; Forming a third resist mask made of a photosensitive resist covering the entire surface on one side of
Forming a second plating layer serving as an external terminal in the opening of the pattern C;
Removing the third resist mask formed on the surface on one side of the metal plate;
Removing the metal in a portion of the metal plate that is not covered with a plating layer to be the metal frame forming resist formed in the outer peripheral region of the assembly of the wiring members for a semiconductor device;
A method for manufacturing a wiring member for a multi-row semiconductor device, comprising: 前記配線部となるめっき層の形成後、且つ、前記第３のレジストマスクの形成前に、前記配線部となるめっき層の上面に、粗化処理を施すか、あるいは前記配線部となるめっき層が粗化めっき層として形成されることを特徴とする請求項３に記載の多列型半導体装置用配線部材の製造方法。   After the formation of the plating layer to be the wiring part and before the formation of the third resist mask, the top surface of the plating layer to be the wiring part is subjected to a roughening treatment or the plating layer to be the wiring part 4. The method for manufacturing a wiring member for a multi-row type semiconductor device according to claim 3, wherein is formed as a rough plating layer.
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