JP2006086150A - Semiconductor device - Google Patents

Semiconductor device Download PDF

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JP2006086150A
JP2006086150A JP2004266307A JP2004266307A JP2006086150A JP 2006086150 A JP2006086150 A JP 2006086150A JP 2004266307 A JP2004266307 A JP 2004266307A JP 2004266307 A JP2004266307 A JP 2004266307A JP 2006086150 A JP2006086150 A JP 2006086150A
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chip
semiconductor device
wiring board
electrode
conductive bumps
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Takatoshi Osumi
貴寿 大隅
Tomoaki Hashimoto
知明 橋本
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Renesas Technology Corp
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Renesas Technology Corp
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Priority to JP2004266307A priority Critical patent/JP2006086150A/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/10Bump connectors; Manufacturing methods related thereto
    • H01L2224/15Structure, shape, material or disposition of the bump connectors after the connecting process
    • H01L2224/16Structure, shape, material or disposition of the bump connectors after the connecting process of an individual bump connector
    • H01L2224/161Disposition
    • H01L2224/16151Disposition the bump connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
    • H01L2224/16221Disposition the bump connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
    • H01L2224/16225Disposition the bump connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42Wire connectors; Manufacturing methods related thereto
    • H01L2224/47Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/481Disposition
    • H01L2224/48151Connecting 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
    • H01L2224/48221Connecting 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
    • H01L2224/48225Connecting 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 non-metallic, e.g. insulating substrate with or without metallisation
    • H01L2224/48227Connecting 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 non-metallic, e.g. insulating substrate with or without metallisation connecting the wire to a bond pad of the item
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42Wire connectors; Manufacturing methods related thereto
    • H01L2224/47Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/481Disposition
    • H01L2224/48151Connecting 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
    • H01L2224/48221Connecting 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
    • H01L2224/48245Connecting 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
    • H01L2224/48247Connecting 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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/15Details of package parts other than the semiconductor or other solid state devices to be connected
    • H01L2924/151Die mounting substrate
    • H01L2924/153Connection portion
    • H01L2924/1531Connection portion the connection portion being formed only on the surface of the substrate opposite to the die mounting surface
    • H01L2924/15311Connection portion the connection portion being formed only on the surface of the substrate opposite to the die mounting surface being a ball array, e.g. BGA
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/15Details of package parts other than the semiconductor or other solid state devices to be connected
    • H01L2924/151Die mounting substrate
    • H01L2924/153Connection portion
    • H01L2924/1532Connection portion the connection portion being formed on the die mounting surface of the substrate
    • H01L2924/1533Connection portion the connection portion being formed on the die mounting surface of the substrate the connection portion being formed both on the die mounting surface of the substrate and outside the die mounting surface of the substrate
    • H01L2924/15331Connection portion the connection portion being formed on the die mounting surface of the substrate the connection portion being formed both on the die mounting surface of the substrate and outside the die mounting surface of the substrate being a ball array, e.g. BGA

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  • Structures Or Materials For Encapsulating Or Coating Semiconductor Devices Or Solid State Devices (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a semiconductor device that can be reduced in size. <P>SOLUTION: In the semiconductor device, electrodes formed on the bottom surface of the peripheral edge of an IC chip 4, and electrodes formed on the top surface of the peripheral edge of a wiring board 1, are connected to each other via conductive bumps 7a and 7b laminated upon another in two steps along the vertical direction. More specifically, the electrodes are respectively formed at spots, facing each other in the vertical direction on the top surface of the peripheral edge of the wiring board 1 and the bottom surface of the peripheral edge of the IC chip 4. Then the lower conductive bumps 7a are formed on the electrodes, formed on the top surface of the peripheral edge of the wiring board 1, and the upper conductive bumps 7b are formed on the conductive bumps 7a and are connected to the electrodes, formed on the bottom surface of the peripheral edge of the IC chip 4. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、半導体装置に関し、特に、複数のICチップが積層された構造を有する半導体装置に関する。   The present invention relates to a semiconductor device, and more particularly to a semiconductor device having a structure in which a plurality of IC chips are stacked.

従来の半導体装置は、配線基板と、ダイボンド樹脂を介して配線基板の上面上に配設された第1のICチップと、ダイボンド樹脂を介して第1のICチップの上面上に配設された第2のICチップとを備えている。配線基板の上面上に形成された電極と、第1のICチップの上面上に形成された電極とは、金ワイヤを介して互いに電気的に接続されている。同様に、配線基板の上面上に形成された電極と、第2のICチップの上面上に形成された電極とは、金ワイヤを介して互いに電気的に接続されている。   The conventional semiconductor device is provided on the upper surface of the first IC chip via the wiring board, the first IC chip provided on the upper surface of the wiring board via the die bond resin, and the die bond resin. And a second IC chip. The electrode formed on the upper surface of the wiring board and the electrode formed on the upper surface of the first IC chip are electrically connected to each other through a gold wire. Similarly, the electrode formed on the upper surface of the wiring board and the electrode formed on the upper surface of the second IC chip are electrically connected to each other through a gold wire.

なお、配線基板と、配線基板の上面上に配設されたICチップとを備える半導体装置に関する技術は、例えば下記特許文献1,2に開示されている。   In addition, the technique regarding a semiconductor device provided with a wiring board and the IC chip arrange | positioned on the upper surface of a wiring board is disclosed by the following patent documents 1, 2, for example.

特開2003−273148号公報JP 2003-273148 A 特開平8−31865号公報JP-A-8-31865

しかしながら、従来の半導体装置によると、配線基板上の電極と第1及び第2のICチップ上の電極とを金ワイヤを介して互いに接続する都合上、配線基板の上面積を第1及び第2のICチップの上面積よりも大きくし、平面視上第1及び第2のICチップの周縁よりも外側に、配線基板上の電極を形成する必要がある。その結果、配線基板の上面積が大きくなることに起因して、全体として半導体装置が大型化するという問題がある。   However, according to the conventional semiconductor device, the upper area of the wiring board is reduced for the convenience of connecting the electrodes on the wiring board and the electrodes on the first and second IC chips via gold wires. It is necessary to form an electrode on the wiring board outside the peripheral area of the first and second IC chips in plan view, and larger than the upper area of the IC chip. As a result, there is a problem that the overall size of the semiconductor device is increased due to an increase in the upper area of the wiring board.

本発明はかかる問題を解決するために成されたものであり、金ワイヤを介した電極同士の接続を回避することにより、装置の小型化を実現し得る半導体装置を得ることを目的とする。   The present invention has been made to solve such a problem, and an object of the present invention is to obtain a semiconductor device capable of realizing downsizing of the device by avoiding connection between electrodes via a gold wire.

第1の発明に係る半導体装置は、配線基板と、配線基板の上面上に配設された第1のICチップと、第1のICチップの上面上に配設された第2のICチップと、配線基板の上面上に形成された第1の電極と、第2のICチップの底面に形成された第2の電極とを備え、第1の電極と第2の電極とは、複数段に積層された導電性バンプを介して互いに接続されていることを特徴とする。   A semiconductor device according to a first aspect of the present invention is a wiring substrate, a first IC chip disposed on the upper surface of the wiring substrate, a second IC chip disposed on the upper surface of the first IC chip, A first electrode formed on the upper surface of the wiring board and a second electrode formed on the bottom surface of the second IC chip, wherein the first electrode and the second electrode are in a plurality of stages. They are connected to each other via laminated conductive bumps.

第2の発明に係る半導体装置は、配線基板と、配線基板の上面上に配設された第1のICチップと、第1のICチップの上面上に配設された第2のICチップと、第2のICチップの上面上に配設された第3のICチップと、第1のICチップの前記上面上に形成された第1の電極と、第3のICチップの底面に形成された第2の電極とを備え、第1の電極と第2の電極とは、複数段に積層された導電性バンプを介して互いに接続されていることを特徴とする。   A semiconductor device according to a second aspect of the present invention is a wiring substrate, a first IC chip disposed on the upper surface of the wiring substrate, a second IC chip disposed on the upper surface of the first IC chip, A third IC chip disposed on the top surface of the second IC chip; a first electrode formed on the top surface of the first IC chip; and a bottom surface of the third IC chip. The first electrode and the second electrode are connected to each other through conductive bumps stacked in a plurality of stages.

第3の発明に係る半導体装置は、配線基板と、配線基板の上面上に配設された第1のICチップと、配線基板の上面に形成された電極と、電極上に複数段に積層された導電性バンプと、第1のICチップを覆って配線基板の上面上に形成された封止材とを備え、封止材の上面内には、最上段の導電性バンプが露出していることを特徴とする。   A semiconductor device according to a third invention is laminated in a plurality of stages on a wiring board, a first IC chip disposed on the upper surface of the wiring board, an electrode formed on the upper surface of the wiring board, and the electrode. Conductive bumps and a sealing material that covers the first IC chip and is formed on the upper surface of the wiring substrate, and the uppermost conductive bumps are exposed in the upper surface of the sealing material. It is characterized by that.

第1〜第3の発明によれば、半導体装置の小型化を図ることができる。   According to the first to third inventions, the semiconductor device can be reduced in size.

実施の形態1.
図1は、本発明の実施の形態1に係る半導体装置の構造を示す断面図である。図1に示すように本実施の形態1に係る半導体装置は、配線基板1と、配線基板1の上面上に配設されたICチップ3と、ICチップ3の上面上に配設されたICチップ4とを備えている。ICチップ3の上面積は、配線基板1及びICチップ4の各上面積よりも小さい。配線基板1の上面積は、ICチップ4の上面積とほぼ同一である。
Embodiment 1 FIG.
FIG. 1 is a cross-sectional view showing the structure of the semiconductor device according to the first embodiment of the present invention. As shown in FIG. 1, the semiconductor device according to the first embodiment includes a wiring substrate 1, an IC chip 3 disposed on the upper surface of the wiring substrate 1, and an IC disposed on the upper surface of the IC chip 3. Chip 4. The upper area of the IC chip 3 is smaller than the upper areas of the wiring substrate 1 and the IC chip 4. The upper area of the wiring substrate 1 is substantially the same as the upper area of the IC chip 4.

配線基板1の底面には、半田バンプ等の導電性バンプ2が形成されている。導電性バンプ2は、「アウターボール」とも称される。配線基板1の上面上には、所定の配線パターン及び電極が形成されている。ICチップ3の底面に形成された電極と、配線基板1の非周縁部の上面上に形成された電極とは、導電性バンプ5を介して互いに接続されている。導電性バンプ5は、「インナーバンプ」とも称される。ICチップ4は、ダイボンド樹脂6を介してICチップ3の上面上に配設されている。   Conductive bumps 2 such as solder bumps are formed on the bottom surface of the wiring board 1. The conductive bumps 2 are also referred to as “outer balls”. On the upper surface of the wiring substrate 1, predetermined wiring patterns and electrodes are formed. The electrodes formed on the bottom surface of the IC chip 3 and the electrodes formed on the top surface of the non-peripheral portion of the wiring substrate 1 are connected to each other through the conductive bumps 5. The conductive bumps 5 are also referred to as “inner bumps”. The IC chip 4 is disposed on the upper surface of the IC chip 3 via a die bond resin 6.

ICチップ4の周縁部の底面に形成された電極と、配線基板1の周縁部の上面上に形成された電極とは、配線基板1の上面の法線方向(以下「垂直方向」と称する)に沿って2段に積層された導電性バンプ7a,7bを介して、互いに接続されている。具体的には、配線基板1の周縁部の上面上及びICチップ4の周縁部の底面には、垂直方向に関して互いに対向する箇所に電極がそれぞれ形成されている。そして、配線基板1の周縁部の上面上に形成された電極上に下段の導電性バンプ7aが形成されており、導電性バンプ7a上に上段の導電性バンプ7bが形成されており、導電性バンプ7bはICチップ4の周縁部の底面に形成された電極に接続されている。上記の通りICチップ3の上面積は配線基板1及びICチップ4の各上面積よりも小さく、導電性バンプ7a,7bから成る積層構造は、ICチップ3の周縁よりも外側、かつ配線基板1及びICチップ4の各周縁よりも内側に形成されている。   The electrode formed on the bottom surface of the peripheral portion of the IC chip 4 and the electrode formed on the top surface of the peripheral portion of the wiring substrate 1 are in the normal direction of the upper surface of the wiring substrate 1 (hereinafter referred to as “vertical direction”). Are connected to each other through conductive bumps 7a and 7b which are stacked in two stages. Specifically, electrodes are formed on the upper surface of the peripheral portion of the wiring substrate 1 and on the bottom surface of the peripheral portion of the IC chip 4 at locations facing each other in the vertical direction. The lower conductive bump 7a is formed on the electrode formed on the upper surface of the peripheral edge of the wiring substrate 1, and the upper conductive bump 7b is formed on the conductive bump 7a. The bump 7 b is connected to an electrode formed on the bottom surface of the peripheral edge of the IC chip 4. As described above, the upper area of the IC chip 3 is smaller than the upper areas of the wiring substrate 1 and the IC chip 4, and the laminated structure including the conductive bumps 7 a and 7 b is outside the peripheral edge of the IC chip 3 and the wiring substrate 1. And it is formed inside each peripheral edge of the IC chip 4.

配線基板1の上面上には、ICチップ3,4及び導電性バンプ5,7a,7bを覆って、モールド樹脂等の封止材8が形成されている。   On the upper surface of the wiring board 1, a sealing material 8 such as a mold resin is formed so as to cover the IC chips 3 and 4 and the conductive bumps 5, 7a and 7b.

このように本実施の形態1に係る半導体装置によれば、ICチップ4の周縁部の底面に形成された電極と、配線基板1の周縁部の上面上に形成された電極とは、金ワイヤを介してではなく、垂直方向に沿って2段に積層された導電性バンプ7a,7bを介して互いに接続されている。よって、ICチップ4の周縁部に形成された電極に接続すべき配線基板1上の電極を、平面視上ICチップ4の周縁よりも外側に形成する必要がないため、配線基板1の上面積はICチップ4の上面積とほぼ同一で足りる。その結果、本実施の形態1に係る半導体装置によれば、従来の半導体装置と比較して配線基板1の上面積を削減できるため、全体として半導体装置の小型化を図ることができる。   As described above, according to the semiconductor device of the first embodiment, the electrode formed on the bottom surface of the peripheral portion of the IC chip 4 and the electrode formed on the top surface of the peripheral portion of the wiring substrate 1 are a gold wire. The conductive bumps 7a and 7b are stacked in two stages along the vertical direction, not through the two. Therefore, it is not necessary to form the electrode on the wiring board 1 to be connected to the electrode formed on the peripheral edge of the IC chip 4 outside the peripheral edge of the IC chip 4 in plan view. Is substantially the same as the upper area of the IC chip 4. As a result, according to the semiconductor device according to the first embodiment, the upper area of the wiring substrate 1 can be reduced as compared with the conventional semiconductor device, so that the semiconductor device can be downsized as a whole.

以下、本実施の形態1に係る半導体装置の変形例について説明する。これらの変形例によっても、上記と同様の効果を得ることができる。   Hereinafter, modifications of the semiconductor device according to the first embodiment will be described. These modifications can also provide the same effects as described above.

図2は、本実施の形態1の第1の変形例に係る半導体装置の構造を示す断面図である。図1に示したICチップ3,4の代わりに、ICチップ3,4よりも垂直方向に関する寸法(厚み)が大きいICチップ10,11が配設されている。ICチップ10の底面に形成された電極と、配線基板1の非周縁部の上面上に形成された電極とは、導電性バンプ12を介して互いに接続されている。ICチップ11は、ダイボンド樹脂13を介してICチップ10の上面上に配設されている。   FIG. 2 is a cross-sectional view showing the structure of the semiconductor device according to the first modification of the first embodiment. Instead of the IC chips 3 and 4 shown in FIG. 1, IC chips 10 and 11 having a dimension (thickness) larger in the vertical direction than the IC chips 3 and 4 are arranged. The electrodes formed on the bottom surface of the IC chip 10 and the electrodes formed on the top surface of the non-peripheral portion of the wiring substrate 1 are connected to each other through the conductive bumps 12. The IC chip 11 is disposed on the upper surface of the IC chip 10 via a die bond resin 13.

ICチップ11の周縁部の底面に形成された電極と、配線基板1の周縁部の上面上に形成された電極とは、垂直方向に沿って3段に積層された導電性バンプ14a〜14cを介して互いに接続されている。具体的には、配線基板1の周縁部の上面上及びICチップ11の周縁部の底面には、垂直方向に関して互いに対向する箇所に電極がそれぞれ形成されている。そして、配線基板1の周縁部の上面上に形成された電極上に下段の導電性バンプ14aが形成されており、導電性バンプ14a上に中段の導電性バンプ14bが形成されており、導電性バンプ14b上に上段の導電性バンプ14cが形成されており、導電性バンプ14cはICチップ11の周縁部の底面に形成された電極に接続されている。   The electrodes formed on the bottom surface of the peripheral portion of the IC chip 11 and the electrodes formed on the top surface of the peripheral portion of the wiring substrate 1 are formed by forming conductive bumps 14a to 14c stacked in three stages along the vertical direction. Are connected to each other. Specifically, electrodes are formed on the upper surface of the peripheral portion of the wiring substrate 1 and the bottom surface of the peripheral portion of the IC chip 11 at locations facing each other in the vertical direction. A lower conductive bump 14a is formed on the electrode formed on the upper surface of the peripheral edge of the wiring substrate 1, and a middle conductive bump 14b is formed on the conductive bump 14a. An upper conductive bump 14 c is formed on the bump 14 b, and the conductive bump 14 c is connected to an electrode formed on the bottom surface of the peripheral portion of the IC chip 11.

垂直方向に関するICチップ10の寸法がより大きい場合には、4段以上に積層された導電性バンプを介して、ICチップ11の周縁部の底面に形成された電極と、配線基板1の周縁部の上面上に形成された電極とを互いに接続してもよい。   When the dimension of the IC chip 10 in the vertical direction is larger, the electrode formed on the bottom surface of the peripheral part of the IC chip 11 and the peripheral part of the wiring substrate 1 through the conductive bumps stacked in four or more stages. The electrodes formed on the upper surface of each other may be connected to each other.

図3は、本実施の形態1の第2の変形例に係る半導体装置の構造を示す断面図である。ICチップ16は、ダイボンド樹脂18を介して配線基板1の上面上に配設されている。ICチップ17の非周縁部の底面に形成された電極と、ICチップ16の上面上に形成された電極とは、導電性バンプ19を介して互いに接続されている。   FIG. 3 is a cross-sectional view showing the structure of the semiconductor device according to the second modification of the first embodiment. The IC chip 16 is disposed on the upper surface of the wiring substrate 1 via a die bond resin 18. The electrodes formed on the bottom surface of the non-peripheral portion of the IC chip 17 and the electrodes formed on the top surface of the IC chip 16 are connected to each other through the conductive bumps 19.

ICチップ17の周縁部の底面に形成された電極と、配線基板1の周縁部の上面上に形成された電極とは、垂直方向に沿って2段に積層された導電性バンプ20a,20bを介して、互いに接続されている。具体的には、配線基板1の周縁部の上面上及びICチップ17の周縁部の底面には、垂直方向に関して互いに対向する箇所に電極がそれぞれ形成されている。そして、配線基板1の周縁部の上面上に形成された電極上に下段の導電性バンプ20aが形成されており、導電性バンプ20a上に上段の導電性バンプ20bが形成されており、導電性バンプ20bはICチップ17の周縁部の底面に形成された電極に接続されている。   The electrode formed on the bottom surface of the peripheral portion of the IC chip 17 and the electrode formed on the top surface of the peripheral portion of the wiring substrate 1 are formed by conductive bumps 20a and 20b stacked in two steps along the vertical direction. Are connected to each other. Specifically, electrodes are formed on the upper surface of the peripheral portion of the wiring board 1 and the bottom surface of the peripheral portion of the IC chip 17 at locations facing each other in the vertical direction. The lower conductive bump 20a is formed on the electrode formed on the upper surface of the peripheral edge of the wiring board 1, and the upper conductive bump 20b is formed on the conductive bump 20a. The bump 20b is connected to an electrode formed on the bottom surface of the peripheral portion of the IC chip 17.

図4は、本実施の形態1の第3の変形例に係る半導体装置の構造を示す断面図である。ICチップ22の底面に形成された電極と、配線基板1の非周縁部の上面上に形成された電極とは、導電性バンプ25を介して互いに接続されている。ICチップ23は、ダイボンド樹脂26を介してICチップ22の上面上に配設されている。ICチップ24の非周縁部の底面に形成された電極と、ICチップ23の上面上に形成された電極とは、導電性バンプ27を介して互いに接続されている。   FIG. 4 is a cross-sectional view showing the structure of the semiconductor device according to the third modification of the first embodiment. The electrode formed on the bottom surface of the IC chip 22 and the electrode formed on the top surface of the non-peripheral portion of the wiring substrate 1 are connected to each other through the conductive bump 25. The IC chip 23 is disposed on the upper surface of the IC chip 22 via a die bond resin 26. The electrodes formed on the bottom surface of the non-peripheral portion of the IC chip 24 and the electrodes formed on the upper surface of the IC chip 23 are connected to each other through the conductive bumps 27.

ICチップ24の周縁部の底面に形成された電極と、配線基板1の周縁部の上面上に形成された電極とは、垂直方向に沿って3段に積層された導電性バンプ28a〜28cを介して、互いに接続されている。具体的には、配線基板1の周縁部の上面上及びICチップ24の周縁部の底面には、垂直方向に関して互いに対向する箇所に電極がそれぞれ形成されている。そして、配線基板1の周縁部の上面上に形成された電極上に下段の導電性バンプ28aが形成されており、導電性バンプ28a上に中段の導電性バンプ28bが形成されており、導電性バンプ28b上に上段の導電性バンプ28cが形成されており、導電性バンプ28cはICチップ24の周縁部の底面に形成された電極に接続されている。   The electrodes formed on the bottom surface of the peripheral portion of the IC chip 24 and the electrodes formed on the top surface of the peripheral portion of the wiring substrate 1 are formed of conductive bumps 28a to 28c stacked in three stages along the vertical direction. Are connected to each other. Specifically, electrodes are formed on the upper surface of the peripheral portion of the wiring substrate 1 and the bottom surface of the peripheral portion of the IC chip 24 at locations facing each other in the vertical direction. A lower conductive bump 28a is formed on the electrode formed on the upper surface of the peripheral edge of the wiring board 1, and a middle conductive bump 28b is formed on the conductive bump 28a. An upper conductive bump 28 c is formed on the bump 28 b, and the conductive bump 28 c is connected to an electrode formed on the bottom surface of the peripheral portion of the IC chip 24.

ICチップ24と配線基板1との間に積層されているICチップの個数(図4に示した例では2個)がより多い場合には、4段以上に積層された導電性バンプを介して、ICチップ24の周縁部の底面に形成された電極と、配線基板1の周縁部の上面上に形成された電極とを互いに接続してもよい。   When the number of IC chips stacked between the IC chip 24 and the wiring substrate 1 is larger (two in the example shown in FIG. 4), the conductive bumps are stacked in four or more stages. The electrodes formed on the bottom surface of the peripheral portion of the IC chip 24 and the electrodes formed on the top surface of the peripheral portion of the wiring substrate 1 may be connected to each other.

実施の形態2.
図5は、本発明の実施の形態2に係る半導体装置の構造を示す断面図である。図2に示すように本実施の形態2に係る半導体装置は、配線基板1と、配線基板1の上面上に配設されたICチップ30と、ICチップ30の上面上に配設されたICチップ31と、ICチップ31の上面上に配設されたICチップ32とを備えている。ICチップ31の上面積は、配線基板1及びICチップ30,32の各上面積よりも小さい。配線基板1の上面積は、ICチップ30,32の上面積とほぼ同一である。
Embodiment 2. FIG.
FIG. 5 is a sectional view showing the structure of the semiconductor device according to the second embodiment of the present invention. As shown in FIG. 2, the semiconductor device according to the second embodiment includes a wiring substrate 1, an IC chip 30 disposed on the upper surface of the wiring substrate 1, and an IC disposed on the upper surface of the IC chip 30. A chip 31 and an IC chip 32 disposed on the upper surface of the IC chip 31 are provided. The upper area of the IC chip 31 is smaller than the upper areas of the wiring substrate 1 and the IC chips 30 and 32. The upper area of the wiring substrate 1 is substantially the same as the upper area of the IC chips 30 and 32.

ICチップ30の底面に形成された電極と、配線基板1の上面上に形成された電極とは、導電性バンプ33を介して互いに接続されている。ICチップ31は、ダイボンド樹脂34を介してICチップ30の上面上に配設されている。ICチップ32の非周縁部の底面に形成された電極と、ICチップ31の上面上に形成された電極とは、導電性バンプ35を介して互いに接続されている。   The electrodes formed on the bottom surface of the IC chip 30 and the electrodes formed on the top surface of the wiring substrate 1 are connected to each other through the conductive bumps 33. The IC chip 31 is disposed on the upper surface of the IC chip 30 via a die bond resin 34. The electrodes formed on the bottom surface of the non-peripheral portion of the IC chip 32 and the electrodes formed on the top surface of the IC chip 31 are connected to each other via the conductive bumps 35.

ICチップ32の周縁部の底面に形成された電極と、ICチップ30の周縁部の上面上に形成された電極とは、垂直方向に沿って2段に積層された導電性バンプ36a,36bを介して、互いに接続されている。具体的には、ICチップ30の周縁部の上面上及びICチップ32の周縁部の底面には、垂直方向に関して互いに対向する箇所に電極がそれぞれ形成されている。そして、ICチップ30の周縁部の上面上に形成された電極上に下段の導電性バンプ36aが形成されており、導電性バンプ36a上に上段の導電性バンプ36bが形成されており、導電性バンプ36bはICチップ32の周縁部の底面に形成された電極に接続されている。上記の通りICチップ31の上面積はICチップ30,32の各上面積よりも小さく、導電性バンプ36a,36bから成る積層構造は、ICチップ31の周縁よりも外側、かつICチップ30,32の各周縁よりも内側に形成されている。   The electrode formed on the bottom surface of the peripheral portion of the IC chip 32 and the electrode formed on the top surface of the peripheral portion of the IC chip 30 are formed by conductive bumps 36a and 36b stacked in two steps along the vertical direction. Are connected to each other. Specifically, electrodes are formed on the upper surface of the peripheral portion of the IC chip 30 and the bottom surface of the peripheral portion of the IC chip 32 at locations facing each other in the vertical direction. A lower conductive bump 36a is formed on the electrode formed on the upper surface of the peripheral edge of the IC chip 30, and an upper conductive bump 36b is formed on the conductive bump 36a. The bumps 36 b are connected to electrodes formed on the bottom surface of the peripheral edge of the IC chip 32. As described above, the upper area of the IC chip 31 is smaller than the upper areas of the IC chips 30 and 32, and the laminated structure including the conductive bumps 36 a and 36 b is outside the peripheral edge of the IC chip 31 and the IC chips 30 and 32. It is formed inside each peripheral edge.

配線基板1の上面上には、ICチップ30〜32及び導電性バンプ33,35,36a,36bを覆って、封止材8が形成されている。   On the upper surface of the wiring substrate 1, a sealing material 8 is formed so as to cover the IC chips 30 to 32 and the conductive bumps 33, 35, 36a, and 36b.

このように本実施の形態2に係る半導体装置によれば、ICチップ32の周縁部の底面に形成された電極と、ICチップ30の周縁部の上面上に形成された電極とは、垂直方向に沿って2段に積層された導電性バンプ36a,36bを介して互いに接続されている。よって、ICチップ32の周縁部の底面に形成された電極と、ICチップ30の周縁部の上面上に形成された電極とを金ワイヤによって互いに接続する場合とは異なり、ICチップ32の周縁部に形成された電極に接続すべきICチップ30上の電極を、平面視上ICチップ32の周縁よりも外側に形成する必要がないため、ICチップ30の上面積はICチップ32の上面積とほぼ同一で足りる。その結果、ICチップ30の上面積を削減できるため、全体として半導体装置の小型化を図ることができる。   As described above, according to the semiconductor device of the second embodiment, the electrodes formed on the bottom surface of the peripheral portion of the IC chip 32 and the electrodes formed on the top surface of the peripheral portion of the IC chip 30 are perpendicular to each other. Are connected to each other via conductive bumps 36a and 36b which are stacked in two stages. Therefore, unlike the case where the electrodes formed on the bottom surface of the peripheral portion of the IC chip 32 and the electrodes formed on the top surface of the peripheral portion of the IC chip 30 are connected to each other by a gold wire, the peripheral portion of the IC chip 32 It is not necessary to form the electrode on the IC chip 30 to be connected to the electrode formed on the outside of the peripheral edge of the IC chip 32 in plan view, so that the upper area of the IC chip 30 is the upper area of the IC chip 32. Almost the same. As a result, since the upper area of the IC chip 30 can be reduced, the semiconductor device can be downsized as a whole.

なお、ICチップ31の代わりに、垂直方向に関する寸法がICチップ31のそれよりも大きい他のICチップが配設される場合や、ICチップ30とICチップ32との間に複数個のICチップ31が積層される場合には、3段以上に積層された導電性バンプを介して、ICチップ32の周縁部の底面に形成された電極と、ICチップ30の周縁部の上面上に形成された電極とを互いに接続してもよい。   It should be noted that instead of the IC chip 31, another IC chip whose dimension in the vertical direction is larger than that of the IC chip 31 is disposed, or a plurality of IC chips are provided between the IC chip 30 and the IC chip 32. When 31 is laminated, the electrode is formed on the bottom surface of the peripheral portion of the IC chip 32 and the upper surface of the peripheral portion of the IC chip 30 through the conductive bumps stacked in three or more stages. The electrodes may be connected to each other.

実施の形態3.
本実施の形態3では、上記実施の形態1に係る半導体装置をカメラモジュールへ適用する例について説明する。
Embodiment 3 FIG.
In the third embodiment, an example in which the semiconductor device according to the first embodiment is applied to a camera module will be described.

図6は、本発明の実施の形態3に係る半導体装置の構造を示す断面図である。図6に示すように本実施の形態3に係る半導体装置は、上面に開口部49を有するケース40と、開口部49に嵌め込まれたレンズ51,52及びフィルタ50と、ケース40の底壁上に配設されたICチップ41と、ICチップ41の上面上に配設されたICチップ42と、ICチップ42の上面上に形成された受像部45とを備えている。ICチップ41,42及び受像部45は、ケース40内に配設されている。レンズ51,52及びフィルタ50は、受像部45の上方に配設されている。ICチップ41の上面積は、ケース40の底面積及びICチップ42の上面積よりも小さい。ケース40の底面積は、ICチップ42の上面積とほぼ同一である。ケース40の底壁の上面上には所定の配線パターン及び電極が形成されており、ケース40の底壁は配線基板として機能する。   FIG. 6 is a cross-sectional view showing the structure of the semiconductor device according to the third embodiment of the present invention. As shown in FIG. 6, the semiconductor device according to the third embodiment includes a case 40 having an opening 49 on the upper surface, lenses 51 and 52 and a filter 50 fitted in the opening 49, and a bottom wall of the case 40. An IC chip 41 disposed on the top surface of the IC chip 41, an IC chip 42 disposed on the top surface of the IC chip 41, and an image receiving portion 45 formed on the top surface of the IC chip 42. The IC chips 41 and 42 and the image receiving unit 45 are disposed in the case 40. The lenses 51 and 52 and the filter 50 are disposed above the image receiving unit 45. The top area of the IC chip 41 is smaller than the bottom area of the case 40 and the top area of the IC chip 42. The bottom area of the case 40 is substantially the same as the top area of the IC chip 42. A predetermined wiring pattern and electrodes are formed on the upper surface of the bottom wall of the case 40, and the bottom wall of the case 40 functions as a wiring board.

ICチップ41の底面に形成された電極と、ケース40の底壁の非周縁部の上面上に形成された電極とは、導電性バンプ43を介して互いに接続されている。ICチップ42は、ダイボンド樹脂44を介してICチップ41の上面上に配設されている。   The electrodes formed on the bottom surface of the IC chip 41 and the electrodes formed on the top surface of the non-peripheral portion of the bottom wall of the case 40 are connected to each other through the conductive bumps 43. The IC chip 42 is disposed on the upper surface of the IC chip 41 through a die bond resin 44.

ICチップ42の周縁部にはスルーホール46が形成されており、スルーホール46の内部は、電極として機能する金属膜48によって充填されている。金属膜48は、受像部45に電気的に接続されている。   A through hole 46 is formed at the peripheral edge of the IC chip 42, and the inside of the through hole 46 is filled with a metal film 48 that functions as an electrode. The metal film 48 is electrically connected to the image receiving unit 45.

金属膜48の底面と、ケース40の底壁の周縁部の上面上に形成された電極とは、垂直方向に沿って2段に積層された導電性バンプ47a,47bを介して、互いに接続されている。具体的には、ケース40の底壁の周縁部の上面上に形成された電極上に下段の導電性バンプ47aが形成されており、導電性バンプ47a上に上段の導電性バンプ47bが形成されており、導電性バンプ47bは金属膜48の底面に接続されている。上記の通りICチップ41の上面積はケース40の底面積及びICチップ42の上面積よりも小さく、導電性バンプ47a,47bから成る積層構造は、ICチップ41の周縁よりも外側、かつケース40の底壁及びICチップ42の各周縁よりも内側に形成されている。   The bottom surface of the metal film 48 and the electrode formed on the top surface of the peripheral edge of the bottom wall of the case 40 are connected to each other via conductive bumps 47a and 47b stacked in two steps along the vertical direction. ing. Specifically, the lower conductive bump 47a is formed on the electrode formed on the upper surface of the peripheral edge of the bottom wall of the case 40, and the upper conductive bump 47b is formed on the conductive bump 47a. The conductive bumps 47 b are connected to the bottom surface of the metal film 48. As described above, the top area of the IC chip 41 is smaller than the bottom area of the case 40 and the top area of the IC chip 42, and the laminated structure including the conductive bumps 47 a and 47 b is outside the peripheral edge of the IC chip 41 and the case 40. Are formed on the inner side of the bottom wall and the peripheral edges of the IC chip 42.

このように本実施の形態3に係る半導体装置によれば、ICチップ42の周縁部に形成された金属膜48と、ケース40の底壁の周縁部の上面上に形成された電極とは、垂直方向に沿って2段に積層された導電性バンプ47a,47bを介して互いに接続されている。よって、金属膜48と、ケース40の底壁の周縁部の上面上に形成された電極とを金ワイヤによって互いに接続する場合とは異なり、金属膜48に接続すべきケース40の底壁上の電極を、平面視上ICチップ42の周縁よりも外側に形成する必要がないため、ケース40の底面積はICチップ42の上面積とほぼ同一で足りる。その結果、ケース40の底面積を削減できるため、全体として半導体装置の小型化を図ることができる。   Thus, according to the semiconductor device according to the third embodiment, the metal film 48 formed on the peripheral portion of the IC chip 42 and the electrode formed on the upper surface of the peripheral portion of the bottom wall of the case 40 are: They are connected to each other through conductive bumps 47a and 47b stacked in two steps along the vertical direction. Therefore, unlike the case where the metal film 48 and the electrode formed on the upper surface of the peripheral edge of the bottom wall of the case 40 are connected to each other by a gold wire, the metal film 48 is on the bottom wall of the case 40 to be connected to the metal film 48. Since the electrodes do not need to be formed outside the peripheral edge of the IC chip 42 in plan view, the bottom area of the case 40 is almost the same as the top area of the IC chip 42. As a result, since the bottom area of the case 40 can be reduced, the semiconductor device can be downsized as a whole.

なお、ICチップ41の代わりに、垂直方向に関する寸法がICチップ41のそれよりも大きい他のICチップが配設される場合や、ICチップ42とケース40の底壁との間に複数個のICチップ41が積層される場合には、3段以上に積層された導電性バンプを介して、金属膜48と、ケース40の底壁の周縁部の上面上に形成された電極とを互いに接続してもよい。   Instead of the IC chip 41, a case where another IC chip having a dimension in the vertical direction larger than that of the IC chip 41 is disposed, or a plurality of IC chips 42 and the bottom wall of the case 40 are disposed. When the IC chip 41 is stacked, the metal film 48 and the electrode formed on the upper surface of the peripheral edge of the bottom wall of the case 40 are connected to each other through conductive bumps stacked in three or more stages. May be.

実施の形態4.
図7は、本発明の実施の形態4に係るICパッケージ59の構造を示す断面図である。図7に示すようにICパッケージ59は、配線基板1と、配線基板1の上面上に配設されたICチップ55と、配線基板1の周辺部の上面上に形成された電極上に複数段に積層された導電性バンプ57a,57bと、ICチップ55を覆って配線基板1の上面上に形成された封止材58とを備えている。
Embodiment 4 FIG.
FIG. 7 is a cross-sectional view showing the structure of an IC package 59 according to Embodiment 4 of the present invention. As shown in FIG. 7, the IC package 59 has a plurality of stages on the wiring substrate 1, the IC chip 55 disposed on the upper surface of the wiring substrate 1, and the electrodes formed on the upper surface of the peripheral portion of the wiring substrate 1. The conductive bumps 57a and 57b are stacked on each other, and the sealing material 58 is formed on the upper surface of the wiring board 1 so as to cover the IC chip 55.

ICチップ55の上面積は、配線基板1の上面積よりも小さい。ICチップ55の底面に形成された電極と、配線基板1の非周縁部の上面上に形成された電極とは、導電性バンプ56を介して互いに接続されている。配線基板1の周縁部の上面上に形成された電極上には下段の導電性バンプ57aが形成されており、導電性バンプ57a上には上段の導電性バンプ57bが形成されている。封止材58の上面内には導電性バンプ57bの上部が露出しており、導電性バンプ57bの上部は電極として機能する。上記の通りICチップ55の上面積は配線基板1の上面積よりも小さく、導電性バンプ57a,57bから成る積層構造は、ICチップ55の周縁よりも外側、かつ配線基板1の周縁よりも内側に形成されている。   The upper area of the IC chip 55 is smaller than the upper area of the wiring board 1. The electrodes formed on the bottom surface of the IC chip 55 and the electrodes formed on the top surface of the non-peripheral portion of the wiring substrate 1 are connected to each other through the conductive bumps 56. A lower conductive bump 57a is formed on the electrode formed on the upper surface of the peripheral edge of the wiring substrate 1, and an upper conductive bump 57b is formed on the conductive bump 57a. The upper portion of the conductive bump 57b is exposed in the upper surface of the sealing material 58, and the upper portion of the conductive bump 57b functions as an electrode. As described above, the upper area of the IC chip 55 is smaller than the upper area of the wiring substrate 1, and the laminated structure composed of the conductive bumps 57 a and 57 b is outside the periphery of the IC chip 55 and inside the periphery of the wiring substrate 1. Is formed.

なお、ICチップ55の代わりに、垂直方向に関する寸法がICチップ55のそれよりも大きい他のICチップが配設される場合や、ICチップ55と配線基板1との間に1個又は複数個の他のICチップが配設される場合には、配線基板1の周縁部の上面上に形成された電極上に、3段以上に積層された導電性バンプを形成してもよい。この場合、最上段の導電性バンプの上部が、封止材58の上面内に露出して電極として機能する。   In addition, instead of the IC chip 55, another IC chip having a dimension in the vertical direction larger than that of the IC chip 55 is disposed, or one or a plurality of IC chips are provided between the IC chip 55 and the wiring substrate 1. When another IC chip is provided, conductive bumps laminated in three or more stages may be formed on the electrode formed on the upper surface of the peripheral portion of the wiring substrate 1. In this case, the upper part of the uppermost conductive bump is exposed in the upper surface of the sealing material 58 and functions as an electrode.

このように本実施の形態4に係る半導体装置によれば、配線基板1の周縁部の上面上に形成された電極上には、垂直方向に沿って2段に積層された導電性バンプ57a,57bが形成されている。そして、上段の導電性バンプ57bの上部は、封止材58の上面内に露出して電極として機能する。従って、導電性バンプ57a,57bを介して配線基板1及びICチップ55との電気的接続を確保しつつ、他のICパッケージをICパッケージ59上に積層することができ、それによって機能を拡張することができる。   Thus, according to the semiconductor device according to the fourth embodiment, the conductive bumps 57a, which are stacked in two steps along the vertical direction on the electrode formed on the upper surface of the peripheral portion of the wiring board 1, 57b is formed. The upper portion of the upper conductive bump 57b is exposed in the upper surface of the sealing material 58 and functions as an electrode. Therefore, another IC package can be stacked on the IC package 59 while ensuring electrical connection with the wiring substrate 1 and the IC chip 55 via the conductive bumps 57a and 57b, thereby expanding the function. be able to.

図8は、図7に示したICパッケージ59上に他のICパッケージ60が積層された構造の第1の例を示す断面図である。ICパッケージ60は、BGA(Ball Grid Array)パッケージ又はLGA(Land Grid Array)パッケージである。ICパッケージ60は、配線基板61と、配線基板61の上面上に配設されたICチップ63と、ICチップ63と配線基板61とを電気的に接続するためのAuワイヤ64と、ICチップ63を覆って配線基板61の上面上に形成された封止材65と、配線基板61の底面に形成されたボール状又はランド状の金属端子62とを備えている。金属端子62と導電性バンプ57bとが互いに接合されている。ICチップ63は、Auワイヤ64、配線基板61、及び金属端子62を介して、導電性バンプ57bに電気的に接続されている。   FIG. 8 is a cross-sectional view showing a first example of a structure in which another IC package 60 is stacked on the IC package 59 shown in FIG. The IC package 60 is a BGA (Ball Grid Array) package or an LGA (Land Grid Array) package. The IC package 60 includes a wiring board 61, an IC chip 63 disposed on the upper surface of the wiring board 61, an Au wire 64 for electrically connecting the IC chip 63 and the wiring board 61, and the IC chip 63. And a ball-shaped or land-shaped metal terminal 62 formed on the bottom surface of the wiring board 61. The metal terminal 62 and the conductive bump 57b are joined to each other. The IC chip 63 is electrically connected to the conductive bump 57 b through the Au wire 64, the wiring substrate 61, and the metal terminal 62.

図9は、図7に示したICパッケージ59上に他のICパッケージ70が積層された構造の第2の例を示す断面図である。ICパッケージ70は、SOP(Small Outline Package)又はQFP(Quad Flat Package)である。ICパッケージ70は、ダイパッド71上に配設されたICチップ72と、ガルウイング状の外部リード74と、ICチップ72と外部リード74とを電気的に接続するためのAuワイヤ73と、ICチップ72を覆って形成された封止材75とを備えている。外部リード74と導電性バンプ57bとが互いに接合されている。ICチップ72は、Auワイヤ73及び外部リード74を介して、導電性バンプ57bに電気的に接続されている。   FIG. 9 is a cross-sectional view showing a second example of a structure in which another IC package 70 is stacked on the IC package 59 shown in FIG. The IC package 70 is a SOP (Small Outline Package) or a QFP (Quad Flat Package). The IC package 70 includes an IC chip 72 disposed on the die pad 71, a gull wing-shaped external lead 74, an Au wire 73 for electrically connecting the IC chip 72 and the external lead 74, and the IC chip 72. And a sealing material 75 formed so as to cover the surface. The external lead 74 and the conductive bump 57b are joined to each other. The IC chip 72 is electrically connected to the conductive bumps 57b through the Au wires 73 and the external leads 74.

図10は、図7に示したICパッケージ59上に他のICパッケージ80が積層された構造の第3の例を示す断面図である。ICパッケージ80は、DIP(Dual Inline Package)又はPGA(Pin Grid Array)パッケージである。ICパッケージ80は、ダイパッド71上に配設されたICチップ72と、ピン状の外部リード81と、ICチップ72と外部リード81とを電気的に接続するためのAuワイヤ73と、ICチップ72を覆って形成された封止材75とを備えている。外部リード81と導電性バンプ57bとが互いに接合されている。ICチップ72は、Auワイヤ73及び外部リード81を介して、導電性バンプ57bに電気的に接続されている。   FIG. 10 is a cross-sectional view showing a third example of a structure in which another IC package 80 is stacked on the IC package 59 shown in FIG. The IC package 80 is a DIP (Dual Inline Package) or PGA (Pin Grid Array) package. The IC package 80 includes an IC chip 72 disposed on the die pad 71, a pin-shaped external lead 81, an Au wire 73 for electrically connecting the IC chip 72 and the external lead 81, and the IC chip 72. And a sealing material 75 formed so as to cover the surface. The external lead 81 and the conductive bump 57b are joined to each other. The IC chip 72 is electrically connected to the conductive bumps 57 b via the Au wires 73 and the external leads 81.

本発明の実施の形態1に係る半導体装置の構造を示す断面図である。It is sectional drawing which shows the structure of the semiconductor device which concerns on Embodiment 1 of this invention. 本発明の実施の形態1の第1の変形例に係る半導体装置の構造を示す断面図である。It is sectional drawing which shows the structure of the semiconductor device which concerns on the 1st modification of Embodiment 1 of this invention. 本発明の実施の形態1の第2の変形例に係る半導体装置の構造を示す断面図である。It is sectional drawing which shows the structure of the semiconductor device which concerns on the 2nd modification of Embodiment 1 of this invention. 本発明の実施の形態1の第3の変形例に係る半導体装置の構造を示す断面図である。It is sectional drawing which shows the structure of the semiconductor device which concerns on the 3rd modification of Embodiment 1 of this invention. 本発明の実施の形態2に係る半導体装置の構造を示す断面図である。It is sectional drawing which shows the structure of the semiconductor device which concerns on Embodiment 2 of this invention. 本発明の実施の形態3に係る半導体装置の構造を示す断面図である。It is sectional drawing which shows the structure of the semiconductor device which concerns on Embodiment 3 of this invention. 本発明の実施の形態4に係るICパッケージの構造を示す断面図である。It is sectional drawing which shows the structure of the IC package which concerns on Embodiment 4 of this invention. 図7に示したICパッケージ上に他のICパッケージが積層された構造の第1の例を示す断面図である。FIG. 8 is a cross-sectional view illustrating a first example of a structure in which another IC package is stacked on the IC package illustrated in FIG. 7. 図7に示したICパッケージ上に他のICパッケージが積層された構造の第2の例を示す断面図である。FIG. 8 is a cross-sectional view showing a second example of a structure in which another IC package is stacked on the IC package shown in FIG. 7. 図7に示したICパッケージ上に他のICパッケージが積層された構造の第3の例を示す断面図である。FIG. 8 is a cross-sectional view showing a third example of a structure in which another IC package is stacked on the IC package shown in FIG. 7.

符号の説明Explanation of symbols

1 配線基板、3,4,10,11,16,17,22〜24,30〜32,41,42,55,63,72 ICチップ、7a,7b,14a〜14c,20a,20b,28a〜28c,36a,36b,47a,47b,57a,57b 導電性バンプ、8,58 封止材、45 受像部、51,52 レンズ。
1 Wiring board 3, 4, 10, 11, 16, 17, 22-24, 30-32, 41, 42, 55, 63, 72 IC chip, 7a, 7b, 14a-14c, 20a, 20b, 28a- 28c, 36a, 36b, 47a, 47b, 57a, 57b Conductive bumps, 8, 58 Sealing material, 45 Image receiving portion, 51, 52 Lens.

Claims (5)

配線基板と、
前記配線基板の上面上に配設された第1のICチップと、
前記第1のICチップの上面上に配設された第2のICチップと、
前記配線基板の前記上面上に形成された第1の電極と、
前記第2のICチップの底面に形成された第2の電極と
を備え、
前記第1の電極と前記第2の電極とは、複数段に積層された導電性バンプを介して互いに接続されている、半導体装置。
A wiring board;
A first IC chip disposed on an upper surface of the wiring board;
A second IC chip disposed on an upper surface of the first IC chip;
A first electrode formed on the upper surface of the wiring board;
A second electrode formed on the bottom surface of the second IC chip,
The semiconductor device, wherein the first electrode and the second electrode are connected to each other through conductive bumps stacked in a plurality of stages.
前記第2のICチップの前記上面上に形成された受像部と、
前記受像部の上方に配設されたレンズと
をさらに備える、請求項1に記載の半導体装置。
An image receiving portion formed on the upper surface of the second IC chip;
The semiconductor device according to claim 1, further comprising a lens disposed above the image receiving unit.
配線基板と、
前記配線基板の上面上に配設された第1のICチップと、
前記第1のICチップの上面上に配設された第2のICチップと、
前記第2のICチップの上面上に配設された第3のICチップと、
前記第1のICチップの前記上面上に形成された第1の電極と、
前記第3のICチップの底面に形成された第2の電極と
を備え、
前記第1の電極と前記第2の電極とは、複数段に積層された導電性バンプを介して互いに接続されている、半導体装置。
A wiring board;
A first IC chip disposed on an upper surface of the wiring board;
A second IC chip disposed on an upper surface of the first IC chip;
A third IC chip disposed on the upper surface of the second IC chip;
A first electrode formed on the upper surface of the first IC chip;
A second electrode formed on the bottom surface of the third IC chip,
The semiconductor device, wherein the first electrode and the second electrode are connected to each other through conductive bumps stacked in a plurality of stages.
配線基板と、
前記配線基板の上面上に配設された第1のICチップと、
前記配線基板の前記上面に形成された電極と、
前記電極上に複数段に積層された導電性バンプと、
前記第1のICチップを覆って前記配線基板の前記上面上に形成された封止材と
を備え、
前記封止材の上面内には、最上段の前記導電性バンプが露出している、半導体装置。
A wiring board;
A first IC chip disposed on an upper surface of the wiring board;
An electrode formed on the upper surface of the wiring board;
Conductive bumps laminated in a plurality of stages on the electrode;
A sealing material that covers the first IC chip and is formed on the upper surface of the wiring board;
The uppermost conductive bump is exposed in the upper surface of the sealing material.
前記封止材の前記上面上に配設された第2のICチップをさらに備え、
前記第2のICチップは、前記最上段の前記導電性バンプに電気的に接続されている、請求項4に記載の半導体装置。
A second IC chip disposed on the upper surface of the sealing material;
The semiconductor device according to claim 4, wherein the second IC chip is electrically connected to the uppermost conductive bump.
JP2004266307A 2004-09-14 2004-09-14 Semiconductor device Pending JP2006086150A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008159607A (en) * 2006-12-20 2008-07-10 Fujitsu Ltd Semiconductor device, and its manufacturing method
US7952181B2 (en) 2007-03-23 2011-05-31 Kabushiki Kaisha Toshiba Wiring substrate for a multi-chip semiconductor device
JP2014082365A (en) * 2012-10-17 2014-05-08 Canon Inc Semiconductor device
CN104485292A (en) * 2014-12-10 2015-04-01 华进半导体封装先导技术研发中心有限公司 Method for overlapping small-distance embosses and PoP by bonding overlapped lug bosses on substrate by using lead wires
CN107039369A (en) * 2015-01-23 2017-08-11 三星半导体(中国)研究开发有限公司 Encapsulation includes the encapsulation stacking structure and its manufacture method of the encapsulation

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008159607A (en) * 2006-12-20 2008-07-10 Fujitsu Ltd Semiconductor device, and its manufacturing method
US7952181B2 (en) 2007-03-23 2011-05-31 Kabushiki Kaisha Toshiba Wiring substrate for a multi-chip semiconductor device
US8164189B2 (en) 2007-03-23 2012-04-24 Kabushiki Kaisha Toshiba Multi-chip semiconductor device
JP2014082365A (en) * 2012-10-17 2014-05-08 Canon Inc Semiconductor device
CN104485292A (en) * 2014-12-10 2015-04-01 华进半导体封装先导技术研发中心有限公司 Method for overlapping small-distance embosses and PoP by bonding overlapped lug bosses on substrate by using lead wires
CN107039369A (en) * 2015-01-23 2017-08-11 三星半导体(中国)研究开发有限公司 Encapsulation includes the encapsulation stacking structure and its manufacture method of the encapsulation

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