[go: up one dir, main page]

JP2014175557A - Package for housing semiconductor imaging element - Google Patents

Package for housing semiconductor imaging element Download PDF

Info

Publication number
JP2014175557A
JP2014175557A JP2013048565A JP2013048565A JP2014175557A JP 2014175557 A JP2014175557 A JP 2014175557A JP 2013048565 A JP2013048565 A JP 2013048565A JP 2013048565 A JP2013048565 A JP 2013048565A JP 2014175557 A JP2014175557 A JP 2014175557A
Authority
JP
Japan
Prior art keywords
package
semiconductor image
image pickup
pickup device
frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2013048565A
Other languages
Japanese (ja)
Inventor
Eiji Takahashi
英二 高橋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel and Sumikin Electronics Devices Inc
Original Assignee
Nippon Steel and Sumikin Electronics Devices Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Steel and Sumikin Electronics Devices Inc filed Critical Nippon Steel and Sumikin Electronics Devices Inc
Priority to JP2013048565A priority Critical patent/JP2014175557A/en
Publication of JP2014175557A publication Critical patent/JP2014175557A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Solid State Image Pick-Up Elements (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a package for housing a semiconductor imaging element consisting of an inexpensive structure of excellent heat dissipation ensuring airtight reliability by using a lid composed of quartz.SOLUTION: A package 10 for housing a semiconductor imaging element includes a planar substrate 11 composed of alumina ceramic, a frame 14 like a window frame provided above the outer periphery thereof and composed of forsterite ceramic or filler plastic with an outer shape of dimensions equivalent to those of the substrate 11 forming a cavity 13 for housing a semiconductor imaging element 12, a plurality of external connection lead terminals 17 composed of Fe-Ni-based alloy or Cu and being bonded between the substrate 11 and the frame 14 with a thermosetting resin bonding material 16 interposed therebetween, and a planar lid 15 composed of quartz and bonded to the upper surface of the frame 14 with a photocurable resin bonding material 18 interposed therebetween, after the semiconductor imaging element 12 is housed in the cavity 13.

Description

本発明は、それぞれの部位で有用な特性を発揮できる様々な絶縁性部材と、外部と電気的に導通状態とするために導電性部材で構成される半導体撮像素子収納用パッケージに関し、より詳細には、CCD(Charge Coupled Device)型や、MOS(Metal Oxide Semiconductor)型等の半導体撮像素子をキャビティ部に収納し、蓋体で中空状態に気密に封止した後、外部接続リード端子を介して外部と電気的に導通状態とするための半導体撮像素子収納用パッケージに関する。   The present invention relates to various insulating members capable of exhibiting useful characteristics in respective parts, and a package for housing a semiconductor image pickup device composed of conductive members for electrical connection with the outside. A CCD (Charge Coupled Device) type or MOS (Metal Oxide Semiconductor) type semiconductor image sensor is housed in a cavity, and is sealed in a hollow state with a lid, and then is connected via an external connection lead terminal. The present invention relates to a package for housing a semiconductor image sensor for making it electrically conductive with the outside.

従来から、半導体撮像素子は、撮像光を直接関知できる素子であって、感知した光信号を電気信号に変換させることができるようになっている。このような半導体撮像素子を収納するための半導体撮像素子収納用パッケージは、半導体撮像素子からの発熱を速やかに放熱させるために、熱伝導率が比較的高いアルミナセラミックからなる平板形状の基体を用いている。また、半導体撮像素子収納用パッケージは、半導体撮像素子を収納して蓋体を接合させて高い気密信頼性を確保するために、蓋体との線熱膨張係数を近似させたアルミナセラミックからなる窓枠形状の枠体を用いている。そして、半導体撮像素子収納用パッケージは、基体と、枠体との間にFe−Ni系合金からなる外部接続リード端子を低融点ガラスで挟み込むように接合して形成している。更に、半導体撮像素子収納用パッケージには、外部に露出する外部接続リード端子の表面にNiめっき被膜と、この上面にAuめっき被膜を施している。そして、この半導体撮像素子収納用パッケージには、基体と枠体で形成されるキャビティ部にCCD型や、MOS型等の半導体撮像素子を搭載し、この半導体撮像素子に設けられているボンディングパッドと、キャビティ部内に突出する外部接続リード端子との間をボンディングワイヤで接続している。更に、この半導体撮像素子収納用パッケージには、透光性のあるガラス板や、サファイア板からなる蓋体を枠体の上面に接合させることで半導体撮像素子をキャビティ部内に気密封止している。   2. Description of the Related Art Conventionally, a semiconductor image sensor is an element that can directly detect imaging light and can convert a sensed optical signal into an electrical signal. A package for housing a semiconductor image pickup device for storing such a semiconductor image pickup device uses a flat substrate made of alumina ceramic having a relatively high thermal conductivity in order to quickly dissipate heat generated from the semiconductor image pickup device. ing. Further, the package for housing the semiconductor image pickup device is a window made of alumina ceramic that approximates the linear thermal expansion coefficient with the cover in order to store the semiconductor image pickup device and join the cover to ensure high hermetic reliability. A frame-shaped frame is used. The semiconductor image pickup device storage package is formed by joining an external connection lead terminal made of an Fe—Ni alloy between a base and a frame so as to be sandwiched between low melting point glasses. Further, in the package for housing the semiconductor image pickup device, a Ni plating film is applied to the surface of the external connection lead terminal exposed to the outside, and an Au plating film is applied to this upper surface. In this semiconductor image pickup device storage package, a CCD or MOS type semiconductor image pickup device is mounted in a cavity formed by a base and a frame, and a bonding pad provided on the semiconductor image pickup device and The external connection lead terminal protruding into the cavity is connected with a bonding wire. Further, in this semiconductor image pickup device storage package, the semiconductor image pickup device is hermetically sealed in the cavity portion by bonding a transparent glass plate or a lid made of a sapphire plate to the upper surface of the frame. .

半導体撮像素子が実装された半導体撮像素子収納用パッケージは、外部の回路基板との接続を、パッケージの外部に突出する外部接続リード端子を回路基板に半田で接合させて行い、更に、この回路基板を装置に組み込んでいる。そして、装置に組み込まれた半導体撮像素子収納用パッケージは、透光性のある蓋体を介して外部から半導体撮像素子に取り込まれた撮像光を電気信号に変換させ、回路基板を介して装置へ伝送している。このような半導体撮像素子収納用パッケージにおいては、撮像光を安定して取り込めると共に、電気信号を安定して高速に伝送できるようにすることが求められ、且つ安価に製造できる構造とする必要があった。   A package for housing a semiconductor image pickup device on which a semiconductor image pickup device is mounted is connected to an external circuit board by soldering external connection lead terminals protruding outside the package to the circuit board. Is built into the device. Then, the package for housing the semiconductor image sensor incorporated in the device converts the imaging light taken into the semiconductor image sensor from the outside through a translucent lid into an electrical signal, and sends it to the device via the circuit board. Is transmitting. Such a package for housing a semiconductor image pickup element is required to have a structure that can stably capture image pickup light and stably transmit an electric signal at high speed and can be manufactured at low cost. It was.

従来の半導体撮像素子収納用パッケージは、蓋体に透光性のあるガラス板や、サファイア板を使用する場合には、ガラス板の線熱膨張係数(7.0×10−6/℃程度)や、サファイア板の線熱膨張係数(5.3×10−6/℃程度)が、アルミナセラミックからなる窓枠形状の枠体の線熱膨張係数(6.6×10−6/℃程度)と近似することから、光硬化型樹脂接着材で接合させた後の温度サイクル等の試験における気密信頼性の問題が発生することはない。しかしながら、ガラス板は、光の反射、透過、吸収の発生を緩和させて、半導体撮像素子への光の到達効率を向上させるために、高度な技術を要する膜形成が必要となり、半導体撮像素子収納用パッケージが高価なものとなっている。また、サファイア板は、光の到達効率を向上のための処置を必要としないものの、これ自体が非常に高価であり、半導体撮像素子収納用パッケージが高価なものとなっている。そこで、半導体撮像素子収納用パッケージには、比較的安価で、特段の光の到達効率を向上のための処置を必要としない水晶からなる平板状の蓋体を用いることが期待されている。 When a conventional semiconductor image pickup device storage package uses a transparent glass plate or sapphire plate for the lid, the linear thermal expansion coefficient of the glass plate (about 7.0 × 10 −6 / ° C.) In addition, the linear thermal expansion coefficient of the sapphire plate (about 5.3 × 10 −6 / ° C.) is the linear thermal expansion coefficient (about 6.6 × 10 −6 / ° C.) of the window frame-shaped frame made of alumina ceramic. Therefore, the problem of airtight reliability in a test such as a temperature cycle after joining with a photo-curing resin adhesive does not occur. However, a glass plate requires film formation that requires advanced technology in order to reduce the occurrence of reflection, transmission, and absorption of light and improve the light arrival efficiency to the semiconductor image sensor. The package is expensive. Further, although the sapphire plate does not require a measure for improving the light arrival efficiency, it itself is very expensive, and the semiconductor image pickup device storage package is expensive. Therefore, it is expected that the semiconductor image pickup device storage package is a flat lid made of crystal that is relatively inexpensive and does not require any special measures for improving the light arrival efficiency.

従来の半導体撮像素子収納用パッケージには、上面の中央部に撮像素子の搭載部が形成された四角平板状の絶縁体からなる基板と、この基板の上面の外周部に取着された金属からなる複数のリード端子と、この複数のリード端子を介して基板の上面の外周部の全周にわたって接合材を介して接合された枠体と、枠体の上面に枠体の内側を塞ぐように接着された水晶板とを具備した撮像素子収納用パッケージにおいて、枠体および基板を線線熱膨張係数が8×10−6/℃乃至10×10−6/℃である絶縁体で構成し、枠体を基板の側面よりも外側に張り出させ、接合材を基板の側面から張り出した枠体の下面にかけて形成し、リード端子の下面と下面側に位置する接合材の側面との交線をリード端子の上面と上面側に位置する接合材の側面との交線よりも基板側に位置させた半導体撮像素子収納用パッケージが開示されている。そして、上記の半導体撮像素子収納用パッケージには、枠体および基板をステアタイトセラミックスで形成したことが開示されている(例えば、特許文献1参照)。 The conventional package for housing a semiconductor image sensor includes a substrate made of a rectangular flat plate-like insulator having an image sensor mounting portion formed in the center of the upper surface, and a metal attached to the outer peripheral portion of the upper surface of the substrate. A plurality of lead terminals, a frame body joined via a joining material over the entire circumference of the outer peripheral portion of the upper surface of the substrate via the plurality of lead terminals, and the upper surface of the frame body so as to block the inside of the frame body In the image pickup device storage package including the bonded crystal plate, the frame and the substrate are formed of an insulator having a linear thermal expansion coefficient of 8 × 10 −6 / ° C. to 10 × 10 −6 / ° C., The frame body is projected outward from the side surface of the substrate, the bonding material is formed over the lower surface of the frame body projecting from the side surface of the substrate, and the line of intersection between the lower surface of the lead terminal and the side surface of the bonding material located on the lower surface side is formed. The top surface of the lead terminal and the side of the bonding material located on the top Semiconductor imaging element storage package is positioned on the substrate side is disclosed than intersection line between. In the semiconductor image pickup device storage package, it is disclosed that the frame body and the substrate are formed of steatite ceramics (see, for example, Patent Document 1).

特許第4671744号公報Japanese Patent No. 4671744

しかしながら、前述したような従来の半導体撮像素子収納用パッケージは、次のような問題がある。
(1)従来のアルミナセラミックからなる枠体を用いた半導体撮像素子収納用パッケージは、枠体に水晶からなる蓋体を接合させる場合に、アルミナセラミックの線熱膨張係数が6.6×10−6/℃程度で、水晶の線熱膨張係数が10.0〜11.0×10−6/℃程度であり、両者の線熱膨張係数差が大きく、接合後の温度サイクル試験等の気密信頼性試験で、水晶からなる蓋体がアルミナセラミックからなる枠体から剥がれてしまうという問題を抱えている。
(2)
特許第4671744号公報で開示されるような半導体撮像素子収納用パッケージは、枠体及び基板の線熱膨張係数と、枠体に接合される蓋体である水晶板の線熱膨張係数が近似して、温度サイクル試験等の気密信頼性試験で、蓋体がセラミック枠体から剥がれてしまうという問題を回避できるものの、半導体撮像素子を収納するためのキャビティ部の大きさに対して半導体撮像素子収納用パッケージの外形の大きさが大きくなりすぎ、これを用いる装置の小型化に制限をもたらすこととなっている。
(3)特許第4671744号公報で開示されるような半導体撮像素子収納用パッケージは、枠体及び基板にステアタイトセラミックを用いる場合には、ステアタイトセラミックの線熱膨張係数が7.1×10−6/℃程度であるのに対して、枠体に接合される蓋体である水晶板の線熱膨張係数が10.0〜11.0×10−6/℃程度と大きく、接合後の温度サイクル試験等の気密信頼性試験で、蓋体が枠体から剥がれてしまうという問題を抱えることとなっている。また、特許第4671744号公報で開示されるような半導体撮像素子収納用パッケージは、半導体撮像素子が直接載置されて搭載される基板にステアタイトセラミックを用いる場合には、ステアタイトセラミックの熱伝導率が8W/m・K程度と低く、半導体撮像素子からの発熱を速やかに放熱させることが難しくなっている。
However, the conventional package for housing a semiconductor image sensor as described above has the following problems.
(1) a conventional semiconductor image pickup element storage package using a frame body made of alumina ceramic, the case of bonding a lid member composed of quartz in the frame, the linear thermal expansion coefficient of the alumina ceramic is 6.6 × 10 - at about 6 / ° C., a coefficient of linear thermal expansion of quartz is about 10.0 to 11.0 × 10 -6 / ° C., the linear thermal expansion coefficient difference therebetween is large, airtight reliability such as temperature cycle test after bonding In the property test, there is a problem that the lid made of quartz is peeled off from the frame made of alumina ceramic.
(2)
The package for housing a semiconductor image sensor as disclosed in Japanese Patent No. 4671744 approximates the linear thermal expansion coefficient of the frame and the substrate to the linear thermal expansion coefficient of the crystal plate that is a lid bonded to the frame. In the airtight reliability test such as the temperature cycle test, the problem that the lid is peeled off from the ceramic frame can be avoided, but the size of the cavity for accommodating the semiconductor image sensor is accommodated. Therefore, the size of the external package becomes too large, which limits the size reduction of a device using the package.
(3) In the package for housing a semiconductor image sensor as disclosed in Japanese Patent No. 4671744, when a steatite ceramic is used for the frame and the substrate, the linear thermal expansion coefficient of the steatite ceramic is 7.1 × 10. whereas -6 is / ℃ about, linear thermal expansion coefficient of the quartz plate is a lid that is joined to the frame is as large as 10.0 to 11.0 × 10 -6 / ℃ about, after bonding In an airtight reliability test such as a temperature cycle test, there is a problem that the lid body is peeled off from the frame body. In addition, a package for housing a semiconductor image pickup device as disclosed in Japanese Patent No. 4671744 discloses that when a steatite ceramic is used for a substrate on which the semiconductor image pickup device is directly mounted and mounted, the heat conduction of the steatite ceramic is disclosed. The rate is as low as about 8 W / m · K, and it is difficult to quickly dissipate heat generated from the semiconductor image sensor.

本発明は、かかる事情に鑑みてなされたものであって、水晶からなる蓋体を用いて気密信頼性を確保でき、放熱性に優れる安価な構造からなる半導体撮像素子収納用パッケージを提供することを目的とする。   The present invention has been made in view of such circumstances, and provides a package for housing a semiconductor image pickup element having an inexpensive structure that can ensure airtight reliability using a lid made of crystal and has excellent heat dissipation. With the goal.

前記目的に沿う本発明に係る半導体撮像素子収納用パッケージは、アルミナセラミックからなる平板状の基体と、基体の外周部上方に設けられて半導体撮像素子を収納するためのキャビティ部を形成する基体と同等寸法の外形でフォルステライトセラミック、又はフィラー入りプラスチックからなる窓枠状の枠体と、基体と枠体との間に熱硬化型樹脂接合材を介して固着されるFe−Ni系合金、又はCuからなる複数本の外部接続リード端子と、キャビティ部に半導体撮像素子が収納された後、枠体の上面に光硬化型樹脂接着材を介して接合される水晶からなる平板状の蓋体と、を具備する。   A package for housing a semiconductor image pickup device according to the present invention that meets the above-mentioned object is a flat substrate made of alumina ceramic, and a substrate that is provided above the outer periphery of the substrate to form a cavity for housing the semiconductor image pickup device. Fe-Ni alloy that is fixed with a thermosetting resin bonding material between a frame and a window frame-shaped frame made of forsterite ceramic or filler-filled plastic with an equivalent dimension, or A plurality of external connection lead terminals made of Cu, and a flat lid made of crystal that is bonded to the upper surface of the frame body via a photo-curing resin adhesive after the semiconductor imaging device is housed in the cavity portion; Are provided.

上記の半導体撮像素子収納用パッケージは、アルミナセラミックからなる平板状の基体と、基体の外周部上方に設けられて半導体撮像素子を収納するためのキャビティ部を形成する基体と同等寸法の外形でフォルステライトセラミック、又はフィラー入りプラスチックからなる窓枠状の枠体と、基体と枠体との間に熱硬化型樹脂接合材を介して固着されるFe−Ni系合金、又はCuからなる複数本の外部接続リード端子と、キャビティ部に半導体撮像素子が収納された後、枠体の上面に光硬化型樹脂接着材を介して接合される水晶からなる平板状の蓋体と、を具備するので、基体が熱伝導率の高いアルミナセラミックからなり、そこに直接載置されて搭載される半導体撮像素子からの発熱を速やかに放熱させることができる放熱性に優れた安価な半導体撮像素子収納用パッケージを提供できる。また、この半導体撮像素子収納用パッケージの基体と、枠体は、それぞれの外形が同等寸法になっているので、これを用いる装置の小型化に対応することができる半導体撮像素子収納用パッケージを提供できる。更に、この半導体撮像素子収納用パッケージの枠体は、線熱膨張係数が10.0×10−6/℃程度のフォルステライトセラミック、又は線熱膨張係数が10.0〜11.0×10−6/℃程度のフィラー入りプラスチックからなり、これに光硬化型樹脂接着材で接合される線熱膨張係数が10.0〜11.0×10−6/℃程度の水晶からなる平板状の蓋体との線熱膨張係数が近似するので、接合後の温度サイクル試験等の気密信頼性試験で、蓋体が枠体から剥がれるのを防止することができると共に、それぞれが安価な部材で構成される安価な半導体撮像素子収納用パッケージを提供できる。また、更には、この半導体撮像素子収納用パッケージの基体と枠体との間には、線熱膨張係数が4.6〜7.0×10−6/℃程度のFe−Ni系合金、又は線熱膨張係数が16.0〜17.0×10−6/℃程度のCuからなる複数本の外部接続リード端子を、線熱膨張係数が7.0〜16.0×10−6/℃程度で150℃程度の低温で接合できる熱硬化型樹脂接合材で接合させているので、それぞれの間に線熱膨張係数差があったとしても、熱歪みを発生させることなく強固に接合させる安価な半導体撮像素子収納用パッケージを提供できる。 The above-mentioned package for housing a semiconductor image pickup device is a flat substrate made of alumina ceramic and has an outer shape with the same dimensions as those of a substrate provided above the outer periphery of the substrate and forming a cavity portion for containing the semiconductor image pickup device. A window frame-shaped frame body made of stellite ceramic or a plastic containing filler, and a plurality of Fe-Ni alloys or Cu-bonded Fe-Ni alloys bonded between the substrate and the frame body via a thermosetting resin bonding material Since the external connection lead terminal and the flat plate-shaped lid made of crystal bonded to the upper surface of the frame body via the photo-curing resin adhesive after the semiconductor imaging device is housed in the cavity portion, The substrate is made of alumina ceramic with high thermal conductivity, and it has excellent heat dissipation that can quickly dissipate heat from the semiconductor image sensor mounted directly on the substrate. It can provide a valence semiconductor imaging element storage package. In addition, since the outer shape of the base body and the frame body of the package for housing a semiconductor image sensor have the same dimensions, a package for housing a semiconductor image sensor that can cope with downsizing of a device using the same is provided. it can. Furthermore, the frame of the package for housing a semiconductor imaging device has a forsterite ceramic having a linear thermal expansion coefficient of about 10.0 × 10 −6 / ° C., or a linear thermal expansion coefficient of 10.0 to 11.0 × 10 −. A flat lid made of a crystal having a linear thermal expansion coefficient of about 10.0 to 11.0 × 10 −6 / ° C. made of a plastic containing filler of about 6 / ° C. and bonded thereto by a photocurable resin adhesive. Since the coefficient of linear thermal expansion with the body approximates, it is possible to prevent the lid from peeling off from the frame body in an airtight reliability test such as a temperature cycle test after joining, and each is composed of an inexpensive member. An inexpensive semiconductor image pickup device storage package can be provided. Furthermore, an Fe—Ni alloy having a linear thermal expansion coefficient of about 4.6 to 7.0 × 10 −6 / ° C. between the base body and the frame of the package for housing a semiconductor image sensor, or the external connection lead terminals of a plurality of coefficient of linear thermal expansion is made of 16.0~17.0 × 10 -6 / ℃ about Cu, linear thermal expansion coefficient of 7.0~16.0 × 10 -6 / ℃ Because it is bonded with a thermosetting resin bonding material that can be bonded at a low temperature of about 150 ° C., even if there is a difference in linear thermal expansion coefficient between them, it is cheap to bond firmly without generating thermal distortion A package for housing a semiconductor image sensor can be provided.


(A)、(B)はそれぞれ本発明の一実施の形態に係る半導体撮像素子収納用パッケージの斜視図、A−A’線拡大縦断面図である。(A), (B) is a perspective view of the package for housing a semiconductor image pickup device according to an embodiment of the present invention, respectively, and is an enlarged vertical sectional view taken along line A-A ′.

続いて、添付した図面を参照しながら、本発明を具体化した実施するための最良の形態について説明し、本発明の理解に供する。
ここに、図1(A)、(B)はそれぞれ本発明の一実施の形態に係る半導体撮像素子収納用パッケージの平面図、A−A’線拡大縦断面図である。
Subsequently, the best mode for carrying out the present invention will be described with reference to the accompanying drawings to provide an understanding of the present invention.
Here, FIGS. 1A and 1B are a plan view and an AA ′ line enlarged vertical sectional view, respectively, of a package for housing a semiconductor image pickup device according to an embodiment of the present invention.

図1(A)、(B)に示すように、本発明の一実施の形態に係る半導体撮像素子収納用パッケージ10は、アルミナセラミックからなる平板状の基体11を具備している。この基体11には、先ず、所定の粒径からなるアルミナセラミック粉末と、バインダー等を混合した水溶液をスプレードライヤーで乾燥して作製した造粒粉末原料が用いられるようになっている。次に、この造粒粉末原料は、上金型、下金型、及びダイス等からなる粉末プレス用金型を用いてプレス成形して、所望の大きさ、形状の成形体にしている。次に、成形体は、内部が大気中からなる焼成炉の約1550℃程度の高温で焼成して焼成体にしている。そして、焼成体は、両面を表面研削機等で切削加工して平坦にしてアルミナ(酸化アルミニウム:Al)からなる基体11としている。 As shown in FIGS. 1A and 1B, a semiconductor image pickup device storage package 10 according to an embodiment of the present invention includes a flat substrate 11 made of alumina ceramic. The base 11 is made of a granulated powder material prepared by drying an aqueous solution in which an alumina ceramic powder having a predetermined particle size and a binder are mixed with a spray dryer. Next, this granulated powder raw material is press-molded using a powder press mold comprising an upper mold, a lower mold, a die and the like to obtain a molded body having a desired size and shape. Next, the molded body is fired at a high temperature of about 1550 ° C. in a firing furnace whose inside is in the atmosphere to form a fired body. The fired body is made to be a base 11 made of alumina (aluminum oxide: Al 2 O 3 ) by flattening both sides with a surface grinder or the like.

上記のアルミナからなる基体11は、線熱膨張係数が6.8〜7.0×10−6/℃程度で熱に対しての変形が少ない上に、熱伝導率が13W/m・K程度で比較的大きいので、ここに搭載される半導体撮像素子12からの発熱に対しての変形が少ない上に、半導体撮像素子12からの発熱を基体11の外部側に速やかに伝熱させて放熱させることができるという作用を有している。なお、基体11は、平板状の形状を限定するものではなく、全てにおいて平行な厚みからなる平板状であってもよく、外周部に階段状の土手部を設けたものであってもよい。 The substrate 11 made of alumina has a coefficient of linear thermal expansion of about 6.8 to 7.0 × 10 −6 / ° C. and little deformation with respect to heat, and a thermal conductivity of about 13 W / m · K. Therefore, the deformation due to the heat generated from the semiconductor image pickup device 12 mounted thereon is small, and the heat generated from the semiconductor image pickup device 12 is quickly transferred to the outside of the base 11 to dissipate the heat. It has the effect of being able to. The base 11 is not limited to a flat plate shape, and may be a flat plate having a parallel thickness in all cases, or may be provided with a stepped bank portion on the outer peripheral portion.

この半導体撮像素子収納用パッケージ10は、基体11の外周部上方に設けられて半導体撮像素子12を収納するためのキャビティ部13を形成する基体11と同等寸法の外形でフォルステライトセラミック、又はフィラー入りプラスチックからなる窓枠状の枠体14を具備している。この半導体撮像素子収納用パッケージ10は、平板状の基体11の外形寸法と、この外形寸法と略同じ外形寸法を有する窓枠状の枠体14で半導体撮像素子12を収納するためのキャビティ部13を形成し、半導体撮像素子収納用パッケージ10自体の大きさを必要以上に大きくしていないので、これを用いる装置の小型化に対応できるようになっている。   The semiconductor image pickup device storage package 10 is provided above the outer peripheral portion of the base body 11 and has a forsterite ceramic or filler with an outer shape having the same dimensions as the base body 11 forming the cavity portion 13 for storing the semiconductor image pickup device 12. A window frame-like frame body 14 made of plastic is provided. The semiconductor image pickup device storage package 10 includes a cavity portion 13 for storing the semiconductor image pickup device 12 with a window frame-like frame body 14 having an outer dimension of a flat substrate 11 and a substantially same outer dimension as the outer dimension. Since the size of the semiconductor image pickup device housing package 10 itself is not increased more than necessary, it is possible to cope with the downsizing of a device using the same.

上記の枠体14は、これがフォルステライトセラミックからなる場合には、フォルステライトセラミック粉末と、バインダー等からなる造粒粉末原料を、上記と同様な方法で成形体、焼成体にし、上記と同様に両面を表面研削機等で切削加工して平坦にしてフォルステライトセラミック(2MgO/SiO)からなる枠体14としている。このフォルステライトセラミックからなる枠体14は、線熱膨張係数が10.0×10−6/℃程度と、これに接合される水晶からなる蓋体15の線熱膨張係数(10.0〜11.0×10−6/℃程度)に極めて近似しているので、接合後の温度サイクル試験等の気密信頼性試験での蓋体15が枠体14から剥がれるのを防止することができるという作用を有している。 In the case where the frame body 14 is made of forsterite ceramic, the granulated powder raw material made of forsterite ceramic powder and a binder or the like is formed into a molded body or a fired body by the same method as above, and the same as above. Both sides are cut by a surface grinder or the like to make it flat to form a frame body 14 made of forsterite ceramic (2MgO / SiO 2 ). The frame body 14 made of this forsterite ceramic has a linear thermal expansion coefficient of about 10.0 × 10 −6 / ° C., and the linear thermal expansion coefficient (10.0 to 11) of the lid body 15 made of crystal bonded thereto. (Approx. 0.0 × 10 −6 / ° C.), the lid 15 can be prevented from peeling off from the frame 14 in a hermetic reliability test such as a temperature cycle test after joining. have.

また、上記の枠体14は、これがフィラー入りプラスチックからなる場合には、エポキシ樹脂や、PPS(ポリフェニレンサルファイト)樹脂等に適当量のフィラーを混合させた樹脂板から所望の形状に成形し、フィラー入りプラスチックからなる窓枠状の枠体14としている。このフィラー入りプラスチックからなる枠体14は、線熱膨張係数が10.0〜11.0×10−6/℃程度と、これに接合される水晶からなる蓋体15の線熱膨張係数(10.0〜11.0×10−6/℃程度)と略同等であるので、接合後の温度サイクル試験等の気密信頼性試験での蓋体15が枠体14から剥がれるのを防止することができるという作用を有している。 Further, when the frame body 14 is made of a plastic containing filler, it is molded into a desired shape from a resin plate in which an appropriate amount of filler is mixed with epoxy resin, PPS (polyphenylene sulfite) resin or the like, A window frame 14 made of plastic with filler is used. The frame body 14 made of this plastic containing filler has a linear thermal expansion coefficient of about 10.0 to 11.0 × 10 −6 / ° C., and the linear thermal expansion coefficient (10 of the lid body 15 made of crystal bonded thereto. About 0 to 11.0 × 10 −6 / ° C.), it is possible to prevent the lid body 15 from being peeled off from the frame body 14 in an airtight reliability test such as a temperature cycle test after joining. Has the effect of being able to.

この半導体撮像素子収納用パッケージ10は、基体11と枠体14との間に熱硬化型樹脂接合材16を介して固着されるFe−Ni系合金(通称、42アロイと称す)、又はCuからなる金属製の複数本の外部接続リード端子17を具備している。熱硬化型樹脂接合材16には、例えば、熱硬化性のエポキシ樹脂があり、液状エポキシ樹脂に充填材、硬化材、着色材を混合させて混練し、ペースト状にしたものを用いている。そして、半導体撮像素子収納用パッケージ10は、ペースト状にしたものをスクリーン印刷法や、ディスペンサ法で基体11や、枠体14に塗布して乾燥させた後、基体11と枠体14との間に外部接続リード端子17を挟み込んだ状態で150℃程度の低温で、1時間程度焼成炉中を通路させたり、オーブン中に挿入させたり等して加熱して硬化させることで作製している。また、この半導体撮像素子収納用パッケージ10は、外部接続リード端子17を枠体14の内周側からキャビティ部13の内部と、基体11及び枠体14の外周側からパッケージの外部にリード端子部がそれぞれ突出するようにして固着されている。   The semiconductor image pickup device storage package 10 is made of an Fe—Ni alloy (commonly referred to as 42 alloy), which is fixed between a base 11 and a frame 14 via a thermosetting resin bonding material 16, or Cu. A plurality of external connection lead terminals 17 made of metal are provided. The thermosetting resin bonding material 16 includes, for example, a thermosetting epoxy resin, and a paste obtained by mixing and kneading a liquid epoxy resin with a filler, a curing material, and a coloring material is used. Then, the semiconductor image pickup device storage package 10 is applied between the base 11 and the frame 14 after being applied to the base 11 and the frame 14 by a screen printing method or a dispenser method and then dried. In the state where the external connection lead terminal 17 is sandwiched between the two, it is manufactured by being cured by heating at a low temperature of about 150 ° C. for about 1 hour by passing it through a firing furnace or inserting it into an oven. The semiconductor image pickup device storage package 10 also has lead terminal portions for connecting the external connection lead terminals 17 from the inner peripheral side of the frame body 14 to the inside of the cavity portion 13 and from the outer peripheral sides of the base 11 and the frame body 14 to the outside of the package. Are fixed so as to protrude from each other.

この半導体撮像素子収納用パッケージ10は、熱硬化型樹脂接合材16の線熱膨張係数が7.0〜16.0×10−6/℃程度で、外部接続リード端子17の線熱膨張係数が4.6〜7.0×10−6/℃程度のFe−Ni系合金や、線熱膨張係数が16.0〜17.0×10−6/℃程度のCuとの間に線熱膨張係数差がある。しかしながら、それぞれの線熱膨張係数は、熱硬化型樹脂接合材16の線熱膨張係数のバラツキの範囲内にあり、接合後の温度サイクル試験等の気密信頼性試験での外部接続リード端子17と熱硬化型樹脂接合材16との間の剥がれを防止することができるという作用を有している。 In this semiconductor image pickup device housing package 10, the linear thermal expansion coefficient of the thermosetting resin bonding material 16 is about 7.0 to 16.0 × 10 −6 / ° C., and the linear thermal expansion coefficient of the external connection lead terminal 17. 4.6 to 7.0 and × 10 -6 / ° C. of about Fe-Ni alloy, the linear thermal expansion coefficient of linear thermal expansion between the 16.0~17.0 × 10 -6 / ℃ about Cu There is a coefficient difference. However, the respective linear thermal expansion coefficients are within the range of variation of the linear thermal expansion coefficient of the thermosetting resin bonding material 16, and the external connection lead terminals 17 in the airtight reliability test such as the temperature cycle test after the bonding It has the effect | action that it can prevent peeling between the thermosetting resin bonding materials 16.

この半導体撮像素子収納用パッケージ10は、外部接続リード端子17にFe−Ni系合金を用いる場合には、基体11との間では線熱膨張係数が近似するものの、枠体14との間では線熱膨張係数が異なることとなっている。また、この半導体撮像素子収納用パッケージ10は、外部接続リード端子17にCuを用いる場合には、基体11、及び枠体14との間で線熱膨張係数が異なることとなっている。しかしながら、この半導体撮像素子収納用パッケージ10は、基体11や、枠体14や、外部接続リード端子17の線熱膨張係数が異なるそれぞれの部材を固着させる熱硬化型樹脂接合材16を低い温度で処理できるので、接合信頼性に問題を発生させることなく固着させることができるという作用を有している。   When the Fe-Ni alloy is used for the external connection lead terminal 17, the semiconductor image pickup device storage package 10 has a linear thermal expansion coefficient that is close to the base 11, but is not linear to the frame 14. The thermal expansion coefficients are different. Further, in the semiconductor image pickup device storage package 10, when Cu is used for the external connection lead terminal 17, the linear thermal expansion coefficient differs between the base body 11 and the frame body 14. However, in this semiconductor image pickup device storage package 10, the thermosetting resin bonding material 16 for fixing the members having different linear thermal expansion coefficients of the base 11, the frame 14, and the external connection lead terminals 17 at a low temperature. Since it can be processed, it has an effect that it can be fixed without causing a problem in the bonding reliability.

半導体撮像素子収納用パッケージ10の外部接続リード端子17にCuを用いる場合には、特に、Cuに含まれる含有物、含有量を限定するものではないが、例えば、Cuを97重量%以上含有し、残部にFe、P、Znの全てを含有するCu合金からなっているのが好ましい。なお、このCu合金は、Cuの含有量が97重量%を下まわる場合には、電気信号の伝送速度が遅くなるので好ましくない。また、このCu合金は、Cu合金中のFe、P、Znの全体含有量が3重量%以下となり、特に、それぞれの含有量を限定するものではないが、Feを2.1〜2.6重量%、Pを0.015〜0.15重量%、Znを0.05〜0.20重量%の範囲内で含有するのが好ましい。上記の範囲の含有量で構成されるCu合金からなる外部接続リード端子17は、高い強度と伸びを有してリード端子の形状を保ち、且つ加工性に優れると共に、電気信号の伝送速度を高めることができる。また、このCu合金は、耐食性に優れ、特に、応力腐蝕割れの発生を防止することができる外部接続リード端子17を形成することができる。   When Cu is used for the external connection lead terminal 17 of the semiconductor image pickup device storage package 10, the content and content of Cu are not particularly limited. For example, Cu is contained by 97% by weight or more. The balance is preferably made of a Cu alloy containing all of Fe, P, and Zn. It is to be noted that this Cu alloy is not preferable when the Cu content is less than 97% by weight because the transmission speed of the electric signal becomes slow. In addition, this Cu alloy has a total content of Fe, P, and Zn in the Cu alloy of 3% by weight or less, and the content of Fe is not particularly limited, but Fe is 2.1 to 2.6. It is preferable to contain within a range of wt%, P of 0.015 to 0.15 wt%, and Zn of 0.05 to 0.20 wt%. The external connection lead terminal 17 made of a Cu alloy having a content in the above range has high strength and elongation, maintains the shape of the lead terminal, is excellent in workability, and increases the transmission speed of electric signals. be able to. Moreover, this Cu alloy is excellent in corrosion resistance, and in particular, can form the external connection lead terminal 17 that can prevent the occurrence of stress corrosion cracking.

Fe−Ni系合金、又はCuからなる外部接続リード端子17は、Fe−Ni系合金、Cu、Cu合金の板状金属板をエッチングや、パンチング等で複数本のリード端子を設けてパターン加工して複数の一方のリード端子部側をキャビティ部13側方向になるようにして解放し、他方のリード端子部側をそれぞれが接続状態となるようにして外周囲を取り巻くタイバー部(図示せず)を設ける平板状のリードフレーム形状体に形成している。そして、この平板状のリードフレーム形状体からは、平板状のままであったり、基体11の相対向する一方の幅方向に跨げることができる程度の位置を折り曲げたり等することで、タイバー部を有する外部接続リード端子17に形成している。   The external connection lead terminal 17 made of Fe-Ni alloy or Cu is patterned by providing a plurality of lead terminals by etching or punching a plate-like metal plate of Fe-Ni alloy, Cu or Cu alloy. The tie bar portion (not shown) that surrounds the outer periphery so that one lead terminal portion side is released in the direction toward the cavity portion 13 and the other lead terminal portion is connected to each other. Is formed into a flat lead frame shape body. And, from this flat lead frame shape body, the tie bar can be formed by bending the position where it can remain in the flat plate shape or straddle one of the opposing width directions of the base 11. The external connection lead terminal 17 having a portion is formed.

半導体撮像素子収納用パッケージ10は、上記の外部接続リード端子17の少なくともリード端子部の外部に露出する表面にNiめっき被膜、このNiめっき被膜の表面にAuめっき被膜を電解めっき方法で形成して設けている。次いで、この半導体撮像素子収納用パッケージ10は、キャビティ部13の底面である基体11の上面に半導体撮像素子12を搭載し、ボンディングワイヤ(図示せず)を介して半導体撮像素子12と外部接続リード端子17の間を電気的に導通状態となるようにしている。そして、半導体撮像素子12をキャビティ部13に収納させた半導体撮像素子収納用パッケージ10は、枠体14の上面に光硬化型樹脂接着材18を介して接合することができる水晶からなる平板状の蓋体15を具備している。光硬化型樹脂接着材18には、例えば、光硬化性のエポキシ樹脂があり、ペースト状の樹脂をスクリーン印刷法や、ディスペンサ法で枠体14、及び/又は蓋体15に塗布した後、枠体14の上面に蓋体15を重ね合わせて載置し、蓋体15の上面から紫外線を照射して硬化させるようにしている。これによって、半導体撮像素子収納用パッケージ10は、キャビティ部13に半導体撮像素子12が中空状態で気密に封止されることとなっている。   The semiconductor image pickup device storage package 10 is formed by forming an Ni plating film on the surface of the external connection lead terminal 17 exposed to at least the outside of the lead terminal portion, and forming an Au plating film on the surface of the Ni plating film by an electrolytic plating method. Provided. Next, in the semiconductor image pickup device storage package 10, the semiconductor image pickup device 12 is mounted on the upper surface of the base 11 which is the bottom surface of the cavity portion 13, and the semiconductor image pickup device 12 and the external connection lead are connected via bonding wires (not shown). The terminals 17 are electrically connected. The semiconductor image pickup device storage package 10 in which the semiconductor image pickup device 12 is stored in the cavity portion 13 is a flat plate made of crystal that can be bonded to the upper surface of the frame body 14 via a photocurable resin adhesive 18. A lid 15 is provided. The photocurable resin adhesive 18 includes, for example, a photocurable epoxy resin. After applying a paste-like resin to the frame body 14 and / or the lid body 15 by a screen printing method or a dispenser method, A lid 15 is placed on the upper surface of the body 14 so as to be superposed, and ultraviolet rays are irradiated from the upper surface of the lid 15 to be cured. As a result, the semiconductor image pickup device storage package 10 is hermetically sealed in the cavity 13 with the semiconductor image pickup device 12 in a hollow state.

本発明の半導体撮像素子収納用パッケージは、CCD型等の半導体撮像素子を搭載し、ファクシミリや、ラインスキャナーや、イメージスキャナー等に用いることができる。また、本発明の半導体撮像素子収納用パッケージは、MOS型等の半導体撮像素子を搭載し、デジタルカメラや、デジタルビデオカメラ等に用いることができる。   The package for housing a semiconductor image pickup device of the present invention is equipped with a semiconductor image pickup device such as a CCD type and can be used for a facsimile, a line scanner, an image scanner, and the like. Further, the semiconductor image pickup device storage package of the present invention is equipped with a MOS type semiconductor image pickup device and can be used for a digital camera, a digital video camera, and the like.

10:半導体撮像素子収納用パッケージ、11:基体、12:半導体撮像素子、13:キャビティ部、14:枠体、15:蓋体、16:熱硬化型樹脂接合材、17:外部接続リード端子、18:光硬化型樹脂接合材   10: Package for housing semiconductor image pickup device, 11: Base body, 12: Semiconductor image pickup device, 13: Cavity, 14: Frame body, 15: Cover body, 16: Thermosetting resin bonding material, 17: External connection lead terminal, 18: Photocurable resin bonding material

Claims (1)

アルミナセラミックからなる平板状の基体と、該基体の外周部上方に設けられて半導体撮像素子を収納するためのキャビティ部を形成する前記基体と同等寸法の外形でフォルステライトセラミック、又はフィラー入りプラスチックからなる窓枠状の枠体と、前記基体と前記枠体との間に熱硬化型樹脂接合材を介して固着されるFe−Ni系合金、又はCuからなる複数本の外部接続リード端子と、前記キャビティ部に前記半導体撮像素子が収納された後、前記枠体の上面に光硬化型樹脂接着材を介して接合される水晶からなる平板状の蓋体と、を具備することを特徴とする半導体撮像素子収納用パッケージ。   A flat substrate made of alumina ceramic and a forsterite ceramic or filler-filled plastic having an outer shape of the same size as the substrate provided above the outer periphery of the substrate and forming a cavity for housing a semiconductor imaging device A window frame-shaped frame body, and a plurality of external connection lead terminals made of Fe-Ni-based alloy or Cu that is fixed between the base body and the frame body via a thermosetting resin bonding material, A flat lid made of crystal that is bonded to the upper surface of the frame body via a photo-curable resin adhesive after the semiconductor imaging element is housed in the cavity portion; Package for semiconductor image sensor storage.
JP2013048565A 2013-03-12 2013-03-12 Package for housing semiconductor imaging element Pending JP2014175557A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2013048565A JP2014175557A (en) 2013-03-12 2013-03-12 Package for housing semiconductor imaging element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2013048565A JP2014175557A (en) 2013-03-12 2013-03-12 Package for housing semiconductor imaging element

Publications (1)

Publication Number Publication Date
JP2014175557A true JP2014175557A (en) 2014-09-22

Family

ID=51696474

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2013048565A Pending JP2014175557A (en) 2013-03-12 2013-03-12 Package for housing semiconductor imaging element

Country Status (1)

Country Link
JP (1) JP2014175557A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017165624A (en) * 2016-03-17 2017-09-21 株式会社サイオクス Nitride semiconductor template, and nitride semiconductor laminate
CN109427255A (en) * 2017-08-21 2019-03-05 三星显示有限公司 Display device
CN114725277A (en) * 2022-03-30 2022-07-08 广东良友科技有限公司 A kind of multi-lead arrangement package bracket and preparation method thereof

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6155945A (en) * 1984-08-27 1986-03-20 Nec Kansai Ltd Sealing method of cap for flat package
JPS6172660A (en) * 1984-09-18 1986-04-14 Nec Kansai Ltd Method for forming film
JPH10501102A (en) * 1995-03-02 1998-01-27 サーキット コンポーネンツ インコーポレーテッド Low-cost, high-performance package for microwave circuits in the frequency range up to 90 GHz using BGA I/O RF port format and ceramic substrate technology
JP2001257410A (en) * 2000-03-09 2001-09-21 Kyocera Corp Electronic components
JP2006066659A (en) * 2004-08-27 2006-03-09 Kyocera Corp Image pickup device storage package and image pickup apparatus
JP2006302990A (en) * 2005-04-18 2006-11-02 Kyocera Corp Image pickup device storage package and image pickup apparatus
JP2007043063A (en) * 2005-06-28 2007-02-15 Kyocera Corp Solid-state imaging device storage package, solid-state imaging device mounting substrate, and solid-state imaging device
JP2007314395A (en) * 2006-05-29 2007-12-06 Sumitomo Metal Electronics Devices Inc Forsterite substrate

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6155945A (en) * 1984-08-27 1986-03-20 Nec Kansai Ltd Sealing method of cap for flat package
JPS6172660A (en) * 1984-09-18 1986-04-14 Nec Kansai Ltd Method for forming film
JPH10501102A (en) * 1995-03-02 1998-01-27 サーキット コンポーネンツ インコーポレーテッド Low-cost, high-performance package for microwave circuits in the frequency range up to 90 GHz using BGA I/O RF port format and ceramic substrate technology
JP2001257410A (en) * 2000-03-09 2001-09-21 Kyocera Corp Electronic components
JP2006066659A (en) * 2004-08-27 2006-03-09 Kyocera Corp Image pickup device storage package and image pickup apparatus
JP2006302990A (en) * 2005-04-18 2006-11-02 Kyocera Corp Image pickup device storage package and image pickup apparatus
JP2007043063A (en) * 2005-06-28 2007-02-15 Kyocera Corp Solid-state imaging device storage package, solid-state imaging device mounting substrate, and solid-state imaging device
JP2007314395A (en) * 2006-05-29 2007-12-06 Sumitomo Metal Electronics Devices Inc Forsterite substrate

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017165624A (en) * 2016-03-17 2017-09-21 株式会社サイオクス Nitride semiconductor template, and nitride semiconductor laminate
CN109427255A (en) * 2017-08-21 2019-03-05 三星显示有限公司 Display device
CN114725277A (en) * 2022-03-30 2022-07-08 广东良友科技有限公司 A kind of multi-lead arrangement package bracket and preparation method thereof

Similar Documents

Publication Publication Date Title
US8120128B2 (en) Optical device
JP2012182491A (en) Glass cap molding package, method of manufacturing thereof, and camera module
JP2014175557A (en) Package for housing semiconductor imaging element
JP7023724B2 (en) Package and electronics
JP2012156428A (en) Package for housing electronic component, and electronic device having the same
JP2010153763A (en) Package for storing imaging element and imaging device
JP2005101484A (en) Optical semiconductor device
JP4902880B2 (en) Ceramic package
JP7033974B2 (en) Ceramic circuit boards, packages and electronics
JP4671744B2 (en) Image pickup device storage package and image pickup apparatus
JP5161672B2 (en) Package for receiving semiconductor light receiving elements
JP2009021333A (en) Method of manufacturing optical coupling apparatus, and optical coupling apparatus
JP2012049377A (en) Package for housing imaging element and imaging device
JP6567934B2 (en) Imaging device
JP2021022590A (en) Optical device package and optical device
JP7041020B2 (en) Ceramic circuit boards, packages and electronics
JP2685083B2 (en) Manufacturing method of semiconductor device storage package
JP2010103456A (en) Package for storing image sensor, and image capturing apparatus
WO2014033768A1 (en) Semiconductor device and semiconductor device producing method
JP2792638B2 (en) Package for storing semiconductor elements
JP2006041270A (en) Optical semiconductor element storage package and optical semiconductor device
JP2016139736A (en) Imaging element storage package, imaging apparatus, and imaging module
JP2015012160A (en) Mold package and manufacturing method therefor
JP2948956B2 (en) Package for storing sensor elements
JPH06188325A (en) Package for semiconductor-element housing

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20160218

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20161215

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20170124

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20170801