Movatterモバイル変換


[0]ホーム

URL:


JPH0582662A - Chip carrier - Google Patents

Chip carrier

Info

Publication number
JPH0582662A
JPH0582662AJP26716991AJP26716991AJPH0582662AJP H0582662 AJPH0582662 AJP H0582662AJP 26716991 AJP26716991 AJP 26716991AJP 26716991 AJP26716991 AJP 26716991AJP H0582662 AJPH0582662 AJP H0582662A
Authority
JP
Japan
Prior art keywords
lsi
substrate
heat sink
soldering
frame member
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.)
Granted
Application number
JP26716991A
Other languages
Japanese (ja)
Other versions
JP2712939B2 (en
Inventor
Yukio Yamaguchi
幸雄 山口
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC CorpfiledCriticalNEC Corp
Priority to JP26716991ApriorityCriticalpatent/JP2712939B2/en
Publication of JPH0582662ApublicationCriticalpatent/JPH0582662A/en
Application grantedgrantedCritical
Publication of JP2712939B2publicationCriticalpatent/JP2712939B2/en
Anticipated expirationlegal-statusCritical
Expired - Lifetimelegal-statusCriticalCurrent

Links

Classifications

Landscapes

Abstract

PURPOSE:To perform a soldering operation by using a flux and to easily absorb an irregularity in the height of an LSI or the like when it is bonded. CONSTITUTION:An LSI 1 is soldered to a board 2 and a heat sink 7 is soldered to the LSI 1; after that, a frame member 9 is attached to the side face of the board 2 and to the side face of the heat sink 7. A roller electrode is put on the frame member 9. After that, while the roller electrode is being turned, it is moved along the side face of the board 2 and along the side face of the heat sink 7 so as to perform a seam welding operation. The frame member 7 is bonded to the side face of the board 2 and to the side face of the heat sink 7.

Description

Translated fromJapanese
【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【技術分野】本発明はチップキャリアに関し、特に電子
装置などに使用される配線基板にLSIを実装するため
に用いるチップキャリアに関する。
TECHNICAL FIELD The present invention relates to a chip carrier, and more particularly to a chip carrier used for mounting an LSI on a wiring board used for an electronic device or the like.

【0002】[0002]

【従来技術】従来、この種のチップキャリアにおいて
は、図5に示すように、セラミック基板12のバンプ1
3が設けられた面に対向する面上のパッド(図示せず)
にLSI1の半田バンプ6を接合した後に、AlNキャ
ップ14を半田15,16でLSI1とセラミック基板
12とに夫々接合している。
2. Description of the Related Art Conventionally, in this type of chip carrier, as shown in FIG.
Pad on the surface opposite to the surface provided with 3 (not shown)
After the solder bumps 6 of the LSI 1 are bonded to the LSI 1, the AlN cap 14 is bonded to the LSI 1 and the ceramic substrate 12 by the solders 15 and 16, respectively.

【0003】上記の技術は、「ハードウェア技術,実装
遅延の削減と雑音の抑制を徹底追及」(日経エレクトロ
ニクス,1990,12.10,No.515 ,P.226 〜241 )
に詳述されている。
The above-mentioned technology is "hardware technology, thorough pursuit of reduction of mounting delay and suppression of noise" (Nikkei Electronics, 1990, 12.10, No. 515, P. 226-241).
Are detailed in.

【0004】このような従来のチップキャリアでは、A
lNキャップ14を半田15,16でLSI1とセラミ
ック基板12とに夫々接合しているので、半田付けにフ
ラックスを用いた場合、内部にフラックスが残り、マイ
グレーションや腐食などが発生するという欠点がある。
In such a conventional chip carrier, A
Since the IN cap 14 is joined to the LSI 1 and the ceramic substrate 12 with the solders 15 and 16, respectively, when flux is used for soldering, there is a drawback that the flux remains inside and migration or corrosion occurs.

【0005】一方、フラックスなしで半田付けを行う場
合には、LSI1やセラミック基板12、およびAlN
キャップ14の接合面と半田15,16とをきれいにし
て酸化のない状態にし、かつ酸素のない雰囲気中で半田
付けを行わなければ適切な半田付けを行うことができな
いという欠点がある。
On the other hand, when soldering is performed without flux, the LSI 1, the ceramic substrate 12, and the AlN
There is a drawback that proper soldering cannot be performed unless the joint surface of the cap 14 and the solders 15 and 16 are cleaned so as to be free from oxidation and soldering is not performed in an oxygen-free atmosphere.

【0006】また、LSI1や半田バンプ6、およびL
SI1の裏面の半田15の厚さから適切な深さのAlN
キャップ14を選ぶ必要があるため、複数種類の深さの
AlNキャップ14を用意しなければならないという欠
点がある。
The LSI 1, the solder bumps 6, and L
From the thickness of the solder 15 on the back surface of SI1, to a proper depth of AlN
Since the cap 14 needs to be selected, there is a drawback that the AlN caps 14 having plural kinds of depths must be prepared.

【0007】さらに、AlNキャップ14とセラミック
基板12とを接合している半田16の量を多くして、L
SI1や半田バンプ6、およびLSI1の裏面の半田1
5の厚さ変動を吸収する必要があるため、AlNキャッ
プ14とセラミック基板12とを接合している半田16
が内部に飛び散ったり、AlNキャップ14とセラミッ
ク基板12とを接合している半田16が厚くなるために
内部との圧力差で半田16に孔があき、機密封止できな
くなることがあるという欠点がある。
Further, by increasing the amount of solder 16 joining the AlN cap 14 and the ceramic substrate 12,
SI1 and solder bumps 6, and solder 1 on the back surface of LSI1
Since it is necessary to absorb the thickness variation of No. 5, the solder 16 that joins the AlN cap 14 and the ceramic substrate 12 together
May scatter inside, or the solder 16 joining the AlN cap 14 and the ceramic substrate 12 may become thicker, which may cause holes in the solder 16 due to the pressure difference between the inside and the seal, which may make it impossible to hermetically seal. is there.

【0008】[0008]

【発明の目的】本発明は上記のような従来のものの欠点
を除去すべくなされたもので、フラックスを用いて半田
付けを確実に行うことができ、LSIなどの接合におけ
る高さのバラツキを容易に吸収することができるチップ
キャリアの提供を目的とする。
SUMMARY OF THE INVENTION The present invention has been made in order to eliminate the above-mentioned drawbacks of the conventional ones, and can reliably perform soldering by using a flux, so that variations in height at the joining of LSI or the like can be easily performed. The purpose is to provide a chip carrier that can be absorbed into

【0009】[0009]

【発明の構成】本発明によるチップキャリアは、表面に
複数のパッドが形成された基板と、前記複数のパッドに
複数のバンプを電気的に接続して前記基板上に実装され
る集積回路と、前記基板との実装面に対向する前記集積
回路の裏面に接合され、前記集積回路で発生する熱を放
散する放熱板と、前記集積回路との実装面に対して直交
する前記基板の側面と、前記集積回路との接合面に対し
て直交する前記放熱板の側面とに対して各々の周囲を同
時に接合して封止する枠部材とからなることを特徴とす
る。
A chip carrier according to the present invention comprises a substrate having a plurality of pads formed on its surface, and an integrated circuit mounted on the substrate by electrically connecting a plurality of bumps to the plurality of pads. A heat dissipation plate that is joined to the back surface of the integrated circuit facing the mounting surface with the substrate and dissipates heat generated in the integrated circuit; and a side surface of the substrate that is orthogonal to the mounting surface with the integrated circuit, It is characterized in that it comprises a frame member that simultaneously joins and seals each periphery with a side surface of the heat dissipation plate that is orthogonal to a joint surface with the integrated circuit.

【0010】[0010]

【実施例】次に、本発明の一実施例について図面を参照
して説明する。
An embodiment of the present invention will be described with reference to the drawings.

【0011】図1は本発明の一実施例の縦断面図であ
る。図において、LSI1は半田バンプ6によって基板
2上のパッド3に接合されている。基板2において、パ
ッド3は対向する面に設けられた入出力用バンプ4に内
部配線5で接続されている。
FIG. 1 is a vertical sectional view of an embodiment of the present invention. In the figure, the LSI 1 is bonded to the pads 3 on the substrate 2 by solder bumps 6. In the substrate 2, the pads 3 are connected to the input / output bumps 4 provided on the opposite surface by the internal wiring 5.

【0012】一方、LSI1の裏面には半田8によって
放熱板7が接合されており、LSI1で発生した熱は放
熱板7から外部に放散される。LSI1の裏面にはスパ
ッタリングなどの薄膜やメッキ法によってNiやCuの
金属層を設けている。放熱板7としては、絶縁性を必要
とする場合にAlNやSiCの高熱伝導性セラミック板
を使用し、半田付けする面にスパッタリングなどの薄膜
や厚膜ペースト印刷方法などによってNiやCuの金属
層を設けている。また、絶縁性を必要としない場合には
Cu/Wなどの高熱伝導性金属を使用することもでき
る。
On the other hand, a heat radiating plate 7 is joined to the back surface of the LSI 1 with solder 8 and the heat generated in the LSI 1 is dissipated to the outside from the heat radiating plate 7. On the back surface of the LSI 1, a metal layer of Ni or Cu is provided by a thin film such as sputtering or a plating method. As the heat radiating plate 7, a high heat conductive ceramic plate of AlN or SiC is used when insulation is required, and a metal layer of Ni or Cu is formed on the soldering surface by a thin film or thick film paste printing method such as sputtering. Is provided. Further, when the insulating property is not required, a high heat conductive metal such as Cu / W can be used.

【0013】基板2および放熱板7の側面にはろう付け
などによってリング10,11が取付けられており、こ
れらリング10,11に枠部材9がシーム溶接などの電
気溶接によって取付けられている。ここで、放熱板7が
絶縁性を必要としない場合には高熱伝導性金属が使用さ
れるので、リング11が不要となる。
Rings 10 and 11 are attached to the side surfaces of the substrate 2 and the heat dissipation plate 7 by brazing or the like, and a frame member 9 is attached to the rings 10 and 11 by electric welding such as seam welding. Here, when the heat dissipation plate 7 does not require insulation, the ring 11 is not necessary because a high heat conductive metal is used.

【0014】チップキャリアを上記のような構造とする
ことによって、半田バンプ6によるLSI1と基板2と
の半田付けや、半田8によるLSI1と放熱板7との半
田付けにフラックスを用いても、枠部材9を取付ける前
にフラックスを洗浄することができるので、フラックス
の残渣によって問題が生ずることはない。
With the above structure of the chip carrier, even if flux is used for soldering the LSI 1 and the substrate 2 with the solder bumps 6 or soldering the LSI 1 and the heat sink 7 with the solder 8, the frame can be used. Since the flux can be cleaned before mounting the member 9, the residue of the flux does not cause a problem.

【0015】また、LSI1の裏面に直接放熱板7を半
田付けしても、放熱性が低下することはない。さらに、
LSI1の厚みのバラツキやLSI1の半田バンプ6や
半田8の厚さのバラツキを枠部材9の幅方向で吸収する
ことができるため、従来のようなAlNキャップの深さ
に対する制約がなくなる。
Even if the heat radiation plate 7 is directly soldered to the back surface of the LSI 1, the heat radiation performance does not deteriorate. further,
Since the variation in the thickness of the LSI 1 and the variation in the thickness of the solder bumps 6 and the solder 8 of the LSI 1 can be absorbed in the width direction of the frame member 9, there is no conventional limitation on the depth of the AlN cap.

【0016】図2〜図4は本発明の一実施例によるチッ
プキャリアの製作方法を示す図である。これら図1〜図
4を用いて本発明の一実施例によるチップキャリアの製
作方法について説明する。
2 to 4 are views showing a method of manufacturing a chip carrier according to an embodiment of the present invention. A method of manufacturing a chip carrier according to an embodiment of the present invention will be described with reference to FIGS.

【0017】まず、基板2のパッド3にフラックスを塗
布し、LSI1の半田バンプ6を重ねて加熱することで
基板2にLSI1を半田付けする。この後に、LSI1
と基板2との半田付け部分を洗浄してフラックスを洗い
取る。
First, the flux is applied to the pads 3 of the substrate 2 and the solder bumps 6 of the LSI 1 are overlaid and heated to solder the LSI 1 to the substrate 2. After this, LSI1
The soldered portion of the board 2 and the board 2 is washed to remove the flux.

【0018】次に、フラックスを塗布したシート状の半
田8をLSI1の裏面に乗せ、この半田8の上に放熱板
7を乗せて加熱し、LSI1に放熱板7を半田付けす
る。このとき、放熱板7のセンタと基板2のセンタとが
ずれないようにするために適当な治具が必要になる。こ
こで、基板2へのLSI1の半田付けとLSI1への放
熱板7の半田付けとを分けて2回の半田付けを行うよう
にしたが、基板2に対するLSI1および放熱板7の位
置決めを行えるような適当な治具を用いれば、1回の半
田付けで基板2へのLSI1の半田付けとLSI1への
放熱板7の半田付けとを行うことができる。
Next, a sheet-shaped solder 8 coated with flux is placed on the back surface of the LSI 1, and a heat sink 7 is placed on the solder 8 and heated to solder the heat sink 7 to the LSI 1. At this time, an appropriate jig is required to prevent the center of the heat sink 7 and the center of the substrate 2 from being displaced. Here, the soldering of the LSI 1 to the substrate 2 and the soldering of the heat sink 7 to the LSI 1 are separately performed, but the LSI 1 and the heat sink 7 can be positioned with respect to the substrate 2. If an appropriate jig is used, the LSI 1 can be soldered to the substrate 2 and the heat sink 7 can be soldered to the LSI 1 by soldering once.

【0019】この状態で、半田付け後の外観チェックお
よび電気テストを行う。この外観チェックおよび電気テ
ストで洗浄不足によるフラックス残滓や半田付けの異
常、あるいは電気的なオープン/ショート不良などがあ
れば、再洗浄や再取付けなどを行う。
In this state, a visual check and an electrical test after soldering are performed. If there is flux residue or soldering abnormality due to insufficient cleaning in this appearance check or electrical test, or an electrical open / short defect, etc., reclean or reattach.

【0020】基板2へのLSI1の半田付けやLSI1
への放熱板7の半田付けを行った後に、基板2の側面お
よび放熱板7の側面にリボン状の薄板である枠部材9を
当てる[図2(a),(b)参照]。この枠部材9の上
にローラ電極12a,12bを当てて回転させ、ローラ
電極12a,12bを基板2の側面および放熱板7の側
面に沿って、すなわち矢印Aの方向に移動させてシーム
溶接を行い、基板2の側面および放熱板7の側面に枠部
材9を接合する[図3(a),(b)参照]。
Soldering the LSI 1 to the substrate 2 and the LSI 1
After soldering the heat sink 7 to the heat sink 7, the frame member 9 which is a ribbon-shaped thin plate is applied to the side surface of the substrate 2 and the side surface of the heat sink 7 [see FIGS. 2 (a) and 2 (b)]. The roller electrodes 12a and 12b are applied to the frame member 9 and rotated, and the roller electrodes 12a and 12b are moved along the side surface of the substrate 2 and the side surface of the heat dissipation plate 7, that is, in the direction of arrow A to perform seam welding. Then, the frame member 9 is joined to the side surface of the substrate 2 and the side surface of the heat sink 7 [see FIGS. 3 (a) and 3 (b)].

【0021】LSI1や半田バンプ6、および半田8の
厚さの合計のバラツキは約100 μmあるが、放熱板7の
厚さを1mm程度にすれば、シーム溶接の特性上そのバ
ラツキを吸収することができ、半田でシールする場合の
問題はない。
The total variation in the thickness of the LSI 1, the solder bumps 6, and the solder 8 is about 100 μm, but if the thickness of the heat sink 7 is set to about 1 mm, the variation can be absorbed due to the characteristics of seam welding. There is no problem when soldering is used.

【0022】基板2および放熱板7の周囲を一周した後
に、ローラ電極12a,12bを矢印Bの方向に移動さ
せてつばの部分のシーム溶接を行うことによってチップ
キャリアが出来上がる[図4(a),(b)参照]。
A chip carrier is completed by moving the roller electrodes 12a and 12b in the direction of arrow B after the substrate 2 and the heat radiating plate 7 are made to go around, and seam welding of the collar portion [FIG. 4 (a)]. , (B)].

【0023】このように、基板2へのLSI1の半田付
けやLSI1への放熱板7の半田付けを行った後に、基
板2の側面および放熱板7の側面に枠部材9をシーム溶
接などの電気溶接で接合するようにすることによって、
基板2へのLSI1の半田付けやLSI1への放熱板7
の半田付けをフラックスを用いて確実に行うことができ
る。また、LSI1の高さや半田バンプ6、および半田
8の厚さによる高さのバラツキを、枠部材9の幅方向で
容易に吸収することができる。
After soldering the LSI 1 to the board 2 and the heat sink 7 to the LSI 1 in this manner, the frame member 9 is electrically connected to the side surface of the board 2 and the side surface of the heat sink 7 by seam welding or the like. By joining by welding,
Soldering the LSI 1 to the board 2 and heat sink 7 to the LSI 1
The soldering can be surely performed using flux. Further, variations in the height of the LSI 1 and the heights of the solder bumps 6 and the solder 8 can be easily absorbed in the width direction of the frame member 9.

【0024】尚、本発明の一実施例では枠部材9にリボ
ン状の薄板を用いているが、予め枠状とした枠部材を基
板2や放熱板7の周囲にはめ込んだ後に電気溶接で接合
してもよく、これに限定されない。
Although a ribbon-shaped thin plate is used for the frame member 9 in one embodiment of the present invention, a frame-shaped frame member is preliminarily fitted around the substrate 2 and the heat dissipation plate 7 and then joined by electric welding. However, the present invention is not limited to this.

【0025】[0025]

【発明の効果】以上説明したように本発明によれば、集
積回路との実装面に対して直交する基板の側面と、集積
回路との接合面に対して直交する放熱板の側面とに対し
て各々の周囲を枠部材で同時に接合して封止するように
することによって、フラックスを用いて半田付けを確実
に行うことができ、LSIなどの接合における高さのバ
ラツキを容易に吸収することができるという効果があ
る。
As described above, according to the present invention, the side surface of the substrate orthogonal to the mounting surface with the integrated circuit and the side surface of the heat sink orthogonal to the bonding surface with the integrated circuit are provided. By using a frame member to simultaneously bond and seal each periphery, soldering can be reliably performed using flux, and variations in height in bonding such as LSI can be easily absorbed. There is an effect that can be.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の一実施例の縦断面図である。FIG. 1 is a vertical sectional view of an embodiment of the present invention.

【図2】本発明の一実施例によるチップキャリアの製作
方法を示す図である。
FIG. 2 is a diagram showing a method of manufacturing a chip carrier according to an embodiment of the present invention.

【図3】本発明の一実施例によるチップキャリアの製作
方法を示す図である。
FIG. 3 is a diagram showing a method of manufacturing a chip carrier according to an embodiment of the present invention.

【図4】本発明の一実施例によるチップキャリアの製作
方法を示す図である。
FIG. 4 is a diagram showing a method of manufacturing a chip carrier according to an embodiment of the present invention.

【図5】従来例の縦断面図である。FIG. 5 is a vertical sectional view of a conventional example.

【符号の説明】[Explanation of symbols]

1 LSI 2 基板 7 放熱板 10,11 リング 12a,12b ローラ電極 1 LSI 2 substrate 7 heat sink 10 and 11 ring 12a and 12b roller electrode

Claims (1)

Translated fromJapanese
【特許請求の範囲】[Claims]【請求項1】 表面に複数のパッドが形成された基板
と、前記複数のパッドに複数のバンプを電気的に接続し
て前記基板上に実装される集積回路と、前記基板との実
装面に対向する前記集積回路の裏面に接合され、前記集
積回路で発生する熱を放散する放熱板と、前記集積回路
との実装面に対して直交する前記基板の側面と、前記集
積回路との接合面に対して直交する前記放熱板の側面と
に対して各々の周囲を同時に接合して封止する枠部材と
からなることを特徴とするチップキャリア。
1. A substrate having a plurality of pads formed on a surface thereof, an integrated circuit mounted on the substrate by electrically connecting a plurality of bumps to the plurality of pads, and a mounting surface of the substrate. A heat radiating plate that is bonded to the back surface of the integrated circuit and that dissipates heat generated in the integrated circuit, a side surface of the substrate that is orthogonal to a mounting surface of the integrated circuit, and a bonding surface of the integrated circuit. A chip carrier comprising: a side surface of the heat dissipation plate that is orthogonal to the frame and a frame member that simultaneously seals and seals each of the sides.
JP26716991A1991-09-181991-09-18 Chip carrierExpired - LifetimeJP2712939B2 (en)

Priority Applications (1)

Application NumberPriority DateFiling DateTitle
JP26716991AJP2712939B2 (en)1991-09-181991-09-18 Chip carrier

Applications Claiming Priority (1)

Application NumberPriority DateFiling DateTitle
JP26716991AJP2712939B2 (en)1991-09-181991-09-18 Chip carrier

Publications (2)

Publication NumberPublication Date
JPH0582662Atrue JPH0582662A (en)1993-04-02
JP2712939B2 JP2712939B2 (en)1998-02-16

Family

ID=17441064

Family Applications (1)

Application NumberTitlePriority DateFiling Date
JP26716991AExpired - LifetimeJP2712939B2 (en)1991-09-181991-09-18 Chip carrier

Country Status (1)

CountryLink
JP (1)JP2712939B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
US6002178A (en)*1997-11-121999-12-14Lin; Paul T.Multiple chip module configuration to simplify testing process and reuse of known-good chip-size package (CSP)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
US6002178A (en)*1997-11-121999-12-14Lin; Paul T.Multiple chip module configuration to simplify testing process and reuse of known-good chip-size package (CSP)

Also Published As

Publication numberPublication date
JP2712939B2 (en)1998-02-16

Similar Documents

PublicationPublication DateTitle
JP2982450B2 (en) Film carrier semiconductor device and method of manufacturing the same
JP4904767B2 (en) Semiconductor device
JPH1174403A (en) Semiconductor device
JP2915888B1 (en) Wiring board and manufacturing method thereof
JP3509507B2 (en) Mounting structure and mounting method of electronic component with bump
JP3462479B2 (en) Method and apparatus for sealing ceramic package of surface acoustic wave filter
JPH03255657A (en)Hybrid integrated circuit device
JP2712939B2 (en) Chip carrier
JP2000277557A (en)Semiconductor device
JP2002280415A (en) Semiconductor device
JP2936819B2 (en) IC chip mounting structure
JP2646989B2 (en) Chip carrier
JP2974819B2 (en) Semiconductor device and manufacturing method thereof
JPH05315481A (en)Film carrier semiconductor device and manufacturing method thereof
JPH07130900A (en) Semiconductor device
JP3959839B2 (en) Manufacturing method of semiconductor device
JP2735920B2 (en) Inverter device
JPS61198656A (en)Semiconductor device
JPH09246416A (en)Semiconductor device
JP2770664B2 (en) Semiconductor device and manufacturing method thereof
JP3424515B2 (en) Electronic component mounting structure
JPH10290140A (en)Surface acoustic wave device
JP2986661B2 (en) Method for manufacturing semiconductor device
JPH0810737B2 (en) Chip carrier and manufacturing method thereof
JPH0645763A (en)Printed wiring board

[8]ページ先頭

©2009-2025 Movatter.jp