JPH10107204A - Semiconductor device and its manufacture - Google Patents

Semiconductor device and its manufacture

Info

Publication number
JPH10107204A
JPH10107204A JP8256110A JP25611096A JPH10107204A JP H10107204 A JPH10107204 A JP H10107204A JP 8256110 A JP8256110 A JP 8256110A JP 25611096 A JP25611096 A JP 25611096A JP H10107204 A JPH10107204 A JP H10107204A
Authority
JP
Japan
Prior art keywords
semiconductor chip
circuit board
semiconductor
spacer
semiconductor device
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
JP8256110A
Other languages
Japanese (ja)
Inventor
Nobuitsu Takehashi
信逸 竹橋
Hiroaki Fujimoto
博昭 藤本
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP8256110A priority Critical patent/JPH10107204A/en
Publication of JPH10107204A publication Critical patent/JPH10107204A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H01L2224/16135Disposition the bump connector connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip
    • H01L2224/16145Disposition the bump connector connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip the bodies being stacked

Abstract

PROBLEM TO BE SOLVED: To prevent deterioration in reliability of in a stacked semiconductor chip due to deformation a circuit substrate when a stacked member obtained by stacking and electrically connecting a plurality of semiconductor chips is mounted on the circuit substrate through a resin. SOLUTION: This semiconductor device comprises a first semiconductor chip 2, a second semiconductor chip 3 stacked on the first semiconductor chip 2 and is electrically connected to the first semiconductor chip 2, and a circuit substrate 1 fixed to the first semiconductor chip 2 through a resin 5. An elastic spacer 6 having an opening 12 is arranged between the first semiconductor chip 2 and the circuit substrate 1.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、複数個の半導体チ
ップが積層された半導体装置に関するものであり、特に
上記のように形成された半導体装置を回路基板に固着す
る場合の半導体装置及びその製造方法に関するものであ
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a semiconductor device in which a plurality of semiconductor chips are stacked, and more particularly to a semiconductor device in which the semiconductor device formed as described above is fixed to a circuit board and its manufacture. It is about the method.

【0002】[0002]

【従来の技術】近年の電子機器はマルチメディア時代を
むかえ、より小型、軽量、薄型化が求められている。こ
のため、電子機器の半導体チップの実装形態はパッケー
ジング実装からベアチップ実装に移行しつつあり、具体
的には、実装密度の高密度化を達成すべく、半導体チッ
プのパッドと回路基板の電極との接続は、ワイヤボンデ
ィング方式からフリップチップ方式が用いられる傾向に
ある。
2. Description of the Related Art In recent years, electronic devices have been required to be smaller, lighter, and thinner in the multimedia age. For this reason, the mounting form of semiconductor chips for electronic devices is shifting from packaging mounting to bare chip mounting.Specifically, in order to achieve a higher mounting density, the pads of the semiconductor chip and the electrodes of the circuit board have to be mounted. For the connection of, there is a tendency that the flip chip method is used instead of the wire bonding method.

【0003】また、一方では電子機器および半導体チッ
プの低コスト化と電子機器の高機能化をはかるため、半
導体チップの内部回路を機能分割して機能の異なる複数
個の半導体チップとし、この複数個の異種の半導体チッ
プを積層して積層体を形成して実装する方法が用いられ
ている。
On the other hand, in order to reduce the cost of electronic equipment and semiconductor chips and to increase the functionality of electronic equipment, the internal circuit of the semiconductor chip is divided into a plurality of semiconductor chips having different functions. A method of stacking different types of semiconductor chips to form a stacked body and mounting the same is used.

【0004】図5は上記した異種の半導体チップを積層
して実装した後、それらを回路基板へ実装した際の半導
体装置の断面図を示したものである。図5において、2
0は回路基板、21は第1の半導体チップ、22は第1
の半導体チップ21上に積層された第2の半導体チップ
(フリップチップ接続されている)、23は第1の半導
体チップ21及び第2の半導体チップ22に形成された
パッド、24は第1の半導体チップ21のパッドと第2
の半導体チップのパッド間を接続する際に介されるバン
プである。
FIG. 5 is a cross-sectional view of a semiconductor device when the above-mentioned different types of semiconductor chips are stacked and mounted, and then mounted on a circuit board. In FIG. 5, 2
0 is a circuit board, 21 is a first semiconductor chip, 22 is a first semiconductor chip.
A second semiconductor chip (flip-chip connected) laminated on the first semiconductor chip 21, a pad 23 formed on the first semiconductor chip 21 and the second semiconductor chip 22, and a first semiconductor chip 24. The pad of the chip 21 and the second
Bumps used to connect pads of the semiconductor chip.

【0005】図5(a)において回路基板20の材料に
は低コスト化の目的として一般的にガラス/エポキシが
用いられる。第1および第2の半導体チップ21、22
の素子形成面には第1および第2の半導体チップ21、
22の素子形成面を対向させた際、それぞれ対向する微
小なパッド23が設けられており、第1および第2の半
導体チップ21、22の電気的な接続は、パッド23に
形成したはんだあるいはAu等の材料からなる微小なバ
ンプ24を介して行われ、バンプ24により接続された
第1および第2の半導体チップ21、22の間には素子
形成表面を外部環境からの保護のため樹脂25が充填さ
れている。また、第1の半導体チップ22の周囲には、
回路基板20の電極26と電気的に接続するボンディン
グパッド27が設けられており、第1および第2の半導
体チップ21、22を積層した積層体をエポキシ樹脂等
からなる導電性接着樹脂28により回路基板20へ直接
ダイボンドし、回路基板の電極とボンディングワイヤ2
9により電気的な接続が行われている。
In FIG. 5A, glass / epoxy is generally used for the material of the circuit board 20 for the purpose of cost reduction. First and second semiconductor chips 21 and 22
The first and second semiconductor chips 21,
When the element forming surfaces of the semiconductor chips 22 are opposed to each other, opposed minute pads 23 are provided. The electrical connection between the first and second semiconductor chips 21 and 22 is made by solder or Au formed on the pads 23. A resin 25 is provided between the first and second semiconductor chips 21 and 22 connected by the bumps 24 to protect the element formation surface from the external environment. Is filled. In addition, around the first semiconductor chip 22,
A bonding pad 27 that is electrically connected to the electrode 26 of the circuit board 20 is provided, and a laminate of the first and second semiconductor chips 21 and 22 is formed by a conductive adhesive resin 28 made of epoxy resin or the like. Die-bonding directly to the substrate 20, the electrode of the circuit board and the bonding wire 2
9, an electrical connection is made.

【0006】[0006]

【発明が解決しようとする課題】しかしながら、上記し
た従来の半導体装置においては下記に示すような課題を
有していた。
However, the above-mentioned conventional semiconductor device has the following problems.

【0007】まず第1に、電子機器の小型、軽量、薄型
と低コスト化をはかるため、電子機器の回路基板20に
は上記したようにガラス/エポキシからなるプリント基
板が用いられているわけであるが、図5(b)に示すよ
うに回路基板20に横方向からの外力G、G’が加わっ
た際(例えば積層体において、第1の半導体チップの裏
面にコネクタが形成されている場合において、そのコネ
クタを別の基板に接続する際等)、回路基板20に曲げ
変形σが生じてしまう。この時、回路基板20に第1の
半導体チップ21をダイボンドする導電性接着樹脂28
(例えばエポキシ樹脂)の弾性率が高いため、回路基板
20の曲げ変形がそのまま第1の半導体チップ21に加
わり、回路基板20と同じように第1の半導体チップ2
1に曲げ変形が生じてしまう。上記のように第1の半導
体チップ21に曲げ変形が生じると、その曲げ応力が微
小なバンプ24に加わり、結果としてバンプ24で接続
された第1および第2の半導体チップ21、22のパッ
ド23の接続不良が発生し、電子機器の信頼性が著しく
低下する。
First, in order to reduce the size, weight, thickness and cost of electronic equipment, a printed circuit board made of glass / epoxy is used for the circuit board 20 of the electronic equipment as described above. However, as shown in FIG. 5B, when external forces G and G ′ are applied to the circuit board 20 from the lateral direction (for example, when a connector is formed on the back surface of the first semiconductor chip in the laminate) In such a case, when the connector is connected to another board, for example), bending deformation σ occurs in the circuit board 20. At this time, the conductive adhesive resin 28 for die-bonding the first semiconductor chip 21 to the circuit board 20 is used.
Since the elastic modulus of the epoxy resin (eg, epoxy resin) is high, the bending deformation of the circuit board 20 is applied to the first semiconductor chip 21 as it is, and the first semiconductor chip 2
Bending deformation occurs in 1. When bending deformation occurs in the first semiconductor chip 21 as described above, the bending stress is applied to the minute bumps 24, and as a result, the pads 23 of the first and second semiconductor chips 21 and 22 connected by the bumps 24. Connection failure occurs, and the reliability of the electronic device is significantly reduced.

【0008】第2に、外力G、G’による回路基板20
の曲げ変形σが第1の半導体チップ21に加わるため、
第1および第2の半導体チップ21、22の電気特性が
変動し、電子機器の性能が低下する。具体的には、半導
体チップに伸びが生じるため、半導体チップに形成され
た抵抗の値が変化し、トランジスタ等の場合にはしきい
値電圧が変化してしまう。
[0008] Second, the circuit board 20 by external force G, G '
Is applied to the first semiconductor chip 21,
The electrical characteristics of the first and second semiconductor chips 21 and 22 fluctuate, and the performance of the electronic device decreases. Specifically, since the semiconductor chip expands, the value of the resistor formed on the semiconductor chip changes, and in the case of a transistor or the like, the threshold voltage changes.

【0009】第3に、回路基板の外力による曲げ変形に
対処するための手段として基板剛性の高いセラミック基
板を適用する方法が考えられるわけであるが、セラミッ
ク基板はガラス/エポキシ基板と比較して高価であり、
工程数も増大してしまう。
Third, as a means for coping with bending deformation of the circuit board due to external force, a method of applying a ceramic board having a high board rigidity can be considered. The ceramic board is compared with a glass / epoxy board. Expensive and
The number of steps also increases.

【0010】本願発明は上記問題点に鑑み、複数個の半
導体チップがフリップチップ接続された半導体装置を曲
げ変形を生じやすいガラス/エポキシ樹脂などの材料で
形成された回路基板に対してベアチップ実装する構造に
おいて、特に曲げ変形が回路基板に対して与えられるこ
とに起因して半導体チップに対して曲げ変形が加わるこ
とによるパッド部の接続不良および、半導体チップの電
気特性変動を発生させることなく、電子機器に信頼性、
機能低下が生じない回路基板への半導体チップのダイボ
ンドを低コストに実現することの可能な半導体装置及び
その製造方法を提供することを目的とする。
SUMMARY OF THE INVENTION In view of the above problems, the present invention mounts a semiconductor device in which a plurality of semiconductor chips are flip-chip connected to a circuit board made of a material such as glass / epoxy resin or the like which is easily bent and deformed. In the structure, in particular, it is possible to prevent the connection failure of the pad portion due to the bending deformation applied to the semiconductor chip due to the bending deformation being applied to the circuit board, and to prevent the electrical characteristics of the semiconductor chip from fluctuating. Equipment reliability,
It is an object of the present invention to provide a semiconductor device and a method of manufacturing the same, which can realize die bonding of a semiconductor chip to a circuit board which does not cause functional deterioration at low cost.

【0011】[0011]

【課題を解決するための手段】上記の目的を達成するた
めに本発明の半導体装置は、回路基板と半導体チップと
の接着固定を樹脂を用いて行い、樹脂の接着面積と低弾
性樹脂層の厚みを弾性体のスペーサで制御し、半導体チ
ップを回路基板に搭載する。これにより樹脂および弾性
ゴムシートからなるスペーサで回路基板の外力による曲
げ変形によって生じる曲げ応力を吸収し、半導体チップ
への曲げ応力を皆無となり、バンプによるフリップチッ
プ接続で積層化実装された半導体チップ同士のパッド部
の接続不良を発生させることがない。
In order to achieve the above object, a semiconductor device according to the present invention is characterized in that a circuit board and a semiconductor chip are bonded and fixed by using a resin, and the bonding area of the resin and the low elastic resin layer are reduced. The thickness is controlled by an elastic spacer, and the semiconductor chip is mounted on a circuit board. This allows the spacer made of resin and elastic rubber sheet to absorb the bending stress generated by the bending deformation due to the external force of the circuit board, eliminating the bending stress on the semiconductor chip, and connecting the semiconductor chips stacked and mounted by flip chip connection using bumps. The connection failure of the pad portion does not occur.

【0012】[0012]

【発明の実施の形態】以下に、本発明の実施の形態にお
ける半導体装置及びその製造方法について図面を参照し
ながら説明する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a semiconductor device and a method of manufacturing the same according to an embodiment of the present invention will be described with reference to the drawings.

【0013】図1は本発明の半導体装置の構成を分解し
て示した斜視図である。図1において1はガラス/エポ
キシ樹脂からなる回路基板、2は第1の半導体チップ、
3は第1の半導体チップ上に積層して形成された第2の
半導体チップ、4は第1の半導体チップ2に形成された
ボンディングパッド、5はシリコーンゴム等の低弾性導
電性樹脂、6は弾性ゴムシートからなる弾性体のスペー
サ、7は回路基板の電極を示している。
FIG. 1 is an exploded perspective view showing the structure of a semiconductor device according to the present invention. In FIG. 1, 1 is a circuit board made of glass / epoxy resin, 2 is a first semiconductor chip,
Reference numeral 3 denotes a second semiconductor chip formed by stacking on the first semiconductor chip, 4 denotes a bonding pad formed on the first semiconductor chip 2, 5 denotes a low-elasticity conductive resin such as silicone rubber, and 6 denotes Elastic spacers 7 made of an elastic rubber sheet indicate electrodes on the circuit board.

【0014】図1について更に詳細に説明すると、第1
の半導体チップの一主面に第2の半導体チップがフリッ
プチップ実装された積層体は低弾性導電性樹脂を介して
回路基板7に接着される(すなわち、第1の半導体チッ
プの裏面を低弾性導電性樹脂により回路基板に固着す
る)。その際、低弾性導電性樹脂の厚さおよび接着面積
を制御するため所定の開口部を有したスペーサ6の開口
部内に低弾性導電性樹脂を塗布し、第2の半導体チップ
がフリップチップ実装された第1の半導体チップ側から
積層体を接着する。これにより、スペーサ自身の厚みt
で低弾性導電性樹脂層の厚みを、スペーサの開口部の大
きさで接着面積が高精度に制御できるものである。従っ
て、積層体における第1の半導体チップの裏面から低弾
性導電性樹脂がはみ出すことがなく、この低弾性導電性
樹脂が電極7に付着することも完全に防止することがで
きる。
FIG. 1 will be described in more detail.
The laminate in which the second semiconductor chip is flip-chip mounted on one main surface of the semiconductor chip is bonded to the circuit board 7 via a low-elasticity conductive resin (that is, the back surface of the first semiconductor chip has low elasticity). It is fixed to the circuit board by the conductive resin). At this time, in order to control the thickness and adhesion area of the low elasticity conductive resin, the low elasticity conductive resin is applied to the inside of the opening of the spacer 6 having a predetermined opening, and the second semiconductor chip is flip-chip mounted. The laminated body is bonded from the first semiconductor chip side. Thereby, the thickness t of the spacer itself is obtained.
Thus, the bonding area can be controlled with high precision by controlling the thickness of the low elasticity conductive resin layer by the size of the opening of the spacer. Therefore, the low-elasticity conductive resin does not protrude from the back surface of the first semiconductor chip in the laminate, and it is possible to completely prevent the low-elasticity conductive resin from adhering to the electrode 7.

【0015】次に以下では、上記した図1に示す本発明
の実施の形態における半導体装置の製造方法について図
2を参照しながら説明する。
Next, a method of manufacturing the semiconductor device according to the embodiment of the present invention shown in FIG. 1 will be described with reference to FIG.

【0016】まず図2(a)に示すように、電極7が形
成された回路基板1の半導体チップ搭載領域にシリコン
ゴム等などの弾性率が低い材料からなるシート状のスペ
ーサ6を配置して図2(b)に示す構成を得る。この
時、シート状のスペーサ6の厚みは50〜100μm
で、後に第1の半導体チップを回路基板1と接着するた
めの低弾性導電性樹脂層の厚みはシート状のスペーサの
厚みを変化させることにより任意の厚みに制御できるわ
けである。また、第1の半導体チップと回路基板1の接
着面積についても、シート状のスペーサ6に設けられた
開口部の大きさを変えることにより設定することが可能
である。
First, as shown in FIG. 2A, a sheet-like spacer 6 made of a material having a low elastic modulus, such as silicon rubber, is disposed in a semiconductor chip mounting area of the circuit board 1 on which the electrodes 7 are formed. The configuration shown in FIG. 2B is obtained. At this time, the thickness of the sheet-like spacer 6 is 50 to 100 μm.
Thus, the thickness of the low-elasticity conductive resin layer for later bonding the first semiconductor chip to the circuit board 1 can be controlled to an arbitrary thickness by changing the thickness of the sheet-shaped spacer. Further, the bonding area between the first semiconductor chip and the circuit board 1 can also be set by changing the size of the opening provided in the sheet-like spacer 6.

【0017】次に図2(c)に示すように、シート状の
スペーサ6に設けられた開口部内に低弾性導電性樹脂5
を適量塗布する。その後、図2(d)に示すように第1
の半導体チップ2の主面に第2の半導体チップ3がフリ
ップチップ実装された積層体を回路基板1に圧接し、シ
ート状のスペーサ6に設けられた開口部内の低弾性導電
性樹脂5を押し広げ、低弾性導電性樹脂層5の厚みをシ
ート状のスペーサの厚みと同じになるように第2の半導
体チップの主面に第1の半導体チップを圧着、接着す
る。その後、図2(e)に示すように、低弾性導電性樹
脂5を硬化させ、さらに第1の半導体チップの電極4と
回路基板1上の電極7とをボンディングワイヤ29によ
り電気的に接続する。
Next, as shown in FIG. 2 (c), a low elastic conductive resin 5 is formed in an opening provided in the sheet-like spacer 6.
Is applied in an appropriate amount. Thereafter, as shown in FIG.
A laminate in which the second semiconductor chip 3 is flip-chip mounted on the main surface of the semiconductor chip 2 is pressed against the circuit board 1 to push the low elastic conductive resin 5 in the opening provided in the sheet-like spacer 6. The first semiconductor chip is crimped and bonded to the main surface of the second semiconductor chip so that the thickness of the low elastic conductive resin layer 5 is equal to the thickness of the sheet-shaped spacer. Thereafter, as shown in FIG. 2E, the low-elasticity conductive resin 5 is cured, and the electrodes 4 of the first semiconductor chip and the electrodes 7 on the circuit board 1 are electrically connected by bonding wires 29. .

【0018】上記ようにして形成された本発明の実施の
形態における半導体装置に外部から力が加わった時の挙
動について図3を参照しながら説明する。
The behavior when a force is applied from the outside to the semiconductor device according to the embodiment of the present invention formed as described above will be described with reference to FIG.

【0019】回路基板1に横方向からの外力G、G’が
加わって、回路基板1に曲げ変形σが生じても低弾性導
電性樹脂層5およびシート状のスペーサ6が回路基板1
の曲げ変形σを吸収変形して第1の半導体チップ2に回
路基板1の曲げ変形σを伝えることがない。なお、スペ
ーサ6の弾性率が回路基板の弾性率より低い場合、確実
に回路基板に生じた変形をスペーサ6により吸収するこ
とができる。
Even when external forces G and G 'are applied to the circuit board 1 from the lateral direction and the circuit board 1 undergoes a bending deformation σ, the low elastic conductive resin layer 5 and the sheet-like spacers 6 form the circuit board 1.
The bending deformation σ of the circuit board 1 is not transmitted to the first semiconductor chip 2 by absorbing the bending deformation σ. When the elastic modulus of the spacer 6 is lower than the elastic modulus of the circuit board, the deformation generated on the circuit board can be reliably absorbed by the spacer 6.

【0020】また、スペーサ6と回路基板とが直接固着
されていない場合、積層体における第1の半導体チップ
2はスペーサ6に形成された開口部の領域内のみで完全
に固定されており、その他の部分は樹脂によって固定さ
れていないため、回路基板に変形が生じたところで、ス
ペーサ6と回路基板1との間に空間が生じ、生じた変形
を第1の半導体チップ2が直接全てを受けることはな
い。これにより、バンプによるフリップチップ接続で積
層化実装された半導体チップ同士のパッド部の接続不良
を発生させることがない。
When the spacer 6 and the circuit board are not directly fixed, the first semiconductor chip 2 in the laminated body is completely fixed only in the region of the opening formed in the spacer 6. Is not fixed by the resin, a space is generated between the spacer 6 and the circuit board 1 when the circuit board is deformed, and the first semiconductor chip 2 receives all the generated deformation directly. There is no. As a result, there is no occurrence of connection failure of the pad portion between the semiconductor chips stacked and mounted by flip-chip connection using bumps.

【0021】また、上記の図1に示したような構造のシ
ート状のスペーサを用いる代わりに、開口部を図4に示
すように複数の開口部を設けたものを用いることも可能
である。
Instead of using the sheet-like spacer having the structure as shown in FIG. 1, it is also possible to use an opening having a plurality of openings as shown in FIG.

【0022】[0022]

【発明の効果】以上説明のとおり本願発明の効果は回路
基板と半導体チップとの接着固定を弾性ゴムシートから
なるスペーサおよび樹脂を介して行うことにより回路基
板の外力による曲げ変形によって生じる曲げ応力を吸収
し、剛性の高いセラミック基板を用いることなく、半導
体チップへの曲げ応力の伝達を効果的に止めることがで
きる。
As described above, the effect of the present invention is that the bending stress generated by the bending deformation due to the external force of the circuit board is achieved by bonding and fixing the circuit board and the semiconductor chip through the spacer and the resin made of the elastic rubber sheet. The transmission of bending stress to the semiconductor chip can be effectively stopped without using an absorbing and rigid ceramic substrate.

【0023】これにより、半導体チップへの曲げ応力に
よるフリップチップ接続で積層化実装された半導体チッ
プ同士のバンプ接続部の接続不良や曲げ応力による半導
体チップの電気特性の劣化を低コストでかつ簡便な方法
で防止する事ができる。また、回路基板のコストの増大
とセラミック基板の作製納期の長期化による電子機器の
コストおよび開発期間が著しく長期化することがなく極
めて効果的である。
[0023] This makes it possible to reduce the cost of the semiconductor device and to reduce the electrical characteristics of the semiconductor chip due to the poor connection of the bump connection portion between the semiconductor chips stacked and mounted by the flip chip connection due to the bending stress to the semiconductor chip and the bending stress. It can be prevented by the method. In addition, the cost and development period of the electronic device due to the increase in the cost of the circuit board and the prolonged production and delivery time of the ceramic substrate are extremely effective without significantly prolonging.

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

【図1】本発明の実施の形態における半導体装置の断面
FIG. 1 is a cross-sectional view of a semiconductor device according to an embodiment of the present invention.

【図2】本発明の実施の形態における半導体装置の製造
工程断面図
FIG. 2 is a sectional view showing a manufacturing process of the semiconductor device according to the embodiment of the present invention;

【図3】本発明の実施の形態における半導体装置の断面
FIG. 3 is a cross-sectional view of the semiconductor device according to the embodiment of the present invention;

【図4】本発明の実施の形態における半導体装置に用い
るシート状のスペーサの斜視図
FIG. 4 is a perspective view of a sheet-like spacer used in the semiconductor device according to the embodiment of the present invention;

【図5】従来の半導体装置の断面図FIG. 5 is a sectional view of a conventional semiconductor device.

【符号の説明】[Explanation of symbols]

1 回路基板 2 第1の半導体チップ 3 第2の半導体チップ 4 ボンディングパッド 5 低弾性導電性樹脂 6 スペーサ 7 電極 8 樹脂 9 バンプ 10 パッド 11 ボンディングワイヤ 12 開口部 DESCRIPTION OF SYMBOLS 1 Circuit board 2 1st semiconductor chip 3 2nd semiconductor chip 4 Bonding pad 5 Low elastic conductive resin 6 Spacer 7 Electrode 8 Resin 9 Bump 10 Pad 11 Bonding wire 12 Opening

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】第1の半導体チップと、前記第1の半導体
チップ上に積層されるとともに前記第1の半導体チップ
と電気的に接続された第2の半導体チップと、前記第1
の半導体チップと樹脂を介して固着された回路基板とを
有する半導体装置であって、前記第1の半導体チップと
前記回路基板との間に開口部を有する弾性体のスペーサ
を配置したことを特徴とする半導体装置。
A first semiconductor chip; a second semiconductor chip stacked on the first semiconductor chip and electrically connected to the first semiconductor chip;
A semiconductor device having a semiconductor chip and a circuit board fixed via a resin, wherein an elastic spacer having an opening is disposed between the first semiconductor chip and the circuit board. Semiconductor device.
【請求項2】スペーサの弾性率が回路基板の弾性率より
低いことを特徴とする請求項1に記載の半導体装置。
2. The semiconductor device according to claim 1, wherein the elastic modulus of the spacer is lower than the elastic modulus of the circuit board.
【請求項3】第1の半導体チップ及び前記第1の半導体
チップ上に積層されるとともに前記第1の半導体チップ
と電気的に接続された第2の半導体チップとを有する積
層体を樹脂を介して回路基板に固着する半導体装置の製
造方法であって、前記回路基板と前記積層体との間に開
口部を有する弾性体のスペーサを配置する工程と、前記
低弾性シートの開口部に樹脂を塗布する工程と、前記ス
ペーサ上部から前記積層体を加圧して前記積層体を前記
回路基板に固着する工程とを有する半導体装置の製造方
法。
3. A laminated body having a first semiconductor chip and a second semiconductor chip laminated on the first semiconductor chip and electrically connected to the first semiconductor chip via a resin. A method of manufacturing a semiconductor device that is fixed to a circuit board by attaching a spacer of an elastic body having an opening between the circuit board and the laminate, and applying a resin to the opening of the low elasticity sheet. A method of manufacturing a semiconductor device, comprising: a step of applying the laminate; and a step of pressing the laminate from above the spacer to fix the laminate to the circuit board.
JP8256110A 1996-09-27 1996-09-27 Semiconductor device and its manufacture Pending JPH10107204A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8256110A JPH10107204A (en) 1996-09-27 1996-09-27 Semiconductor device and its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8256110A JPH10107204A (en) 1996-09-27 1996-09-27 Semiconductor device and its manufacture

Publications (1)

Publication Number Publication Date
JPH10107204A true JPH10107204A (en) 1998-04-24

Family

ID=17288042

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8256110A Pending JPH10107204A (en) 1996-09-27 1996-09-27 Semiconductor device and its manufacture

Country Status (1)

Country Link
JP (1) JPH10107204A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1296374A1 (en) * 2001-09-14 2003-03-26 STMicroelectronics S.r.l. Process for bonding and electrically connecting microsystems integrated in several distinct substrates
JP2012216836A (en) * 2011-03-31 2012-11-08 Mitsubishi Chemicals Corp Three-dimensional integrated circuit laminate
US9508648B2 (en) 2011-03-31 2016-11-29 Mitsubishi Chemical Corporation Three-dimensional integrated circuit laminate, and interlayer filler for three-dimensional integrated circuit laminate
CN110006580A (en) * 2014-06-12 2019-07-12 意法半导体(格勒诺布尔2)公司 The stacking and electronic device of IC chip

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1296374A1 (en) * 2001-09-14 2003-03-26 STMicroelectronics S.r.l. Process for bonding and electrically connecting microsystems integrated in several distinct substrates
US7595223B2 (en) 2001-09-14 2009-09-29 Stmicroelectronics S.R.L. Process for bonding and electrically connecting microsystems integrated in several distinct substrates
JP2012216836A (en) * 2011-03-31 2012-11-08 Mitsubishi Chemicals Corp Three-dimensional integrated circuit laminate
US9508648B2 (en) 2011-03-31 2016-11-29 Mitsubishi Chemical Corporation Three-dimensional integrated circuit laminate, and interlayer filler for three-dimensional integrated circuit laminate
US9847298B2 (en) 2011-03-31 2017-12-19 Mitsubishi Chemical Corporation Three-dimensional integrated circuit laminate, and interlayer filler for three-dimensional integrated circuit laminate
CN110006580A (en) * 2014-06-12 2019-07-12 意法半导体(格勒诺布尔2)公司 The stacking and electronic device of IC chip
CN110006580B (en) * 2014-06-12 2021-03-09 意法半导体(格勒诺布尔2)公司 Stack of integrated circuit chips and electronic device

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