JPH05211209A - Film carrier tape - Google Patents

Film carrier tape

Info

Publication number
JPH05211209A
JPH05211209A JP434492A JP434492A JPH05211209A JP H05211209 A JPH05211209 A JP H05211209A JP 434492 A JP434492 A JP 434492A JP 434492 A JP434492 A JP 434492A JP H05211209 A JPH05211209 A JP H05211209A
Authority
JP
Japan
Prior art keywords
lead
carrier tape
groove
film carrier
bonding
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
JP434492A
Other languages
Japanese (ja)
Other versions
JP2757644B2 (en
Inventor
Kouji Ooshige
稿二 大重
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 Corp filed Critical NEC Corp
Priority to JP4004344A priority Critical patent/JP2757644B2/en
Publication of JPH05211209A publication Critical patent/JPH05211209A/en
Application granted granted Critical
Publication of JP2757644B2 publication Critical patent/JP2757644B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

PURPOSE:To obtain sufficient bonding strength by equalizing the distribution of depression force at a time when the lead of a film carrier tape and the electrode of a semiconductor element are bonded through thermocompression bonding. CONSTITUTION:A groove 1 is formed on a surface on the bonding tool 7 side of a section to be thermocompression-bonded in the front end section of the lead 2 of a film carrier tape through etching, etc. The groove 1 is formed in either one direction or both directions the parallel direction or the rectangular direction to the longitudinal direction of the lead 2.

Description

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

【0001】[0001]

【産業上の利用分野】本発明はフィルムキャリアテープ
に関し、特にフィルムキャリアテープのリード構造に関
する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film carrier tape, and more particularly to a lead structure of the film carrier tape.

【0002】[0002]

【従来の技術】従来のフィルムキャリアテープは、図4
(a)の断面図に示すように、スプロケットホールを持
ったポリイミドテープ基材4に銅等の金属箔を接着層3
を介して貼り合わせ、これにボンディングワイヤに相当
するリード2aのパターンをフォトエッチングにより形
成した後、金,錫または半田めっき等を施していた。そ
して、半導体素子の外部引き出し用電極上に形成された
突起型電極(バンプ)上に上述したリードパターンを重
ね合わせ、ボンディングツールにて熱圧着部9,9aを
加圧加熱してボンディングを行っていた。
2. Description of the Related Art A conventional film carrier tape is shown in FIG.
As shown in the sectional view of (a), a metal foil such as copper is adhered to a polyimide tape substrate 4 having a sprocket hole by an adhesive layer 3
After that, a pattern of the lead 2a corresponding to a bonding wire is formed by photoetching, and then gold, tin or solder plating is applied. Then, the above-mentioned lead pattern is superposed on the protruding electrodes (bumps) formed on the external extraction electrodes of the semiconductor element, and the thermocompression bonding portions 9 and 9a are heated under pressure by a bonding tool to perform bonding. It was

【0003】又は、上述のフィルムキャリアテープにリ
ードパターンを形成する際、図4(b)の断面図に示す
ように、リード2bの先端部にフォトエッチングにより
ハーフエッチングを施し、このリード先端部にバンプ5
aを形成した後、少なくとも一層のめっき層(例えば金
層)を設けていた。そして、半導体素子の外部引き出し
用電極上にこのリード2bのバンプ5aを重ね合わせ、
上からボンディングツールにより加圧加熱してボンディ
ングを行っていた。
Alternatively, when forming a lead pattern on the above film carrier tape, as shown in the sectional view of FIG. 4 (b), the tips of the leads 2b are half-etched by photoetching, and the tips of the leads are formed. Bump 5
After forming a, at least one plating layer (for example, a gold layer) was provided. Then, the bump 5a of the lead 2b is superposed on the external extraction electrode of the semiconductor element,
Bonding was performed by applying pressure and heating with a bonding tool from above.

【0004】[0004]

【発明が解決しようとする課題】上述した従来のフィル
ムキャリアテープは、そのリード先端部の熱圧着部位が
図4(a)に見られるようにフラットになっているの
で、例えば、図5(a),(c)に示すような平行工具
(ボンディングツール7と半導体素子基板6)による平
面ひずみ据込み(スラブ法など)による解析を応用し
て、図5(a)に示すリード2とバンプ5の圧着部位の
ツール圧下力分布σn を求めると、図6(a),
(c),図7(a),(b)に示すような不均一な分布
を示す結果が得られ、さらに、図6(a),(c)の場
合は、同図(b)に示す状態に置き換えて考えると、モ
ーメント荷重M=P・lが作用しているのと等価な状態
であり、従って、リード,バンプ,電極パッド及びバン
プより下の半導体素子基板に不均一なせん断破壊面にお
ける変形を強いている状態であった。ここで、Pは圧下
力分布を等価的に集中荷重に置き換えた力,lはモーメ
ントアームである。
In the conventional film carrier tape described above, the thermocompression bonding portion of the tip of the lead is flat as shown in FIG. 4 (a). ) And (c), the analysis by plane strain upsetting (slab method, etc.) by a parallel tool (bonding tool 7 and semiconductor element substrate 6) as shown in FIG. 5A is applied. When the tool rolling force distribution σ n at the crimping part of is calculated, as shown in FIG.
The results showing the non-uniform distribution as shown in (c), FIG. 7 (a), and (b) are obtained, and in the case of FIG. 6 (a) and (c), the result is shown in FIG. When it is considered as a state, it is a state equivalent to the moment load M = P · l acting, and therefore, the non-uniform shear fracture surface is present on the leads, bumps, electrode pads and the semiconductor element substrate below the bumps. It was in a state of being forced to deform. Here, P is a force equivalently replacing the rolling force distribution with a concentrated load, and l is a moment arm.

【0005】一般に、材料の破壊や塑性変形は、外部か
らの負荷によって生ずる材料内部の応力のせん断成分と
偏差応力成分とで引き起されるものであるから、外部か
らの負荷のエネルギが同じであれば、上述したせん断成
分や偏差成分を生ぜしめない様な均一な圧下力分布を形
成せしめることが重要である。したがって、上述の図6
および図7に見られる様な不均一な圧下力分布は、リー
ドとバンプ間およびバンプと電極パッド間に均一な塑性
接触を実現できないことになり、十分な接合強度が得ら
れにくいのと同時に、バンプより下の半導体素子基板に
対しバンプはがれ等のせん断破壊を助長するという欠点
があった。
Generally, the material fracture or plastic deformation is caused by the shear component and the deviated stress component of the stress inside the material caused by the load from the outside, so that the energy of the load from the outside is the same. If so, it is important to form a uniform rolling force distribution that does not cause the above shearing component and deviation component. Therefore, FIG.
The uneven distribution of the rolling force as shown in FIG. 7 makes it impossible to realize uniform plastic contact between the lead and the bump and between the bump and the electrode pad, and it is difficult to obtain sufficient bonding strength. There is a drawback in that shear failure such as bump peeling is promoted with respect to the semiconductor element substrate below the bump.

【0006】なお、図6,図7で用いられる|−σn
2k|は圧下力分布をせん断降伏応力で無次元化した値
の絶対値,x/aはリード幅方向の任意の位置(x)を
リード幅aにて無次元化した値,y/bはリード長手方
向の熱圧着部位の任意の位置(y)を熱圧着部位寸法b
にて無次元化した値である。
[−σ n / used in FIGS. 6 and 7]
2k | is the absolute value of the dimensionless value of the rolling force distribution due to shear yield stress, x / a is the dimensionless value of the lead width a at any position (x) in the lead width direction, and y / b is The arbitrary position (y) of the thermocompression bonding site in the longitudinal direction of the lead is measured by the thermocompression bonding site dimension b.
It is a dimensionless value.

【0007】[0007]

【課題を解決するための手段】本発明のフィルムキャリ
アテープは、フィルムキャリアテープのリード先端部ま
た半導体素子上に設けられた外部引き出し用電極パッド
上のいずれか一方に設けられた突起型電極に対し、熱圧
着によりボンディングを行う際、フィルムキャリアテー
プのリード先端部の熱圧着を施される部位に、熱圧着時
の圧下力分布を均一化し、突起型電極とリード先端部の
熱圧着部位および突起型電極と電極パッドとが均一な接
触および塑性変形がなされるように、エッチング等によ
る溝を有している。
The film carrier tape of the present invention has a projection type electrode provided on either the lead tip portion of the film carrier tape or an external extraction electrode pad provided on the semiconductor element. On the other hand, when performing bonding by thermocompression bonding, the pressure drop distribution during thermocompression bonding is made uniform at the parts of the film carrier tape where the thermocompression bonding is performed on the lead tips, and Grooves formed by etching or the like are provided so that the protruding electrodes and the electrode pads can be uniformly contacted and plastically deformed.

【0008】[0008]

【実施例】次に本発明について図面を参照して説明す
る。
The present invention will be described below with reference to the drawings.

【0009】図1は本発明の実施例1の図である。同図
(a)は半導体素子6に形成されたバンプ5にフィルム
キャリアテープに形成されたリード2を位置合わせて、
ボンディングツール7にて熱圧着を施すところのボンデ
ィング時の断面を表わしており、同図(b)はリード2
の熱圧着部位の近傍A部の詳細図で、ボンディングツー
ル7のエッジ部の熱圧着部9および9a、さらにリード
2に形成された溝1のおおよその位置関係を示したもの
である。本実施例では、リード2の溝1はツール7のエ
ッジ部に沿う位置にエッチングにより形成する。また、
同図(c)は、リード2の先端部分のみを三角法にて表
わした図である。本実施例に用いるリード幅aが80μ
m,熱圧着部位長さbが80μm,リード厚さhが35
μmで実施している。溝1の深さおよび幅は、それぞれ
深くかつ広い方が溝1の形成によって得られる自由表面
が大きくとれるので、その分だけリード2の長手方向に
発生する拘束力が低減されて良好な結果を得やすいので
あるが、実際にはリード2の強度的な信頼性の面から、
あるいは電気的特性の面から検討して最適値を決定す
る。
FIG. 1 is a diagram of a first embodiment of the present invention. In the same figure (a), the leads 2 formed on the film carrier tape are aligned with the bumps 5 formed on the semiconductor element 6,
The cross section at the time of bonding where thermocompression bonding is performed by the bonding tool 7 is shown in FIG.
FIG. 3 is a detailed view of a portion A in the vicinity of the thermocompression bonded portion, showing the approximate positional relationship between the thermocompression bonded portions 9 and 9a at the edge portion of the bonding tool 7 and the groove 1 formed in the lead 2. In this embodiment, the groove 1 of the lead 2 is formed by etching along the edge of the tool 7. Also,
FIG. 3C is a diagram in which only the tip portion of the lead 2 is represented by trigonometry. The lead width a used in this embodiment is 80 μ.
m, thermocompression bonding length b is 80 μm, lead thickness h is 35
Conducted in μm. As the depth and width of the groove 1 are respectively deeper and wider, the free surface obtained by forming the groove 1 can be larger, so that the restraining force generated in the longitudinal direction of the lead 2 can be reduced by that much, and a good result can be obtained. It is easy to obtain, but in reality, from the viewpoint of strength reliability of the lead 2,
Alternatively, the optimum value is determined by considering the electrical characteristics.

【0010】続いて、溝1を設けることの有意性を本実
施例に即して説明する。図5(a)はリード2およびバ
ンプ5の構造を模式的かつ立体的に表わした図であり、
同図(b)は視点Aから見た場合のボンディング時の力
の釣り合い状態を示した図である。これに、平行工具に
よる平面ひずみ据込みの解析手法の一つであるスラブ法
を応用してみると、この時の圧下力分布、すなわちリー
ド2の変形抵抗を示す分布σn は、図6(a)および
(d)に示されるようなリードとツール間あるいはリー
ドとバンプ間のまさつ係数μにより異なる不均一な分布
結果として得られ、さらに、これを力学的等価な状態に
置き換えると図6(b)に示される様に、バンプ5より
下の半導体素子基板6にモーメント荷重M=P・lが作
用し、せん断破壊面の形成を助長していることがわか
る。そこで、この不均一な圧下力分布を均一化させる為
に、図1に示すような溝を深さdがd1 <d2 <d3
る3通りの場合に分けして設定して、それぞれの深さに
ついて解析すると、図9(a)に示される圧下力分布結
果が得られ、これより、深さが深くなるほど、すなわち
リード2の自由表面が増すほど圧下力分布が平均化され
ていくことがわかる。
Next, the significance of providing the groove 1 will be described with reference to this embodiment. FIG. 5A is a diagram schematically and three-dimensionally showing the structure of the lead 2 and the bump 5.
FIG. 3B is a diagram showing a state of balance of forces during bonding when viewed from the viewpoint A. When the slab method, which is one of the analysis methods of plane strain upsetting by a parallel tool, is applied to this, the rolling force distribution at this time, that is, the distribution σ n indicating the deformation resistance of the lead 2 is shown in FIG. 6 (a) and 6 (d) are obtained as non-uniform distribution results depending on the coefficient of friction μ between the lead and the tool or between the lead and the bump as shown in (a) and (d). As shown in (b), it is understood that the moment load M = P · l acts on the semiconductor element substrate 6 below the bump 5 to promote the formation of the shear fracture surface. Therefore, in order to make this non-uniform rolling force distribution uniform, the groove as shown in FIG. 1 is set separately for three cases where the depth d is d 1 <d 2 <d 3. When the depth is analyzed, the rolling force distribution result shown in FIG. 9A is obtained. From this, the rolling force distribution is averaged as the depth becomes deeper, that is, the free surface of the lead 2 increases. I understand.

【0011】図2は本発明の実施例2の図である。図1
(c)と同じく、リード2の先端部のみを三角法にて描
いたものである。実施例1と同様に溝1を設けるが、同
時にリード2の幅aに対してほぼその中央に直角に溝1
aを設けるものである。この溝1aを設けることの有意
性を以下に説明する。
FIG. 2 is a diagram of a second embodiment of the present invention. Figure 1
Similar to (c), only the tip of the lead 2 is drawn by trigonometry. The groove 1 is provided as in the first embodiment, but at the same time, the groove 1 is formed substantially at the center of the width a of the lead 2 at a right angle.
a is provided. The significance of providing the groove 1a will be described below.

【0012】実施例1の場合と同様に図5(c)は、図
5(a)に示すリード2,バンプ5の模式的構造図で、
視点Bから見た場合のボンディング時の力の釣り合い状
態を示した図である。これに、平行工具による平面ひず
み据込みの解析手法の一つであるスラブ法を応用する
と、この時の圧下力分布σn は図7(a)および(b)
に示される様なまさつ係数μにより異なる不均一な分布
として得られ、このことはバンプ5および半導体素子基
板6に対して、くさびを打ち込む様な状態と等価な状態
であることがわかる。図8はこの圧下力分布を3次元的
に表わした図である。
As in the case of the first embodiment, FIG. 5C is a schematic structural diagram of the lead 2 and the bump 5 shown in FIG. 5A.
FIG. 6 is a diagram showing a force balance state at the time of bonding when viewed from a viewpoint B. Applying the slab method, which is one of the analysis methods for plane strain upsetting by a parallel tool, to this, the rolling force distribution σ n at this time is shown in FIGS. 7 (a) and 7 (b).
It can be seen that different uneven distributions are obtained depending on the roughness coefficient μ as shown in FIG. 3, which is equivalent to a state where a wedge is driven into the bump 5 and the semiconductor element substrate 6. FIG. 8 is a diagram showing this rolling force distribution three-dimensionally.

【0013】そこで、この不均一な圧下力分布をできる
だけ均一化させ、リード2とバンプ5およびバンプ5と
それより下の電極パッドや半導体素子基板6との間に均
一な塑性接触・変形を生ぜしめる為に図2に示される様
な溝1aを設ける。この溝1aの深さdaをda1 <d
2 <da3 なる3通りの設定を行い、それぞれの場合
について解析すると、図9(b)に示される様な結果が
得られる。やはり、リード2に形成された溝1aによる
自由表面の領域が増すほど圧下分布は均一化される傾向
にあることがわかる。これによって、リード2の長手方
向の均一化だけでなく、幅方向に対する均一化も図れる
という利点がある。
Therefore, this nonuniform rolling force distribution is made as uniform as possible, and uniform plastic contact / deformation is generated between the leads 2 and the bumps 5, and between the bumps 5 and the electrode pads below the bumps 5 and the semiconductor element substrate 6. A groove 1a as shown in FIG. 2 is provided for tightening. The depth da of this groove 1a is set to da 1 <d
When three kinds of settings of a 2 <da 3 are set and each case is analyzed, the result as shown in FIG. 9B is obtained. Again, it can be seen that as the area of the free surface due to the groove 1a formed in the lead 2 increases, the reduction distribution tends to become more uniform. This has an advantage that not only the lead 2 can be made uniform in the longitudinal direction but also made uniform in the width direction.

【0014】図3は本発明の実施例3を三角法で示した
図である。溝1aは実施例2の場合と同じくリード2の
幅aに対してそのほぼ中央に設けるが、溝1bは実施例
1の場合の溝1を設けた位置、すなわち図1(b)にて
示したボンディグツール7のエッジ部に沿って形成した
位置よりも、よりリード2の先端側に設けることを特徴
としている。リード2の熱圧着部位においてボンディン
グツール7のエッジ部が接触する部分は、強度的に不安
定な部分となりやすいので、この部分にさらに溝を設け
るとさらに強度低下する恐れが生ずる。しかし、本実施
例ではこれを回避することが可能となる利点がある。
FIG. 3 is a diagram showing the third embodiment of the present invention by trigonometry. The groove 1a is provided approximately at the center of the width a of the lead 2 as in the case of the second embodiment, but the groove 1b is shown in the position where the groove 1 of the first embodiment is provided, that is, shown in FIG. It is characterized in that it is provided closer to the tip end side of the lead 2 than the position formed along the edge portion of the bonding tool 7. A portion of the lead 2 which is to be thermocompression-bonded with the edge portion of the bonding tool 7 is likely to be unstable in strength. Therefore, if a groove is further provided in this portion, the strength may further decrease. However, the present embodiment has an advantage that it is possible to avoid this.

【0015】[0015]

【発明の効果】以上説明したように本発明は、フィルム
キャリアテープのリード先端部の圧着を施される部位に
エッチング等による溝を有することにより、熱圧着時の
圧下力分布を均一化し、バンプとリード先端部の熱圧着
部位およびバンプと電極パッドとが均一な塑性接触およ
び変形を実現できて十分な接合強度が得られるのと同時
に、バンプ以下の半導体素子基板に対しバンプはがれ等
のせん断破壊を回避でき、かつその助長を抑制できる効
果がある。
As described above, according to the present invention, by providing a groove by etching or the like at the portion of the lead end portion of the film carrier tape to which the pressure is applied, the rolling force distribution during thermocompression bonding is made uniform, and And the bumps and electrode pads can be subjected to uniform plastic contact and deformation, and sufficient bonding strength can be obtained, and at the same time shear failure such as bump peeling to the semiconductor element substrate below the bumps. There is an effect that can be avoided and the promotion can be suppressed.

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

【図1】本発明の実施例1を示す図で、同図(a)は縦
断面図、同図(b)はそのA部詳細図、同図(c)はリ
ード先端部を三角法で示す図である。
1A and 1B are views showing a first embodiment of the present invention, in which FIG. 1A is a longitudinal sectional view, FIG. 1B is a detailed view of part A, and FIG. FIG.

【図2】本発明の実施例2を示す図で、リード先端部を
三角法で示す図である。
FIG. 2 is a diagram showing a second embodiment of the present invention and is a diagram showing a lead tip portion by trigonometry.

【図3】本発明の実施例3を示す図で、リード先端部を
三角法で示す図である。
FIG. 3 is a diagram showing a third embodiment of the present invention, and is a diagram showing a lead tip portion by trigonometry.

【図4】従来のフィルムキャリアテープのリード先端部
を示す図で、同図(a)は平板構造の縦断面図、同図
(b)はバンプ構造の縦断面図である。
4A and 4B are diagrams showing a lead tip portion of a conventional film carrier tape, wherein FIG. 4A is a vertical sectional view of a flat plate structure and FIG. 4B is a vertical sectional view of a bump structure.

【図5】リードとバンプの加圧状態を説明する図で、同
図(a)は立体図、同図(b)はその視点Aからの力の
釣合を示す図、同図(c)は視点Bからの力の釣合を示
す図である。
5 (a) and 5 (b) are views for explaining a pressing state of leads and bumps, in which FIG. 5 (a) is a three-dimensional view, FIG. FIG. 6 is a diagram showing a balance of forces from a viewpoint B.

【図6】リードとバンプの圧力下分布を説明する図で、
同図(a)は図5(b)における圧力下分布図、同図
(b)は同図(a)におけるせん断破壊面を示す図、同
図(c)は同図(a)の圧下力分布値を示す図である。
FIG. 6 is a diagram for explaining the pressure distribution of leads and bumps,
Fig. 5A is a pressure distribution diagram in Fig. 5B, Fig. 5B is a diagram showing the shear fracture surface in Fig. 5A, and Fig. 7C is a rolling force in Fig. 5A. It is a figure which shows a distribution value.

【図7】リードとバンプの圧下力分布を説明する図で、
同図(a)は図5(c)における圧下力分布図、、同図
(b)は同図(a)の圧下力分布値を示す図である。
FIG. 7 is a diagram for explaining the distribution of rolling force of leads and bumps.
5A is a rolling force distribution diagram in FIG. 5C, and FIG. 5B is a diagram showing rolling force distribution values in FIG. 5A.

【図8】図7の圧下力分布を3次元的に表わした図であ
る。
FIG. 8 is a diagram showing the rolling force distribution of FIG. 7 three-dimensionally.

【図9】本発明を実施した時の溝の深さの変化に対応し
た圧下力分布値を示す図で、同図(a)は図5(a)の
視点Aからの図、同図(b)は視点Bからの図である。
FIG. 9 is a diagram showing a rolling force distribution value corresponding to a change in groove depth when the present invention is carried out. FIG. 9A is a diagram from a viewpoint A of FIG. b) is a view from the viewpoint B.

【符号の説明】[Explanation of symbols]

1,1a,1b 溝 2,2a,2b リード 3 接着層 4 テープ基材 5,5a バンプ 6 半導体素子基板 7 ボンディングツール 8 電極パッド 9,9a 熱圧着部 a リード幅 b リード長手方向の熱圧着部位長さ d,da 溝深さ h リード厚さ l モーメントアーム M モーメント荷重 P 圧下力分布を等価集中荷重に置き換えた力 σn 圧下力分布 k せん断降伏応力 μ まさつ係数1,1a, 1b groove 2,2a, 2b lead 3 adhesive layer 4 tape base material 5,5a bump 6 semiconductor element substrate 7 bonding tool 8 electrode pad 9,9a thermocompression bonding area a lead width b lead thermocompression bonding area in the longitudinal direction Length d, da Groove depth h Lead thickness l Moment arm M Moment load P Force that replaces rolling force distribution with equivalent concentrated load σ n Rolling force distribution k Shear yield stress μ Measurement coefficient

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 フィルムキャリアテープのリード先端
部、又は半導体素子上に設けられた外部引き出し用電極
パッド上のいずれか一方に設けられた突起型電極を介し
て熱圧着により前記半導体素子を搭載するフィルムキャ
リアテープにおいて、前記フィルムキャリアテープのリ
ード先端部の熱圧着が施される部位のボンディングツー
ル側の面に、溝を形成したことを特徴とするフィルムキ
ャリアテープ。
1. The semiconductor element is mounted by thermocompression bonding via a projection type electrode provided on either one of a lead tip portion of a film carrier tape or an external extraction electrode pad provided on the semiconductor element. In the film carrier tape, a groove is formed on a surface of the lead end portion of the film carrier tape on which a thermocompression bonding is performed on the bonding tool side.
【請求項2】 前記溝が熱圧着時のボンディングツール
のエッジ部に沿う様に、かつフィルムキャリアテープの
リードの長手方向に対し直角に形成されている請求項1
記載のフィルムキャリアテープ、
2. The groove is formed along the edge of the bonding tool during thermocompression bonding and at a right angle to the longitudinal direction of the lead of the film carrier tape.
Film carrier tape described,
【請求項3】 前記溝に加えてほぼその中央部から前記
溝と直角にリード先端まで溝を形成した請求項1記載の
フィルムキャリアテープ。
3. The film carrier tape according to claim 1, wherein, in addition to the groove, a groove is formed from a substantially central portion thereof to a lead tip at a right angle to the groove.
【請求項4】 前記リードの長手方向に対し直角に形成
された溝が熱圧着時のボンディングツールのエッジ部よ
りリード先端寄りに形成されている請求項1記載のフィ
ルムキャリアテープ。
4. The film carrier tape according to claim 1, wherein a groove formed at a right angle to the longitudinal direction of the lead is formed closer to the tip of the lead than the edge portion of the bonding tool during thermocompression bonding.
JP4004344A 1992-01-14 1992-01-14 Film carrier tape Expired - Lifetime JP2757644B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4004344A JP2757644B2 (en) 1992-01-14 1992-01-14 Film carrier tape

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4004344A JP2757644B2 (en) 1992-01-14 1992-01-14 Film carrier tape

Publications (2)

Publication Number Publication Date
JPH05211209A true JPH05211209A (en) 1993-08-20
JP2757644B2 JP2757644B2 (en) 1998-05-25

Family

ID=11581815

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4004344A Expired - Lifetime JP2757644B2 (en) 1992-01-14 1992-01-14 Film carrier tape

Country Status (1)

Country Link
JP (1) JP2757644B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1179847A2 (en) * 2000-07-07 2002-02-13 Infineon Technologies AG Support for integrated circuit chips and method of producing the same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01112740A (en) * 1987-10-27 1989-05-01 Dainippon Printing Co Ltd Lead flame with protruding electrode
JPH0218955A (en) * 1988-07-07 1990-01-23 Mitsui High Tec Inc Lead frame for semiconductor device
JPH03174136A (en) * 1990-11-30 1991-07-29 Casio Comput Co Ltd Rear projection type screen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01112740A (en) * 1987-10-27 1989-05-01 Dainippon Printing Co Ltd Lead flame with protruding electrode
JPH0218955A (en) * 1988-07-07 1990-01-23 Mitsui High Tec Inc Lead frame for semiconductor device
JPH03174136A (en) * 1990-11-30 1991-07-29 Casio Comput Co Ltd Rear projection type screen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1179847A2 (en) * 2000-07-07 2002-02-13 Infineon Technologies AG Support for integrated circuit chips and method of producing the same
EP1179847A3 (en) * 2000-07-07 2003-02-12 Infineon Technologies AG Support for integrated circuit chips and method of producing the same
US6605864B2 (en) 2000-07-07 2003-08-12 Infineon Technologies Ag Support matrix for integrated semiconductors, and method for producing it

Also Published As

Publication number Publication date
JP2757644B2 (en) 1998-05-25

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