JP3795790B2 - Resin sealing method - Google Patents

Resin sealing method Download PDF

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Publication number
JP3795790B2
JP3795790B2 JP2001329951A JP2001329951A JP3795790B2 JP 3795790 B2 JP3795790 B2 JP 3795790B2 JP 2001329951 A JP2001329951 A JP 2001329951A JP 2001329951 A JP2001329951 A JP 2001329951A JP 3795790 B2 JP3795790 B2 JP 3795790B2
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Prior art keywords
mold
frame
resin
compression mold
compression
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JP2003127162A (en
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大 福岡
勇旗 黒
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株式会社サイネックス
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Description

【0001】
【発明の属する技術分野】
本発明は、例えば半導体素子を搭載した基板(基板、リードフレーム)等を樹脂で封止する樹脂封止方法に関する。
【0002】
【従来の技術】
従来の方法について図5乃至図7を用いて説明する。
【0003】
従来の樹脂封止方法は、固定上金型と、上下に可動する枠状金型と、この枠状金型の枠内に可動に嵌合する圧縮金型とからなる下型とから構成される金型の、上型と枠状金型との間に、半導体素子を搭載し、電気的接続をした配線板を挟み込む。
【0004】
上型および枠状金型、圧縮金型はヒータにより加熱されており、枠状金型と圧縮金型は昇降機構で昇降自在となっている。
【0005】
タブレット状に成形した熱硬化性樹脂(以下、樹脂タブレットという)を圧縮金型の上面に載置し、加熱溶融させ、圧縮金型で配線板方向に押し潰すことにより配線板と枠状金型と圧縮金型で形成されるキャビティC内に樹脂を充満させることで樹脂成形を成す。
【0006】
樹脂タブレットが圧縮される際の平面的な流動先端部の動きを図7に示す。
【0007】
また、圧縮金型を等速度で上昇させた際の流動先端部の流速変化を図5に示す。
【0008】
【発明が解決しようとする課題】
これらの図5及び図7からも明らかな様に、溶融状態の樹脂は最終段階で成形品の角部付近で急激に流速を増すことが判明している。半導体素子が図8に示すように一様に配置されている場合、角部付近の半導体素子は大きなせん断応力を受けることになり、素子と配線板との接合強度の低下や、電気的接合部の破壊を生じる問題があった。
【0009】
本発明は上記の課題を解決するためになされたものであり、半導体素子と配線板との接合強度の低下および電気的接合部の破壊を生じることなく、キャビティC内に配置された樹脂タブレットを加熱溶融させ、最適の昇降速度で圧縮金型を押圧することができる半導体樹脂封止方法を提供することを目的とする。
【0010】
【課題を解決するための手段】
本発明に係る樹脂封止方法は、枠状金型と、この枠状金型の枠内に稼動に嵌合する圧縮金型と、前記枠状金型及び圧縮金型に対向して配置された対向金型とにより周囲を規定されるキャビティC内に、樹脂タブレットを前記圧縮金型の上面に載置し、
被成形品を前記キャビティC内で前記樹脂タブレットに向き合うように配置し、
位置検出手段により検出した前記圧縮金型の位置検出値と少なくとも3種類の速度算出をする連続関数を持つ所定の数式とに基づいて流動先端速度を算出し、前記所定の数式は前記位置検出値により使用関数を変更するものであり、前記算出結果に従って押圧手段による前記圧縮金型の昇降速度を制御することを特徴とする。
【0011】
上記の所定の数式は、少なくとも3種類の速度算出をする連続関数を持ち、前記位置検出値により使用関数を変更するものとする。前記位置検出手段(ギャップセンサ)は、上昇時に圧縮金型の変位を検出することにより、圧縮金型の位置を常に監視しており、予め計算されたデータテーブルとの比較により、流動先端速度が規定値に達する位置に変速点を設け、圧縮金型の上昇速度を変更する。その変速点は次式(1)〜(3)に従って決定する。すなわち、予め設定した初期の圧縮金型上昇速度vpから算出した流動先端速度vが予め規定した流動先端速度の許容値に達する圧縮金型の位置を変速点とする。この変速点以降はvpに予め設定した第2の圧縮金型上昇速度を代入し、同様の計算を進め前記流動先端速度の規定値に達したなら、同様に予め設定した第3の圧縮金型上昇速度を代入し、計算を進める。
【0012】
これを繰り返し、作成した圧縮金型の位置に対する速度値を格納したものが、前記データテーブルとなる。
【0013】
実際の動作は、前記ギャップセンサにより検出した位置により、前記データテーブルを参照しながら圧縮金型の上昇速度を変更する。流動先端速度vは、条件によって次の(1)〜(3)式が与えられる。
【0014】
樹脂タブレットが枠状金型に接していない時の流動先端速度vは下式(1)で与えられる。
【0015】
【数1】

Figure 0003795790
【0016】
樹脂タブレットが枠状金型の2辺のみに接している時の流動先端速度vは下式(2)で与えられる。
【0017】
【数2】
Figure 0003795790
【0018】
樹脂タブレットが枠状金型の4辺に接している時の流動先端速度vは下式(3)で与えられる。
【0019】
【数3】
Figure 0003795790
【0020】
上式(1)〜(3)においては、時間tを変数としているが、圧縮金型上昇速度vpと位置hとを用いてt=h/vpの関係から容易に換算することができる。従って、流動先端速度vに達する圧縮金型位置を求めることができる。なお、樹脂は溶融圧縮の段階で10%程度の密度変位がある。これは、誤差として無視できるが、溶融、圧縮後の密度を使用し、タブレット体積を換算してもよい。
【0021】
上記のように溶融樹脂の流動先端が単純に同心円に広がる状態と、長辺に接触した後の広がる状態と、短辺に達した後に角部を充たして行く状態の3つの状態に対し、それぞれ上式(1)〜(3)の速度方程式を持ち、圧縮金型の位置により使用する方程式を変更して、より微細に流動速度を制御することができる。すなわち、溶融樹脂の流動先端位置の流速が一定の値を超えないように圧縮金型の昇降速度を制御することができるので、キャビティC内の四隅近傍に位置する回路が損傷すること無く、円形の断面形状をもつ樹脂タブレットの溶融物を矩形の断面形状をもつキャビティC内の隅々に至るまで行き渡らせることができる。
【0022】
なお、本発明の成形対象物となる被成形品は、半導体素子を搭載し電気的接続を施した配線基板またはリードフレームである。
【0023】
【発明の実施の形態】
以下、添付の図面を参照して本発明の好ましい実施の形態について説明する。
【0024】
図1乃至図3に示すように、樹脂封止装置1の金型は、本体フレーム17に固定された上型3と、昇降機構51(9〜12),52(7)に可動支持された下型2とで構成されている。
【0025】
この下型2は、図3に示すように圧縮金型21および枠状金型22を備えている。圧縮金型21は枠状金型22の枠内に可動に嵌合している。前者は昇降機構51(9〜12)により昇降駆動され、後者は昇降機構52(7)により昇降駆動されるようになっている。これらの両昇降機構51,52は制御器50により駆動制御されるようになっている。圧縮金型21、枠状金型22および配線板42により周囲を規定されるスペースがキャビティCとなる。このキャビティC内に樹脂タブレット44が配置され、所定の加熱加圧条件下で樹脂封止成形が行われるようになっている。
【0026】
上型3はヒータ4aにより加熱され、下型の枠状金型22及び圧縮金型21はヒータ4bにより加熱されるようになっている。
【0027】
上型3は被成形品41を保持するためのレール5を備えている。枠状金型22とベース6aとの間にはバネ7が介在している。圧縮金型21はベース6a,6bと断熱材8を介して可動プラテン9に取り付られている。
【0028】
可動プラテン9はボールネジ10とベルト11を介してモータ12により上下に移動されるようになっている。
【0029】
図6に示すように、枠状金型22の上端面の四隅には金型の外部に連通するエアベント23がそれぞれ形成され、成形時にキャビティC内のエアが迅速に排出されるようになっている。樹脂タブレット44は、キャビティC内において枠状金型の周壁22aから離して配置される。すなわち、キャビティCのほぼ中央に置かれた樹脂タブレット44は、底面のみが圧縮金型の上面21aに接触し、側周面および上面は、周囲の金型部材と被成形品の半導体素子とには非接触である。
【0030】
制御器50は、ギャップセンサからの情報に基づいて昇降機構51の圧縮金型上昇速度vpを制御することにより、圧縮金型21の上昇速度を制御する。
【0031】
なお、枠状金型22と圧縮金型21は微細な隙間により嵌合しているので、溶融した樹脂が金型21,22間の摺動面に侵入することはほとんどない。
【0032】
次に、上記装置を用いて半導体素子を基板上に搭載した配線板を樹脂封止する場合について説明する。
【0033】
レール5内に被成形品41を配置し、樹脂タブレット44を圧縮金型21の上面に載置し、昇降機構51,52により枠状金型22と圧縮金型21とを上昇させ、上型3と枠状金型22とで配線板42の周縁部を挟み込む。
【0034】
配線板42を挟み込んだ後は、バネ7が圧縮され、配線板42の周縁部を押える。そのまま圧縮金型21の上昇を続行し、樹脂タブレット44を押し潰すことにより配線板42と枠状金型22と圧縮金型21で形成されるキャビティC内に溶融樹脂を充満させることにより樹脂成形がなされる。
【0035】
この樹脂成形中においては、ギャップセンサ14を用いて圧縮金型21の変位を検出し、予め計算されたデータテーブルとの比較により、樹脂流動先端速度vが規定値に達する位置に変速点を設け、圧縮金型上昇速度を変更する。
【0036】
変速点は上述した数式(1)〜(3)に従って以下のように決定する。
【0037】
樹脂が枠状金型の周壁22aに接していない場合は、溶融樹脂の流動先端速度vは上式(1)で与えられる。
【0038】
樹脂が枠状金型の周壁22aの2辺(長辺)のみに接している場合は、溶融樹脂の流動先端速度vは上式(2)で与えられる。
【0039】
樹脂が枠状金型の周壁22aの4辺(長辺及び短辺)に接している場合は、溶融樹脂の流動先端速度vは上式(3)で与えられる。
【0040】
上式(1)〜(3)においては、時間tを変数としているが、圧縮金型上昇速度vpと位置hを用いてt=h/vpから容易に換算できる。従って、流動先端速度vに達する圧縮金型位置を求めることができる。なお、樹脂は溶融圧縮の段階で10%程度の密度変位がある。これは、誤差としてこれは無視することができるが、溶融、圧縮後の密度を使用し、タブレット体積を換算してもよい。
【0041】
また、より緻密な流速制御を行う方法として、上式(1)〜(3)の逆関数により、圧縮金型22の位置毎に速度を制御し、流速がほぼ一定速度となるように制御することも可能である。ただし、最終速度は必ず無限大に漸近するため、流速を保つことには限界がある。しかし、封止対象となる製品は図8に示すように、半導体素子Aが搭載されている領域(例えば、L11×L12)は、外周より内側にあり、現実に流速を制御するのは、半導体素子43の存在する範囲まででよい。
【0042】
【発明の効果】
本発明によれば、半導体素子と配線板との接合強度の低下および電気的接合部の破壊を生じることなく、キャビティ中央に配置された樹脂タブレットを加熱下で押圧することができるので、不合格品が無くなり、製品の歩留まりが格段に向上する。特に厚さ0.5mm以下で、面積30mm角以上の薄型大型パッケージに対してもキャビティの四隅近傍に位置する回路に損傷を生じることなく、樹脂を行き渡らせることができる。このため、不合格品がほとんど発生しない等の効果が大である。
【図面の簡単な説明】
【図1】本発明の樹脂封止方法に用いる装置の要部を切り欠いて示す部分断面図。
【図2】本発明の樹脂封止方法に用いる装置の金型及び駆動部を示す断面図。
【図3】本発明の樹脂封止方法に用いる装置の金型にセットされた成形前の配線板と樹脂タブレットを示すブロック断面図。
【図4】成形中の配線板と樹脂を示す内部透視断面図。
【図5】一定速度で圧縮した場合の樹脂の流動先端部の速度変位を示すグラフ。
【図6】金型内に投入された溶融成形樹脂タブレットを示す斜視図。
【図7】一定速度で圧縮した場合の樹脂の流動を模式的に示した図。
【図8】成形品である基板に半導体素子を搭載した状態を示す平面図。
【符号の説明】
1…樹脂封止装置、
2…下型、
21…圧縮金型、
22…枠状金型、
3…上型(対向金型)、
4a,4b…ヒータ、
5…レール、
6…ベース、
7…枠状金型を押し上げるバネ、
8…断熱材、
9…可動プラテン、
10…ボールネジ、
11…タイミングベルト、
12…モータ、
13…樹脂タブレット、
14…ギャップセンサ、
15…固定ブロック、
16…可動ブロック、
17…本体フレーム、
23…エアベント、
41…被成形品、
44…樹脂タブレット、
50…制御器、
51,52…昇降機構、
C…キャビティ。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a resin sealing method for sealing, for example, a substrate (substrate, lead frame) on which a semiconductor element is mounted with resin.
[0002]
[Prior art]
A conventional method will be described with reference to FIGS.
[0003]
The conventional resin sealing method is composed of a fixed upper mold, a frame mold movable up and down, and a lower mold composed of a compression mold that is movably fitted in the frame of the frame mold. A semiconductor element is mounted between an upper mold and a frame mold, and a wiring board that is electrically connected is sandwiched between the upper mold and the frame mold.
[0004]
The upper mold, the frame mold, and the compression mold are heated by a heater, and the frame mold and the compression mold can be moved up and down by an elevating mechanism.
[0005]
A thermosetting resin (hereinafter referred to as a resin tablet) molded into a tablet is placed on the upper surface of a compression mold, heated and melted, and then crushed in the direction of the wiring board with the compression mold to form a wiring board and a frame-shaped mold. Resin molding is performed by filling the resin into the cavity C formed by the compression mold.
[0006]
FIG. 7 shows the movement of the planar flow front end when the resin tablet is compressed.
[0007]
FIG. 5 shows changes in the flow velocity at the flow front end when the compression mold is raised at a constant speed.
[0008]
[Problems to be solved by the invention]
As is clear from FIGS. 5 and 7, it has been found that the molten resin rapidly increases the flow velocity in the vicinity of the corner of the molded product at the final stage. When the semiconductor elements are uniformly arranged as shown in FIG. 8, the semiconductor elements near the corners are subjected to a large shear stress, and the bonding strength between the elements and the wiring board is reduced. There was a problem that caused destruction.
[0009]
The present invention has been made in order to solve the above-described problems, and a resin tablet disposed in the cavity C is produced without causing a decrease in the bonding strength between the semiconductor element and the wiring board and the destruction of the electric bonding portion. An object of the present invention is to provide a semiconductor resin sealing method capable of being melted by heating and pressing a compression mold at an optimal elevation speed.
[0010]
[Means for Solving the Problems]
The resin sealing method according to the present invention is arranged to face a frame-shaped mold, a compression mold that is operatively fitted in the frame of the frame-shaped mold, and the frame-shaped mold and the compression mold. The resin tablet is placed on the upper surface of the compression mold in the cavity C defined by the opposite mold.
Arrange the molding to face the resin tablet in the cavity C,
The flow tip speed is calculated based on the position detection value of the compression mold detected by the position detection means and a predetermined mathematical expression having a continuous function for calculating at least three kinds of speeds , and the predetermined mathematical expression is the position detection value. The function to be used is changed according to the above , and the raising / lowering speed of the compression mold by the pressing means is controlled according to the calculation result.
[0011]
The predetermined formula has at least three types of continuous functions for calculating the speed, and the use function is changed according to the position detection value. The position detecting means (gap sensor) constantly monitors the position of the compression mold by detecting the displacement of the compression mold when ascending, and the flow tip speed is determined by comparison with a pre-calculated data table. A shift point is provided at a position where the specified value is reached, and the rising speed of the compression mold is changed. The shift point is determined according to the following equations (1) to (3). That is, the position of the compression mold at which the flow tip speed v calculated from the preset initial compression mold rise speed vp reaches the predetermined allowable value of the flow tip speed is defined as a shift point. Subsequent to this shift point, the second compression mold ascent speed set in advance is substituted into vp, and when the same calculation is advanced and the prescribed value of the flow front speed is reached, the third compression mold set in advance is similarly set. Substitute the ascending speed and proceed with the calculation.
[0012]
This data table is obtained by repeating this process and storing the velocity value for the position of the created compression mold.
[0013]
In actual operation, the ascent speed of the compression mold is changed with reference to the data table according to the position detected by the gap sensor. The flow front velocity v is given by the following equations (1) to (3) depending on conditions.
[0014]
The flow tip velocity v when the resin tablet is not in contact with the frame-shaped mold is given by the following equation (1).
[0015]
[Expression 1]
Figure 0003795790
[0016]
The flow tip speed v when the resin tablet is in contact with only two sides of the frame-shaped mold is given by the following equation (2).
[0017]
[Expression 2]
Figure 0003795790
[0018]
The flow tip velocity v when the resin tablet is in contact with the four sides of the frame-shaped mold is given by the following equation (3).
[0019]
[Equation 3]
Figure 0003795790
[0020]
In the above formulas (1) to (3), the time t is a variable, but can be easily converted from the relationship of t = h / vp using the compression mold ascent speed vp and the position h. Therefore, the compression mold position that reaches the flow front end velocity v can be obtained. The resin has a density displacement of about 10% at the stage of melt compression. This can be ignored as an error, but the density after melting and compression may be used to convert the tablet volume.
[0021]
As described above, for the three states of the state where the flow front of the molten resin simply spreads concentrically, the state where it spreads after contacting the long side, and the state where the corner is filled after reaching the short side, respectively It has the velocity equation of the above formulas (1) to (3), and the flow velocity can be controlled more finely by changing the equation to be used depending on the position of the compression mold. That is, since the ascending / descending speed of the compression mold can be controlled so that the flow velocity at the flow front position of the molten resin does not exceed a certain value, the circuit located in the vicinity of the four corners in the cavity C is not damaged and is circular. It is possible to spread the melt of the resin tablet having the cross-sectional shape to every corner in the cavity C having the rectangular cross-sectional shape.
[0022]
In addition, the to-be-molded product used as the molding object of this invention is the wiring board or lead frame which mounted the semiconductor element and gave the electrical connection.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.
[0024]
As shown in FIG. 1 to FIG. 3, the mold of the resin sealing device 1 is movably supported by the upper mold 3 fixed to the main body frame 17 and the lifting mechanisms 51 (9 to 12) and 52 (7). It consists of a lower mold 2.
[0025]
The lower mold 2 includes a compression mold 21 and a frame mold 22 as shown in FIG. The compression mold 21 is movably fitted in the frame of the frame-shaped mold 22. The former is driven up and down by the lifting mechanism 51 (9 to 12), and the latter is driven up and down by the lifting mechanism 52 (7). Both the lifting mechanisms 51 and 52 are driven and controlled by the controller 50. A space defined by the compression mold 21, the frame-shaped mold 22 and the wiring board 42 is a cavity C. A resin tablet 44 is disposed in the cavity C, and resin sealing molding is performed under predetermined heating and pressing conditions.
[0026]
The upper die 3 is heated by the heater 4a, and the lower die 22 and the compression die 21 are heated by the heater 4b.
[0027]
The upper mold 3 includes a rail 5 for holding a molded product 41. A spring 7 is interposed between the frame-shaped mold 22 and the base 6a. The compression mold 21 is attached to the movable platen 9 via the bases 6 a and 6 b and the heat insulating material 8.
[0028]
The movable platen 9 is moved up and down by a motor 12 via a ball screw 10 and a belt 11.
[0029]
As shown in FIG. 6, air vents 23 communicating with the outside of the mold are formed at the four corners of the upper end surface of the frame-shaped mold 22 so that the air in the cavity C is quickly discharged during molding. Yes. The resin tablet 44 is arranged in the cavity C away from the peripheral wall 22a of the frame-shaped mold. That is, the resin tablet 44 placed almost in the center of the cavity C is in contact with the upper surface 21a of the compression mold only on the bottom surface, and the side peripheral surface and the upper surface are connected to the surrounding mold member and the semiconductor element of the molded product. Is non-contact.
[0030]
The controller 50 controls the rising speed of the compression mold 21 by controlling the compression mold rising speed vp of the lifting mechanism 51 based on information from the gap sensor.
[0031]
In addition, since the frame-shaped mold 22 and the compression mold 21 are fitted by a minute gap, the molten resin hardly enters the sliding surface between the molds 21 and 22.
[0032]
Next, the case where the wiring board which mounted the semiconductor element on the board | substrate is resin-sealed using the said apparatus is demonstrated.
[0033]
The molded product 41 is disposed in the rail 5, the resin tablet 44 is placed on the upper surface of the compression mold 21, the frame-shaped mold 22 and the compression mold 21 are raised by the lifting mechanisms 51 and 52, and the upper mold 3 and the frame-shaped mold 22 sandwich the peripheral edge of the wiring board 42.
[0034]
After the wiring board 42 is sandwiched, the spring 7 is compressed and presses the peripheral edge of the wiring board 42. The compression mold 21 continues to rise, and the resin tablet 44 is crushed to fill the cavity C formed by the wiring board 42, the frame-shaped mold 22 and the compression mold 21 with the molten resin, thereby forming the resin. Is made.
[0035]
During this resin molding, the gap sensor 14 is used to detect the displacement of the compression mold 21, and a shift point is provided at a position where the resin flow front end velocity v reaches a specified value by comparison with a pre-calculated data table. , Change compression mold ascent speed.
[0036]
The shift point is determined as follows according to the above-described equations (1) to (3).
[0037]
When the resin is not in contact with the peripheral wall 22a of the frame mold, the flow front velocity v of the molten resin is given by the above equation (1).
[0038]
When the resin is in contact with only two sides (long sides) of the peripheral wall 22a of the frame-shaped mold, the flow front velocity v of the molten resin is given by the above equation (2).
[0039]
When the resin is in contact with the four sides (long side and short side) of the peripheral wall 22a of the frame-shaped mold, the flow front velocity v of the molten resin is given by the above equation (3).
[0040]
In the above formulas (1) to (3), the time t is a variable, but it can be easily converted from t = h / vp using the compression mold rising speed vp and the position h. Therefore, the compression mold position that reaches the flow front end velocity v can be obtained. The resin has a density displacement of about 10% at the stage of melt compression. This can be ignored as an error, but the density after melting and compression may be used to convert the tablet volume.
[0041]
Further, as a method of performing more precise flow rate control, the speed is controlled for each position of the compression mold 22 by the inverse function of the above formulas (1) to (3), and the flow rate is controlled to be substantially constant. It is also possible. However, there is a limit to maintaining the flow velocity because the final velocity always approaches asymptotic to infinity. However, as shown in FIG. 8, the product to be sealed is a region where the semiconductor element A is mounted (for example, L11 × L12) inside the outer periphery, and the flow rate is actually controlled by the semiconductor. It may be up to the range where the element 43 exists.
[0042]
【The invention's effect】
According to the present invention, the resin tablet placed in the center of the cavity can be pressed under heating without causing a decrease in the bonding strength between the semiconductor element and the wiring board and the destruction of the electric bonding portion. The product is lost and the yield of the product is greatly improved. In particular, even for a thin large package having a thickness of 0.5 mm or less and an area of 30 mm square or more, the resin can be distributed without causing damage to circuits located near the four corners of the cavity. For this reason, the effect that a rejected product hardly occurs is great.
[Brief description of the drawings]
FIG. 1 is a partial cross-sectional view showing an essential part of an apparatus used in a resin sealing method of the present invention.
FIG. 2 is a cross-sectional view showing a mold and a drive unit of an apparatus used in the resin sealing method of the present invention.
FIG. 3 is a block cross-sectional view showing a pre-molding wiring board and a resin tablet set in a mold of an apparatus used in the resin sealing method of the present invention.
FIG. 4 is an internal perspective sectional view showing a wiring board and resin during molding.
FIG. 5 is a graph showing the velocity displacement at the flow front end portion of the resin when compressed at a constant velocity.
FIG. 6 is a perspective view showing a melt-molded resin tablet charged into a mold.
FIG. 7 is a diagram schematically showing the flow of resin when compressed at a constant speed.
FIG. 8 is a plan view showing a state in which a semiconductor element is mounted on a substrate which is a molded product.
[Explanation of symbols]
1 ... Resin sealing device,
2 ... Lower mold,
21 ... Compression mold,
22 ... Frame-shaped mold,
3 ... Upper mold (opposite mold),
4a, 4b ... heater,
5 ... Rail,
6 ... Base,
7 ... a spring that pushes up the frame mold,
8… Insulation material,
9 ... movable platen,
10: Ball screw,
11 ... Timing belt,
12 ... motor,
13 ... resin tablet,
14: Gap sensor,
15 ... fixed block,
16 ... movable block,
17 ... body frame,
23 ... Air vent,
41 ... Molded product,
44 ... resin tablet,
50 ... Controller,
51, 52 ... Elevating mechanism,
C: Cavity.

Claims (2)

枠状金型と、この枠状金型の枠内に稼動に嵌合する圧縮金型と、前記枠状金型及び圧縮金型に対向して配置された対向金型とにより周囲を規定されるキャビティC内に、樹脂タブレットを前記圧縮金型の上面に載置し、
被成形品を前記キャビティC内で前記樹脂タブレットに向き合うように配置し、
位置検出手段により検出した前記圧縮金型の位置検出値と少なくとも3種類の速度算出をする連続関数を持つ所定の数式とに基づいて流動先端速度を算出し、前記所定の数式は前記位置検出値により使用関数を変更するものであり、前記算出結果に従って押圧手段による前記圧縮金型の昇降速度を制御することを特徴とする樹脂封止方法。
The periphery is defined by a frame-shaped mold, a compression mold that is operatively fitted in the frame of the frame-shaped mold, and an opposed mold disposed to face the frame-shaped mold and the compression mold. In the cavity C, the resin tablet is placed on the upper surface of the compression mold,
Arrange the molding to face the resin tablet in the cavity C,
The flow tip speed is calculated based on the position detection value of the compression mold detected by the position detection means and a predetermined mathematical expression having a continuous function for calculating at least three kinds of speeds , and the predetermined mathematical expression is the position detection value. The resin sealing method is characterized in that the function to be used is changed by controlling the lifting speed of the compression mold by the pressing means according to the calculation result.
前記被成形品が半導体素子を搭載し電気的接続を施した配線基板またはリードフレームであることを特徴とする請求項1に記載の樹脂封止方法。2. The resin sealing method according to claim 1, wherein the molded product is a wiring board or a lead frame on which a semiconductor element is mounted and electrically connected.
JP2001329951A 2001-10-26 2001-10-26 Resin sealing method Expired - Fee Related JP3795790B2 (en)

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* Cited by examiner, † Cited by third party
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CN104136191A (en) * 2012-03-16 2014-11-05 株式会社村田制作所 Device for producing sealing resin sheet and method for producing sealing resin sheet

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JP4577309B2 (en) * 2004-04-30 2010-11-10 住友ベークライト株式会社 Manufacturing method and manufacturing apparatus for resin-encapsulated semiconductor package
JP4955427B2 (en) * 2007-03-12 2012-06-20 住友重機械工業株式会社 Resin sealing device
JP2010107879A (en) * 2008-10-31 2010-05-13 Konica Minolta Opto Inc Method of manufacturing wafer lens, wafer lens, and device for manufacturing wafer lens
JP5490605B2 (en) * 2010-04-28 2014-05-14 住友重機械工業株式会社 Resin sealing device and resin sealing method
JP7001453B2 (en) * 2017-12-15 2022-01-19 東京エレクトロン株式会社 Gap adjustment device, gap adjustment method and resin molding device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104136191A (en) * 2012-03-16 2014-11-05 株式会社村田制作所 Device for producing sealing resin sheet and method for producing sealing resin sheet

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