JPS6154635A - Metal mold for semiconductor resin sealing - Google Patents

Metal mold for semiconductor resin sealing

Info

Publication number
JPS6154635A
JPS6154635A JP17694584A JP17694584A JPS6154635A JP S6154635 A JPS6154635 A JP S6154635A JP 17694584 A JP17694584 A JP 17694584A JP 17694584 A JP17694584 A JP 17694584A JP S6154635 A JPS6154635 A JP S6154635A
Authority
JP
Japan
Prior art keywords
mold
resin
cavity
metal mold
epoxy resin
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
JP17694584A
Other languages
Japanese (ja)
Inventor
Yoshishige Hayashi
林 良茂
Shigenari Takami
茂成 高見
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 Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP17694584A priority Critical patent/JPS6154635A/en
Publication of JPS6154635A publication Critical patent/JPS6154635A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/72Heating or cooling
    • B29C45/73Heating or cooling of the mould

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)

Abstract

PURPOSE:To shorten a resin sealing time by a method wherein heaters in exclusive use are arrayed in the vicinities of the cavities of a metal mold. CONSTITUTION:Cavities 8 are formed by burying small metal molds 11 in the mutually opposing parts of the surfaces of a bottom force 1 and a top force 2. A flat plate-shaped heater 9 is pasted on the back surface of each cavity 8. According to this constitution, an epoxy resin tablet 15 is fused by a heating of the heaters 9 and a pressing of a plunger 3 and after the cavities 8 are filled with the epoxy resin, the resin is rapidly cured by a strong heating of the heaters 9. Accordingly, the hardening time of resin can be remarkably shortened than in case a resin is heated and molded using merely a metal mold only.

Description

【発明の詳細な説明】 (技術分野) この発明は半導体の樹脂封止を行うのに使用する半導体
樹脂封止用金型に関する。
DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a semiconductor resin encapsulation mold used for resin encapsulation of a semiconductor.

(背景技術) リードフレームに登載し、ワイヤボンディングを施した
半導体は、一般にエポキシ樹脂にて樹脂封止される。こ
れは半導体を外部の環境汚染から保護するためである。
(Background Art) A semiconductor mounted on a lead frame and subjected to wire bonding is generally sealed with epoxy resin. This is to protect the semiconductor from external environmental pollution.

エポキシ樹脂を使用するのは流動性が優れ、封止時にお
ける半導体への加圧力は少なくてすみ、封止不良率も少
ないからである。一方短所としてはエポキシ樹脂は硬化
までに長時間を必要とし金型の稼働率を低下させ、生産
性を著しく低下させている。この生産性の低さを改善す
るために現在は金型を多数個数のものとし、バッチ処理
している。しかしながらバッチ処理も連続生産には及ば
ず、一方、樹脂封止の工程の前後の工程は逐次自動化が
すすみライン化が進んでいるが、エポキシ樹脂は硬化時
間が長くこの工程でバッチ処理となる為に生産性向上に
大きなネックとなっている。
Epoxy resin is used because it has excellent fluidity, requires less pressure on the semiconductor during sealing, and has a lower sealing failure rate. On the other hand, epoxy resins have the disadvantage that they require a long time to cure, which reduces the operating rate of molds and significantly reduces productivity. In order to improve this low productivity, currently a large number of molds are used and batch processing is performed. However, batch processing does not reach the same level as continuous production.On the other hand, the processes before and after the resin sealing process are being gradually automated and line-based production is progressing, but epoxy resin has a long curing time and is batch processed in this process. This has become a major bottleneck in improving productivity.

(発明の目的) この発明は半導体の樹脂封止を短時間に行うことができ
る半導体樹脂封止用金型を提供せんとするものである。
(Object of the Invention) The present invention aims to provide a semiconductor resin encapsulation mold that can perform resin encapsulation of a semiconductor in a short time.

(発明の開示) この発明の要旨とするところは、金型のキャビティの近
傍にキャビティの加熱専用のヒーターを配置して成る半
導体樹脂封止用金型である。
(Disclosure of the Invention) The gist of the present invention is a mold for encapsulating a semiconductor resin in which a heater dedicated to heating the cavity is arranged near the cavity of the mold.

以下、この発明を第1図乃至第3図に図示せる一実施例
にもとすいて説明する。
The present invention will be explained below based on an embodiment shown in FIGS. 1 to 3.

1は下型、2は上型、3はプランジャー、4は受は板、
5は下型に挿通されたノックアウトピン、6は樹脂の投
入孔で前記プランジャー3が挿通されている。8は金型
1.2の表面に設けられたキャビティで、この実施例で
は金型1及び金型2の表面に対向するように設けたキャ
ビティ8が対になって一つの成型部を形成している、9
はキャビティ8のゲートである。キャビティ8は下型1
及び上型2の表面にキャビティ形成用の小さいキャビテ
ィ金型11を埋めこんで形成されているキャビティ8の
内表面に近接して平板状のヒーター9が配置されている
。具体的にはキャビティ金型11の裏面に平板状のヒー
ター9が張り付けて配置されている。
1 is the lower mold, 2 is the upper mold, 3 is the plunger, 4 is the receiver plate,
5 is a knockout pin inserted into the lower mold, and 6 is a resin injection hole into which the plunger 3 is inserted. Reference numeral 8 denotes a cavity provided on the surface of the mold 1.2, and in this embodiment, the cavities 8 provided so as to face the surfaces of the molds 1 and 2 form a pair to form one molded part. 9
is the gate of cavity 8. Cavity 8 is the lower mold 1
A flat heater 9 is disposed close to the inner surface of a cavity 8 which is formed by embedding a small cavity mold 11 in the surface of the upper mold 2. Specifically, a flat heater 9 is attached to the back surface of the cavity mold 11 and arranged.

下型1に挿通されたノックアウトピン5はキャビティ8
内に成型される半導体樹脂封止成型品17をノックアウ
トするものである。
The knockout pin 5 inserted into the lower mold 1 is inserted into the cavity 8
This is to knock out the semiconductor resin encapsulation molded product 17 molded inside.

ノックアウトピン5は鋼、ステンレス鋼、工具鋼等が使
用される。
The knockout pin 5 is made of steel, stainless steel, tool steel, or the like.

4はノックアウトピン5の受板である。4 is a receiving plate for the knockout pin 5.

金型1.2の加熱はキャビティ金型のヒーター9とは別
のヒーター(図示せず)で加熱されるキャビティ金型1
1のヒーター9はキャビティ金型11を金型1.2より
高い温度に加熱するものである。
The mold 1.2 is heated by a heater (not shown) that is different from the heater 9 of the cavity mold.
The heater 9 of No. 1 heats the cavity mold 11 to a temperature higher than that of the mold 1.2.

金型1.2の加熱は溶融したエポキシ樹脂がランナー1
3およびゲート10を流動するのに支障のない範囲の温
度におこなう。
When heating the mold 1.2, the molten epoxy resin is heated to the runner 1.
3 and gate 10 at a temperature within a range that does not impede flow.

キャビティ金型11の加熱は熔融したエポキシ樹脂が最
短の硬化時間で硬化する温度におこなう。この目的を効
果的に達成するためにキャビティ金型11の材質は金型
1.2より熱伝導率の高い材質で形成することがのぞま
しい。
The cavity mold 11 is heated to a temperature at which the molten epoxy resin hardens in the shortest hardening time. In order to effectively achieve this purpose, it is preferable that the cavity mold 11 is made of a material with higher thermal conductivity than the mold 1.2.

これによりキャビティ8内に入ったエポキシ樹脂はキャ
ビティ金型11の裏面に張り付けて配置されている平板
状のヒーター9により強力に加熱されるのである。
As a result, the epoxy resin that has entered the cavity 8 is strongly heated by the flat heater 9 attached to the back surface of the cavity mold 11.

次に成型手順を説明する。Next, the molding procedure will be explained.

第2図に示す如くリードフレーム12に登載し、ワイヤ
ボンディングを施した半導体14はキャビティ8に入れ
られ、上型2を閉じたのちに投入孔6からエポキシ樹脂
のタブレット15を挿入し熔融せしめて、加熱加圧して
前記半導体14を樹脂封止するのである。予め予熱され
ている金型1.2のなかにタブレット15をプランジャ
ー3で押し込み熔融せしめるのである。
As shown in FIG. 2, the semiconductor 14 mounted on the lead frame 12 and subjected to wire bonding is placed in the cavity 8, and after the upper mold 2 is closed, an epoxy resin tablet 15 is inserted through the injection hole 6 and melted. Then, the semiconductor 14 is sealed with resin by applying heat and pressure. The tablet 15 is pushed into the preheated mold 1.2 with the plunger 3 and melted.

この発明においては、プランジャー3のタブレット15
への加圧および金型1.2の加熱によリエポキシ樹脂が
熔融してキャビティ8に充填した後は、該エポキシ樹脂
はキャビティ金型11の裏面に張り付けて配置されてい
る平板状のヒーター9により強力に加熱され速やかに硬
化するのである。
In this invention, the tablet 15 of the plunger 3
After the epoxy resin is melted and filled into the cavity 8 by applying pressure to the mold 1.2 and heating the mold 1.2, the epoxy resin is heated to a flat heater 9 attached to the back surface of the cavity mold 11. It is heated more strongly and hardens quickly.

これによって単に金型のみの加熱成型によるのとは異な
りエポキシ樹脂の硬化時間をはるかに短縮することがで
きるのである。なお、金型の予熱にもこのキャビティ金
型11の加熱用のヒーター9を使用しておこなってよい
ことはもちろんである。
This makes it possible to significantly shorten the curing time of the epoxy resin, unlike simply heating molding with a mold. It goes without saying that the heater 9 for heating the cavity mold 11 may also be used to preheat the mold.

キャビティ8の加熱はキャビティ専用の加熱用ヒーター
により行うので、キャビティ8のみが強力に加熱される
のみであり、従って加熱のしすぎによってゲート9が詰
るというような事態は回避されるのである。
Since the cavity 8 is heated by a heater dedicated to the cavity, only the cavity 8 is heated strongly, and a situation in which the gate 9 is clogged due to excessive heating is avoided.

以上の如くして第3図のごとき半導体樹脂封止成型品1
7がえられるのである。この半導体樹脂封止成型品17
はあとから個々の半導体14の単位に切断して製品とさ
れる。
As described above, the semiconductor resin encapsulated molded product 1 as shown in FIG.
7 can be obtained. This semiconductor resin encapsulation molded product 17
is later cut into individual semiconductors 14 to produce products.

(発明の効果) 以上のようにこの発明の半導体樹脂封止用金型を使用す
れば、単に金型のみの加熱成型によるのとは異なり、キ
ャビティの近傍に配置したキャビティ専用の加熱用ヒー
ターによりキャビティ内部のエポキシ樹脂を強力に加熱
するので、これによってエポキシ樹脂の硬化時間をはる
かに短縮することができるのである。従ってこの発明に
よる半導体樹脂封止用金型を使用すれば、連続成型によ
る半導体の樹脂封止も可能であり、自動化工程に組み込
むことも容易に出来るのである。
(Effects of the Invention) As described above, if the mold for semiconductor resin encapsulation of the present invention is used, unlike the case where only the mold is heated and molded, a heater for heating the cavity placed near the cavity can be used. Since the epoxy resin inside the cavity is heated strongly, the curing time of the epoxy resin can be significantly shortened. Therefore, if the mold for semiconductor resin encapsulation according to the present invention is used, semiconductors can be encapsulated with resin by continuous molding, and it can be easily incorporated into automated processes.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図乃至第3図はこの発明の一実施例を示ψすもので
、第1図は断面図、第2図は側面図、第3図は側面図で
ある。 1は下型、2は上型、3はプランジャー、4は受は板、
5はノックアウトビン、6は樹脂の投入孔、8はキャビ
ティ、9はヒーター、10はゲート、11はキャビティ
金型である。
1 to 3 show an embodiment of the present invention, in which FIG. 1 is a sectional view, FIG. 2 is a side view, and FIG. 3 is a side view. 1 is the lower mold, 2 is the upper mold, 3 is the plunger, 4 is the receiver plate,
5 is a knockout bottle, 6 is a resin injection hole, 8 is a cavity, 9 is a heater, 10 is a gate, and 11 is a cavity mold.

Claims (1)

【特許請求の範囲】[Claims] (1)金型のキャビティの近傍にキャビティの加熱専用
のヒーターを配置して成る半導体樹脂封止用金型。
(1) A mold for sealing a semiconductor resin with a heater dedicated to heating the cavity arranged near the cavity of the mold.
JP17694584A 1984-08-24 1984-08-24 Metal mold for semiconductor resin sealing Pending JPS6154635A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17694584A JPS6154635A (en) 1984-08-24 1984-08-24 Metal mold for semiconductor resin sealing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17694584A JPS6154635A (en) 1984-08-24 1984-08-24 Metal mold for semiconductor resin sealing

Publications (1)

Publication Number Publication Date
JPS6154635A true JPS6154635A (en) 1986-03-18

Family

ID=16022481

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17694584A Pending JPS6154635A (en) 1984-08-24 1984-08-24 Metal mold for semiconductor resin sealing

Country Status (1)

Country Link
JP (1) JPS6154635A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009105273A (en) * 2007-10-24 2009-05-14 Sumitomo Heavy Ind Ltd Resin sealing mold

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009105273A (en) * 2007-10-24 2009-05-14 Sumitomo Heavy Ind Ltd Resin sealing mold

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