JPH08255809A - Lead frame heating method and device thereof - Google Patents

Lead frame heating method and device thereof

Info

Publication number
JPH08255809A
JPH08255809A JP5545396A JP5545396A JPH08255809A JP H08255809 A JPH08255809 A JP H08255809A JP 5545396 A JP5545396 A JP 5545396A JP 5545396 A JP5545396 A JP 5545396A JP H08255809 A JPH08255809 A JP H08255809A
Authority
JP
Japan
Prior art keywords
temperature
lead frame
heater block
heater
control 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.)
Granted
Application number
JP5545396A
Other languages
Japanese (ja)
Other versions
JP3164283B2 (en
Inventor
Takeyuki Shinkawa
雄之 新川
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.)
Toshiba Mechatronics Co Ltd
Original Assignee
Toshiba Seiki 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 Toshiba Seiki Co Ltd filed Critical Toshiba Seiki Co Ltd
Priority to JP5545396A priority Critical patent/JP3164283B2/en
Publication of JPH08255809A publication Critical patent/JPH08255809A/en
Application granted granted Critical
Publication of JP3164283B2 publication Critical patent/JP3164283B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H01L2224/42Wire connectors; Manufacturing methods related thereto
    • H01L2224/47Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/481Disposition
    • H01L2224/48151Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
    • H01L2224/48221Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
    • H01L2224/48245Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
    • 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
    • H01L2224/42Wire connectors; Manufacturing methods related thereto
    • H01L2224/47Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/481Disposition
    • H01L2224/48151Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
    • H01L2224/48221Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
    • H01L2224/48245Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
    • H01L2224/48247Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic connecting the wire to a bond pad of the item

Landscapes

  • Wire Bonding (AREA)
  • Lead Frames For Integrated Circuits (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)

Abstract

PURPOSE: To accurately control the temperature of a lead frame by a method wherein the temperature of the heated surface of the lead frame in a heater block is detected in a non-contact state, and the temperature of the heater block is controlled based on the signal of the above-mentioned detection. CONSTITUTION: First, before the start of a bonding work, a preset temperature is inputted by the operator using an input part 12. Then, when a wire bonding device 1 is started, a current is applied to a heater 9 by a temperature control device 11, and a heater block 6 is heated up by the heat generating action of the heater block 9. On the other hand, a temperature sensor 10 detects the temperature on the upper surface of a supporting table 8 which constitutes the heater block, and the detected signal is sent to the temperature control device 11. At that time, on the temperature control device, the upper surface temperature of the supporting table 8, which is sensed by the temperature sensor 10, the set temperature are compared, and the current applied to the heater 9 is controlled so that the upper surface temperature is brought closer to the set temperature based on the result of the above-mentioned comparation.

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、リードフレームの
加熱方法および装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lead frame heating method and apparatus.

【0002】[0002]

【従来の技術】例えばワイヤボンディング装置において
は、良好なボンディングを行なうために、ボンディング
位置に位置決めされたリードフレームを、ボンディング
動作の前にヒータブロックによって必要な温度に加熱す
るようにしている。
2. Description of the Related Art In a wire bonding apparatus, for example, a lead block positioned at a bonding position is heated to a required temperature by a heater block before a bonding operation in order to perform good bonding.

【0003】ところで従来のヒータブロックの温度制御
は、次のようにして行なっていた。すなわち、このヒー
タブロック内に棒状ヒータ並びに熱電対を挿入し、熱電
対にて検出される温度に基づいて棒状ヒータの発熱量調
整を行なうようにしていた。
By the way, the conventional heater block temperature control is performed as follows. That is, a rod-shaped heater and a thermocouple are inserted in this heater block, and the heat generation amount of the rod-shaped heater is adjusted based on the temperature detected by the thermocouple.

【0004】[0004]

【発明が解決しようとする課題】ところが、熱電対によ
って検出される温度は、ヒータブロックの内部温度であ
って、リードフレームと接触する上面温度とは異なるた
め、ヒータブロックの上面を所定温度に設定することが
困難であった。このようなことから、ヒータブロックに
より加熱されるリードフレームの温度制御も不完全とな
り、ヒータブロックの上面温度がリードフレームを加熱
するに必要な温度と相違すると、ボンディング不良やペ
レット破壊等の様々な問題を生じていた。
However, since the temperature detected by the thermocouple is the internal temperature of the heater block and is different from the upper surface temperature in contact with the lead frame, the upper surface of the heater block is set to a predetermined temperature. It was difficult to do. For this reason, the temperature control of the lead frame heated by the heater block also becomes incomplete, and if the upper surface temperature of the heater block is different from the temperature required to heat the lead frame, various problems such as defective bonding and pellet destruction may occur. Was causing problems.

【0005】本発明は、リードフレームの温度制御を確
実に行なえる加熱方法および装置を提供することを目的
とする。
An object of the present invention is to provide a heating method and device which can surely control the temperature of the lead frame.

【0006】[0006]

【課題を解決するための手段】請求項1に記載の本発明
は、温度制御されるヒータブロックによりリードフレー
ムを加熱するリードフレームの加熱方法において、前記
ヒータブロックにおけるリードフレーム加熱面の温度を
非接触状態で検出し、この検出信号に基づいて前記ヒー
タブロックを温度制御することを特徴とする。
The present invention according to claim 1 provides a lead frame heating method for heating a lead frame by means of a temperature-controlled heater block, wherein the temperature of the lead frame heating surface of the heater block is not controlled. It is characterized in that the heater block is detected in a contact state and the temperature of the heater block is controlled based on the detection signal.

【0007】請求項2に記載の本発明は、温度制御され
るヒータブロックによりリードフレームを加熱するリー
ドフレームの加熱装置において、前記ヒータブロックに
設けたヒータと、前記ヒータブロックにおけるリードフ
レーム加熱面の温度を非接触状態で検出する温度センサ
と、この温度センサの検出信号に基づいて前記ヒータの
発熱量を制御する温度制御装置とを設けたことを特徴と
する。
According to a second aspect of the present invention, in a lead frame heating device for heating a lead frame by a temperature-controlled heater block, a heater provided in the heater block and a lead frame heating surface of the heater block are provided. A temperature sensor that detects the temperature in a non-contact state and a temperature control device that controls the heat generation amount of the heater based on a detection signal of the temperature sensor are provided.

【0008】本発明によれば、ヒータブロックにおける
リードフレーム加熱面の温度が温度センサにより非接触
状態で検出され、この検出信号に基づいてヒータブロッ
クの温度制御が行なわれる。
According to the present invention, the temperature of the heating surface of the lead frame in the heater block is detected by the temperature sensor in a non-contact state, and the temperature of the heater block is controlled based on this detection signal.

【0009】[0009]

【発明の実施の形態】本発明の実施の形態について説明
する。図1は、本発明をワイヤボンディング装置に適用
した例で、加熱装置の正面断面図である。図に示すワイ
ヤボンディング装置1には、前工程にてペレット2が載
置されたリードフレーム3を搬送案内する搬送レール4
が設けられる。そして、搬送レール4の途上にはボンデ
ィング位置が設定され、公知のボンディングヘッドが配
置される。なお図には、そのボンディングツール5のみ
を示している。また搬送レール4の下方には、このボン
ディングツール5に対向するようにして、ヒータブロッ
ク6が設けられる。このヒータブロック6は、ヒータブ
ロック本体7と、このヒータブロック本体7上に交換自
在に載置された支持テーブル8から構成され、支持テー
ブル8の上面レベルは、搬送レール4の搬送面レベルと
略同一に設定される。なおヒータブロック本体7内に
は、棒状のヒータ9が挿入される。
BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described. FIG. 1 is an example in which the present invention is applied to a wire bonding device, and is a front sectional view of a heating device. The wire bonding apparatus 1 shown in the figure includes a transport rail 4 for transporting and guiding the lead frame 3 on which the pellets 2 are mounted in the previous step.
Is provided. A bonding position is set on the way of the transport rail 4, and a known bonding head is arranged. In the figure, only the bonding tool 5 is shown. A heater block 6 is provided below the transport rail 4 so as to face the bonding tool 5. The heater block 6 is composed of a heater block main body 7 and a support table 8 placed on the heater block main body 7 in an exchangeable manner, and the upper surface level of the support table 8 is substantially the same as the transfer surface level of the transfer rail 4. It is set to the same. A rod-shaped heater 9 is inserted in the heater block body 7.

【0010】ヒータブロック6の上方には、温度センサ
10が設けられる。この温度センサ10は、ヒータブロ
ック6を構成する支持テーブル8の上面、すなわちリー
ドフレーム加熱面の温度を、この支持テーブル8とは非
接触状態で検出するもので、例えば赤外線センサ等を用
いることができる。そしてこの温度センサ10による検
出信号は、温度制御装置11に入力される。温度制御装
置11は、リードフレーム3を加熱するに必要とされる
支持テーブル8の上面の設定温度Tを入力するための入
力部12を有し、この入力部12から入力された設定温
度Tと、温度センサ10によって検出された支持テーブ
ル8の上面温度tとに基づき、ヒータ9の電流制御を行
なうものである。
A temperature sensor 10 is provided above the heater block 6. The temperature sensor 10 detects the temperature of the upper surface of the support table 8 constituting the heater block 6, that is, the temperature of the lead frame heating surface, in a state of not contacting the support table 8. For example, an infrared sensor or the like may be used. it can. The detection signal from the temperature sensor 10 is input to the temperature control device 11. The temperature control device 11 has an input unit 12 for inputting a set temperature T of the upper surface of the support table 8 required to heat the lead frame 3, and the set temperature T input from the input unit 12 The current control of the heater 9 is performed based on the upper surface temperature t of the support table 8 detected by the temperature sensor 10.

【0011】次に作動について説明すると、まずボンデ
ィング作業の開始に先立ち、オペレータにより設定温度
Tが入力部12より入力される。この後、ワイヤボンデ
ィング装置1が起動させられると、温度制御装置11
は、ヒータ9に電流を供給する。そしてこのヒータ9の
発熱作用により、ヒータブロック6は加熱される。
Next, the operation will be described. First, the operator inputs the set temperature T from the input unit 12 before starting the bonding work. After that, when the wire bonding apparatus 1 is activated, the temperature control device 11
Supplies a current to the heater 9. The heater block 6 is heated by the heat generation effect of the heater 9.

【0012】一方、温度センサ10は、ヒータブロック
6を構成する支持テーブル8の上面温度tを検出し、そ
の検出信号が温度制御装置11に送られる。そこで温度
制御装置11においては、温度センサ10によって求め
られた支持テーブル8の上面温度tと設定温度Tを比較
し、その比較結果に基づき、上面温度tが設定温度Tに
近づくようにヒータ9に供給する電流を制御することで
その発熱量を制御する。そして支持テーブル8の上面温
度tと設定温度Tとが一致した時点で、装置本体の制御
部(不図示)にボンディング準備完了信号を出力する。
制御部は、このボンディング準備完了信号が得られた
後、ボンディング装置全体の作動を開始させる。そこで
リードフレーム3は、不図示の搬送手段により搬送レー
ル4に案内されながらピッチ移動させられ、そしてボン
ディング位置に到達すると、或いはボンディング位置の
数ピッチ手前の位置に位置付けられた時より、ヒータブ
ロック6により加熱される。以後、加熱されたリードフ
レーム3に対し、ボンディングツール5によるボンディ
ング作業が施される。
On the other hand, the temperature sensor 10 detects the upper surface temperature t of the support table 8 forming the heater block 6, and the detection signal is sent to the temperature control device 11. Therefore, in the temperature control device 11, the upper surface temperature t of the support table 8 obtained by the temperature sensor 10 is compared with the set temperature T, and the heater 9 is controlled so that the upper surface temperature t approaches the set temperature T based on the comparison result. The amount of heat generated is controlled by controlling the supplied current. Then, when the upper surface temperature t of the support table 8 and the set temperature T match, a bonding preparation completion signal is output to the control unit (not shown) of the apparatus body.
After the bonding preparation completion signal is obtained, the control unit starts the operation of the entire bonding apparatus. Therefore, the lead frame 3 is pitch-moved while being guided by the transport rail 4 by a transport means (not shown), and when the lead frame 3 reaches the bonding position or is positioned a few pitches before the bonding position, the heater block 6 is provided. Is heated by. After that, the bonding work by the bonding tool 5 is performed on the heated lead frame 3.

【0013】なお、このボンディング作業中において
も、温度センサ10からの検出信号が随時温度制御装置
11に入力され、この入力信号に基づいてヒータ9の発
熱量の制御が行われる。
Even during this bonding operation, the detection signal from the temperature sensor 10 is input to the temperature control device 11 as needed, and the heat generation amount of the heater 9 is controlled based on this input signal.

【0014】上記した実施の形態によれば、非接触型の
温度センサ10によってヒータブロック6を構成する支
持テーブル8の上面温度tを直接検出し、この検出信号
に基づいてヒータ9に対する電流制御を行なうようにし
ているため、ヒータブロック6の上面温度を正確に設定
温度Tに設定することができる。従って、リードフレー
ム3は必要とされる温度に確実に加熱され、ボンディン
グ不良、ペレット破損等の不具合の発生を防ぐことがで
きる。
According to the above-described embodiment, the non-contact temperature sensor 10 directly detects the upper surface temperature t of the support table 8 constituting the heater block 6, and the current control for the heater 9 is performed based on this detection signal. Since this is performed, the upper surface temperature of the heater block 6 can be accurately set to the set temperature T. Therefore, the lead frame 3 is surely heated to the required temperature, and it is possible to prevent the occurrence of defects such as defective bonding and pellet breakage.

【0015】なお上記実施の形態においては、本発明を
ワイヤボンディング装置に適用した例で説明したが、こ
れに限られず、例えばペレットボンディング装置におい
ても適用することができる。
In the above embodiments, the present invention is applied to a wire bonding apparatus, but the present invention is not limited to this and can be applied to a pellet bonding apparatus, for example.

【0016】[0016]

【発明の効果】本発明によれば、リードフレームの温度
制御を確実に行なえる。
According to the present invention, the temperature control of the lead frame can be surely performed.

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

【図1】本発明の実施の形態である加熱装置の正面断面
図である。
FIG. 1 is a front sectional view of a heating device according to an embodiment of the present invention.

【符号の説明】[Explanation of symbols]

1 ワイヤボンディング装置 2 ペレット 3 リードフレーム 4 搬送レール 5 ボンディングツール 6 ヒータブロック 7 ヒータブロック本体 8 支持テーブル 9 ヒータ 10 温度センサ 11 温度制御装置 12 入力部 1 Wire Bonding Device 2 Pellet 3 Lead Frame 4 Conveyor Rail 5 Bonding Tool 6 Heater Block 7 Heater Block Main Body 8 Support Table 9 Heater 10 Temperature Sensor 11 Temperature Control Device 12 Input Unit

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 温度制御されるヒータブロックによりリ
ードフレームを加熱するリードフレームの加熱方法にお
いて、前記ヒータブロックにおけるリードフレーム加熱
面の温度を非接触状態で検出し、この検出信号に基づい
て前記ヒータブロックを温度制御することを特徴とする
リードフレームの加熱装置。
1. A lead frame heating method for heating a lead frame by a temperature-controlled heater block, wherein the temperature of a lead frame heating surface of the heater block is detected in a non-contact state, and the heater is detected based on the detection signal. A heating device for a lead frame, wherein the temperature of the block is controlled.
【請求項2】 温度制御されるヒータブロックによりリ
ードフレームを加熱するリードフレームの加熱装置にお
いて、前記ヒータブロックに設けたヒータと、前記ヒー
タブロックにおけるリードフレーム加熱面の温度を非接
触状態で検出する温度センサと、この温度センサの検出
信号に基づいて前記ヒータの発熱量を制御する温度制御
装置とを設けたことを特徴とするリードフレームの加熱
装置。
2. A lead frame heating device for heating a lead frame by a temperature-controlled heater block, wherein the temperature of a heater provided in the heater block and a lead frame heating surface of the heater block is detected in a non-contact state. A heating device for a lead frame, comprising: a temperature sensor; and a temperature control device that controls a heat generation amount of the heater based on a detection signal of the temperature sensor.
JP5545396A 1992-02-29 1996-02-19 Lead frame heating method and apparatus Expired - Fee Related JP3164283B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5545396A JP3164283B2 (en) 1992-02-29 1996-02-19 Lead frame heating method and apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5545396A JP3164283B2 (en) 1992-02-29 1996-02-19 Lead frame heating method and apparatus

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP10199198A Division JP3178518B2 (en) 1998-03-30 1998-03-30 Lead frame heating device

Publications (2)

Publication Number Publication Date
JPH08255809A true JPH08255809A (en) 1996-10-01
JP3164283B2 JP3164283B2 (en) 2001-05-08

Family

ID=12999034

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5545396A Expired - Fee Related JP3164283B2 (en) 1992-02-29 1996-02-19 Lead frame heating method and apparatus

Country Status (1)

Country Link
JP (1) JP3164283B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6107606A (en) * 1998-01-05 2000-08-22 Texas Instruments Incorporated Method and apparatus for measuring temperatures during electronic package assembly

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5768041A (en) * 1980-10-15 1982-04-26 Fujitsu Ltd Die bonding method
JPS61101041A (en) * 1984-10-24 1986-05-19 Hitachi Ltd Semiconductor manufacturing device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5768041A (en) * 1980-10-15 1982-04-26 Fujitsu Ltd Die bonding method
JPS61101041A (en) * 1984-10-24 1986-05-19 Hitachi Ltd Semiconductor manufacturing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6107606A (en) * 1998-01-05 2000-08-22 Texas Instruments Incorporated Method and apparatus for measuring temperatures during electronic package assembly

Also Published As

Publication number Publication date
JP3164283B2 (en) 2001-05-08

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