JP3640679B2 - IC inspection robot and IC inspection method - Google Patents

IC inspection robot and IC inspection method Download PDF

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Publication number
JP3640679B2
JP3640679B2 JP32206192A JP32206192A JP3640679B2 JP 3640679 B2 JP3640679 B2 JP 3640679B2 JP 32206192 A JP32206192 A JP 32206192A JP 32206192 A JP32206192 A JP 32206192A JP 3640679 B2 JP3640679 B2 JP 3640679B2
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Prior art keywords
inspection
unit
transport
transport mechanism
pressing
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JPH06174792A (en
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広明 藤森
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Seiko Epson Corp
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Seiko Epson Corp
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  • Manipulator (AREA)
  • Testing Or Measuring Of Semiconductors Or The Like (AREA)
  • Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
  • Testing Of Individual Semiconductor Devices (AREA)

Description

【0001】
【産業上の利用分野】
本発明は、ICデバイスの特性検査時に、検査部にICデバイスを搬送し、ICデバイスピンコンタクトに必要な押し付け力を加えるIC検査用ロボットに関する。
【0002】
【従来の技術】
従来のIC検査用ロボットは図2のような構造であった。即ち、図2において、ICデバイス搬送用のロボットあるいは搬送装置により検査部分11に供給されたICデバイスは、検査時に必要なICデバイスピンコンタクトを確実にするため、搬送装置とは別に用意されたエアーシリンダー9等により駆動される押し付け部12により加圧される専用押し付け装置により、加圧力を得ていた。
【0003】
【発明が解決しようとする課題】
しかし、従来のIC検査用搬送装置は、ICデバイス搬送後に搬送装置が測定部から退避した状態で押し付け装置が検査部に移動し、押し付け力を加える方式が一般的であったため、測定に入るまでの動作に時間がかかる。さらに測定終了時にも、押し付け部が検査部から抜けきった後に、搬送装置が検査部からICデバイスを取り出すため、検査に要する時間以外の、ICデバイス入れ替え時間が長いという問題点を有している。
【0004】
さらに、搬送装置と、押し付け装置相互の動作が干渉する部分があるため、互いの動作タイミングにより装置同士が衝突する危険性があるという問題点も有している。
【0005】
そこで本発明は従来のこのような課題を解決するために、移動軸上に押し付け力を発生させる機構をそなえることにより、ICデバイス入れ替え時間を短縮する事のできるIC検査用ロボットを供給することを目的とする。
【0006】
【課題を解決するための手段】
上記課題を解決するため本発明のIC検査用ロボットは、ICデバイス(10)を検査するIC検査用ロボットにおいて、前記ICデバイス(10)を保持するハンド(6)を備え、前記ICデバイス(10)を第一の方向に搬送して検査部に配置する第一搬送機構(3,4,5)が搭載された第一搬送部と、前記第一搬送部を第二の方向に搬送する第二搬送機構(1,2)と、前記ICデバイス(10)を検査部(11)に押し付けるための押し付け力を発生させる駆動機構(7,8,9)とを有し、前記駆動機構(7,8,9)は、前記第一搬送部に搭載され、前記第一搬送機構(3,4,5)と前記第二搬送機構(1,2)とは別の駆動部(9)を備え、該別の駆動部(9)は、前記ハンド(6)が、前記第一の方向に移動する移動軸上に配置されてなることを特徴とする。
また、上記課題を解決するため本発明のIC検査方法は、ICデバイス(10)を検査するIC検査方法において、ICデバイス(10)を検査するIC検査用ロボットであって、前記ICデバイス(10)を保持するハンド(6)を備え、前記ICデバイス(10)を第一の方向に搬送して検査部に配置する第一搬送機構(3,4,5)が搭載された第一搬送部と、前記第一搬送部を第二の方向に搬送する第二搬送機構(1,2)と、前記ICデバイス(10)を検査部(11)に押し付けるための押し付け力を発生させる駆動機構(7,8,9)とを有し、前記駆動機構(7,8,9)は、前記第一搬送部に搭載され、前記第一搬送機構(3,4,5)と前記第二搬送機構(1,2)とは別の駆動部(9)を備え、該別の駆動部(9)は、前記ハンド(6)が、前記第一の方向に移動する移動軸上に配置されてなるIC検査用ロボットを用いて、前記ICデバイス(10)を、前記第一搬送機構(3,4,5)により前記第一の方向に移動するとともに、前記第二搬送機構(1,2)により前記第二の方向に搬送し、しかる後に、前記駆動部(9)により前記ICデバイス(10)を前記検査部(11)に押し付けることを特徴とする。
【0007】
【作用】
上記のように構成されたIC検査用ロボットは、ICデバイス搬送機構部に駆動機構以外に、その駆動軸上に同一方向に作用する別の力を発生させることのできる動力を持つことにより押し付け力を発生することが可能であり、このためICデバイス搬送後、搬送部分が退避することなく、搬送直後に押し付け力を加えることができるため入れ替え時間を従来の装置に比べて約半分にまで短縮でき、生産に寄与しない、入れ替え時間の短縮を計るものである。
【0008】
さらに、従来の構成で考えられた装置同士の干渉による衝突の危険性が、同一装置上に駆動部を持つために避けられる。
【0009】
【実施例】
以下に本発明の実施例を図面にもとづいて説明する。図1においてサーボモータ1で駆動されるボールねじ2により移動する直動軸(以下X軸)の移動板上に上下方向に動作するZ軸が取り付けられている。このZ軸移動機構もX軸と同様にサーボモータ3でボールねじ4を駆動することにより移動する。Z軸上を移動する支持摺動用のスプラインシャフト5の先端部にさらに、支持バネ8により上方に押しつけられた状態で別のスプラインシャフト7が下方に移動可能な状態で取り付けられている。このスプラインシャフト7の先端にICデバイス10を吸着等により搬送するハンド6が取り付けられている。搬送機構部がこのように構成される。このハンド6は検査時の押し付け部を兼ねる。さらに、スプラインシャフト7と同軸上方に、ICデバイスピンコンタクトの際に必要となる押し付け力を得るための駆動動力としてエアーシリンダー9が取り付けられている。
【0010】
以上のような実施例において、ICデバイスは検査用ロボットの搬送機構部により検査部11に搬送されるのと同時に押し付け用シリンダーが動作し押し付け力を加えることにより検査に入ることができる。検査終了時の動作も、この逆の動作を行うことにより、ICデバイス入れ替え時間を飛躍的に短縮できる。
【0011】
尚、以上の実施例は、移動機構にサーボモータとボールねじ、押し付け力の発生機構にエアーシリンダーを例として説明してきたが、上述した駆動機構および押し付け機構が他の方法により駆動されても同様の効果が得られることは言うまでもない。
【0012】
【発明の効果】
かかる本発明によれば、上述の構成をとることで、ICデバイスを検査部に搬送する第一搬送機構の駆動部と、ICデバイスを検査部に押し付けるための押し付け力を発生させる駆動機構の駆動部とを分離でき、第一搬送機構の移動重量を抑えることができるので、ICデバイスが検査部に衝撃的に圧接することなく、安定したコンタクトを実現することができる。また、上述の構成としたことで、第一搬送機構により、ICデバイスを検査部に搬送し、しかる後に、第一搬送部に搭載され、ハンドの移動軸上に配置された駆動機構により、ICデバイスを検査部に押し付けるための押し付け力を発生させることができるため、第一搬送部を退避させることなく、かつ、ハンドの移動軸上からの確実な押し付け力により搬送直後に検査に入ることができる。その結果、ICデバイス入れ替え時間を飛躍的に短縮できる。
【図面の簡単な説明】
【図1】本発明の一実施例のIC検査用ロボットの概略図である。
【図2】従来のIC検査装置の一例を示す概略図である。
【符号の説明】
1 X軸用サーボモータ
2 X軸用ボールねじ
3 Z軸用サーボモータ
4 Z軸用ボールねじー
5 Z軸支持スプラインシャフト
6 ICデバイス検査ハンド
7 検査ハンド支持用スプラインシャフト
8 支持バネ
9 押し付け用エアーシリンダー
10 ICデバイス
11 検査部
12 IC押し付け部
[0001]
[Industrial application fields]
The present invention relates to an IC inspection robot that transports an IC device to an inspection unit and applies a pressing force required for an IC device pin contact during characteristic inspection of the IC device.
[0002]
[Prior art]
A conventional IC inspection robot has a structure as shown in FIG. That is, in FIG. 2, the IC device supplied to the inspection part 11 by the IC device transfer robot or transfer device is an air prepared separately from the transfer device in order to ensure the IC device pin contact required at the time of inspection. The pressing force was obtained by a dedicated pressing device pressurized by the pressing unit 12 driven by the cylinder 9 or the like.
[0003]
[Problems to be solved by the invention]
However, in the conventional IC inspection transport apparatus, since the pressing device moves to the inspection section and the pressing apparatus moves to the inspection section in a state where the transport apparatus is retracted from the measurement section after the IC device is transported, until the measurement starts. Takes time to operate. In addition, even when the measurement is completed, after the pressing unit has been completely removed from the inspection unit, the transport device takes out the IC device from the inspection unit, so that there is a problem that the IC device replacement time is long other than the time required for the inspection. .
[0004]
Further, since there is a portion where the operations of the transport device and the pressing device interfere with each other, there is a problem that there is a risk that the devices collide with each other depending on the operation timing.
[0005]
Accordingly, in order to solve such a conventional problem, the present invention provides an IC inspection robot capable of shortening the IC device replacement time by providing a mechanism for generating a pressing force on the moving axis. Objective.
[0006]
[Means for Solving the Problems]
IC inspection robot of the present invention for solving the above problems is the IC inspection robot for inspecting the IC device (10) comprises a hand (6) for holding the IC device (10), the IC device (10 ) In the first direction and mounted in the inspection unit, the first transport unit on which the first transport mechanism (3, 4, 5) is mounted, and the first transport unit transports the first transport unit in the second direction . second transporting mechanism and (1,2), wherein a checking unit IC devices (10) and a drive mechanism for generating a pressing force for pressing the (11) (7,8,9), said drive mechanism (7 , 8, 9) are mounted on the first transport unit, and the first transport mechanism (3, 4, 5) and the drive unit (9) different from the second transport mechanism (1, 2 ) are provided. provided, the driving unit of said another (9), the hand (6) is moved in the first direction movement Characterized by comprising been arranged.
Moreover, IC testing method of the present invention for solving the above problems is the IC inspection method for inspecting an IC device (10), an IC inspection robot for inspecting the IC device (10), the IC device (10 ) Holding a hand (6) , and a first transport unit on which a first transport mechanism (3, 4, 5) that transports the IC device (10) in a first direction and places it in an inspection unit is mounted. A second transport mechanism (1, 2) for transporting the first transport unit in the second direction, and a drive mechanism for generating a pressing force for pressing the IC device (10) against the inspection unit (11) ( 7, 8, 9), and the drive mechanism (7, 8, 9) is mounted on the first transport unit, the first transport mechanism (3, 4, 5), and the second transport mechanism comprises a further drive unit (9) and (1,2), said another driving unit (9) , The hand (6), using the first IC inspection robot disposed on the movement axis formed by moving in the direction, the IC device (10), the first conveying mechanism (3, 4, 5) in the first direction and in the second direction by the second transport mechanism (1, 2) , and then the IC device (10) is driven by the drive unit (9). It presses against the said inspection part (11) , It is characterized by the above-mentioned.
[0007]
[Action]
The IC inspection robot configured as described above has a pressing force by having power that can generate another force acting in the same direction on the drive shaft in addition to the drive mechanism in the IC device transport mechanism. Therefore, after the IC device is transferred, the transfer part can be applied immediately after the transfer without retracting the transfer part, so the replacement time can be shortened to about half compared to the conventional device. It does not contribute to production, and it shortens the replacement time.
[0008]
Further, the risk of collision due to interference between devices considered in the conventional configuration is avoided because the drive unit is provided on the same device.
[0009]
【Example】
Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, a Z-axis that moves in the vertical direction is mounted on a moving plate of a linear motion shaft (hereinafter referred to as X-axis) that is moved by a ball screw 2 driven by a servo motor 1. This Z-axis moving mechanism also moves by driving the ball screw 4 with the servo motor 3 in the same manner as the X-axis. Further, another spline shaft 7 is attached to the tip of the supporting sliding spline shaft 5 moving on the Z-axis so as to be movable downward while being pressed upward by the supporting spring 8. A hand 6 for conveying the IC device 10 by suction or the like is attached to the tip of the spline shaft 7. The transport mechanism is configured in this way. This hand 6 also serves as a pressing portion at the time of inspection. Further, an air cylinder 9 is attached as a driving power for obtaining a pressing force necessary for the IC device pin contact above the spline shaft 7 coaxially.
[0010]
In the embodiment as described above, the IC device can be inspected by the pressing cylinder operating and applying a pressing force at the same time that the IC device is transported to the inspection unit 11 by the transport mechanism of the inspection robot. The operation at the end of the inspection can also be performed by reversing the IC device replacement time dramatically.
[0011]
In the above embodiments, a servo motor and a ball screw are used as the moving mechanism, and an air cylinder is used as the pressing force generating mechanism. However, the above-described driving mechanism and pressing mechanism may be driven by other methods. It goes without saying that the effect of can be obtained.
[0012]
【The invention's effect】
According to the present invention, by adopting the above-described configuration, the driving unit of the first transport mechanism that transports the IC device to the inspection unit and the drive of the driving mechanism that generates a pressing force for pressing the IC device against the inspection unit. Since the moving part of the first transport mechanism can be suppressed, it is possible to realize a stable contact without causing the IC device to be in pressure contact with the inspection part. In addition, with the above-described configuration, the IC device is transported to the inspection unit by the first transport mechanism, and then the IC is mounted on the first transport unit and disposed on the moving axis of the hand by the IC. Since a pressing force for pressing the device against the inspection unit can be generated, the inspection can be started immediately after the transfer without retracting the first transfer unit and with a reliable pressing force from the moving axis of the hand. it can. As a result, the IC device replacement time can be dramatically shortened.
[Brief description of the drawings]
FIG. 1 is a schematic view of an IC inspection robot according to an embodiment of the present invention.
FIG. 2 is a schematic view showing an example of a conventional IC inspection apparatus.
[Explanation of symbols]
1 X-axis servo motor 2 X-axis ball screw 3 Z-axis servo motor 4 Z-axis ball screw 5 Z-axis support spline shaft 6 IC device inspection hand 7 Inspection hand support spline shaft 8 Support spring 9 Pressing air Cylinder 10 IC device 11 Inspection part 12 IC pressing part

Claims (3)

ICデバイス(10)を検査するIC検査用ロボットにおいて、
前記ICデバイス(10)を保持するハンド(6)を備え、前記ICデバイス(10)を第一の方向に搬送して検査部に配置する第一搬送機構(3,4,5)が搭載された第一搬送部と、
前記第一搬送部を第二の方向に搬送する第二搬送機構(1,2)と、
前記ICデバイス(10)を検査部(11)に押し付けるための押し付け力を発生させる駆動機構(7,8,9)とを有し、
前記駆動機構(7,8,9)は、前記第一搬送部に搭載され、前記第一搬送機構(3,4,5)と前記第二搬送機構(1,2)とは別の駆動部(9)を備え、
該別の駆動部(9)は、前記ハンド(6)が、前記第一の方向に移動する移動軸上に配置されてなることを特徴とするIC検査用ロボット。
In an IC inspection robot for inspecting an IC device (10) ,
A hand (6 ) for holding the IC device (10) is provided, and a first transport mechanism (3, 4, 5) for transporting the IC device (10) in a first direction and placing the IC device (10) in an inspection unit is mounted. A first conveying section;
A second transport mechanism (1, 2) for transporting the first transport unit in the second direction;
A drive mechanism (7, 8, 9) for generating a pressing force for pressing the IC device (10) against the inspection unit (11) ;
The drive mechanism (7, 8, 9) is mounted on the first transport unit, and is driven differently from the first transport mechanism (3,4, 5) and the second transport mechanism (1, 2). Part (9) ,
The another drive unit (9) is an IC inspection robot characterized in that the hand (6) is arranged on a moving axis that moves in the first direction .
前記別の駆動部(9)はシリンダであることを特徴とする請求項1に記載のIC検査用ロボット。The IC inspection robot according to claim 1, wherein the another drive unit is a cylinder. ICデバイス(10)を検査するIC検査方法において、
ICデバイス(10)を検査するIC検査用ロボットであって
前記ICデバイス(10)を保持するハンド(6)を備え、前記ICデバイス(10)を第一の方向に搬送して検査部に配置する第一搬送機構(3,4,5)が搭載された第一搬送部と、
前記第一搬送部を第二の方向に搬送する第二搬送機構(1,2)と、
前記ICデバイス(10)を検査部(11)に押し付けるための押し付け力を発生させる駆動機構(7,8,9)とを有し、
前記駆動機構(7,8,9)は、前記第一搬送部に搭載され、前記第一搬送機構(3,4,5)と前記第二搬送機構(1,2)とは別の駆動部(9)を備え、
該別の駆動部(9)は、前記ハンド(6)が、前記第一の方向に移動する移動軸上に配置されてなるIC検査用ロボットを用いて、
前記ICデバイス(10)を、前記第一搬送機構(3,4,5)により前記第一の方向に移動するとともに、前記第二搬送機構(1,2)により前記第二の方向に搬送し、
しかる後に、前記駆動部(9)により前記ICデバイス(10)を前記検査部(11)に押し付けることを特徴とするIC検査方法。
In an IC inspection method for inspecting an IC device (10) ,
An IC inspection robot for inspecting the IC device (10),
A hand (6 ) for holding the IC device (10) is provided, and a first transport mechanism (3, 4, 5) for transporting the IC device (10) in a first direction and placing the IC device (10) in an inspection unit is mounted. A first conveying section;
A second transport mechanism (1, 2) for transporting the first transport unit in the second direction;
A drive mechanism (7, 8, 9) for generating a pressing force for pressing the IC device (10) against the inspection unit (11) ;
The drive mechanism (7, 8, 9) is mounted on the first transport unit, and is driven differently from the first transport mechanism (3,4, 5) and the second transport mechanism (1, 2). Part (9) ,
The other drive unit (9) uses an IC inspection robot in which the hand (6) is arranged on a moving axis that moves in the first direction .
The IC device (10) is moved in the first direction by the first transport mechanism (3, 4, 5) and transported in the second direction by the second transport mechanism (1, 2). ,
Thereafter, the IC device (10) is pressed against the inspection section (11) by the driving section (9) .
JP32206192A 1992-12-01 1992-12-01 IC inspection robot and IC inspection method Expired - Lifetime JP3640679B2 (en)

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