JPH05215824A - Acceleration service life testing device - Google Patents

Acceleration service life testing device

Info

Publication number
JPH05215824A
JPH05215824A JP4020825A JP2082592A JPH05215824A JP H05215824 A JPH05215824 A JP H05215824A JP 4020825 A JP4020825 A JP 4020825A JP 2082592 A JP2082592 A JP 2082592A JP H05215824 A JPH05215824 A JP H05215824A
Authority
JP
Japan
Prior art keywords
switch
power supply
service life
resistor
testing 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.)
Withdrawn
Application number
JP4020825A
Other languages
Japanese (ja)
Inventor
Munehiro Ito
宗広 伊藤
Rou Fujitani
郎 藤谷
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 IC Microcomputer Systems Co Ltd
Original Assignee
NEC IC Microcomputer Systems 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 NEC IC Microcomputer Systems Co Ltd filed Critical NEC IC Microcomputer Systems Co Ltd
Priority to JP4020825A priority Critical patent/JPH05215824A/en
Publication of JPH05215824A publication Critical patent/JPH05215824A/en
Withdrawn legal-status Critical Current

Links

Abstract

PURPOSE:To continue a test without exerting influence upon other normal ICs even if abnormality is caused in an IC being a test object in an acceleration service life testing device. CONSTITUTION:An acceleration service life testing device is composed of a switch 30 being switched by a resistance 20 and a temperature, and since the switch 30 is turned on usually, voltage being impressed from an electric power supply input 10 is impressed directly upon an IC, and is not through the resistance 20. When abnormality is caused in the IC and an electric current is flowed, since a heat is generated, if the switch 30 is switched by sensing the heat, the switch 30 is turned off, and the voltage being impressed from the electric power supply input 10 is impressed upon the IC through the resistance 20.

Description

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

【0001】[0001]

【産業上の利用分野】本発明は加速寿命試験装置に関す
る。
FIELD OF THE INVENTION The present invention relates to an accelerated life test apparatus.

【0002】[0002]

【従来の技術】従来の加速寿命試験装置においては、図
4の様に、電源と集積回路(IC)素子とが直結されて
いて、さらに1つの電源入力10に複数のICの電源端
子60が接続されている。
2. Description of the Related Art In a conventional accelerated life test apparatus, a power source and an integrated circuit (IC) element are directly connected to each other as shown in FIG. 4, and one power source input 10 is provided with power source terminals 60 of a plurality of ICs. It is connected.

【0003】そのため、どれか1つのICが異常となっ
て大電流を流した場合、電源のカレントリミットが作動
して、全てのICに電圧がかからなくなってしまう。ま
た、異常となったICは、こわれるまで大電流が流れて
しまう。
Therefore, when any one of the ICs becomes abnormal and a large current flows, the current limit of the power supply is activated and no voltage is applied to all the ICs. Further, a large current flows through the abnormal IC until it is broken.

【0004】これに対処するため、図5のように、電源
入力10とICの電源端子60との間にそれぞれ抵抗2
0を入れる事が行なわれているが、抵抗20により電圧
降下が生じる等の問題点がある。
In order to deal with this, as shown in FIG. 5, a resistor 2 is provided between the power source input 10 and the power source terminal 60 of the IC.
Although 0 is inserted, there is a problem that a voltage drop occurs due to the resistor 20.

【0005】加速寿命試験を行なう場合は、図6に示す
BTボード70を高温度の環境下において行なう。BT
ボード70上には、4つのICソケット40がのってお
り、ICソケット40と端子コネクタ接続部71とはB
Tボード70下部等で配線接続されている。これによ
り、ICソケット40に挿入されたICの試験を行な
う。
When performing the accelerated life test, the BT board 70 shown in FIG. 6 is performed in a high temperature environment. BT
Four IC sockets 40 are mounted on the board 70, and the IC socket 40 and the terminal connector connecting portion 71 are B
Wiring is connected at the bottom of the T board 70 and the like. Thus, the IC inserted in the IC socket 40 is tested.

【0006】[0006]

【発明が解決しようとする課題】このような従来の加速
寿命試験装置は、電源を共有しているICの1つが異常
となって大電流を流すと、他のICに正常なストレスが
印加されないという問題点があった。また、抵抗を入れ
た場合、抵抗による電圧降下が生じるという問題点があ
った。
In such a conventional accelerated life test apparatus, when one of the ICs sharing the power supply becomes abnormal and a large current is passed, normal stress is not applied to the other ICs. There was a problem. Further, when a resistor is inserted, there is a problem that a voltage drop occurs due to the resistor.

【0007】本発明の目的は、前記問題点を解決し、正
常なICにもストレスが印加されるようにし、かつ抵抗
による電圧降下が生じないようにした加速寿命試験装置
を提供することにある。
An object of the present invention is to solve the above-mentioned problems and to provide an accelerated life test apparatus in which a stress is applied to a normal IC and a voltage drop due to resistance does not occur. .

【0008】[0008]

【課題を解決するための手段】本発明の加速寿命試験装
置の構成は、電源入力と集積回路の電源端子との間に、
抵抗と、温度によりスイッチングスルスイッチとを設け
たことを特徴とする。
The structure of the accelerated life test apparatus according to the present invention is provided between a power input and a power terminal of an integrated circuit.
A resistor and a switching switch depending on temperature are provided.

【0009】[0009]

【実施例】図1は本発明の一実施例の加速寿命試験装置
を示す回路図である。図1において、本発明の一実施例
は、電源入力10とICの電源端子60との間に、スイ
ッチ30と抵抗20との並列体が接続されている。BT
ボードの電源入力10に、電源電圧が印加される。スイ
ッチ30は温度によりスイッチングするスイッチで、こ
のスイッチ30は通常はONで、aとつながっており、
入力10に印加された電源電圧は、スイッチ30を介し
て、抵抗を介さず、ICの電源端子60に直結される。
1 is a circuit diagram showing an accelerated life test apparatus according to an embodiment of the present invention. In FIG. 1, in one embodiment of the present invention, a parallel body of a switch 30 and a resistor 20 is connected between a power supply input 10 and a power supply terminal 60 of an IC. BT
A power supply voltage is applied to the power supply input 10 of the board. The switch 30 is a switch that switches depending on the temperature. This switch 30 is normally ON and is connected to a,
The power supply voltage applied to the input 10 is directly connected to the power supply terminal 60 of the IC through the switch 30 and not through the resistor.

【0010】図2において、BTボード上のICソケッ
ト40が示されており、図1のスイッチ30は図2にお
いてはスイッチ配置部50に配置される。これにより、
ICソケットに挿入されたICに異常は生じて大電流が
流れて発熱した場合、ICの直下に配置された30スイ
ッチが発熱を感知して切り換わる事により、スイッチ3
0はOFFして、電源電圧は抵抗20を介してICに印
加され、抵抗20がカレントリミッタとして働くので、
ICの破壊を防ぐ事ができる。
FIG. 2 shows the IC socket 40 on the BT board, and the switch 30 of FIG. 1 is arranged in the switch arrangement portion 50 in FIG. This allows
When an abnormality occurs in the IC inserted in the IC socket and a large current flows and heat is generated, the switch 30 located immediately below the IC detects heat generation and switches.
0 is turned off, the power supply voltage is applied to the IC through the resistor 20, and the resistor 20 acts as a current limiter.
It is possible to prevent the destruction of the IC.

【0011】さらに、発熱したICに対しては、抵抗2
0を介して電源が供給されるが、他のICは電源と直結
されたままである。
Further, a resistance 2 is applied to the IC that generates heat.
Power is supplied through 0, but the other ICs remain directly connected to the power supply.

【0012】図3は本発明の他の実施例を示す回路図で
ある。
FIG. 3 is a circuit diagram showing another embodiment of the present invention.

【0013】図3において、本実施例は、抵抗20とス
イッチ31とが接続されているが、スイッチ31は温度
によりスイッチングするが、双極スイッチであり、通常
はa側と接続しているが、ICの発熱を感知してスイッ
チングすると、b側と接続される。
In FIG. 3, in the present embodiment, the resistor 20 and the switch 31 are connected. The switch 31 switches depending on the temperature, but it is a bipolar switch and is normally connected to the a side. When the heat generation of the IC is detected and switching is performed, it is connected to the b side.

【0014】通常は、電源入力10に印加された電源電
圧は、スイッチ31がa側と接続されているため、IC
の電源端子60と直結される。もし、ICが異常に発熱
した場合において、スイッチ31も図2のスイッチ配置
部50に配置されており、発熱を感知してスイッチ31
がスイッチングしで、b側と接続される。これにより、
電源電圧は、抵抗を介して、ICに印加される事とな
る。
Normally, the power supply voltage applied to the power supply input 10 is the IC because the switch 31 is connected to the side a.
Is directly connected to the power supply terminal 60. If the IC heats up abnormally, the switch 31 is also placed in the switch placement unit 50 of FIG.
Is switched and is connected to the b side. This allows
The power supply voltage is applied to the IC via the resistor.

【0015】本実施例は前記一実施例と異なるのは、ス
イッチ31がスイッチングする際にICに印加される電
圧がわずかの時間とぎれる事で、この時間を調整する事
により、ICをリセットする事が可能となる。
The present embodiment is different from the above-mentioned one embodiment in that the voltage applied to the IC when the switch 31 is switched is interrupted for a short time, and the IC is reset by adjusting this time. Is possible.

【0016】このように、本実施例によれば、電源入力
と試験対象となるICの電源端子との間に、抵抗と温度
によりスイッチングするスイッチを有し、通常動作時は
電源と試験対象となるICの電源端子はスイッチを介し
て直結されているが、試験対象のICが規定以上の発熱
をした場合は、その温度を感知してスイッチがスイッチ
ングをして、電源と試験対象となるICの電源端子が抵
抗を介してつながる事を特徴とする。
As described above, according to this embodiment, the switch for switching between resistance and temperature is provided between the power source input and the power source terminal of the IC to be tested. The power supply terminal of the IC is directly connected via a switch. However, if the IC under test generates more heat than specified, the switch senses the temperature and switches to the power supply and the IC under test. The power supply terminal of is connected through a resistor.

【0017】[0017]

【発明の効果】以上説明したように、本発明の加速寿命
試験装置は、通常は電源電圧を抵抗を介さずに直接IC
に印加し、試験中にICが異常となり発熱した場合、そ
のICに対してのみ抵抗を介して電圧を印加するので、
異常に際して、その影響が他のICに及ばすことがな
く、正常なICは抵抗を介さず電源を直結されたままで
あるという効果を有する。
As described above, in the accelerated life test apparatus of the present invention, normally, the power supply voltage is directly applied to the IC without using a resistor.
When the IC becomes abnormal and heat is generated during the test, the voltage is applied to the IC only through the resistor.
In the event of an abnormality, the effect does not affect other ICs, and a normal IC has an effect that the power supply is directly connected without a resistor.

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

【図1】本発明の一実施例の加速寿命試験装置を示す回
路図である。
FIG. 1 is a circuit diagram showing an accelerated life test apparatus according to an embodiment of the present invention.

【図2】本発明の一実施例のスイッチ配置位置を示す上
面図である。
FIG. 2 is a top view showing a switch arrangement position according to an embodiment of the present invention.

【図3】本発明の他の実施例を示す回路図である。FIG. 3 is a circuit diagram showing another embodiment of the present invention.

【図4】従来のICの試験回路の一例を示す回路図であ
る。
FIG. 4 is a circuit diagram showing an example of a conventional IC test circuit.

【図5】従来のICの試験回路の他例を示す回路図であ
る。
FIG. 5 is a circuit diagram showing another example of a conventional IC test circuit.

【図6】BTボードを示す平面図である。FIG. 6 is a plan view showing a BT board.

【符号の説明】[Explanation of symbols]

10 電源入力 20 抵抗 30,31 温度によりスイッチングするスイッチ 40 ICソケット 50 スイッチ配置部 60 ICの電源端子 70 BTボード 71 端子コネクタ接続部 10 power input 20 resistance 30, 31 switch for switching according to temperature 40 IC socket 50 switch arrangement 60 power supply terminal of IC 70 BT board 71 terminal connector connection

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 電源入力と集積回路の電源端子との間
に、抵抗と、温度によりスイッチングスルスイッチとを
設けたことを特徴とする加速寿命試験装置。
1. An accelerated life test apparatus comprising a resistor and a switching switch depending on temperature between a power input and a power terminal of an integrated circuit.
JP4020825A 1992-02-06 1992-02-06 Acceleration service life testing device Withdrawn JPH05215824A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4020825A JPH05215824A (en) 1992-02-06 1992-02-06 Acceleration service life testing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4020825A JPH05215824A (en) 1992-02-06 1992-02-06 Acceleration service life testing device

Publications (1)

Publication Number Publication Date
JPH05215824A true JPH05215824A (en) 1993-08-27

Family

ID=12037819

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4020825A Withdrawn JPH05215824A (en) 1992-02-06 1992-02-06 Acceleration service life testing device

Country Status (1)

Country Link
JP (1) JPH05215824A (en)

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Effective date: 19990518