JPS636476A - Testing method for hybrid ic - Google Patents

Testing method for hybrid ic

Info

Publication number
JPS636476A
JPS636476A JP61150962A JP15096286A JPS636476A JP S636476 A JPS636476 A JP S636476A JP 61150962 A JP61150962 A JP 61150962A JP 15096286 A JP15096286 A JP 15096286A JP S636476 A JPS636476 A JP S636476A
Authority
JP
Japan
Prior art keywords
voltage
power supply
hybrid
power source
type
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
JP61150962A
Other languages
Japanese (ja)
Inventor
Seiichi Kageyama
影山 精一
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 Corp
Original Assignee
Toshiba Corp
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 Corp filed Critical Toshiba Corp
Priority to JP61150962A priority Critical patent/JPS636476A/en
Publication of JPS636476A publication Critical patent/JPS636476A/en
Pending legal-status Critical Current

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  • Tests Of Electronic Circuits (AREA)

Abstract

PURPOSE:To easily measure whether or not power source wiring is broken and the dynamic characteristics of an input clamp diode by applying a voltage to input terminals of a CMOS type IC and measuring a voltage outputted to power source terminals when a hybrid IC is tested. CONSTITUTION:Two CMOS type ICs 1 and 2 are mounted on the hybrid IC and wiring patterns of those CMOS type ICs 1 and 2 are connected to power source terminals 4 and 5. Further, a voltage source VS6 is connected to one of input terminals IN0-IN9 and a voltmeter VM7 is connected to the power source terminals 4 and 5. Normally, the voltage value obtained by subtracting the forward voltage drop across the clamp diode of the IC1 or IC2 from the voltage value of the VS6 is read on the VM7, but if the power source wiring of, for example, the IC1 is broken, no voltage measured, so the disconnection of the power source wiring is easily known.

Description

【発明の詳細な説明】 [発明の目的1 (産業上の利用分野) 本発明は、CMOS型ICを搭載したハイブリッドIC
における0MO3型ICへの電源配線の断線の有無等を
試験するのに最適なハイブリッドICの試験方法に関す
る。
[Detailed Description of the Invention] [Objective of the Invention 1 (Field of Industrial Application) The present invention provides a hybrid IC equipped with a CMOS type IC.
The present invention relates to a hybrid IC testing method that is optimal for testing the presence or absence of disconnection in the power supply wiring to an 0MO3 type IC.

〈従来の技術) 従来から0MO3型ICの入力段には、クランプダイオ
ードが介挿されている。すなわち第2図に示すように、
入力端子1と電源端子2との間に、ダイオードDI 、
02のアノード側を入力端子1側に、カソード側を電源
端子2側に接続して介挿するとともに、ダイオードD+
 、D2のアノード側にグランド端子3を接続して構成
されている。
<Prior Art> Conventionally, a clamp diode has been inserted in the input stage of an 0MO3 type IC. That is, as shown in Figure 2,
A diode DI is connected between input terminal 1 and power supply terminal 2.
The anode side of 02 is connected to the input terminal 1 side, the cathode side is connected to the power supply terminal 2 side, and the diode D+
, D2 are connected to the ground terminal 3 on the anode side.

そして、これらのダイオードDI、D2はいずれも0M
O3型ICのチップ内部に設けられており、入力端子2
にグランドレベルより低い電圧あるいは電源より高い電
圧が印加された場合に、これがCMO3型IC型部C内
部ンジスタ下+、T2に印加されるのを防ぐ役目を果た
している。
And these diodes DI and D2 are both 0M
It is provided inside the O3 type IC chip, and the input terminal 2
If a voltage lower than the ground level or higher than the power supply is applied to the CMO3 type IC type part C, this serves to prevent it from being applied to the internal transistor T2.

またこのようなダイオードD+ 、D2を入力段に有す
る0MO3型ICにおいては、電源電圧と等しい電圧を
未使用の入力端子1に印加し、これらの端子を処理する
ことが行なわれている。
Further, in the 0MO3 type IC having such diodes D+ and D2 at the input stage, a voltage equal to the power supply voltage is applied to unused input terminals 1 to process these terminals.

(発明が解決しようとする問題点)   ゛しかしなが
らこのような従来の0MO3型ICでは、電源端子2に
電圧を印加しない状態で入力端子1に電源電圧に等しい
電圧を印加すると、ダイオードD1が順方向になり、入
力端子1からこのダイオードD1を介して電源端子2に
見かけ上の電圧が印加される。
(Problems to be Solved by the Invention) ゛However, in such a conventional 0MO3 type IC, when a voltage equal to the power supply voltage is applied to the input terminal 1 while no voltage is applied to the power supply terminal 2, the diode D1 changes in the forward direction. An apparent voltage is applied from the input terminal 1 to the power supply terminal 2 via this diode D1.

従って、この場合電源配線の断線等で0MO3型ICの
電源端子2に電源からの電圧が印加されない状態におい
ても入力端子1から印加された電圧により0MO3型I
Cが動作し、断線等が検出されないことがめった。
Therefore, in this case, even if the voltage from the power supply is not applied to the power supply terminal 2 of the 0MO3 type IC due to a break in the power supply wiring, etc., the voltage applied from the input terminal 1 will cause the 0MO3 type I
C was working, and wire breaks were rarely detected.

本発明はこのような問題を解決するためになされたもの
で、チップ内部に入力クランプダイオードを有する0M
O3型ICを搭載したハイブリッドICにおいて、その
0MO3型ICへの電源配線の断線の有無さらには入力
クランプダイオードの動特性をも容易にかつ正確に試験
をすることができるハイブリットICの試験方法を提供
することを目的とする。
The present invention was made to solve such problems, and is a 0M
We provide a hybrid IC testing method that can easily and accurately test the presence or absence of disconnection in the power supply wiring to the OMO3 type IC, as well as the dynamic characteristics of the input clamp diode, in a hybrid IC equipped with an O3 type IC. The purpose is to

[発明の構成] (問題点を解決するための手段) すなわち本発明のハイブリッドICの試験方法は、入力
端子と電源端子との間に入力クランプダイオードが介挿
された0MO3型ICを搭載したハイブリッドICの試
験方法において、前記入力端子に電圧を印加するととも
に前記電源端子に電気信号計測搬器を接続し、電気信号
を測定することを特徴としている。
[Structure of the Invention] (Means for Solving the Problems) That is, the hybrid IC testing method of the present invention tests a hybrid IC equipped with a 0MO3 type IC in which an input clamp diode is inserted between an input terminal and a power supply terminal. The IC testing method is characterized in that a voltage is applied to the input terminal, and an electrical signal measuring device is connected to the power supply terminal to measure the electrical signal.

(作用) 本発明のハイブリッドICの試験方法において、0MO
3型ICへの電源配線が断線等がなく正しくなされてい
れば、入力端子に印加された電圧に従った一定の電圧が
電源端子に生起することになる。
(Function) In the hybrid IC testing method of the present invention, 0 MO
If the power supply wiring to the type 3 IC is properly wired without any disconnections, a constant voltage will be generated at the power supply terminal in accordance with the voltage applied to the input terminal.

そこで、この生起された電圧を電源端子に接続した電気
信号計測機器により測定するこてにより、電源配線の断
線の有無さらには入力クランプダイオードの動特性をも
容易にかつ正確に試験をすることができるようになる。
Therefore, by measuring this generated voltage with an electrical signal measuring device connected to the power supply terminal, it is possible to easily and accurately test for disconnections in the power supply wiring as well as the dynamic characteristics of the input clamp diode. become able to.

(実施例) 以下、本発明の実施例を図面に基づいて説明する。(Example) Embodiments of the present invention will be described below based on the drawings.

第1は本発明の一実施例を示す配線図である。The first is a wiring diagram showing an embodiment of the present invention.

同図に示すように、このハイブリッドICには、2つの
CMO3型O31,2が搭載されている。
As shown in the figure, this hybrid IC is equipped with two CMO3 type O31 and O32.

これらのICはそれぞれ第2図と同じ構成の入力段を介
して入力端子INO〜4、IN5〜9に接続されている
。またこれらのCM OS型ICI、2に接続された電
源端子4.5には、これらのCMO3型ICI、2の配
線パターンに接続されている。
These ICs are connected to input terminals INO-4 and IN5-9 through input stages having the same configuration as in FIG. 2, respectively. Further, the power supply terminals 4.5 connected to these CMOS type ICIs, 2 are connected to the wiring patterns of these CMO3 type ICIs, 2.

そして入力端子INO〜9のいずれかに、電圧源VS6
を接続し、電源端子4.5に電圧計V)17を接続して
いる。
Then, a voltage source VS6 is applied to any of the input terminals INO to 9.
A voltmeter (V) 17 is connected to the power supply terminal 4.5.

このように構成した実施例においては、通常電圧計VH
7に、電圧源Vs6の電圧1直からCMO8型ICIあ
るいはCM OS型IC2内部のクランプダイオードの
順方向の電圧降下分をさし引いた電圧の値が測定される
In the embodiment configured in this way, the voltmeter VH
7, the voltage value obtained by subtracting the voltage drop in the forward direction of the clamp diode inside the CMO8 type ICI or the CMOS type IC2 from the voltage 1 voltage of the voltage source Vs6 is measured.

しかしながら図にXで示すように、例えばCMO8型O
81への電源配線に断線があった場合において、このI
Cの入力端子INO〜4に電圧源Vs6を接続したとき
、電圧計V)l 7電圧が観測されない。このことから
電源配線の断線の有無および位置を容易に判定すること
ができる。
However, as shown by X in the figure, for example, CMO8 type O
If there is a break in the power supply wiring to 81, this I
When the voltage source Vs6 is connected to the input terminal INO~4 of C, no voltage is observed on the voltmeter V)l7. From this, it is possible to easily determine the presence or absence and location of a break in the power supply wiring.

なお、以上の実施例においては、入力端子に直流電源を
接続し、電源端子に電気信号計測は器として電圧計を接
続した例について説明したが、本発明はこの例に限定さ
れない。
In the above embodiments, an example was described in which a DC power source was connected to the input terminal and a voltmeter was connected to the power source terminal as a device for measuring electrical signals, but the present invention is not limited to this example.

すなわち、電圧源として交流電源を使用するとともに電
源端子にオシロスコープを接続することにより、電源配
線の断線の有無ばかりでなく、0MO3型ICに含まれ
たクランプダイオードの動特性をも測定することができ
る。
In other words, by using an AC power supply as the voltage source and connecting an oscilloscope to the power supply terminal, it is possible to measure not only the presence or absence of disconnections in the power supply wiring, but also the dynamic characteristics of the clamp diode included in the 0MO3 type IC. .

[発明の効果] 以上の説明から明らかなように本発明によれば、ハイブ
リッドICにおいて0MO3型ICへの電源配線の断線
の有無さらには入力クランプダイオードの動特性をも容
易にかつ正確に試験することができる。
[Effects of the Invention] As is clear from the above description, according to the present invention, it is possible to easily and accurately test the presence or absence of disconnection in the power supply wiring to the 0MO3 type IC in a hybrid IC, as well as the dynamic characteristics of the input clamp diode. be able to.

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

第1図は本発明の方法の一実施例を示す配線図、第2図
は0MO3型ICの入力段を示す配線図である。 INO〜9・・・入力端子 4.5・・・電源端子 IC1、IC2・・・・・・・・・0MO3型IC6・
・・・・・・・・・・・・・・・・・・・・電圧源7・
・・・・・・・・・・・・・・・・・・・・電圧計出願
人      株式会社 東芝 代理人 弁理士  須 山 佐 − 第2図
FIG. 1 is a wiring diagram showing an embodiment of the method of the present invention, and FIG. 2 is a wiring diagram showing an input stage of an 0MO3 type IC. INO~9...Input terminal 4.5...Power terminal IC1, IC2...0MO3 type IC6.
・・・・・・・・・・・・・・・・・・・・・ Voltage source 7・
・・・・・・・・・・・・・・・・・・Voltmeter Applicant Toshiba Corporation Agent Patent Attorney Satoshi Suyama - Figure 2

Claims (1)

【特許請求の範囲】[Claims] (1)入力端子と電源端子との間に入力クランプダイオ
ードが介挿されたCMOS型ICを搭載したハイブリッ
ドICの試験方法において、前記入力端子に電圧を印加
するとともに前記電源端子に電気信号計測機器を接続し
、電気信号を測定することを特徴とするハイブリッドI
Cの試験方法。
(1) In a test method for a hybrid IC equipped with a CMOS type IC in which an input clamp diode is inserted between an input terminal and a power supply terminal, a voltage is applied to the input terminal and an electric signal measuring device is connected to the power supply terminal. Hybrid I is characterized in that it connects and measures electrical signals.
C test method.
JP61150962A 1986-06-27 1986-06-27 Testing method for hybrid ic Pending JPS636476A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61150962A JPS636476A (en) 1986-06-27 1986-06-27 Testing method for hybrid ic

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61150962A JPS636476A (en) 1986-06-27 1986-06-27 Testing method for hybrid ic

Publications (1)

Publication Number Publication Date
JPS636476A true JPS636476A (en) 1988-01-12

Family

ID=15508239

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61150962A Pending JPS636476A (en) 1986-06-27 1986-06-27 Testing method for hybrid ic

Country Status (1)

Country Link
JP (1) JPS636476A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007309955A (en) * 2006-05-15 2007-11-29 Canon Inc Door opening/closing detection device and image forming apparats
JP2012251772A (en) * 2011-05-31 2012-12-20 Renesas Electronics Corp Semiconductor device, electronic apparatus, and inspection method for semiconductor device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007309955A (en) * 2006-05-15 2007-11-29 Canon Inc Door opening/closing detection device and image forming apparats
JP2012251772A (en) * 2011-05-31 2012-12-20 Renesas Electronics Corp Semiconductor device, electronic apparatus, and inspection method for semiconductor device

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