JP2004012436A - Semiconductor device and its burn-in operation testing device and test method - Google Patents

Semiconductor device and its burn-in operation testing device and test method Download PDF

Info

Publication number
JP2004012436A
JP2004012436A JP2002170733A JP2002170733A JP2004012436A JP 2004012436 A JP2004012436 A JP 2004012436A JP 2002170733 A JP2002170733 A JP 2002170733A JP 2002170733 A JP2002170733 A JP 2002170733A JP 2004012436 A JP2004012436 A JP 2004012436A
Authority
JP
Japan
Prior art keywords
burn
semiconductor device
operation test
power supply
during
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
JP2002170733A
Other languages
Japanese (ja)
Inventor
Yasuo Sakurai
桜井 康雄
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 Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP2002170733A priority Critical patent/JP2004012436A/en
Publication of JP2004012436A publication Critical patent/JP2004012436A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Tests Of Electronic Circuits (AREA)
  • Testing Or Measuring Of Semiconductors Or The Like (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To prevent generation of burn-in stress deficiency during a burn-in operation test of a semiconductor device. <P>SOLUTION: This semiconductor device has a means for detecting an overcurrent flow during the burn-in operation test. The detection means compares the voltage at a first spot in power source conductors with the voltage at a second spot at a distance from the first spot, to thereby detect the overcurrent flow during the burn-in operation test. A means is also provided, for cutting-off a current supply to the semiconductor device when detecting the overcurrent flow in the semiconductor device during the test. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は半導体装置およびそのバーンイン動作試験装置・試験方法に関する。
【0002】
【従来の技術】
従来、半導体装置の不良を短期間に検出するために、バーンイン動作試験が行われている。
【0003】
従来のバーンイン動作試験方法のフロー図を図4に示す。半導体装置の拡散および配線パターンニングなどを行うウエハ形成工程31が完了した後、プローブ検査工程32によりパターン不良などを除く。次に、図の左側のフローのように組立工程33の後にバーンイン動作試験34を行うか、または、図の右側のフローのようにバーンイン動作試験35の後に組立工程36を行う。その後、出荷検査工程37を行う。
【0004】
図5は、従来の半導体装置のバーンイン動作試験装置の要部図面である。ここでは、バーンイン装置電源38とバーンイン装置GND39とにつながったバーンイン装置43に、図4に示したプローブ検査工程32後の良品半導体装置40が複数装着され、バーンイン動作試験が行われる。
【0005】
【発明が解決しようとする課題】
このような図5に示すバーンイン動作試験装置を用いたバーンイン動作試験においては、バーンイン動作試験中に不良半導体装置41が発生した場合でも、この不良半導体装置41を除去できない。このため、不良半導体装置41の不良が過電流42が流れる不良である場合は、バーンイン装置電源38の能力が低下し、バーンインストレス不足が発生する。すなわち、検証不足の半導体装置が出荷されるおそれがある。
【0006】
本発明は、このような課題を解決するもので、バーンイン動作試験中におけるバーンインストレス不足の発生を防止できるようにすることを目的とする。
【0007】
【課題を解決するための手段】
上記の課題を解決するために、本発明の半導体装置は、バーンイン動作試験中に過電流が流れたことを検出する手段を有するものである。
【0008】
このような構成であると、バーンイン動作試験中に過電流が流れたことを検出できるため、それにもとづき適当な対処を行うことで、バーンイン装置電源の能力が低下してバーンインストレス不足が発生することによる、検証不足の半導体装置が出荷されるおそれを防止することができる。
【0009】
また本発明の半導体装置は、電源配線における第1の箇所の電圧と、前記第1の箇所から距離をおいた第2の箇所の電圧とを比較することで、バーンイン動作試験中に過電流が流れたことを検出するように構成されているようにしたものである。
【0010】
このような構成であると、簡単な構成でありながら、バーンイン動作試験中に過電流が流れたことを確実に検出することができる。
本発明のバーンイン動作試験装置は、試験中に半導体装置に過電流が流れたことが検知されたときに当該半導体装置への通電を遮断する手段を有するようにしたものである。
【0011】
このような構成であると、過電流が流れた半導体装置への通電が遮断されることで、バーンイン装置電源の能力が低下してバーンインストレス不足が発生することが防止され、このため検証不足の半導体装置が出荷されるおそれを防止することができる。
【0012】
本発明のバーンイン動作試験方法は、半導体装置のバーンイン動作試験中に前記半導体装置に過電流が流れたことを検出するものである。
このようにすると、バーンイン動作試験中に過電流が流れたことを検出するため、それにもとづき適当な対処を行うことで、バーンイン装置電源の能力が低下してバーンインストレス不足が発生することによる、検証不足の半導体装置が出荷されるおそれを防止することができる。
【0013】
また本発明のバーンイン動作試験方法は、バーンイン動作試験中に半導体装置に過電流が流れたことを検出したときに、その半導体装置への通電を遮断するものである。
【0014】
このようにすると、過電流が流れた半導体装置への通電が遮断されることで、バーンイン装置電源の能力が低下してバーンインストレス不足が発生することが防止され、このため検証不足の半導体装置が出荷されるおそれを防止することができる。
【0015】
【発明の実施の形態】
以下、本発明の実施の形態について、図面を参照しながら具体的に説明する。図1は、本発明にもとづくインライン検査方法の一例を示す工程フロー図である。まず、ウエハ形成工程1の完了後、プローブ検査工程2を行う。次に、図の左側のフローのように組立工程3の後にバーンイン動作試験4を行うか、または、図の右側のフローのようにバーイン動作試験6の後に組立工程8を行う。そして、バーンイン動作試験4またはバーンイン動作試験6の途中で過電流不良のバーンイン不良を検出して、バーンイン中不良通電遮断5またはバーンイン中不良通電遮断7を行う。バーンイン動作試験4または組立工程8の後に出荷検査工程9を実施し、次いで半導体装置の出荷を行う。
【0016】
図2は、本発明の実施の形態の電圧検知回路の一例を示す半導体装置の回路構成図である。この図2に示す半導体装置10において、電源11から電源端子13を通して半導体装置10に電力を供給するための電源配線のうち、電源端子13の近傍の電源配線15に抵抗分圧器16を設けるとともに、電源端子13から距離をおいた位置の電源配線17に抵抗分圧器18を設ける。そして、抵抗分圧器16で示される電圧レベルと抵抗分圧器18で示される電圧レベルとを比較器21により比較し、その比較結果を検出出力端子22からバーンイン不良検出信号23として出力する。
【0017】
このような構成において、GND端子14を通してGND12に接続されたGND配線19と、電源端子13から距離をおいた位置の電源配線17との間でバーンイン不良としてリーク抵抗成分20が発生したときには、抵抗分圧器18で示される電圧レベルは抵抗分圧器16で示される電圧レベルよりも低下し、このため比較器21により検出出力端子22を通してバーンイン不良検出信号23が発生する。
【0018】
図3は、本発明の実施の形態のバーンイン動作試験装置の要部図面である。ここで、バーンイン装置電源24およびバーンイン装置GND25に接続されたバーンイン装置26に、図2示した電圧検知回路を備えた複数のバーンイン用良品半導体装置27が搭載されている。図3において、バーンイン動作試験中にバーンイン用良品半導体装置が過電流不良によりバーンイン不良半導体装置28となった場合には、このバーンイン不良半導体装置28からバーンイン不良検出信号23が出力される。そこで、このバーンイン不良検出信号23にもとづき、バーンイン不良半導体装置28に接続されたバーンイン通電遮断スイッチ30を動作させて、バーンイン不良半導体装置28への電源供給を停止する。
【0019】
この構成によれば、図1のバーンイン動作試験4またはバーンイン動作試験6において半導体装置の過電流を検出することで、バーンイン動作試験中に、バーンイン中不良通電遮断工程5またはバーンイン中不良通電遮断工程7によって、バーンイン不良を検出できるとともに、当該半導体装置への通電を遮断できる。よって、バーンイン装置電源24の能力低下にもとづくバーンインストレス不足を防止でき、このバーンインストレス不足を原因とした検証不足の半導体装置の出荷を、出荷検査工程9の以前で防止できる。
【0020】
【発明の効果】
以上のように本発明によると、半導体装置のバーンイン動作試験中に過電流が流れたことを検出できるため、それにもとづき過電流が流れた半導体装置への通電を遮断するなどの適当な対処を行うことで、バーンイン装置電源の能力が低下してバーンインストレス不足が発生することによる、検証不足の半導体装置が出荷されるおそれを防止することができる。
【図面の簡単な説明】
【図1】本発明の実施の形態の半導体装置のバーンイン動作試験方法の工程フロー図
【図2】本発明の実施の形態の半導体装置の回路構成図
【図3】本発明の実施の形態の半導体装置のバーンイン動作試験装置を示す図
【図4】従来の半導体装置のバーンイン動作試験方法の工程フロー図
【図5】従来の半導体装置のバーンイン動作試験装置を示す図
【符号の説明】
5  バーンイン中不良通電遮断
7  バーンイン中不良通電遮断
10  半導体装置
15  電源配線
16  抵抗分圧器
17  電源配線
18  抵抗分圧器
20  リーク抵抗成分
21  比較器
28  バーンイン不良半導体装置
30  通電遮断スイッチ
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a semiconductor device and a burn-in operation test device and test method thereof.
[0002]
[Prior art]
Conventionally, a burn-in operation test has been performed to detect a defect of a semiconductor device in a short time.
[0003]
FIG. 4 shows a flowchart of a conventional burn-in operation test method. After the completion of the wafer forming step 31 for performing the diffusion of the semiconductor device and the wiring patterning, etc., the pattern defect is removed by the probe inspection step 32. Next, a burn-in operation test 34 is performed after the assembly process 33 as shown in the flow on the left side of the drawing, or an assembly process 36 is performed after the burn-in operation test 35 as shown in the flow on the right side of the drawing. Thereafter, a shipping inspection step 37 is performed.
[0004]
FIG. 5 is a main part drawing of a conventional burn-in operation test device for a semiconductor device. Here, a plurality of non-defective semiconductor devices 40 after the probe inspection step 32 shown in FIG. 4 are mounted on the burn-in device 43 connected to the burn-in device power supply 38 and the burn-in device GND 39, and a burn-in operation test is performed.
[0005]
[Problems to be solved by the invention]
In such a burn-in operation test using the burn-in operation test apparatus shown in FIG. 5, even if a defective semiconductor device 41 occurs during the burn-in operation test, the defective semiconductor device 41 cannot be removed. Therefore, if the defective semiconductor device 41 is a defect in which the overcurrent 42 flows, the capability of the burn-in device power supply 38 is reduced, and insufficient burn-in stress occurs. That is, there is a possibility that a semiconductor device that has not been sufficiently verified is shipped.
[0006]
An object of the present invention is to solve such a problem and to prevent occurrence of shortage of burn-in stress during a burn-in operation test.
[0007]
[Means for Solving the Problems]
In order to solve the above-described problem, a semiconductor device according to the present invention has a means for detecting that an overcurrent flows during a burn-in operation test.
[0008]
With such a configuration, it is possible to detect that an overcurrent has flowed during the burn-in operation test, and by taking appropriate measures based on that, the capability of the burn-in device power supply is reduced and burn-in stress is insufficient. As a result, it is possible to prevent a semiconductor device that is not sufficiently verified from being shipped.
[0009]
Further, in the semiconductor device of the present invention, by comparing the voltage at the first location in the power supply wiring with the voltage at the second location at a distance from the first location, the overcurrent during the burn-in operation test is reduced. It is configured so as to detect the flow.
[0010]
With such a configuration, it is possible to reliably detect that an overcurrent has flowed during the burn-in operation test while having a simple configuration.
The burn-in operation test apparatus according to the present invention has means for interrupting the power supply to the semiconductor device when an overcurrent is detected during the test.
[0011]
With such a configuration, the power supply to the semiconductor device in which the overcurrent has flowed is cut off, thereby preventing the capability of the power supply of the burn-in device from being lowered and preventing the shortage of the burn-in stress from occurring. It is possible to prevent the semiconductor device from being shipped.
[0012]
A burn-in operation test method according to the present invention detects an overcurrent flowing in a semiconductor device during a burn-in operation test of the semiconductor device.
In this way, an overcurrent is detected during the burn-in operation test, and appropriate measures are taken based on the detection. It is possible to prevent a shortage of semiconductor devices from being shipped.
[0013]
Further, in the burn-in operation test method according to the present invention, when it is detected that an overcurrent flows in the semiconductor device during the burn-in operation test, the power supply to the semiconductor device is cut off.
[0014]
In this way, the power supply to the semiconductor device in which the overcurrent has flowed is cut off, thereby preventing the capability of the power supply of the burn-in device from being reduced and preventing the shortage of the burn-in stress from occurring. The possibility of being shipped can be prevented.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings. FIG. 1 is a process flow chart showing an example of an in-line inspection method according to the present invention. First, after completion of the wafer forming step 1, a probe inspection step 2 is performed. Next, a burn-in operation test 4 is performed after the assembling step 3 as shown in the flow on the left side of the figure, or an assembling step 8 is performed after the burn-in operation test 6 as shown in the flow on the right side of the figure. Then, during the burn-in operation test 4 or the burn-in operation test 6, a burn-in failure of an overcurrent failure is detected, and a failure current interruption during burn-in 5 or a failure current interruption during burn-in 7 is performed. After the burn-in operation test 4 or the assembling process 8, a shipping inspection process 9 is performed, and then the semiconductor device is shipped.
[0016]
FIG. 2 is a circuit configuration diagram of a semiconductor device illustrating an example of the voltage detection circuit according to the embodiment of the present invention. In the semiconductor device 10 shown in FIG. 2, among the power supply wires for supplying power to the semiconductor device 10 from the power supply 11 through the power supply terminal 13, a resistance voltage divider 16 is provided on a power supply wire 15 near the power supply terminal 13. A resistance voltage divider is provided on a power supply wiring at a position apart from the power supply terminal. Then, the comparator 21 compares the voltage level indicated by the resistor divider 16 with the voltage level indicated by the resistor divider 18, and outputs the comparison result as a burn-in failure detection signal 23 from a detection output terminal 22.
[0017]
In such a configuration, when a leak resistance component 20 occurs as a burn-in failure between the GND wiring 19 connected to the GND 12 through the GND terminal 14 and the power supply wiring 17 located at a distance from the power supply terminal 13, The voltage level indicated by the voltage divider 18 is lower than the voltage level indicated by the resistance voltage divider 16, so that the comparator 21 generates a burn-in failure detection signal 23 through the detection output terminal 22.
[0018]
FIG. 3 is a main part drawing of the burn-in operation test apparatus according to the embodiment of the present invention. Here, a plurality of good burn-in semiconductor devices 27 having the voltage detection circuit shown in FIG. 2 are mounted on a burn-in device 26 connected to the burn-in device power supply 24 and the burn-in device GND 25. In FIG. 3, when a good semiconductor device for burn-in becomes a burn-in defective semiconductor device 28 due to an overcurrent failure during a burn-in operation test, the burn-in defective semiconductor device 28 outputs a burn-in defect detection signal 23. Therefore, based on the burn-in failure detection signal 23, the burn-in conduction switch 30 connected to the burn-in failure semiconductor device 28 is operated to stop the power supply to the burn-in failure semiconductor device 28.
[0019]
According to this configuration, the overcurrent of the semiconductor device is detected in the burn-in operation test 4 or the burn-in operation test 6 of FIG. 7, the burn-in failure can be detected, and the power supply to the semiconductor device can be cut off. Therefore, it is possible to prevent shortage of burn-in stress due to a decrease in the capability of the burn-in device power supply 24, and to prevent shipment of semiconductor devices that are insufficiently verified due to the shortage of burn-in stress before the shipment inspection process 9.
[0020]
【The invention's effect】
As described above, according to the present invention, it is possible to detect that an overcurrent has flowed during a burn-in operation test of the semiconductor device. As a result, it is possible to prevent a semiconductor device that is insufficiently verified from being shipped due to a shortage of burn-in stress due to a decrease in the capability of the burn-in device power supply.
[Brief description of the drawings]
FIG. 1 is a process flowchart of a burn-in operation test method for a semiconductor device according to an embodiment of the present invention. FIG. 2 is a circuit configuration diagram of the semiconductor device according to an embodiment of the present invention. FIG. 4 is a view showing a conventional burn-in operation test method for a semiconductor device. FIG. 5 is a view showing a conventional burn-in operation test apparatus for a semiconductor device.
5 Faulty power cut-off during burn-in 7 Faulty power cut-off during burn-in 10 Semiconductor device 15 Power supply wiring 16 Resistive voltage divider 17 Power supply wiring 18 Resistive voltage divider 20 Leakage resistance component 21 Comparator 28 Burn-in defective semiconductor device 30 Power supply cutoff switch

Claims (5)

バーンイン動作試験中に過電流が流れたことを検出する手段を有することを特徴とする半導体装置。A semiconductor device having means for detecting that an overcurrent flows during a burn-in operation test. 電源配線における第1の箇所の電圧と、前記第1の箇所から距離をおいた第2の箇所の電圧とを比較することで、バーンイン動作試験中に過電流が流れたことを検出するように構成されていることを特徴とする請求項1記載の半導体装置。By comparing the voltage at the first location in the power supply wiring with the voltage at the second location away from the first location, it is possible to detect that an overcurrent has flowed during the burn-in operation test. The semiconductor device according to claim 1, wherein the semiconductor device is configured. 請求項1または2記載の半導体装置をバーンイン動作試験するための装置であって、試験中に前記半導体装置に過電流が流れたことが検知されたときに当該半導体装置への通電を遮断する手段を有することを特徴とするバーンイン動作試験装置。3. An apparatus for performing a burn-in operation test on a semiconductor device according to claim 1 or 2, wherein a means for interrupting power supply to the semiconductor device when an overcurrent is detected in the semiconductor device during the test is detected. A burn-in operation test device comprising: 半導体装置のバーンイン動作試験中に前記半導体装置に過電流が流れたことを検出することを特徴とするバーンイン動作試験方法。A burn-in operation test method, comprising detecting an overcurrent flowing in the semiconductor device during a burn-in operation test of the semiconductor device. バーンイン動作試験中に半導体装置に過電流が流れたことを検出したときに、その半導体装置への通電を遮断することを特徴とする請求項4記載のバーンイン動作試験方法。5. The burn-in operation test method according to claim 4, wherein when it is detected that an overcurrent has flowed through the semiconductor device during the burn-in operation test, the power supply to the semiconductor device is cut off.
JP2002170733A 2002-06-12 2002-06-12 Semiconductor device and its burn-in operation testing device and test method Pending JP2004012436A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002170733A JP2004012436A (en) 2002-06-12 2002-06-12 Semiconductor device and its burn-in operation testing device and test method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002170733A JP2004012436A (en) 2002-06-12 2002-06-12 Semiconductor device and its burn-in operation testing device and test method

Publications (1)

Publication Number Publication Date
JP2004012436A true JP2004012436A (en) 2004-01-15

Family

ID=30436875

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002170733A Pending JP2004012436A (en) 2002-06-12 2002-06-12 Semiconductor device and its burn-in operation testing device and test method

Country Status (1)

Country Link
JP (1) JP2004012436A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008038546A1 (en) * 2006-09-26 2008-04-03 Panasonic Corporation Semiconductor inspecting apparatus and semiconductor integrated circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008038546A1 (en) * 2006-09-26 2008-04-03 Panasonic Corporation Semiconductor inspecting apparatus and semiconductor integrated circuit

Similar Documents

Publication Publication Date Title
CN101191811B (en) Substrate detecting device and substrate detecting method
CN101149392A (en) Wafer test card over current protection method and related wafer test system
JP3179394B2 (en) Electrical inspection device and electrical inspection method for printed wiring board
JP2004012436A (en) Semiconductor device and its burn-in operation testing device and test method
JP2015055596A (en) Inspection device and inspection method
JP2008251716A (en) Semiconductor device and inspecting method therefor
JP2007141882A (en) Semiconductor device, its testing device and method
FR2644259A1 (en) Breakdown detection device for electronic equipment
US7233152B2 (en) Short detection circuit and short detection method
JP3783865B2 (en) Semiconductor device, burn-in test method, manufacturing method thereof, and burn-in test control circuit
KR100380093B1 (en) A method of current overload test
JPH05264676A (en) Method and device for detecting fault
JPH11223661A (en) Testing method and device for integrated circuit
JP2003232833A (en) Test method
JP2004354378A (en) Insulation inspection device and inspection method of electrical insulation section
JP2003229490A (en) Semiconductor device and its method for inspecting disconnection of power supply
JP2012026965A (en) Inspection apparatus and method for overcurrent detection cutoff circuit
CN112731073A (en) Probe card for time-lapse breakdown test and time-lapse breakdown test method
JP2005077387A (en) Testing process of semiconductor device
TW202411670A (en) Detection circuit
JP2006322786A (en) Bear chip mounting circuit device and its high power supply voltage impression test method
JPH11295385A (en) Apparatus for verifying contact of electronic circuit element
JP2008175598A (en) Noise testing device
JP2004257815A (en) Inspection method of semiconductor integrated circuit and semiconductor integrated circuit device
JP2005203435A (en) Semiconductor device and its screening method