WO2009081522A1 - 試験装置および測定装置 - Google Patents
試験装置および測定装置 Download PDFInfo
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- WO2009081522A1 WO2009081522A1 PCT/JP2008/003532 JP2008003532W WO2009081522A1 WO 2009081522 A1 WO2009081522 A1 WO 2009081522A1 JP 2008003532 W JP2008003532 W JP 2008003532W WO 2009081522 A1 WO2009081522 A1 WO 2009081522A1
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- voltage
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- under test
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2832—Specific tests of electronic circuits not provided for elsewhere
- G01R31/2836—Fault-finding or characterising
- G01R31/2839—Fault-finding or characterising using signal generators, power supplies or circuit analysers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/316—Testing of analog circuits
- G01R31/3161—Marginal testing
Definitions
- the present invention relates to a test apparatus and a measurement apparatus.
- This application is related to the following Japanese application and claims priority from the following Japanese application.
- test apparatus capable of measuring whether or not a predetermined current flows through a terminal of a device under test such as an IC, LSI, or memory when a voltage is applied to the terminal (for example, see Patent Document 1). Japanese Utility Model Publication No. 5-69690
- an object of one aspect of the present invention is to provide a test apparatus and a measurement apparatus that can solve the above-described problems. This object is achieved by a combination of features described in the independent claims.
- the dependent claims define further advantageous specific examples of the present invention.
- a test apparatus for testing a device under test, a performance board on which the device under test is placed, and an applied voltage that is provided outside the performance board and applied to the device under test.
- a power supply unit that adjusts the power supply voltage applied to the device under test based on the received applied voltage, and the applied voltage is received via the sense wiring inside the power supply unit.
- a test apparatus is provided that includes a voltage level measurement unit that measures a voltage value, and a determination unit that determines the quality of a device under test based on a measurement result in the voltage level measurement unit.
- FIG. 1 shows a circuit configuration of a test apparatus 10 according to an embodiment of the present invention. An example of the circuit structure of the electric current detection part 200 is shown.
- Test apparatus 20 Apparatus main body 30 Performance board 40 Cable 42 Shield 50 Power supply unit 100 Power supply board 110 Buffer 120 Voltage generation part 122 Voltage generator 124 Inverting amplifier 126 Current buffer 130 Measurement switching part 131,132,133 Terminal 140 Voltage level measurement part 200 Current detection unit 202 Current detection resistor 204 Differential circuit 300 Determination unit 401 Force wiring 402 Sense wiring 411, 412 Switches 450-1 to 450-n Signal lines 500-1 to 500-n Test unit 800 Device under test 810, 811 and 812 terminals
- FIG. 1 shows a circuit configuration of a test apparatus 10 according to an embodiment of the present invention.
- the test apparatus 10 is an apparatus for testing a device under test 800 and includes an apparatus main body 20 and a performance board 30.
- the apparatus main body 20 is provided with a power supply unit 50 having a power supply substrate 100 and a determination unit 300, and a plurality of test units 500-1 to 500-n.
- a device under test 800 is placed on the performance board 30.
- the apparatus main body 20 and the performance board 30 are electrically connected by a cable 40 and a plurality of signal lines 450-1 to 450-n.
- the cable 40 includes a force wiring 401 and a sense wiring 402, and a shield 42 provided around the force wiring 401 and the sense wiring 402.
- One end of each of the force wiring 401 and the sense wiring 402 is electrically connected to the terminal 810 of the device under test 800, and the other end is electrically connected to the power supply unit 50.
- switches 411 and 412 are provided at portions of the force wiring 401 and the sense wiring 402 on the apparatus main body 20 side, respectively. The switches 411 and 412 electrically disconnect the power supply unit 50 and the device under test 800 when the power supply unit 50 is not used, and when the power supply unit 50 is used, the power supply unit 50 and the device under test 800 are electrically disconnected. Are electrically connected.
- each of the signal lines 450-1 to 450-n is electrically connected to a terminal different from the terminal 810 of the device under test 800, and the other end is connected to the plurality of test units 500-. It is electrically connected to the corresponding test unit in 1-500-n.
- both ends of the signal line 450-1 are electrically connected to the terminal 811 of the device under test 800 and the test unit 500-1, respectively, and both ends of the signal line 450-n are respectively terminals of the device under test 800. 812 and the test unit 500-n.
- the power supply unit 50 applies a power supply voltage to the terminal 810 of the device under test 800 via the force wiring 401 and receives an applied voltage applied to the terminal 810 of the device under test 800 via the sense wiring 402.
- the power supply voltage is adjusted based on the received applied voltage.
- a voltage generation unit 120 On the substrate of the power supply substrate 100, a voltage generation unit 120, a measurement switching unit 130, a voltage level measurement unit 140, and a current detection unit 200 are formed.
- the other end of the force wiring 401 is connected to the output terminal of the voltage generation unit 120, and the other end of the sense wiring 402 is connected to the non-inverting input terminal of the buffer 110.
- the voltage generation unit 120 includes a buffer 110, a voltage generator 122, an inverting amplifier 124, and a current buffer 126.
- the voltage generator 122 is connected to the inverting input terminal of the inverting amplifier 124 via a resistor, and outputs a voltage having a predetermined magnitude.
- the buffer 110 has a negative feedback connection between its output terminal and inverting input terminal.
- the output terminal of the buffer 110 is connected to the inverting input terminal of the inverting amplifier 124 via a resistor, and the output terminal is also connected to the input terminal of the voltage level measuring unit 140 via the measurement switching unit 130. It is connected.
- the buffer 110 receives the applied voltage applied to the terminal 810 of the device under test 800 via the sense wiring 402
- the buffer 110 outputs an adjustment voltage corresponding to the received applied voltage to the inverting amplifier 124.
- the buffer 110 is a voltage follower circuit, and outputs an adjustment voltage having a magnitude substantially equal to the received applied voltage to the inverting amplifier 124.
- the inverting amplifier 124 has an inverting input terminal connected to the output terminal of the buffer 110 and the voltage generator 122 through resistors, and a non-inverting input terminal is grounded.
- the inverting amplifier 124 outputs a voltage obtained by inverting and amplifying the voltage output from the voltage generator 122 at a predetermined amplification factor as a power supply voltage.
- This power supply voltage is set to a magnitude corresponding to a voltage (applied voltage) to be applied to the terminal 810 of the device under test 800.
- the inverting amplifier 124 adjusts the magnitude of the power supply voltage applied to the device under test 800 to reduce the fluctuation when the magnitude of the adjustment voltage output from the buffer 110 fluctuates due to fluctuation in the magnitude of the applied voltage. . For example, when the adjustment voltage fluctuates in a decreasing direction, the inverting amplifier 124 increases the power supply voltage. Further, when the adjustment voltage fluctuates in the increasing direction, the inverting amplifier 124 decreases the power supply voltage.
- a current buffer 126 may be further provided between the output terminal of the inverting amplifier 124 and the terminal 810 as in this example.
- the current buffer 126 supplies a power supply current corresponding to the magnitude of the power supply voltage from the inverting amplifier 124 to the terminal 810 of the device under test 800.
- the current detection unit 200 is provided between the current buffer 126 and the terminal 810.
- the current detection unit 200 detects the current value of the power supply current transmitted through the force wiring 401 and outputs a signal corresponding to the detection result.
- a specific configuration of the current detection unit 200 will be separately described in detail below.
- the measurement switching unit 130 has terminals 131, 132, and 133, and can switch between a state in which the terminals 131 and 132 are connected and a state in which the terminals 131 and 133 are connected.
- the measurement switching unit 130 measures the applied voltage applied to the terminal 810 of the device under test 800 when the power supply unit 50 measures the power supply current flowing through the terminal 810 of the device under test 800. Accordingly, the state in which the terminal 131 and the terminal 132 are connected and the state in which the terminal 131 and the terminal 133 are connected are switched.
- the measurement switching unit 130 switches to a state in which the terminal 131 and the terminal 132 are connected.
- the output end of the buffer 110 is connected to the input end of the voltage level measurement unit 140, and the adjustment voltage is input from the buffer 110 to the voltage level measurement unit 140.
- the measurement switching unit 130 switches to a state in which the terminal 131 and the terminal 133 are connected.
- the input terminal of the voltage level measurement unit 140 is connected to the output terminal of the current detection unit 200, and the signal output from the current detection unit 200 is input to the voltage level measurement unit 140.
- the voltage level measurement unit 140 measures the adjustment voltage from the buffer 110 when the measurement switching unit 130 switches to the state where the terminals 131 and 132 are connected, and the measurement switching unit 130 measures the terminals 131 and 133.
- the signal from the differential circuit 204 is measured when the state is switched to the state where the two are connected.
- the measurement switching unit 130 may alternately switch between a state in which the terminal 131 and the terminal 132 are connected and a state in which the terminal 131 and the terminal 133 are connected, for example, every predetermined period.
- the voltage level measurement unit 140 can alternately measure the adjustment voltage from the buffer 110 and the signal from the differential circuit 204 every predetermined period.
- the voltage level measurement unit 140 outputs the measurement results of the adjustment voltage from the buffer 110 and the signal from the differential circuit 204 to the determination unit 300.
- the determination unit 300 determines the quality of the device under test 800 based on the measurement result from the voltage level measurement unit 140. For example, the determination unit 300 detects the measurement result from the voltage level measurement unit 140 while the inverting amplifier 124 is outputting the power supply voltage. Then, the determination unit 300 calculates the applied voltage applied to the terminal 810 of the device under test 800 and the power supply current flowing through the terminal 810 based on the measurement result.
- the determination unit 300 determines that the device under test 800 is defective when the calculated power supply current continues longer or longer than a predetermined range for a predetermined time width, When the adjustment voltage becomes a value within a predetermined range while being shorter than the time width, the device under test 800 is determined to be good.
- the determination unit 300 determines that the voltage applied to the device under test 800 by the power supply unit 50 when the calculated applied voltage is larger or smaller than a predetermined range for a longer time than a predetermined time width. If the device under test 800 is determined to be defective and the calculated applied voltage becomes a value within a predetermined range for a time shorter than the time width, the device under test It is determined that the application of the voltage to 800 is successful, or the device under test 800 is determined to be good. Note that the determination unit 300 may store the determination result as data, and may display the result on a display unit such as a display.
- FIG. 2 shows an example of the circuit configuration of the current detection unit 200.
- the current detection unit 200 includes a current detection resistor 202 provided on a force wiring 401 between the current buffer 126 and the terminal 810 of the device under test 800, and a differential circuit 204.
- each of the differential input terminals is connected to one of both ends of the current detection resistor 202, and the output terminal is connected to the input end of the voltage level measuring unit 140 via the measurement switching unit 130. Yes.
- the differential circuit 204 detects a potential difference between both ends of the current detection resistor 202 and outputs a signal corresponding to the potential difference to the voltage level measurement unit 140.
- the voltage level measurement unit 140 directly receives the applied voltage applied to the terminal 810 of the device under test 800 via the sense wiring 402 and determines the measurement result. You may output to the part 300.
- the determination unit 300 determines pass / fail of the device under test 800 based on the applied voltage received from the voltage level measurement unit 140.
- the voltage level measuring unit 140 may stop the operation of the logic circuit of the device under test 800 and measure the signal from the differential circuit 204 in a stationary state.
- the determination unit 300 calculates a power supply current in the logic state, that is, a quiescent current (IDDQ) based on the measurement result of the signal received from the voltage level measurement unit 140, and calculates the calculated quiescent current.
- a quiescent current IDDQ
- the quality of the device under test 800 is determined based on the above.
- the determination unit 300 may be provided integrally with the power supply substrate 100 together with the voltage level measurement unit 140 and the voltage generation unit 120.
- the voltage level measurement unit 140 may be provided separately from the power supply substrate 100 inside the power supply unit 50.
- the voltage level measurement unit 140 may be provided outside the power supply unit 50.
- the voltage level measurement unit 140 that measures the applied voltage applied to the terminal 810 of the device under test 800 is integrally provided on the power supply substrate 100 together with the voltage generation unit 120. Since the power supply unit 50 is provided, the applied voltage can be measured without separately connecting a dedicated measuring device to the terminal 810 of the device under test 800 in order to measure the applied voltage. Further, since the power supply unit 50 can also measure the power supply current flowing through the terminal 810 of the device under test 800 using the current detection unit 200 and the voltage level measurement unit 140, the power supply unit 50 can be connected to the terminal 810 to measure the power supply current. The power supply current can be measured without separately connecting a dedicated measuring device.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Tests Of Electronic Circuits (AREA)
- Testing Of Individual Semiconductor Devices (AREA)
Abstract
Description
1.特願2007-331107 出願日 2007年12月21日
そこで本発明の1つの側面においては、上記の課題を解決することのできる試験装置および測定装置を提供することを目的とする。この目的は請求の範囲における独立項に記載の特徴の組み合わせにより達成される。また従属項は本発明の更なる有利な具体例を規定する。
20 装置本体
30 パフォーマンスボード
40 ケーブル
42 シールド
50 電源ユニット
100 電源基板
110 バッファ
120 電圧生成部
122 電圧発生器
124 反転増幅器
126 電流バッファ
130 測定切替部
131、132、133 端子
140 電圧レベル測定部
200 電流検出部
202 電流検出用抵抗
204 差動回路
300 判定部
401 フォース配線
402 センス配線
411、412 スイッチ
450-1~450-n 信号線
500-1~500-n 試験ユニット
800 被試験デバイス
810、811、812 端子
Claims (8)
- 被試験デバイスを試験する試験装置であって、
前記被試験デバイスを載置するパフォーマンスボードと、
前記パフォーマンスボードの外部に設けられ、前記被試験デバイスに印加される印加電圧をセンス配線を介して受け取り、受け取った前記印加電圧に基づいて出力する電源電圧を調整する電源ユニットと、
前記印加電圧を前記センス配線を介して受け取り、受け取った前記印加電圧の電圧値を測定する電圧レベル測定部と、
前記電圧レベル測定部における測定結果に基づいて、前記被試験デバイスの良否を判定する判定部と
を備える試験装置。 - 前記電源ユニットは、
前記センス配線を介して前記印加電圧を受け取り、受け取った前記印加電圧に応じた調整用電圧を出力するバッファと、
前記調整用電圧に応じた前記電源電圧を生成する電圧生成部と
を有し、
前記電圧レベル測定部は、前記バッファが出力する前記調整用電圧の電圧値を測定する
請求項1に記載の試験装置。 - 前記電源ユニットは、
前記バッファおよび前記電圧生成部が形成される電源基板を更に有し、
前記電圧レベル測定部は、前記電源基板に設けられる
請求項2に記載の試験装置。 - 前記電源ユニットは、前記バッファの出力端と、前記電圧レベル測定部の入力端とを接続するか否かを切り替える測定切替部を更に有する
請求項2に記載の試験装置。 - 前記電源ユニットの内部で生成した前記電源電圧を前記被試験デバイスに与えるフォース配線と、
前記電源ユニットの内部において、前記フォース配線を伝送する電源電流の電流値を検出する電流検出部と
を更に備える
請求項4に記載の試験装置。 - 前記電流検出部は、
前記電源ユニットの内部における前記フォース配線上に設けられた電流検出用抵抗と、
前記電流検出用抵抗の両端の電位差を検出する差動回路と
を有し、
前記測定切替部は、前記印加電圧を測定する場合に、前記電圧レベル測定部の入力端に前記バッファの出力端を接続し、前記電源電流を測定する場合に、前記電圧レベル測定部の入力端に前記差動回路の出力端を接続する
する請求項5に記載の試験装置。 - 前記測定切替部は、所定の期間毎に、前記電圧レベル測定部の入力端に前記バッファおよび前記差動回路のいずれを接続するかを切り替え、
前記判定部は、前記電圧レベル測定部における測定結果に基づいて、前記被試験デバイスに印加される前記印加電圧および前記電源電流を算出する
請求項6に記載の試験装置。 - 被測定デバイスに印加される印加電圧を測定する測定装置であって、
前記被測定デバイスを載置するパフォーマンスボードと、
前記パフォーマンスボードの外部に設けられ、前記被測定デバイスに印加される印加電圧をセンス配線を介して受け取り、受け取った前記印加電圧に基づいて前記被測定デバイスに与える電源電圧を調整する電源ユニットと、
前記印加電圧を、前記電源ユニットの内部において前記センス配線を介して受け取り、受け取った前記印加電圧の電圧値を測定する電圧レベル測定部と
を備える測定装置。
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JP2009546926A JPWO2009081522A1 (ja) | 2007-12-21 | 2008-11-28 | 試験装置および測定装置 |
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JP2007-331107 | 2007-12-21 | ||
JP2007331107 | 2007-12-21 |
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WO2009081522A1 true WO2009081522A1 (ja) | 2009-07-02 |
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ID=40800840
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PCT/JP2008/003532 WO2009081522A1 (ja) | 2007-12-21 | 2008-11-28 | 試験装置および測定装置 |
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JP (1) | JPWO2009081522A1 (ja) |
KR (1) | KR20100103456A (ja) |
TW (1) | TW200938860A (ja) |
WO (1) | WO2009081522A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102540055A (zh) * | 2011-12-22 | 2012-07-04 | 深圳创维数字技术股份有限公司 | 一种检测逻辑电平极限值的方法及装置 |
CN102565679A (zh) * | 2011-12-22 | 2012-07-11 | 深圳创维数字技术股份有限公司 | 一种检测供电电压极限值的方法及装置 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH022954A (ja) * | 1988-06-15 | 1990-01-08 | Advantest Corp | Ic試験装置 |
JPH026274U (ja) * | 1988-06-27 | 1990-01-16 | ||
JPH0553244U (ja) * | 1991-12-13 | 1993-07-13 | 株式会社アドバンテスト | Icテスタの並列接続デバイス電源 |
JPH07209372A (ja) * | 1994-01-21 | 1995-08-11 | Advantest Corp | 電流測定装置及び方法 |
JP2002168902A (ja) * | 2000-12-05 | 2002-06-14 | Advantest Corp | 直流試験装置及びこの試験装置を使用する直流試験方法 |
-
2008
- 2008-11-28 JP JP2009546926A patent/JPWO2009081522A1/ja active Pending
- 2008-11-28 WO PCT/JP2008/003532 patent/WO2009081522A1/ja active Application Filing
- 2008-11-28 KR KR1020107008000A patent/KR20100103456A/ko not_active Application Discontinuation
- 2008-12-17 TW TW97149278A patent/TW200938860A/zh unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH022954A (ja) * | 1988-06-15 | 1990-01-08 | Advantest Corp | Ic試験装置 |
JPH026274U (ja) * | 1988-06-27 | 1990-01-16 | ||
JPH0553244U (ja) * | 1991-12-13 | 1993-07-13 | 株式会社アドバンテスト | Icテスタの並列接続デバイス電源 |
JPH07209372A (ja) * | 1994-01-21 | 1995-08-11 | Advantest Corp | 電流測定装置及び方法 |
JP2002168902A (ja) * | 2000-12-05 | 2002-06-14 | Advantest Corp | 直流試験装置及びこの試験装置を使用する直流試験方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102540055A (zh) * | 2011-12-22 | 2012-07-04 | 深圳创维数字技术股份有限公司 | 一种检测逻辑电平极限值的方法及装置 |
CN102565679A (zh) * | 2011-12-22 | 2012-07-11 | 深圳创维数字技术股份有限公司 | 一种检测供电电压极限值的方法及装置 |
Also Published As
Publication number | Publication date |
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KR20100103456A (ko) | 2010-09-27 |
JPWO2009081522A1 (ja) | 2011-05-06 |
TW200938860A (en) | 2009-09-16 |
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