WO2007099917A1 - 測定装置、測定方法、試験装置、試験方法、及び電子デバイス - Google Patents
測定装置、測定方法、試験装置、試験方法、及び電子デバイス Download PDFInfo
- Publication number
- WO2007099917A1 WO2007099917A1 PCT/JP2007/053547 JP2007053547W WO2007099917A1 WO 2007099917 A1 WO2007099917 A1 WO 2007099917A1 JP 2007053547 W JP2007053547 W JP 2007053547W WO 2007099917 A1 WO2007099917 A1 WO 2007099917A1
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- WO
- WIPO (PCT)
- Prior art keywords
- signal
- under measurement
- strobe
- signal under
- comparator
- Prior art date
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/26—Measuring noise figure; Measuring signal-to-noise ratio
-
- 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
- G01R31/317—Testing of digital circuits
- G01R31/31708—Analysis of signal quality
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C29/00—Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
- G11C29/04—Detection or location of defective memory elements, e.g. cell constructio details, timing of test signals
- G11C29/50—Marginal testing, e.g. race, voltage or current testing
- G11C29/50012—Marginal testing, e.g. race, voltage or current testing of timing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C29/00—Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
- G11C29/56—External testing equipment for static stores, e.g. automatic test equipment [ATE]; Interfaces therefor
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C29/00—Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
- G11C29/56—External testing equipment for static stores, e.g. automatic test equipment [ATE]; Interfaces therefor
- G11C29/56008—Error analysis, representation of errors
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C29/00—Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
- G11C29/04—Detection or location of defective memory elements, e.g. cell constructio details, timing of test signals
- G11C29/50—Marginal testing, e.g. race, voltage or current testing
- G11C2029/5002—Characteristic
Definitions
- a test for measuring jitter of a signal under measurement output from the electronic device can be considered.
- the jitter of the signal under measurement is measured by inputting the signal under measurement into a time interval analyzer, oscilloscope, or the like.
- the jitter can be calculated by measuring the phase error of the edge of the signal under measurement, for example.
- the function test apparatus sets the voltage value of the signal under measurement to the set timing. Compare with the threshold voltage. Therefore, by gradually shifting the timing, it is possible to detect the transition timing of the data pattern of the signal under measurement and detect the edge of the signal under measurement. For this reason, it is possible to measure jitter using a function test device using this function.
- a test apparatus for testing a device under test, the measurement apparatus measuring the jitter of a signal under measurement output from the device under test, and the jitter measured by the measurement apparatus. And a jitter determination unit that determines whether the device under test is good or bad, and the measuring apparatus sequentially compares the voltage value of the signal under measurement with the reference voltage value provided at the timing of the strobe signal given sequentially. And a strobe timing generator that sequentially generates strobe signals arranged at approximately equal time intervals, a capture memory that stores the comparison result of the comparator, and a jitter of the signal under measurement based on the comparison result stored in the capture memory A test apparatus having a digital signal processing unit is provided.
- a test method for testing a device under test wherein a measurement stage for measuring jitter of a signal under measurement output from the device under test is measured, and measurement is performed during the measurement stage.
- the strobe timing generation stage that sequentially generates strobe signals arranged at approximately equal time intervals, the storage stage that stores the comparator comparison results, and the comparison results that are stored in the captcha memory And a digital signal processing stage for calculating jitter of the signal under measurement.
- an electronic device that outputs a signal under measurement includes an operation circuit that generates the signal under measurement, and a measurement device that measures the signal under measurement.
- a measuring apparatus for measuring a signal under measurement, wherein the voltage value of the first signal under measurement and the reference voltage value provided at the timing of the strobe signal given sequentially.
- the first comparator that sequentially compares the voltage value of the second signal under measurement and the given reference voltage value with the second comparator that sequentially compares the first comparator with the first comparator substantially simultaneously.
- a strobe timing generator for sequentially generating the strobe signals arranged in the circuit, a capture memory for storing the comparison result of the comparator, and each of the first and second signals under measurement based on the comparison result stored in the capture memory.
- Digital signal processing that calculates instantaneous phase and calculates a deterministic skew between the first signal under measurement and the second signal under measurement based on each instantaneous phase. It provides a measure equipment and a part.
- a measuring apparatus for measuring a signal under measurement, wherein the voltage value of the first signal under measurement and the reference voltage provided at the timing of the strobe signal given sequentially.
- a first comparator that sequentially compares values with each other, a voltage value of the second signal under measurement, and a given reference voltage value that are sequentially compared with the first comparator substantially simultaneously with the first comparator, and approximately equal time
- a strobe timing generator that sequentially generates strobe signals arranged at intervals, a capture memory that stores the comparison result of the comparator, and each of the first and second signals under measurement based on the comparison result stored in the capture memory.
- FIG. 4 is a diagram showing an example of the operation of the measuring apparatus 10 when the comparator 20 shown in FIG. 3 (A) is used.
- FIG. 7 shows a comparison between the actual jitter value measured by the conventional jitter measurement method and the actual jitter value measured by the test apparatus 100.
- FIG. 8 (A) and FIG. 8 (B) are diagrams showing a configuration example of the band limiting unit 62.
- FIG. 10 is a diagram showing another example of the configuration of the measuring apparatus 10.
- FIG. 12 is a diagram showing another example of the configuration of the measuring device 10.
- FIG. 17 is a diagram showing another example of the configuration of the test apparatus 100.
- FIG. 26 shows examples of the instantaneous phase ⁇ (t), linear phase, and instantaneous phase noise ⁇ (t) of the signal under measurement explained in FIG.
- the determination unit 70 determines pass / fail of the device under test 200 based on the jitter of the signal under measurement measured by the measuring apparatus 10. For example, the determination unit 70 may determine the quality of the device under test 200 based on whether or not the timing jitter amount of the signal under measurement is greater than or equal to a predetermined reference value. The reference value may be determined according to required specifications of the device under test 200.
- the digital signal processing unit 60 calculates the jitter of the signal under measurement based on the comparison result stored in the captcha memory 40.
- the digital signal processing unit 60 is, for example, shown in FIG. 5
- the jitter of the signal under measurement may be calculated by the method described later in connection with (B). Further, the digital signal processing unit 60 may calculate the jitter of the signal under measurement by another known technique.
- the digital signal conversion unit 50 converts the comparison results High and Low into, for example, 1 and ⁇ 1 digital values, respectively.
- the instantaneous phase estimating unit 66 generates an instantaneous phase signal indicating the instantaneous phase of the digital signal based on the analysis signal output from the band limiting unit 62.
- the instantaneous phase of the digital signal can be obtained by the arc tangent of the ratio of the real part to the imaginary part of the analysis signal.
- FIG. 7 shows a comparison between the actual measured jitter value by the conventional jitter measurement method and the actual measured jitter value by the test apparatus 100.
- the signal under measurement is converted into a digital signal by an 8-bit ADC, and jitter is measured in the same manner as the digital signal processing unit 60.
- the test apparatus 100 measures jitter using a comparator 20 that outputs a ternary digital signal.
- the test apparatus 100 has a simpler configuration than the conventional method, and the difference from the conventional method is 4% for both the measured signal with less noise and the measured signal with more noise. The following measurements can be made.
- the measurement apparatus 10 in this example removes the carrier frequency component of the signal under measurement, extracts the noise component to be measured, and performs processing, so that the noise component can be accurately measured. Can do.
- the filter 74 preferably also removes harmonic components of the carrier frequency component.
- the strobe timing generator 30 generates a strobe signal input to the comparator 20 based on the phase of the trigger signal synchronized with the signal under measurement. For example, the strobe timing generator 30 starts outputting the strobe signal A after a predetermined offset time has elapsed with reference to a trigger signal having a predetermined phase with respect to the signal under measurement A.
- the strobe timing generator 30 similarly uses the trigger signal as a reference, and after a predetermined offset time has elapsed, Start output.
- the strobe signal B is arranged at the same time interval as the strobe signal A.
- the phase of the trigger signal serving as the reference of the signal under measurement A and the phase of the trigger signal serving as the reference of the signal under measurement B are substantially the same.
- the same interval is used.
- the offset of the strobe signal A with respect to the trigger signal and the offset of the strobe signal B with respect to the trigger signal may be different by about half of the strobe interval. That is, when strobe signal A and strobe signal B are superimposed, strobe signal A and strobe signal B are alternately arranged at substantially equal intervals.
- the strobe timing generator 30 may include, for example, an oscillation circuit that generates a strobe signal in which strobes are arranged at predetermined time intervals, and a delay circuit that delays the output of the oscillation circuit.
- the oscillation circuit sequentially generates a strobe signal A and a strobe signal B. Then, the delay circuit sequentially delays each strobe signal in accordance with the offset that each strobe signal should have.
- FIG. 13 is a diagram illustrating another example of the configuration of the comparator 20.
- the measurement apparatus 10 in this example has two comparators (20-1, 20-2, hereinafter collectively referred to as 20).
- Each comparator 20 is the same as the comparator 20 described in FIG.
- the same first reference voltage VOH and second reference voltage VOL are applied to each comparator 20.
- each signal to be measured is branched and input to each comparator 20.
- the measuring apparatus 10 may further include an input unit 90 that divides the signal under measurement and inputs the signal under measurement to each comparator 20 in parallel.
- the strobe timing generator 30 inputs strobe signals having different phases to the respective comparators. For example, the strobe signal A shown in FIG.
- FIG. 14 is a diagram illustrating an example of operations of the comparator 20 and the strobe timing generator 30 illustrated in FIG. As described above, the strobe timing generator 30 generates the strobe signals A (l, 2, 3,... And the strobe signal B (A, B, C,%) And inputs them to the respective comparators 20.
- the power described in the example having two comparators 20 may be provided in another example. In this case, it is possible to perform measurement at a higher frequency by making the offset of the strobe signal input to each comparator 20 different.
- FIG. 15 and FIG. 16 are flowcharts showing an example of a method for correcting the sampling timing error.
- the correction may be performed by the digital signal processing unit 60.
- the ideal phase difference calculation step S300 the ideal value of the phase difference of the sampling timing of each data series sampled according to each strobe signal is calculated.
- the phase difference is given by 2 ⁇ (AtZT), where At is the ideal value of the offset difference of each strobe signal and T is the average period of the signal under measurement.
- a comparison spectrum calculation step S304 a data series different from the reference data series is selected, and the spectrum of the data series is calculated.
- the spectrum can be obtained by fast Fourier transform of the data series.
- a cross spectrum between the spectrum of the reference data series and the spectrum of the comparison target data series is calculated.
- the cross spectrum includes the complex conjugate spectrum of the reference data series spectrum and the comparison target data. It can be obtained by complex multiplication with the data series spectrum.
- phase difference calculation step S306 the phase difference between the reference data series and the comparison target data series is calculated.
- the phase difference can be calculated based on the cross spectrum calculated in S306. That is, it indicates the phase difference between the phase component force reference data series of the cross spectrum and the comparison target data series.
- phase difference is calculated using the cross spectrum of the two data series, but the phase difference may be calculated by other methods.
- the phase difference may be calculated based on the cross-correlation of the spectrum of two data series.
- FIG. 16 is a flowchart showing an example of processing in the error correction stage S312.
- the timing error calculation step S314 the sampling timing error of the comparison target data series is calculated based on the phase difference between the reference data series and the comparison target data series.
- the timing error can be calculated based on the ideal phase difference.
- timing errors it is determined whether or not timing errors have been corrected for all data series. If there is a data series for which timing error correction has not been performed, the processing from S314 to S318 is repeated for the data series. Time for all data series When the timing error is corrected, a data sequence in which the timing error is corrected is generated in the data sequence generation step S322. For example, it is possible to obtain a data sequence in which the timing error is corrected by performing inverse fast Fourier transform on the spectrum of each data sequence in which the timing error is corrected.
- test apparatus 100 in this example is further provided with a pattern generator 65 and a pattern comparison unit 55 in addition to the configuration of the test apparatus 100 described with reference to FIGS.
- the determination unit 70 includes a logic determination unit 75 and a jitter determination unit 77.
- the other components have the same or similar functions and configurations as the components described with the same reference numerals in FIGS.
- the pattern generator 65 inputs a test signal having a predetermined data pattern to the device under test 200 when performing a function test of the device under test.
- the comparator 20 detects the data pattern of the signal under measurement by comparing the voltage value of the signal under measurement output from the device under test 200 with a predetermined reference voltage at the timing of the given strobe signal.
- the strobe timing generator 30 when performing a jitter test, the strobe timing generator 30 is connected to the test level. A strobe signal that is independent of the first signal may be generated.
- the strobe timing generator 30 includes, for example, an oscillation circuit that generates a strobe signal.
- the strobe timing generator 30 controls the operation of the oscillation circuit according to a test rate. The operation of the oscillation circuit need not be controlled by the test rate.
- the strobe timing generator 30 may include a first oscillation circuit that generates a strobe signal when performing a function test, and a second oscillation circuit that generates a strobe signal when performing a jitter test. In this case, the operation of the first oscillation circuit is controlled by the test rate, and the second oscillation circuit operates independently of the test rate.
- the pattern comparison unit 55 compares whether the data pattern of the signal under measurement determined by the comparison result stored in the capture memory 40 matches the predetermined expected value pattern. To do.
- the expected value pattern should be generated by the pattern generator 65 based on the data pattern of the test signal.
- the logic determination unit 75 determines pass / fail of the device under test 200 based on the comparison result in the pattern comparison unit 55.
- the digital signal conversion unit 50, the digital signal processing unit, and the determination unit 70 may be a computer in which software is incorporated.
- the test apparatus 100 can also perform a jitter test without adding hardware using a conventional test apparatus for function tests. Therefore, the device under test 200 can be tested at a low cost.
- FIG. 18 is a diagram showing an example of the configuration of the electronic device 400 according to the embodiment of the present invention.
- the electronic device 400 includes an operation circuit 410 that generates a signal under measurement and the measurement apparatus 10.
- the electronic device 400 may include a configuration of the operating circuit 410 and a part of the measuring apparatus 10 inside a package such as resin or ceramic.
- the operation circuit 410 operates in accordance with, for example, a signal input from the outside, and outputs a signal under measurement to the outside.
- the measuring apparatus 10 measures the signal under measurement output from the operation circuit 410.
- the measuring apparatus 10 may have the same configuration as the measuring apparatus 10 described in relation to FIGS.
- the measurement apparatus 10 may include a comparator 20 and a captcha memory 40.
- the comparator 20 has a strobe signal described in connection with FIGS. Is given.
- the strobe signal may be generated inside the electronic device 400 provided by an external device.
- the electronic device 400 When generating a strobe signal inside the electronic device 400, the electronic device 400 preferably further includes a strobe timing generator 30. As described with reference to FIGS. 1 to 16, the capture memory 40 stores measurement results obtained by measuring the signal under measurement at a high frequency equivalently.
- the jitter of the electronic device 400 can be accurately calculated by reading the comparison result stored in the captcha memory 40.
- the external device can reduce the cost of the device because it is not necessary to measure the signal under measurement at high speed.
- the strobe timing generator 30 in this example may generate a strobe signal with a period that does not satisfy the Nyquist theorem for the signal under measurement. That is, the stove timing generator 30 in this example undersamples the signal under measurement. For example, the stove timing generator 30 generates a strobe signal with a period greater than half the period of the signal under measurement. In this example, as shown in FIG. 19, the strobe timing generator 30 generates strobe signals at equal intervals with a period longer than the period of the signal under measurement.
- the digital signal processing unit 60 extracts a frequency component near the carrier frequency of the signal under measurement.
- FIG. 20 (B) shows an example of the extracted frequency component.
- Figure 20 (B) shows an example of the frequency components extracted when the carrier frequency of the signal under measurement is about 16 MHz and the cutoff frequency is about 15 MHz and about 5 MHz.
- Figure 23 shows the observed bandwidth of the jitter value calculated for each period difference value ( ⁇ 1). It is a figure which illustrates dependency. In this example, when the effective value of the jitter amplitude included in the signal under measurement is 2 ps, the jitter value calculated for the difference value ( ⁇ ) of each period is shown. The horizontal axis in FIG. 23 corresponds to the cutoff frequency shown in FIG. 20 (B).
- the strobe timing generator 30 may set the period of the strobe signal so that the difference value ( ⁇ ) of the period becomes smaller. For example, when the strobe timing generator 30 can select a plurality of types of cycles as the cycle of the strobe signal, the strobe timing generator 30 may select a cycle in which the difference value ( ⁇ ) of the cycle is smaller. .
- the difference between the period of the strobe signal and the period of the signal under measurement is a value corresponding to the amplitude of the jitter to be measured or the time resolution to calculate the jitter.
- the period of the strobe signal may be set.
- the strobe timing generator 30 is given the amplitude value of the jitter to be measured or the time resolution value of the jitter to be calculated, and the difference between the period of the strobe signal and the period of the signal under measurement is the effective value of the jitter.
- the strobe signal may be set sequentially so that it is three times smaller than or less than the time resolution value.
- the jitter value to be measured may be the peak-to-peak value of timing jitter.
- the strobe timing generator 30 is preferably provided with the value of the period of the signal under measurement.
- the strobe timing generation unit 30 selects a timing set having the smallest period difference value ⁇ among these timing sets, and the period difference value ⁇ is 2 to 2 of the jitter value to be measured. A timing set smaller than 3 times may be selected.
- FIG. 26 shows an example of the instantaneous phase ⁇ (t), linear phase, and instantaneous phase noise ⁇ (t) of the signal under measurement described in FIG.
- the upper figure of Fig. 26 shows the instantaneous phase ⁇ (t) and the linear phase 2 ⁇ ⁇ t + ⁇ of the signal under measurement, and the lower figure shows the instantaneous phase noise ⁇ (t) of the signal under measurement.
- the deterministic skew is the difference between the electrical lengths of the two signal propagation paths. Calculate ( ⁇ (t) I- ⁇ (t) I) / (2 ⁇ ⁇ ).
- the test apparatus 100 includes two comparators 20 in parallel. Then, signals are simultaneously input to these comparators 20. Also, the same strobe signal is given to these comparators 20. That is, the test apparatus 100 simultaneously undersamples two signals input to the comparator 20.
- the difference between the obtained values indicates the definite skew.
- Such processing may be performed by the digital signal converter 50 and the digital signal processor 60.
- the test apparatus 100 may have two captive memories 40 corresponding to the two comparators 20.
- the digital signal conversion unit 50 receives data from the two captive memories 40 and calculates the above-described fixed skew and irregular skew.
- a jitter test of a device under test can be performed at low cost.
- timing noise can be measured separately from amplitude noise, timing jitter can be measured accurately.
- measurement can be performed at a speed higher than the maximum frequency of the strobe signal that can be generated by the strobe timing generator.
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- General Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Tests Of Electronic Circuits (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
Description
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Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008502776A JP5066073B2 (ja) | 2006-02-27 | 2007-02-26 | 測定装置、測定方法、試験装置、試験方法、及び電子デバイス |
DE112007000507T DE112007000507T5 (de) | 2006-02-27 | 2007-02-26 | Messvorrichtung, Messverfahren, Prüfvorrichtung, Prüfverfahren und elektronische Vorrichtung |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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US11/362,536 | 2006-02-27 | ||
US11/362,536 US7398169B2 (en) | 2006-02-27 | 2006-02-27 | Measuring apparatus, measuring method, testing apparatus, testing method, and electronics device |
US11/550,811 US7421355B2 (en) | 2006-02-27 | 2006-10-19 | Measuring apparatus, measuring method, testing apparatus, testing method, and electronic device |
US11/550,811 | 2006-10-19 |
Publications (1)
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WO2007099917A1 true WO2007099917A1 (ja) | 2007-09-07 |
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PCT/JP2007/053547 WO2007099917A1 (ja) | 2006-02-27 | 2007-02-26 | 測定装置、測定方法、試験装置、試験方法、及び電子デバイス |
Country Status (5)
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US (1) | US7421355B2 (ja) |
JP (1) | JP5066073B2 (ja) |
DE (1) | DE112007000507T5 (ja) |
TW (1) | TW200736639A (ja) |
WO (1) | WO2007099917A1 (ja) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7349818B2 (en) * | 2005-11-10 | 2008-03-25 | Teradyne, Inc. | Determining frequency components of jitter |
US7421355B2 (en) * | 2006-02-27 | 2008-09-02 | Advantest Corporation | Measuring apparatus, measuring method, testing apparatus, testing method, and electronic device |
US7804921B2 (en) * | 2006-05-30 | 2010-09-28 | Fujitsu Limited | System and method for decoupling multiple control loops |
US7783452B2 (en) * | 2007-03-08 | 2010-08-24 | Advantest Corporation | Signal measurement apparatus and test apparatus |
US7797121B2 (en) * | 2007-06-07 | 2010-09-14 | Advantest Corporation | Test apparatus, and device for calibration |
US7945403B2 (en) * | 2008-05-08 | 2011-05-17 | Advantest Corporation | Signal measurement apparatus, signal measurement method, recording media and test apparatus |
US8185336B2 (en) * | 2008-10-30 | 2012-05-22 | Advantest Corporation | Test apparatus, test method, program, and recording medium reducing the influence of variations |
KR101221080B1 (ko) * | 2008-11-19 | 2013-01-11 | 가부시키가이샤 어드밴티스트 | 시험 장치, 시험 방법, 및 프로그램 |
US8312327B2 (en) * | 2009-04-24 | 2012-11-13 | Advantest Corporation | Correcting apparatus, PDF measurement apparatus, jitter measurement apparatus, jitter separation apparatus, electric device, correcting method, program, and recording medium |
US10628065B1 (en) * | 2018-06-11 | 2020-04-21 | Xilinx, Inc. | Edge detection for memory controller |
Citations (5)
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JPH10288653A (ja) * | 1997-04-15 | 1998-10-27 | Advantest Corp | ジッタ測定方法及び半導体試験装置 |
WO2000046606A1 (fr) * | 1999-02-08 | 2000-08-10 | Advantest Corporation | Dispositif et procede de mesure de gigue |
JP2001289892A (ja) * | 2000-01-31 | 2001-10-19 | Advantest Corp | ジッタ測定装置及びその方法 |
JP2004125552A (ja) * | 2002-10-01 | 2004-04-22 | Advantest Corp | ジッタ測定装置、及び試験装置 |
JP2005189093A (ja) * | 2003-12-25 | 2005-07-14 | Advantest Corp | 試験装置 |
Family Cites Families (3)
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JP2004093345A (ja) | 2002-08-30 | 2004-03-25 | Renesas Technology Corp | ジッタ測定回路 |
US7421355B2 (en) * | 2006-02-27 | 2008-09-02 | Advantest Corporation | Measuring apparatus, measuring method, testing apparatus, testing method, and electronic device |
US7398169B2 (en) * | 2006-02-27 | 2008-07-08 | Advantest Corporation | Measuring apparatus, measuring method, testing apparatus, testing method, and electronics device |
-
2006
- 2006-10-19 US US11/550,811 patent/US7421355B2/en active Active
-
2007
- 2007-02-26 DE DE112007000507T patent/DE112007000507T5/de not_active Withdrawn
- 2007-02-26 JP JP2008502776A patent/JP5066073B2/ja not_active Expired - Fee Related
- 2007-02-26 WO PCT/JP2007/053547 patent/WO2007099917A1/ja active Application Filing
- 2007-02-27 TW TW096106767A patent/TW200736639A/zh unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH10288653A (ja) * | 1997-04-15 | 1998-10-27 | Advantest Corp | ジッタ測定方法及び半導体試験装置 |
WO2000046606A1 (fr) * | 1999-02-08 | 2000-08-10 | Advantest Corporation | Dispositif et procede de mesure de gigue |
JP2001289892A (ja) * | 2000-01-31 | 2001-10-19 | Advantest Corp | ジッタ測定装置及びその方法 |
JP2004125552A (ja) * | 2002-10-01 | 2004-04-22 | Advantest Corp | ジッタ測定装置、及び試験装置 |
JP2005189093A (ja) * | 2003-12-25 | 2005-07-14 | Advantest Corp | 試験装置 |
Also Published As
Publication number | Publication date |
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JPWO2007099917A1 (ja) | 2009-07-16 |
TW200736639A (en) | 2007-10-01 |
US7421355B2 (en) | 2008-09-02 |
US20070260947A1 (en) | 2007-11-08 |
JP5066073B2 (ja) | 2012-11-07 |
DE112007000507T5 (de) | 2009-01-08 |
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