Test apparatus, adjustment method and recording medium

Details Test apparatus, adjustment method and recording medium Test apparatus, adjustment method and recording medium

2006-12-20

2009-08-11

Trimmings, John P (Department: 2117)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Skew detection correction

C702S108000, C702S124000, C702S125000, C365S201000, C714S025000, C714S707000, C714S709000, C714S715000, C714S718000, C714S719000, C714S724000, C714S731000, C714S735000, C714S738000, C714S744000

Reexamination Certificate

active

07574633

ABSTRACT:
There is provided a test apparatus that tests a device under test including a plurality of data terminals and a clock output terminal, the test apparatus including a plurality of first variable delay circuits that delays a reference clock, a plurality of timing clock generating sections that outputs a timing clock having a phase obtained by shifting a phase of the delayed reference clock by a designated phase shift amount, a timing comparator that acquires a data signal in accordance with the timing clock, a plurality of second variable delay circuits that delays the timing clock, a plurality of phase comparators that outputs a phase shift amount according to a phase difference between a clock signal and the timing clock, a first adjusting section that adjusts a delay amount of the first variable delay circuit so that the timing comparator acquires a data signal based on the timing clock, and a second adjusting section that adjusts a delay amount of the second variable delay circuit so that the timing comparator acquires the data signal based on the clock signal.

REFERENCES:
patent: 7307895 (2007-12-01), Kuhn et al.
patent: 2001/0052097 (2001-12-01), Miura
patent: 2004/0122620 (2004-06-01), Doi et al.
patent: 2005/0149801 (2005-07-01), Oshima
patent: 2001-201532 (2001-07-01), None
patent: 2002-042498 (2002-02-01), None
patent: 2005-285160 (2005-10-01), None
International Search Report issued in International Application No. PCT/JP2007/063654 mailed on Sep. 18, 2007, 10 pages.

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