Patent ID: 7906981
Filing Date: 2011-03-15
Classification: G01R

Abstract:
1. A test apparatus for testing at least one device under test, comprising: a plurality of test sections that test the at least one device under test via a plurality of terminals; and a first synchronization section and a second synchronization section that, for each of a plurality of domains that respectively include one or more of the plurality of test sections, synchronize the one or more test sections included in the domain, wherein each of the first synchronization section and the second synchronization section includes: a local collection section that collects, for each domain, synchronization requests from test sections from among the plurality of test sections connected to the corresponding synchronization section; an exchange section that exchanges, for a discrete domain of the plurality of domains that includes test sections connected to the first synchronization section and test sections connected to the second synchronization section, synchronization requests collected in the corresponding synchronization section with synchronization requests collected in the other synchronization section; a global collection section that collects, for the discrete domain, the synchronization requests collected in the corresponding synchronization section and the synchronization requests collected in the other synchronization section; and a distribution section that distributes, to each of the test sections connected to the corresponding synchronization section, synchronization requests collected for a domain including the test section.