Teradyne

About: Teradyne is a company organization based out in Boston, Massachusetts, United States. It is known for research contribution in the topics: Signal & Automatic test equipment. The organization has 828 authors who have published 999 publications receiving 15695 citations.

Redundancy analyzer for automatic memory tester

Abstract: Memory test apparatus including a redundancy analyzer with a catch RAM transfer interface circuit receiving fault information for a plurality of regions of a memory under test simultaneously in parallel and transmitting the information for each region to a respective one of a plurality of region modules that each has a region input circuit, a region fault RAM, and a microprocessor connected to have access to the region fault RAM, the region fault RAMs storing fault addresses identifying the locations of faults in the memory under test.

Configurable automatic-test-equipment system

Abstract: A method and system for measuring a device under test includes connecting a first test instrument and a second test instrument to a programmable logic device. The programmable logic device is configured to comply with interface specifications of the first test instrument. The second test instrument has interface specifications that are different from the interface specifications of the first test instrument. The programmable logic device is configured to comply with the interface specifications of the second test instrument.

Self retained pressure connection

Abstract: A self retained pressure connector is provided that includes a spring action contact surface at a first end and a compliant interference fit contact surface at a second end. The compliant interference fit contact is supported within a conductive hole in a printed circuit board and the spring action surface contact provides an electrical connection to a conductive element disposed on a second surface. The conductive element may, in alternate embodiments, be a surface pad on the second surface or a second self retained pressure connector rotated ninety degrees from the first self retained pressure connector. A differential self retained pressure connection is also described in which a dielectric material is used to electrically isolate a first half of the connector from a second half of the connector.

Timing generator with edge generators, utilizing programmable delays, providing synchronized timing signals at non-integer multiples of a clock signal

Abstract: A system for providing a plurality of synchronous timing signals having period values that are not even multiples of the clock period including a plurality of local edge generators receiving the clock signals, each local generator including local programmable means to count clock signals and provide local outputs upon receiving predetermined clock signals and local programmable delay means for providing a timing signal after a delay interval following each local output, the resolution of the local delay means being greater than that of the clock

Easy to program automatic test equipment

Abstract: The invention is directed to techniques for providing a test procedure for testing a device using automatic test equipment (ATE). An ATE system includes memory having a test application stored therein, a test interface to connect to the device, and a processor coupled to the memory and the test interface. The processor is configured to operate in accordance with the test application to (i) provide a series of instructions based on a test procedure defining a device testing task, and (ii) control the test interface based on the provided series of instructions in order to test the device. The test procedure includes multiple test elements. Each test element defines instructions and programmable input variables that direct the processor to perform a particular test operation of the device testing task. The user of the ATE system combines test elements when creating the test procedure rather than write code from scratch, or modify code of prewritten templates. Accordingly, the user does not need to possess knowledge of a programming language or low-level ATE component details.