公开(公告)号：US20240094287A1

公开(公告)日：2024-03-21

申请号：US18229965

申请日：2023-08-03

Applicant: ADVANTEST CORPORATION

Inventor： Edmundo De La Puente ,  Linden Hsu ,  Mei-Mei Su ,  Marilyn Kushnick

IPC: G01R31/317 ,  G01R31/3183

CPC classification number: G01R31/31721 ,  G01R31/318307

Abstract: A tester system includes a test computer system for coordinating and controlling testing of a plurality of devices under test (DUTs) and a hardware interface module coupled to the test computer system and controlled by the test computer system, the hardware interface module operable to apply test input signals to the plurality of DUTs and operable to receive test output signals from the plurality of DUTs. The hardware interface module includes a memory for storing instructions and data, a high performance processor coupled to the memory, the high performance processor operable to perform testing functionality at high speed for application of test signals to the plurality of DUTs, the high performance processor operable to perform the testing functionality under control of instructions and data from the memory and under control from software commands from the test computer system, wherein further the high performance processor is not natively capable of low power mode operation. The test system also includes a low power module coupled to and external to the high performance processor, the low power module capable of operating in at least one low power mode, the high performance processor for directing the low power module to configure the plurality of DUTs into at least one low power mode and further for testing the plurality of DUTs using commands and data in low power. The test system further includes driver hardware for applying the commands and data in low power to the plurality of DUTs which are configured for low power operation during the testing.

公开(公告)号：US12135352B2

公开(公告)日：2024-11-05

申请号：US17219521

申请日：2021-03-31

Applicant: Advantest Corporation

Inventor： Marilyn Kushnick ,  Duane Champoux

IPC: G01R31/317 ,  G06F7/58

Abstract: Presented embodiments facilitate efficient and effective flexible implementation of different types of testing procedures in a test system. Presented embodiments enable efficient and effective random generation of test input information. In one embodiment a method includes accessing a plurality of data values to write to a DUT, generating a plurality of addresses pseudo randomly and assigning the address to a respective one of the data values, wherein assignments of a particular address to different respective ones of the data values are randomly repeatable; and directing writing of the data values to the DUT in accordance with the plurality of addresses that are randomly generated and randomly repeated. The generating a plurality of addresses randomly can include normalization. Generating a plurality of addresses pseudo randomly and assigning the address to a respective one of the data values can include performing a confirmation check. The confirmation check can include checking if the addresses within proper parameters.

公开(公告)号：US20210302496A1

公开(公告)日：2021-09-30

申请号：US17219521

申请日：2021-03-31

Applicant: Advantest Corporation

Inventor： Marilyn Kushnick ,  Duane Champoux

IPC: G01R31/317 ,  G06F7/58

Abstract: Presented embodiments facilitate efficient and effective flexible implementation of different types of testing procedures in a test system. Presented embodiments enable efficient and effective random generation of test input information. In one embodiment a method includes accessing a plurality of data values to write to a DUT, generating a plurality of addresses pseudo randomly and assigning the address to a respective one of the data values, wherein assignments of a particular address to different respective ones of the data values are randomly repeatable; and directing writing of the data values to the DUT in accordance with the plurality of addresses that are randomly generated and randomly repeated. The generating a plurality of addresses randomly can include normalization. Generating a plurality of addresses pseudo randomly and assigning the address to a respective one of the data values can include performing a confirmation check. The confirmation check can include checking if the addresses within proper parameters.