公开(公告)号：US10310015B2

公开(公告)日：2019-06-04

申请号：US13946083

申请日：2013-07-19

Applicant: Advanced Micro Devices, Inc.

Inventor： Thomas A. Clouqueur ,  Dwight K. Elvey ,  Kamran Zarrineh

IPC: G01R31/28 ,  G01R31/3185

Abstract: An integrated circuit device includes a plurality of flip flops configured into a scan chain. The plurality of flip flops includes at least flip flop of a first type and at least one flip flop of a second type. A method includes generating a first scan clock signal for loading scan data into at least one flip flop of a first type, generating a second scan clock signal and a third scan clock signal for loading the scan data into at least one flip flop of a second type, and loading a test pattern into a scan chain defined by the at least flip flop of the first type and the at least one flip flop of the second type responsive to the first, second, and third scan clock signals.

公开(公告)号：US20150026532A1

公开(公告)日：2015-01-22

申请号：US13946083

申请日：2013-07-19

Applicant: Advanced Micro Devices, Inc.

Inventor： Thomas A. Clouqueur ,  Dwight K. Elvey ,  Kamran Zarrineh

IPC: G01R31/3185

CPC classification number: G01R31/318552 ,  G01R31/318541

Abstract: An integrated circuit device includes a plurality of flip flops configured into a scan chain. The plurality of flip flops includes at least flip flop of a first type and at least one flip flop of a second type. A method includes generating a first scan clock signal for loading scan data into at least one flip flop of a first type, generating a second scan clock signal and a third scan clock signal for loading the scan data into at least one flip flop of a second type, and loading a test pattern into a scan chain defined by the at least flip flop of the first type and the at least one flip flop of the second type responsive to the first, second, and third scan clock signals.

Abstract translation: 集成电路装置包括配置成扫描链的多个触发器。 多个触发器至少包括第一类型的触发器和至少一个第二类触发器。 一种方法包括产生用于将扫描数据加载到第一类型的至少一个触发器中的第一扫描时钟信号，产生第二扫描时钟信号和用于将扫描数据加载到第二扫描时钟信号的至少一个触发器中的第三扫描时钟信号 类型，并且将测试图案加载到由第一类型的至少触发器定义的扫描链中，以及响应于第一，第二和第三扫描时钟信号的第二类型的至少一个触发器。