Testing apparatus and testing method for an integrated circuit, and integrated circuit
    4.
    发明授权
    Testing apparatus and testing method for an integrated circuit, and integrated circuit 有权
    一种集成电路的测试仪器和测试方法,以及集成电路

    公开(公告)号:US07178078B2

    公开(公告)日:2007-02-13

    申请号:US10000089

    申请日:2001-12-04

    IPC分类号: G01R31/28

    摘要: An apparatus enables a high quality test to be carried out within a short time, without forcing a severe design limitation on the designer and without an expensive tester. The apparatus includes a pattern generator built in an integrated circuit to generate pseudo random patterns as test patterns. A plurality of shift registers are configured with sequential circuit elements inside said integrated circuit. An automatic test pattern generating unit generates ATPG patterns. A pattern modifier modifies a portion, to which a predetermined value is required to be set in order to detect a fault, in said pseudo random patterns generated by said pattern generator, on a basis of said ATPG patterns, and inputs said modified pseudo random patterns to said shift registers.

    摘要翻译: 一种设备能够在短时间内进行高质量测试,而不会对设计人员造成严重的设计限制,而无需昂贵的测试仪。 该装置包括内置在集成电路中的图形发生器,以产生伪随机图案作为测试图案。 多个移位寄存器在所述集成电路内配置有顺序电路元件。 自动测试模式生成单元生成ATPG模式。 模式修改器基于所述ATPG模式修改在由所述模式生成器生成的所述伪随机模式中需要设置预定值以便检测故障的部分,并且输入所述修改的伪随机模式 到移位寄存器。