发明名称 Semiconductor integrated circuit device equipped with scan-pass type test circuit
摘要 A semiconductor integrated circuit device is disclosed, which includes a test circuit for facilitating A.C. characteristic test thereof. This test circuit includes a delay circuit, a first register for temporarily storing test data to be supplied to the delay circuit and a second register for temporarily storing data derived from the delay circuit. The delay circuit has a delay time approximately equal to a data propagation delay time on a critical path formed in the integrated circuit device. The device also includes a scan pass type test circuit for a function test thereof. The scan-in terminal is used to supply the test data to the first register and the scan-out terminal is used to receive data from the second register.
申请公布号 US4916388(A) 申请公布日期 1990.04.10
申请号 US19890332006 申请日期 1989.03.31
申请人 NEC CORPORATION 发明人 SANO, TOSHI
分类号 G01R31/28;G01R31/3185;H01L21/66 主分类号 G01R31/28
代理机构 代理人
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