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Low area FSM-based memory BIST for synchronous SRAM

机译:基于FSM的低面积存储器BIST,用于同步SRAM

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As the memory enters submicron technology, new test algorithm that will be able to give a better fault coverage such as to detect all intra-word coupling fault (CF) has been widely developed. In order to implement this algorithm to the memory, test technique such as BIST is utilized. Common types of memory built-in-self test (MBIST); microcode-based MBIST and FSM-based MBIST. The popular approach of designing various kind of MBIST architectures are either by targeting to reach specific testing requirement such as on full speed and at speed or by considering the cost-constraint and area overhead such low-cost or low-area design. In this paper, FSM-based BIST is designed to be able detecting all intra-word coupling fault (CF) in a synchronous SRAM under low-area constraint of test requirement.
机译:随着存储器进入亚微米技术,新的测试算法将能够提供更好的故障覆盖率,例如检测所有字内耦合故障(CF)。为了将该算法实现到存储器,利用了诸如BIST的测试技术。常见的内存内置自我测试类型(MBIST);基于微码的MBIST和基于FSM的MBIST。设计各种MBIST架构的流行方法是针对特定的测试要求(例如全速和全速),或者考虑成本约束和面积开销(例如低成本或小面积设计)。在本文中,基于FSM的BIST被设计为能够在测试需求的小范围约束下检测同步SRAM中的所有字内耦合故障(CF)。

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