Proceedings of International Workshop on Defect and Fault Tolerance in VLSI最新文献

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Critical area extraction of extra material soft faults 附加物质软断层临界区提取
Proceedings of International Workshop on Defect and Fault Tolerance in VLSI Pub Date : 1995-11-13 DOI: 10.1109/DFTVS.1995.476937
G. A. Allan, A. Walton
{"title":"Critical area extraction of extra material soft faults","authors":"G. A. Allan, A. Walton","doi":"10.1109/DFTVS.1995.476937","DOIUrl":"https://doi.org/10.1109/DFTVS.1995.476937","url":null,"abstract":"A method of extracting the extra material critical area of soft faults from an integrated circuit layout is presented. This has been implemented in the EYE tool allowing efficient extraction of the critical area from arbitrary mask layout. Results comparing defect sensitivity of a routing network modified to reduce defect sensitivity are reported. The application to defect related reliability is explored.","PeriodicalId":362167,"journal":{"name":"Proceedings of International Workshop on Defect and Fault Tolerance in VLSI","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131944060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Using defect density modelling to drive the optimisation of circuit layout, maximising yield 使用缺陷密度模型来驱动电路布局的优化,最大限度地提高产量
Proceedings of International Workshop on Defect and Fault Tolerance in VLSI Pub Date : 1995-11-13 DOI: 10.1109/DFTVS.1995.476949
M. Baxter, D. Muir
{"title":"Using defect density modelling to drive the optimisation of circuit layout, maximising yield","authors":"M. Baxter, D. Muir","doi":"10.1109/DFTVS.1995.476949","DOIUrl":"https://doi.org/10.1109/DFTVS.1995.476949","url":null,"abstract":"With integrated circuit [IC] market requirements driving the increase in diversity of product families and technologies, modelling of defect density within wafer fabrication is increasing in complexity. The exponential growth in the number of applications of the IC has meant that the requirement of each wafer fabrication facility has moved from running single volume products to being able to cope with running up to hundreds of different products at one time. Where it is possible to retain one volume product per wafer fabrication site, simpler defect density modelling may be representative models or indicators of defect density. When multiple process flows, product families and technologies are manufactured at one time, using one model was found to be unviable. By developing wafer fabrication site specific models, the effects of inline defectivity and design layout were found to consistently relate to yield. Product family variations also showed relationships with yield, where memory size, complexity and module choice could be optimised to maximise yield of a new product.","PeriodicalId":362167,"journal":{"name":"Proceedings of International Workshop on Defect and Fault Tolerance in VLSI","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122493364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Characterization and analysis of errors in circuit test 电路测试误差的表征与分析
Proceedings of International Workshop on Defect and Fault Tolerance in VLSI Pub Date : 1995-11-13 DOI: 10.1109/DFTVS.1995.476960
T. Ziaja, E. Swartzlander
{"title":"Characterization and analysis of errors in circuit test","authors":"T. Ziaja, E. Swartzlander","doi":"10.1109/DFTVS.1995.476960","DOIUrl":"https://doi.org/10.1109/DFTVS.1995.476960","url":null,"abstract":"Characteristic equations for a general testing model are developed which include the effect of errors in testing. Physical defects are related to logical faults in a circuit and, in contrast to previous works, a requirement that a defect causes at least one fault is modelled. The concept of pseudo-faults is introduced and applied to the general testing model to characterize Type I error which occurs when a good circuit fails the test. Pseudo-faults are seen to affect circuits randomly and occur independently of other defects due to the interaction between the test and the circuit, affecting both defective and good circuits. Data taken from an electronic circuit board assembly and test site is presented in support of the general testing model.","PeriodicalId":362167,"journal":{"name":"Proceedings of International Workshop on Defect and Fault Tolerance in VLSI","volume":"286 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124561576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Yield projection from defect monitors: the influence of gross defects [BiCMOS process] 缺陷监视器的良率预测:总体缺陷的影响[BiCMOS工艺]
Proceedings of International Workshop on Defect and Fault Tolerance in VLSI Pub Date : 1995-11-13 DOI: 10.1109/DFTVS.1995.476947
Neil Harrison
{"title":"Yield projection from defect monitors: the influence of gross defects [BiCMOS process]","authors":"Neil Harrison","doi":"10.1109/DFTVS.1995.476947","DOIUrl":"https://doi.org/10.1109/DFTVS.1995.476947","url":null,"abstract":"Accurate yield projection requires an appreciation of the role of gross or area defects. Yield projection from defect monitors can only be successful if the presence of gross defects is handled correctly. This paper presents a technique for the identification of such defects and quantifies the effect on projected yield of varying the criterion for distinguishing gross defects from a cluster of point defects.","PeriodicalId":362167,"journal":{"name":"Proceedings of International Workshop on Defect and Fault Tolerance in VLSI","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127181746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Accurate yield estimation of circuits with redundancy 具有冗余电路的精确良率估计
Proceedings of International Workshop on Defect and Fault Tolerance in VLSI Pub Date : 1995-11-13 DOI: 10.1109/DFTVS.1995.476948
D. Gaitonde, D. Walker, W. Maly
{"title":"Accurate yield estimation of circuits with redundancy","authors":"D. Gaitonde, D. Walker, W. Maly","doi":"10.1109/DFTVS.1995.476948","DOIUrl":"https://doi.org/10.1109/DFTVS.1995.476948","url":null,"abstract":"Yield concerns owing to increasing die sizes have prompted designers to include redundant elements in the design. In this paper we present a technique for accurately estimating the yield of designs that employ redundancy. We show that conventional techniques that do not take into account the actual chip layout and defect statistics could result in substantial error in the yield estimate. We show that the optimum amount and nature of redundancy depends heavily on the nature of the the circuit, the chip layout and defect statistics.","PeriodicalId":362167,"journal":{"name":"Proceedings of International Workshop on Defect and Fault Tolerance in VLSI","volume":"198 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124439680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Self-checking FSMs based on a constant distance state encoding 基于定距状态编码的自校验FSMs
Proceedings of International Workshop on Defect and Fault Tolerance in VLSI Pub Date : 1995-11-13 DOI: 10.1109/DFTVS.1995.476961
C. Bolchini, R. Montandon, F. Salice, D. Sciuto
{"title":"Self-checking FSMs based on a constant distance state encoding","authors":"C. Bolchini, R. Montandon, F. Salice, D. Sciuto","doi":"10.1109/DFTVS.1995.476961","DOIUrl":"https://doi.org/10.1109/DFTVS.1995.476961","url":null,"abstract":"The design of self-checking systems is a viable approach for coping with critical applications, guaranteeing the on-line detection of a fault as soon as it causes an erroneous behavior. The aim of this paper is the definition of a design strategy for sequential circuits, starting from their description in terms of Finite State Machines. The attention is focused on a constant distance code and state encoding technique which provide, together with a traditional Berger encoding of the outputs, a self-checking system. Benchmark results and a comparison with other approaches are presented to evaluate the quality of the proposed methodology.","PeriodicalId":362167,"journal":{"name":"Proceedings of International Workshop on Defect and Fault Tolerance in VLSI","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128307075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 12
A row-based FPGA for single and multiple stuck-at fault detection 用于单个和多个卡在故障检测的基于行FPGA
Proceedings of International Workshop on Defect and Fault Tolerance in VLSI Pub Date : 1995-11-13 DOI: 10.1109/DFTVS.1995.476956
Xiao-Tao Chen, Wei-Kang Huang, F. Lombardi, Xiao Sun
{"title":"A row-based FPGA for single and multiple stuck-at fault detection","authors":"Xiao-Tao Chen, Wei-Kang Huang, F. Lombardi, Xiao Sun","doi":"10.1109/DFTVS.1995.476956","DOIUrl":"https://doi.org/10.1109/DFTVS.1995.476956","url":null,"abstract":"This paper presents a practical and low cost design-for-testability (DFT) scheme for the row-based field programmable gate array (FPGA) which is widely used for rapid prototyping, hardware verification/emulation of VLSI chips and manufacturing of complex digital systems. A new module is introduced for the DFT of the FPGA. The proposed DFT scheme permits the uncommitted FPGA to be tested using a set of constant cardinality (C-testability) for single and multiple stuck-at fault detection, while reducing the number of required primary test pins to only one. The number of tests for the FPGA is still 8+n/sub f/ (where n/sub f/ is the number of sequential modules in a row of the array), but only one primary pin and a small amount of testing circuitry are now required. This paper also modifies the single fault test set to accomplish multiple fault detection under two multiple fault models: the multiple fault single module (MFSM) and the single fault multiple module (SFMM) models. It is shown that by appropriately changing the don't care entries in the vectors of the test set for single fault detection, 100% and nearly 100% fault coverages can be achieved under the MFSM and SFMM models respectively.","PeriodicalId":362167,"journal":{"name":"Proceedings of International Workshop on Defect and Fault Tolerance in VLSI","volume":"2021 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133159722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 22
Bit-modular defect/fault-tolerant convolvers 位模缺陷/容错卷积
Proceedings of International Workshop on Defect and Fault Tolerance in VLSI Pub Date : 1995-11-13 DOI: 10.1109/DFTVS.1995.476941
L. Dadda, V. Piuri
{"title":"Bit-modular defect/fault-tolerant convolvers","authors":"L. Dadda, V. Piuri","doi":"10.1109/DFTVS.1995.476941","DOIUrl":"https://doi.org/10.1109/DFTVS.1995.476941","url":null,"abstract":"Design of a family of high-throughput modular convolvers is discussed, with particular reference to the defect and fault tolerance issues. The proposed architecture is based on parallel computation for the individual operands' bits with final merging of the partial results. Different degrees of defect/fault tolerance are considered for different production and operational environments. Modularity is exploited to support also functional adaptability.","PeriodicalId":362167,"journal":{"name":"Proceedings of International Workshop on Defect and Fault Tolerance in VLSI","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127767128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
A study of time redundant fault tolerance techniques for superscalar processors 超标量处理器的时间冗余容错技术研究
Proceedings of International Workshop on Defect and Fault Tolerance in VLSI Pub Date : 1995-11-13 DOI: 10.1109/DFTVS.1995.476954
M. Franklin
{"title":"A study of time redundant fault tolerance techniques for superscalar processors","authors":"M. Franklin","doi":"10.1109/DFTVS.1995.476954","DOIUrl":"https://doi.org/10.1109/DFTVS.1995.476954","url":null,"abstract":"As more and more transistors are incorporated into processor chips, the circuits are becoming more and more error-prone, necessitating the introduction of fault tolerance techniques. This paper investigates techniques to incorporate fault tolerance in superscalar processors by exploiting the functional unit redundancy available in these processors. The schemes investigated in this paper do not require any modifications to the instruction set architecture of the machine, and no additional instructions are added by the compiler. The paper also presents the results of a simulation study that we conducted to analyze the performance impact of the investigated fault tolerance schemes.","PeriodicalId":362167,"journal":{"name":"Proceedings of International Workshop on Defect and Fault Tolerance in VLSI","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122623434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 57
Totally defect-tolerant arrays capable of quick broadcasting 完全容错阵列,能够快速广播
Proceedings of International Workshop on Defect and Fault Tolerance in VLSI Pub Date : 1995-11-13 DOI: 10.1109/DFTVS.1995.476944
N. Tsuda, T. Ishikawa, Yukihiro Nakamura
{"title":"Totally defect-tolerant arrays capable of quick broadcasting","authors":"N. Tsuda, T. Ishikawa, Yukihiro Nakamura","doi":"10.1109/DFTVS.1995.476944","DOIUrl":"https://doi.org/10.1109/DFTVS.1995.476944","url":null,"abstract":"This paper proposes an advanced spare-connection scheme for k-out-of-n redundancy called \"generalized additional bypass linking (ABL)\" for total defect-tolerance in large hybrid-WSIs with array structures. The proposed scheme uses bypass links with wired-OR connections to spare processing elements (PEs) without external switches, and can reconfigure complete arrays by tolerating defects in these PEs, links, and external I/O-terminals. The wired-OR connections help to limit the increase in the PE-connections of spare PEs, and these connections are made so that the primary PEs are an inter-PE distance of 3 or more away from each other and are connected to the same bypass link in parallel. The ABL scheme can be used for constructing totally defect-tolerant (TDT) arrays capable of quick broadcasting by using spare circuitries, and it is superior to conventional schemes in terms of extra PE-connections and control of the reconfiguration. This paper describes the basic ABL configurations for series-connected arrays, two-dimensional mesh-connected arrays, and binary trees, and further describes a hierarchical application of the ABL scheme that allows the construction of large arrays using shorter bypass links than the basic ABL configurations.","PeriodicalId":362167,"journal":{"name":"Proceedings of International Workshop on Defect and Fault Tolerance in VLSI","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128304287","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
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