SLAM: a smart analog module layout generator for mixed analog-digital VLSI design

Chen, D.J.; Lee, J.-C.; Sheu, B.J.

doi:10.1109/iccd.1989.63321

Cited by 13 publications

(3 citation statements)

References 8 publications

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“…Critical signal paths and nodes are also identified. The recognition results are used in the automated analogue layout generator [29]. Layout parasitics can be optionally included in the optimisation step, as shown in Fig.…”

Section: Equation Substitutions In Knowledge Basementioning

confidence: 99%

Flexible architecture approach to knowledge-based analogue IC design

Sheu

Lee

Fung

1990

IEE Proc. F Radar Signal Process. UK

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A new design methodology for knowledge-based analogue IC design is presented. Due to the nonlinear nature of the analogue design process, iterations are always necessary to achieve accurate and reliable designs. A prototype expert system design assistant and a conventional circuit simulator are used for the iterative design process. The expert system employed is capable of optimising circuit topologies, as well as circuit element geometries, to better satisfy the performance specifications. Circuit reconstruction is achieved through circuit primitive replacements and design equation substitutions. Circuit primitive and critical nodes are processed before layout generation to minimise undesired parasitic effects. Layout parasitics can be included optionally in the design optimisation step. Experimental results are shown, to demonstrate the effectiveness of the flexible architecture approach through iteration and the expert analogue design system.

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Section: Equation Substitutions In Knowledge Basementioning

confidence: 99%

Flexible architecture approach to knowledge-based analogue IC design

Sheu

Lee

Fung

1990

IEE Proc. F Radar Signal Process. UK

Self Cite

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“…FASoc adopts a delay chain based implementation of Ref. [20] that avoids the intensive analog blocks as required in the conventional designs. As a result, this tool can support many pre-defined AMS circuits with a wide range of programmability, including all-digital PLLs, power management, ADCs, and sensor interfaces.…”

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confidence: 99%

Challenges and opportunities toward fully automated analog layout design

et al. 2020

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Realizing the layouts of analog/mixed-signal (AMS) integrated circuits (ICs) is a complicated task due to the high design flexibility and sensitive circuit performance. Compared with the advancements of digital IC layout automation, analog IC layout design is still heavily manual, which leads to a more time-consuming and error-prone process. In recent years, significant progress has been made in automated analog layout design with emerging of several open-source frameworks. This paper firstly reviews the existing state-of-the art AMS layout synthesis frameworks with focus on the different approaches and their individual challenges. We then present recent research trends and opportunities in the field. Finally, we summaries the paper with open questions and future directions for fully-automating the analog IC layout.

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“…In the ILAC system [4], the library of fixed layout cells is replaced by more flexible, parameterized module generators, known from digital technique [10]. SLAM [2] recognizes a set of analog CMOS circuit primitives. A relatively small number of module layout generators is required.…”

Section: Introductionmentioning

confidence: 99%