Automated Schematic Transformation to Enhance Circuit Failure Design Debug

Author(s):  
Varun Gupta ◽  
Wee Yee Wendy Lau ◽  
S.H. Goh ◽  
H.W. Ho ◽  
B.L. Yeoh ◽  
...  

Abstract In a failure event, circuit schematic analysis usually follows after fault isolation to increase the success rate. However, analyzing an extracted netlist of the isolated sub-circuit can be messy. Manual circuit translation from layout where the analyst is in control of the cell instance placement is one way to overcome this challenge. Although it is neater and intuitive for analysis, it can be time consuming to create the schematic. To analyze circuits in a systematic manner, cross-mapping between layout and schematic contents is the most commonly recognized approach. However, at times, cross-mapping alone is insufficient and some further simplification procedures are favorable. This paper describes the challenges and illustrates using real case studies, how schematics re-ordering and substitutions can be useful to simplify and enhance circuit analysis. These procedures can be implemented in an automated manner to enhance turnaround time for analysis.

Author(s):  
H.S. Wang ◽  
C.C. Lin ◽  
T.Y. Sung ◽  
K.C. Chang ◽  
S.C. Yang ◽  
...  

Abstract Localizing a tiny fault causing abnormal leakage current in a large area P/N junction for a large MOS, diode or BJT structure by nano-probing was demonstrated. The localization was realized through probing the contacts on the junctions and comparing the reversed bias junction current for each contact which maintain the same polarity on the P/N junction. The tiny fault location which is causing the leakage in the large area P/N junction is indicated by the contact with the largest current due to the lowest sheet row resistance path to the fault as measured by nano-probing. Therefore, the success rate to identify the real physical fault by TEM and the ability to take the precise process action to correct the problem is greatly increased by this method. An artificial fault experiment induced by use of FIB as well as real case studies also verifies this method is valid and useful.


Author(s):  
S. H. Goh ◽  
E. Susanto ◽  
Song Li ◽  
B. L. Yeoh ◽  
M. H. THor ◽  
...  

Abstract Post-fault isolation layout net trace and circuit analysis based on abnormal hotspots is a critical step because it directly impacts the outcome of failure analysis. In this work, we review current commercial net tracing solutions in terms of their strengths and drawbacks. As an enhancement, a new net methodology that enables automation and the capability to execute tracing beyond first-level transistors is introduced. This approach could potentially eliminate manual net tracing and significantly improves the overall failure analysis turnaround time.


TEM Journal ◽  
2021 ◽  
pp. 1525-1533
Author(s):  
Allen A. Castillo ◽  
M. Natalia Galván Osuna ◽  
Norma A. Barboza Tello ◽  
Alejandra J. Vega

Teaching short-circuit analysis is conducted primarily through case studies; however, there are not many validated short-circuit studies available on the subject, especially when considering off-nominal turns ratio transformers. In order to improve the teaching of short-circuit analysis, a three phase short-circuit study in an industrial system according to ANSI/IEEE standards by means of Zmatrix method is presented; two case studies are considered: the industrial system with nominal and offnominal turns ratio transformers, in both cases the step by step solution is given in an explicit manner and the analytical results are validated through software simulation.


2014 ◽  
Vol 83 (2) ◽  
pp. 182-188
Author(s):  
Elżbieta Skorupska ◽  
Ewa Mojs ◽  
Włodzimierz Samborski ◽  
José C. Millán-Calenti ◽  
Ana Maseda ◽  
...  

“UnderstAID” is a platform that helps informal caregivers to understand and aid their demented relatives. It is an international project initiated by Denmark, Poland and Spain.The aim of the project is to design, and implement the multimedia platform “understAID” to support informal caregivers of dementia patients. The project was launched in April 2013 and is expected to end 36 months later. The project is divided into five tasks concerning the final aim. The aim of task 1 is the management of the project, as well as the exploitation and dissemination of gathered information. Task 2 is meant to define the contents and solutions of the CarePlatform based on the knowledge gained from real-case studies. Demented elderlies from each country (n = 40) suffering from different degrees of dementia were evaluated by formal caregivers and dementia professionals. The aim of task 3 is the development of the social learning interface. Task 4 focuses on the CarePlatform development and system integration. Finally, task 5 assumes testing and validation of the platform. The platform is devised to be available in two versions, namely the light one for mobile appliance and the premium version. Also different activities leading to the popularization of the platform are planned.


2019 ◽  
Author(s):  
Christopher Southan

This report covers academic small-molecule drug development with a view to distilling guidelines. The first section covers research productivity feeding into commercial development before reviewing the literature on statistics of academic development It then considers differences between probes and drugs before discussing the role of author guidelines in medicinal chemistry and pharmacology journals. Resources for comprehensive compound and target cross-checking are then covered followed by comparisons between public and commercial databases including case studies of selected compounds. It concludes with an outline of new scientific developments that could increase the success rate of academic drug development.


2019 ◽  
Author(s):  
Christopher Southan

This report covers academic small-molecule drug development with a view to distilling guidelines. The first section covers research productivity feeding into commercial development before reviewing the literature on statistics of academic development It then considers differences between probes and drugs before discussing the role of author guidelines in medicinal chemistry and pharmacology journals. Resources for comprehensive compound and target cross-checking are then covered followed by comparisons between public and commercial databases including case studies of selected compounds. It concludes with an outline of new scientific developments that could increase the success rate of academic drug development.


Author(s):  
Lisa Westwood ◽  
Beth Laura O’Leary ◽  
Milford Wayne Donaldson

“Preservation Works” provides examples of real case studies where historic preservation of space heritage has been successful, demonstrating potential routes for preservation. The chapter includes discussions on saving the Space Shuttles (led by Donaldson), designation of Tranquillity Base on state historical registries, establishment of a multi-state park for the Manhattan Project, and other smaller efforts to preserve artifacts and recognize sites.


Author(s):  
David Sammon ◽  
Frédéric Adam ◽  
Kevin Higgins ◽  
Mark Synnott

Over the last 30 years, the enterprise-wide systems movement has been gathering momentum and has now reached a global dimension, with companies across the world and, more importantly, across very different industries jumping on the ERP/SCM/CRM bandwagon. The pace of implementations has been such that SAP alone have now implemented their software in 30,000 sites and have a user population well in excess of 10 million. However, studies carried out since the ERP epidemic broke out have revealed that the rationale pursued by managers in acquiring ERP packages has sometimes been weak and not well informed. Moreover, the track record of ERP implementations has not been good with many examples of implementation failures. It is our contention that the problems reported in ERP projects are due to a failure to link the business model underlying ERP packages and the unique assets of organisations. In this research study, we carried out two in-depth case studies of organisations having just implemented ERP packages and focused on the preparation stage of their projects. We also carried out a survey of organisations having implemented ERP to confirm quantitatively how well managers prepare themselves for ERP. Based on these, we uncover patterns of ERP project preparation which may explain the low success rate of ERP projects and put forward some proposals which should help managers and researchers to increase the likelihood that ERP projects are successful.


2018 ◽  
Vol 14 (2) ◽  
pp. 43-58 ◽  
Author(s):  
S. Kirthica ◽  
Rajeswari Sridhar

One of the principle features on which cloud environments operate is the scaling up and down of resources based on users' needs, called elasticity. This feature is limited to the cloud's physical resources. This article proposes to enhance the elasticity of a cloud in an intelligent manner by communicating with an optimal external cloud (EC) and borrowing additional resources from it when the cloud runs out of resources. This inter-cloud communication is secured by a model whose structure is similar to the Kerberos protocol. To choose the optimal EC for a particular request of a user, a list of parameters, collectively termed as RePVoCRaD, are enumerated. Once chosen, trust is established with the chosen EC and inter-cloud communication begins. While existing works deal with third parties to establish or secure inter-cloud communication, this work is novel in that there is absence of third parties in the entire process, thereby reducing security threats and additional costs involved. Evaluating this work based on turnaround time and transaction success rate, in a real-time cloud environment, it is seen that the cloud's elasticity is so enhanced that it successfully accommodates its users' additional demands by the fastest means possible.


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