Ali Siadat - Academia.edu (original) (raw)
Papers by Ali Siadat
Extension des méthodes DFM pour l’industrialisation de produits microélectroniques
Extension des méthodes DFM pour l'industrialisation de produits microélectroniques
2012 IEEE International Conference on Management of Innovation & Technology (ICMIT), 2012
Revue Française de Gestion Industrielle, 2005
National audienc
2008 4th IEEE International Conference on Management of Innovation and Technology, 2008
In most of the modern production factories, manufacturing events are capitalized inside the manuf... more In most of the modern production factories, manufacturing events are capitalized inside the manufacturing information system. To address Overall Equipment Efficiency (OEE), Yield, cost and to reduce actual events impact, action plans are defined by the engineering organization. To secure and manage the action plan process in a preventive way, risk analysis methodology can be used. This paper proposes an approach which establishes a continuous bond between factory events, risk analysis and related action plan with minimal and under control human intervention. A unified management method is proposed. Deployment uses cases from semiconductor industry using the proposed method are shown.
IFAC Proceedings Volumes, 2008
This paper will focus on the management and improvement of equipment availability with better pre... more This paper will focus on the management and improvement of equipment availability with better prevention of failures. It is focused on one of process control tasks: preliminary risks analysis. The result from this study is a method which empowered engineers and managers decision about actions to implement regarding negative events in their manufacture. The article proposes a risk based maintenance method, which relies on the regular and automatic XSGDWH RI HTXLSPHQWV ¶ ULVN DQDO\VHV LQFOXGLQJ equipment failure history. The associated aided decision tool is presented. The article is structured in four parts. After a risk management domain literature overview, the paper presents the new risk based maintenance method. A case study in semiconductor industry shows that FMECA can be employed in a dynamic way for managing maintenance activities. The alternative model simplifies and makes more reliable risks identification and estimation. Results and a short discussion end the article
ABSTRACT Among implications for business configuration and location strategy of any emergency log... more ABSTRACT Among implications for business configuration and location strategy of any emergency logistic plan the key question is the optimum balance between the risks of concentration and dispersion of backup facilities. That balance must determine how far these facilities should be located. If the crisis backup site is located too close to other company’s branches, it will be exposed to the same set of risks and location at greater distances will decrease the chances for business survival. In this paper, a new bi-objective model for locating backup facilities in multi branch companies considering spatial dispersion and concentration risks has been developed to cope with both concentration and dispersion risks by determining the optimum total risk value and the augmented ε-constraint method is used to deal with multi-objective.
International Journal on Interactive Design and Manufacturing (IJIDeM), 2008
Abstract The imperfections of the manufacturing process lead to functional characteristics degrad... more Abstract The imperfections of the manufacturing process lead to functional characteristics degradation, and therefore product quality. To ensure a certain level of product qua-lity, the synthesis of tolerance (tolerance design) aims to determine the acceptable limits of the ...
2008 4th IEEE International Conference on Management of Innovation and Technology, 2008
This paper proposes an approach to develop a quality/cost-based conceptual process planning (QC-C... more This paper proposes an approach to develop a quality/cost-based conceptual process planning (QC-CPP). This approach aims to determine key process resources with estimation of manufacturing cost, taking into account the risk cost associated to the process plan. It can serve as a useful methodology to support decision making during the initial planning stage of the product development cycle. Quality function deployment (QFD) method is used to select process alternatives by incorporating a capability function for process elements called a composite process capability index (CCP). The quality characteristics and the process elements in QFD method have been taken as input to complete process failure mode and effects analysis (FMEA) table. To estimate manufacturing cost, the proposed approach deploys activity-based costing (ABC) method. Then, an extended technique of classical FMEA method is employed to estimate the cost of all risks associated to studied process plan, this technique is called cost-based FMEA. For each combination of resources, cost-based FMEA proposes a set of recommended actions, estimates their cost and the risk cost. The output data gathered in this approach are used to perform decision guidelines for detailed process planning in order to improve product quality/cost ratio. A case study is presented to illustrate this approach.
IFAC Proceedings Volumes, 2007
The capability to estimate accurately the internal costs of a product in the different stages of ... more The capability to estimate accurately the internal costs of a product in the different stages of the development as well as external cost at the quote step is of a strategic importance to a company. The traditional accounting methods as well as the estimation tools have shown their limits to provide a stringent unified tool in both the accounting and the technical sides. A Method of estimation based on the Cost Entity was born recently in order to overcome the loopholes of the usual methods. This method allows from a more or less complete description of the product to link the manufacturing processes (Manufacturing Entities) with the consumption of the associated resources (Cost Entities). The highly cognitive character of such an approach suits the use of a knowledge formalization tool, like ontology. In fact, besides being a simple referencing tool for objects and concepts, the ontologies will allow to capitalize, formalize and structure the concrete knowledge (product description, process…) as well as the abstract one (calculus process, expert rules…) which are both required for cost estimations. The treatment of this knowledge to obtain cost estimation will be done by an independent expert system.
Communications in Computer and Information Science, 2011
Page 1. MM Cruz-Cunha et al. (Eds.): CENTERIS 2011, Part I, CCIS 219, pp. 118128, 2011. © Spring... more Page 1. MM Cruz-Cunha et al. (Eds.): CENTERIS 2011, Part I, CCIS 219, pp. 118128, 2011. © Springer-Verlag Berlin Heidelberg 2011 An Extended IDM Business Model to Ensure Time-to-Quality in Semiconductor Manufacturing Industry ...
Knowledge and Technology Integration in Production and Services, 2002
This paper introduces the prototyping of an intelligent supervision system, intended to become an... more This paper introduces the prototyping of an intelligent supervision system, intended to become an advanced manufacturing process control system, and is a summary of its conceptual framework. Constraints linked to each development on an industrial field let emerge new concepts and in our case the two parts of this framework: the structure of the advanced manufacturing process control system and the advanced application development methodology. Their instantiations to our industrial study-case leI us prove their validity by solving environmental constraints and exploiting industrial and scientific issues.
Robotics and Computer-Integrated Manufacturing, 2010
Conceptual process planning (CPP) is an important technique for assessing the manufacturability a... more Conceptual process planning (CPP) is an important technique for assessing the manufacturability and estimating the cost of conceptual design in the early product design stage. This paper presents an approach to develop a quality/cost-based conceptual process planning (QCCPP). This approach aims to determine key process resources with estimation of manufacturing cost, taking into account the risk cost associated to the process plan. It can serve as a useful methodology to support the decision making during the initial planning stage of the product development cycle. Quality function deployment (QFD) method is used to select the process alternatives by incorporating a capability function for process elements called a composite process capability index (CCP). The quality characteristics and the process elements in QFD method have been taken as input to complete process failure mode and effects analysis (FMEA) table. To estimate manufacturing cost, the proposed approach deploys activity-based costing (ABC) method. Then, an extended technique of classical FMEA method is employed to estimate the cost of risks associated to the studied process plan, this technique is called cost-based FMEA. For each resource combination, the output data is gathered in a selection table that helps for detailed process planning in order to improve product quality/cost ratio. A case study is presented to illustrate this approach.
Journal of Loss Prevention in the Process Industries, 2009
Maintenance process and planning are at the heart of industrial occupations. Processes and equipm... more Maintenance process and planning are at the heart of industrial occupations. Processes and equipments require controls and strategies to reduce costs and yield loss. Risk Based Maintenance (RBM) helps in reducing machinery failure rate and managing actions priorities. This paper proposes a method using FMECA as an operational tool which unveils productivity improvement areas. It demonstrates that it is possible to use FMECA method in a more dynamic environment, continuously updated by operational events. The article proposes a risk based maintenance method, which relies on the regular and automatic update of equipments risk analyses including equipment failure history. The method gives up-to-date information about equipments' risks. The article is structured in four parts. After a risk management domain literature overview, the paper presents a new risk based maintenance method. A case study in semiconductor industry shows that FMECA can be employed in a dynamic way for managing maintenance activities. The proposed model simplifies and makes more reliable risks identification and estimation. Results and a brief discussion conclude the article.
Journal of Intelligent Manufacturing, 2008
This study presents operational methods which improves tools control plan. To face challenges lin... more This study presents operational methods which improves tools control plan. To face challenges linked with quality, cost, cycle time, development and environment, semiconductors industries set classical process control methods. However many interactions between product-processes and tools are not exploited in practice for fine tuning controls operations and detecting premises of non conformities occurrences.
International Journal of Computational Intelligence Research, 2009
The International Journal of Advanced Manufacturing Technology, 2009
Efficient and effective forging process selection for a given set of product characteristics and ... more Efficient and effective forging process selection for a given set of product characteristics and requirements is a multicriterion problem strongly influenced by interdependent factors like product complexity, design requirements, product quality, resource availability, and cost. These factors are formalized based on the information provided regarding the role and experiences of experts in product-process design; however, design representation is considered as a network of product and process parameters and expert's knowledge as a set of constraints applied on the parametric network. This paper proposes an integrated product-process approach to evaluate its consistency and is useful in selecting suitable forging process and product design parameters. Computer support tool has been developed to present and to integrate the product parameters, the process characteristics, and the expert's knowledge related to forging domain to select an appropriate forging process evaluated through a constraint propagation algorithm. This approach is validated through a case study presented at the end.
IEEE Aerospace and Electronic Systems Magazine, 2010
This presents a system approach for an action plan management process. Based on the systematic us... more This presents a system approach for an action plan management process. Based on the systematic usage of risk evaluation, it helps in actions priorities definition. Several organisations generate actions belonging to separate business goals, sometimes contradictory. Moreover, maintenance, quality, process, research and development organisations use different approaches to define actions priorities. In this case study, more than 400 engineers participate in this process and generating between 20 to 50 action sets monthly (each set can contain around 3 actions). This demonstrates that it is possible to unify action plans management. This has been achieved by developing a model of management system integrating several quality methods. The proposed tool enables local managers to have a clear picture of ongoing and planned actions for their areas. For plant managers, it smoothes the coordination among organizations.
Computers & Industrial Engineering, 2009
The allocation of design and manufacturing tolerances has a significant effect on both manufactur... more The allocation of design and manufacturing tolerances has a significant effect on both manufacturing cost and quality. This paper considers nonlinearly constrained tolerance allocation problems. The purpose is to minimize the ratio between the sum of the manufacturing costs (tolerances costs) and the risk (probability of the respect of geometrical requirements). The techniques of Monte Carlo simulation and genetic algorithm are adopted to solve these problems. As the simplest and the popular method for non-linear statistical tolerance analysis, the Monte Carlo simulation is introduced into the frame. Moreover, in order to make the frame efficient, the genetic algorithm is improved according to the features of the Monte Carlo simulation. An illustrative example (hyperstatic mechanism) is given to demonstrate the efficiency of the proposed approach.
Extension des méthodes DFM pour l’industrialisation de produits microélectroniques
Extension des méthodes DFM pour l'industrialisation de produits microélectroniques
2012 IEEE International Conference on Management of Innovation & Technology (ICMIT), 2012
Revue Française de Gestion Industrielle, 2005
National audienc
2008 4th IEEE International Conference on Management of Innovation and Technology, 2008
In most of the modern production factories, manufacturing events are capitalized inside the manuf... more In most of the modern production factories, manufacturing events are capitalized inside the manufacturing information system. To address Overall Equipment Efficiency (OEE), Yield, cost and to reduce actual events impact, action plans are defined by the engineering organization. To secure and manage the action plan process in a preventive way, risk analysis methodology can be used. This paper proposes an approach which establishes a continuous bond between factory events, risk analysis and related action plan with minimal and under control human intervention. A unified management method is proposed. Deployment uses cases from semiconductor industry using the proposed method are shown.
IFAC Proceedings Volumes, 2008
This paper will focus on the management and improvement of equipment availability with better pre... more This paper will focus on the management and improvement of equipment availability with better prevention of failures. It is focused on one of process control tasks: preliminary risks analysis. The result from this study is a method which empowered engineers and managers decision about actions to implement regarding negative events in their manufacture. The article proposes a risk based maintenance method, which relies on the regular and automatic XSGDWH RI HTXLSPHQWV ¶ ULVN DQDO\VHV LQFOXGLQJ equipment failure history. The associated aided decision tool is presented. The article is structured in four parts. After a risk management domain literature overview, the paper presents the new risk based maintenance method. A case study in semiconductor industry shows that FMECA can be employed in a dynamic way for managing maintenance activities. The alternative model simplifies and makes more reliable risks identification and estimation. Results and a short discussion end the article
ABSTRACT Among implications for business configuration and location strategy of any emergency log... more ABSTRACT Among implications for business configuration and location strategy of any emergency logistic plan the key question is the optimum balance between the risks of concentration and dispersion of backup facilities. That balance must determine how far these facilities should be located. If the crisis backup site is located too close to other company’s branches, it will be exposed to the same set of risks and location at greater distances will decrease the chances for business survival. In this paper, a new bi-objective model for locating backup facilities in multi branch companies considering spatial dispersion and concentration risks has been developed to cope with both concentration and dispersion risks by determining the optimum total risk value and the augmented ε-constraint method is used to deal with multi-objective.
International Journal on Interactive Design and Manufacturing (IJIDeM), 2008
Abstract The imperfections of the manufacturing process lead to functional characteristics degrad... more Abstract The imperfections of the manufacturing process lead to functional characteristics degradation, and therefore product quality. To ensure a certain level of product qua-lity, the synthesis of tolerance (tolerance design) aims to determine the acceptable limits of the ...
2008 4th IEEE International Conference on Management of Innovation and Technology, 2008
This paper proposes an approach to develop a quality/cost-based conceptual process planning (QC-C... more This paper proposes an approach to develop a quality/cost-based conceptual process planning (QC-CPP). This approach aims to determine key process resources with estimation of manufacturing cost, taking into account the risk cost associated to the process plan. It can serve as a useful methodology to support decision making during the initial planning stage of the product development cycle. Quality function deployment (QFD) method is used to select process alternatives by incorporating a capability function for process elements called a composite process capability index (CCP). The quality characteristics and the process elements in QFD method have been taken as input to complete process failure mode and effects analysis (FMEA) table. To estimate manufacturing cost, the proposed approach deploys activity-based costing (ABC) method. Then, an extended technique of classical FMEA method is employed to estimate the cost of all risks associated to studied process plan, this technique is called cost-based FMEA. For each combination of resources, cost-based FMEA proposes a set of recommended actions, estimates their cost and the risk cost. The output data gathered in this approach are used to perform decision guidelines for detailed process planning in order to improve product quality/cost ratio. A case study is presented to illustrate this approach.
IFAC Proceedings Volumes, 2007
The capability to estimate accurately the internal costs of a product in the different stages of ... more The capability to estimate accurately the internal costs of a product in the different stages of the development as well as external cost at the quote step is of a strategic importance to a company. The traditional accounting methods as well as the estimation tools have shown their limits to provide a stringent unified tool in both the accounting and the technical sides. A Method of estimation based on the Cost Entity was born recently in order to overcome the loopholes of the usual methods. This method allows from a more or less complete description of the product to link the manufacturing processes (Manufacturing Entities) with the consumption of the associated resources (Cost Entities). The highly cognitive character of such an approach suits the use of a knowledge formalization tool, like ontology. In fact, besides being a simple referencing tool for objects and concepts, the ontologies will allow to capitalize, formalize and structure the concrete knowledge (product description, process…) as well as the abstract one (calculus process, expert rules…) which are both required for cost estimations. The treatment of this knowledge to obtain cost estimation will be done by an independent expert system.
Communications in Computer and Information Science, 2011
Page 1. MM Cruz-Cunha et al. (Eds.): CENTERIS 2011, Part I, CCIS 219, pp. 118128, 2011. © Spring... more Page 1. MM Cruz-Cunha et al. (Eds.): CENTERIS 2011, Part I, CCIS 219, pp. 118128, 2011. © Springer-Verlag Berlin Heidelberg 2011 An Extended IDM Business Model to Ensure Time-to-Quality in Semiconductor Manufacturing Industry ...
Knowledge and Technology Integration in Production and Services, 2002
This paper introduces the prototyping of an intelligent supervision system, intended to become an... more This paper introduces the prototyping of an intelligent supervision system, intended to become an advanced manufacturing process control system, and is a summary of its conceptual framework. Constraints linked to each development on an industrial field let emerge new concepts and in our case the two parts of this framework: the structure of the advanced manufacturing process control system and the advanced application development methodology. Their instantiations to our industrial study-case leI us prove their validity by solving environmental constraints and exploiting industrial and scientific issues.
Robotics and Computer-Integrated Manufacturing, 2010
Conceptual process planning (CPP) is an important technique for assessing the manufacturability a... more Conceptual process planning (CPP) is an important technique for assessing the manufacturability and estimating the cost of conceptual design in the early product design stage. This paper presents an approach to develop a quality/cost-based conceptual process planning (QCCPP). This approach aims to determine key process resources with estimation of manufacturing cost, taking into account the risk cost associated to the process plan. It can serve as a useful methodology to support the decision making during the initial planning stage of the product development cycle. Quality function deployment (QFD) method is used to select the process alternatives by incorporating a capability function for process elements called a composite process capability index (CCP). The quality characteristics and the process elements in QFD method have been taken as input to complete process failure mode and effects analysis (FMEA) table. To estimate manufacturing cost, the proposed approach deploys activity-based costing (ABC) method. Then, an extended technique of classical FMEA method is employed to estimate the cost of risks associated to the studied process plan, this technique is called cost-based FMEA. For each resource combination, the output data is gathered in a selection table that helps for detailed process planning in order to improve product quality/cost ratio. A case study is presented to illustrate this approach.
Journal of Loss Prevention in the Process Industries, 2009
Maintenance process and planning are at the heart of industrial occupations. Processes and equipm... more Maintenance process and planning are at the heart of industrial occupations. Processes and equipments require controls and strategies to reduce costs and yield loss. Risk Based Maintenance (RBM) helps in reducing machinery failure rate and managing actions priorities. This paper proposes a method using FMECA as an operational tool which unveils productivity improvement areas. It demonstrates that it is possible to use FMECA method in a more dynamic environment, continuously updated by operational events. The article proposes a risk based maintenance method, which relies on the regular and automatic update of equipments risk analyses including equipment failure history. The method gives up-to-date information about equipments' risks. The article is structured in four parts. After a risk management domain literature overview, the paper presents a new risk based maintenance method. A case study in semiconductor industry shows that FMECA can be employed in a dynamic way for managing maintenance activities. The proposed model simplifies and makes more reliable risks identification and estimation. Results and a brief discussion conclude the article.
Journal of Intelligent Manufacturing, 2008
This study presents operational methods which improves tools control plan. To face challenges lin... more This study presents operational methods which improves tools control plan. To face challenges linked with quality, cost, cycle time, development and environment, semiconductors industries set classical process control methods. However many interactions between product-processes and tools are not exploited in practice for fine tuning controls operations and detecting premises of non conformities occurrences.
International Journal of Computational Intelligence Research, 2009
The International Journal of Advanced Manufacturing Technology, 2009
Efficient and effective forging process selection for a given set of product characteristics and ... more Efficient and effective forging process selection for a given set of product characteristics and requirements is a multicriterion problem strongly influenced by interdependent factors like product complexity, design requirements, product quality, resource availability, and cost. These factors are formalized based on the information provided regarding the role and experiences of experts in product-process design; however, design representation is considered as a network of product and process parameters and expert's knowledge as a set of constraints applied on the parametric network. This paper proposes an integrated product-process approach to evaluate its consistency and is useful in selecting suitable forging process and product design parameters. Computer support tool has been developed to present and to integrate the product parameters, the process characteristics, and the expert's knowledge related to forging domain to select an appropriate forging process evaluated through a constraint propagation algorithm. This approach is validated through a case study presented at the end.
IEEE Aerospace and Electronic Systems Magazine, 2010
This presents a system approach for an action plan management process. Based on the systematic us... more This presents a system approach for an action plan management process. Based on the systematic usage of risk evaluation, it helps in actions priorities definition. Several organisations generate actions belonging to separate business goals, sometimes contradictory. Moreover, maintenance, quality, process, research and development organisations use different approaches to define actions priorities. In this case study, more than 400 engineers participate in this process and generating between 20 to 50 action sets monthly (each set can contain around 3 actions). This demonstrates that it is possible to unify action plans management. This has been achieved by developing a model of management system integrating several quality methods. The proposed tool enables local managers to have a clear picture of ongoing and planned actions for their areas. For plant managers, it smoothes the coordination among organizations.
Computers & Industrial Engineering, 2009
The allocation of design and manufacturing tolerances has a significant effect on both manufactur... more The allocation of design and manufacturing tolerances has a significant effect on both manufacturing cost and quality. This paper considers nonlinearly constrained tolerance allocation problems. The purpose is to minimize the ratio between the sum of the manufacturing costs (tolerances costs) and the risk (probability of the respect of geometrical requirements). The techniques of Monte Carlo simulation and genetic algorithm are adopted to solve these problems. As the simplest and the popular method for non-linear statistical tolerance analysis, the Monte Carlo simulation is introduced into the frame. Moreover, in order to make the frame efficient, the genetic algorithm is improved according to the features of the Monte Carlo simulation. An illustrative example (hyperstatic mechanism) is given to demonstrate the efficiency of the proposed approach.