Now showing items 37-56 of 108

    • Gaussian Distribution Approximation for Localized Effects of Input Parameters 

      Rzepniewski, Adam K.; Hardt, David E. (2003-01)
      In the application of cycle-to-cycle control to manufacturing processes, the model of the process reduces to a gain matrix and a pure delay. For a general multiple input – multiple output process, this matrix shows the ...
    • Generation of Dielectrophoretic Force under Uniform Electric Field 

      Kua, C.H.; Yang, C.; Goh, S.; Isabel, R.; Youcef-Toumi, Kamal; e.a. (2006-01)
      Effective dipole moment method has been widely accepted as the de facto technique in predicting the dielectrophoretic force due to the non-uniform electric field. In this method, a finite-particle is modeled as an equivalent ...
    • A Generic Mechanism for Repairing Job Shop Schedules 

      Raheja, Amritpal Singh; Reddy, K. Rama Bhupal; Subramaniam, Velusamy (2003-01)
      Reactive repair of a disrupted schedule is a better alternative to total rescheduling, as the latter is a time consuming process and also results in shop floor nervousness. The schedule repair heuristics reported in the ...
    • A Hybrid Intelligent System for Stamping Process Planning in Progressive Die Design 

      Zhang, W.Y.; Tor, Shu Beng; Britton, G.A. (2004-01)
      This paper presents an intelligent, hybrid system for stamping process planning in progressive die design. The system combines the flexibility of blackboard architecture with case-based reasoning. The hybrid system has the ...
    • Imaging at the Nano-scale: State of the Art and Advanced Techniques 

      Aumond, Bernardo D.; El Rifai, Osamah M.; Youcef-Toumi, Kamal (2003-01)
      Surface characteristics such as topography and critical dimensions serve as important indicators of product quality and manufacturing process performance especially at the micrometer and the nanometer scales. This paper ...
    • InGaAsN/GaAs Quantum-well Laser Diodes 

      Wang, S.Z.; Yoon, Soon Fatt (2004-01)
      GaAs-based InGaAsN/GaAs quantum well is found to be very sensitive to growth conditions and ex-situ annealing processes. Annealing could drastically increase the optical quality of GaAs-based InGaAsN/GaAs quantum well. As ...
    • Investigation of aspect ratio of hole drilling from micro to nanoscale via focused ion beam fine milling 

      Fu, Yongqi; Ngoi, Kok Ann Bryan (2005-01)
      Holes with different sizes from microscale to nanoscale were directly fabricated by focused ion beam (FIB) milling in this paper. Maximum aspect ratio of the fabricated holes can be 5:1 for the hole with large size with ...
    • A Lab Scale Polymer Micro-Embossing Machine for Process Control Research 

      Ganesan, Bala; Hardt, David E. (2004-01)
      Micro embossing is the process of fabricating micron-sized features by plastic deformation of a work piece by means of a shaped tool or die. In our work we are concerned with hot embossing of PMMA to produce features in ...
    • Logistics Network Design with Differentiated Delivery Lead-Time: Benefits and Insights 

      Cheong, Michelle L.F.; Bhatnagar, Rohit; Graves, Stephen C. (2005-01)
      Most logistics network design models assume exogenous customer demand that is independent of the service time or level. This paper examines the benefits of segmenting demand according to lead-time sensitivity of customers. ...
    • Logistics Outsourcing and 3PL Challenges 

      Cheong, Michelle L.F. (2004-01)
      Logistics has been an important part of every economy and every business entity. The worldwide trend in globalization has led to many companies outsourcing their logistics function to Third-Party Logistics (3PL) companies, ...
    • Markov Process Modeling of A System Under WIPLOAD Control 

      Qi, Chao; Appa Iyer, Sivakumar; Ganesan, Viswanath Kumar (2005-01)
      This paper analyzes a proposed release controlmethodology, WIPLOAD Control (WIPLCtrl), using a transfer line case modeled by Markov process modeling methodology. The performance of WIPLCtrl is compared with that of CONWIP ...
    • Material and Product Design Integration: Establishing Relationships between Design Variables of Both Domains 

      Lu, Wen Feng; Deng, Y.-M. (2004-01)
      Due to the increasing demand of application-specific and/or multi-functional materials, it is necessary to integrate material design and product design. To support such design integration, this paper proposes a methodology ...
    • A Mechanical Model for Erosion in Copper Chemical-Mechanical Polishing 

      Noh, Kyungyoon; Saka, Nannaji; Chun, Jung-Hoon (2003-01)
      The Chemical-mechanical polishing (CMP) process is now widely employed in the ultralarge scale integration chip fabrication. Due to the continuous advances in semiconductor fabrication technology and decreasing sub-micron ...
    • Mechanics,Mechanisms and Modeling of the Chemical Mechanical Polishing Process 

      Noh, Kyungyoon; Lai, Jiun-Yu; Saka, Nannaji; Chun, Jung-Hoon (2002-01)
      The Chemical Mechanical polishing (CMP) process is now widely employed in the Integrated Circuit Fabrication. However, due to the complexity of process parameters on the material removal rate (MRR), mechanism of material ...
    • Micro-layered-photolithography for Micro-Fabrication and Micro-Molding 

      Tang, Y.; Loh, Han Tong; Fuh, J.-Y.-H.; Lu, L.; Wong, Yeow Sheong; e.a. (2005-01)
      A novel process based on the principle of layered photolithography has been proposed and tested for making real three-dimensional micro-structures. An experimental setup was designed and built for doing experiments on this ...
    • Mining Of Text In The Product Development Process 

      Loh, Han Tong; Menon, Rakesh; Leong, Christopher K. (2002-01)
      In the prevailing world economy, competition is keen and firms need to have an edge over their competitors for profitability and sometimes, even for the survival of the business itself. One way to help achieve this is the ...
    • A Model for Contingent Manpower Planning: Insights from a High Clock Speed Industry 

      Bhatnagar, Rohit; Venkataramanaiah, S.; Rajagopalan, Anand (2003-01)
      Intense competitive pressures have led to compressed product life cycles and frequent introduction of new products. This creates demand volatility and a consequent pressure on manufacturing to meet this variable demand. ...
    • Modeling and Analysis of Manufacturing Systems with Multiple-Loop Structures 

      Zhang, Zhenyu; Gershwin, Stanley B. (2006-01)
      Kanban and Constant Work-In-Process (CONWIP) control methods are designed to impose tight controls over inventory, while providing a satisfactory production rate. This paper generalizes systems with kanban or CONWIP control ...
    • Modeling and Analysis of Re-entrant Production Systems 

      Jang, Young Jae; Gershwin, Stanley B. (2006-01)
      This paper presents a model and analysis of a re-entrant production line with finite buffers and unreliable machines. Semiconductor device and liquid crystal display (LCD) fabrication processes are characterized as a ...
    • Modeling and Analysis of Two-Part Type Manufacturing Systems 

      Jang, Young Jae; Gershwin, Stanley B. (2005-01)
      This paper presents a model and analysis of a synchronous tandem flow line that produces different part types on unreliable machines. The machines operate according to a static priority rule, operating on the highest ...