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2003 Computer Aided and Integrated Manufacturing Systems  
In addition, the capital equipment cost of electronics assembly industry facilities are high in comparison to the usual turnover of a company.  ...  This work is organized as follows: We begin with an introduction to flexible manufacturing systems in general and present a framework for production planning systems in Section 1.  ...  [89] group PCBs to minimize the sum of the assembly and setup times.  ... 
doi:10.1142/9789812796813_0001 fatcat:ddkdmju5gna5rpsdjnvdyahvam

An Interactive System for Scheduling Jobs in Electronic Assembly

J. Smed, T. Johtela, M. Johnsson, M. Puranen, O. Nevalainen
2000 The International Journal of Advanced Manufacturing Technology  
This is a typical situation in printed circuit board (PCB) assembly.  ...  In addition to system description, we present statistical data of the effect of the system in an actual production environment.  ...  Acknowledgments The authors wish to thank Mr. Jouni Lehtinen from Teleste Corporation for his time and cooperation.  ... 
doi:10.1007/s001700050177 fatcat:niskfhfqlvbq3gudsholbcxdyi

Development of a Retrospective Job Exposure Matrix for PCB-exposed Workers in Capacitor Manufacturing

Nancy B. Hopf, Martha A. Waters, Avima M. Ruder, Mary M. Prince
2010 Journal of Occupational Health  
Development of a Retrospective Job Exposure Matrix for PCB-exposed Workers in Capacitor Manufacturing: Nancy B. HOPF, et al.  ...  Methods: A detailed exposure assessment for this plant was based on a number of exposure determinants (proximity, degree of contact with PCBs, temperature, ventilation, process control, job mobility).  ...  Our objective was to describe a general job exposure matrix (JEM) approach in a retrospective exposure assessment, for which typically few industrial hygiene data are available.  ... 
doi:10.1539/joh.l9151 pmid:20467200 fatcat:hkw6qyc5yfcs7m3c5is4rzntju

Historical reconstruction of polychlorinated biphenyl (PCB) exposures for workers in a capacitor manufacturing plant

Nancy B. Hopf, Avima M. Ruder, Martha A. Waters
2013 Environmental science and pollution research international  
Grouping by job is quite common as this information is generally readily available.  ...  The cells of the matrix indicate the presence, intensity and frequency of exposure to PCBs in a specific job. We also included calendar periods as a third axis.  ... 
doi:10.1007/s11356-013-1590-4 pmid:23475444 pmcid:PMC4557729 fatcat:4iw2vhabqrhj7lhfo74dthw2xy

Page 922 of The Journal of the Operational Research Society Vol. 60, Issue 7 [page]

2009 The Journal of the Operational Research Society  
He only tackled a problem involving minor setup times between jobs of the same family and major setup times between jobs of different groups.  ...  The manufacturing process of the LCM assembly gener- ally consists of front end and back end two main segments.  ... 

A genetic algorithm approach to scheduling PCBs on a single machine

O. Z. Maimon, D. Braha
1998 International Journal of Production Research  
To evaluate the performance of the GA, a heuristic solution based on a travelling salesman formulation is described.  ...  The problem consists of ® nding the order to schedule the PCBs on the axial insertion machine and the components to place on the spool before each PCB is processed.  ...  Acknowledgements Braha's work was partially supported by the Department of Manufacturing Engineering, Boston University, Boston, MA 02215 USA. The ® nancial support is gratefully acknowledged.  ... 
doi:10.1080/002075498193688 fatcat:5r3a3em7pzhghpsyyz7ttaxc4q

Job grouping in surface mounted component printing

Jouni Smed, Mika Johnsson, Mikko Puranen, Timo Leipälä, Olli Nevalainen
1999 Robotics and Computer-Integrated Manufacturing  
A discussion of the exact minimization by using mathematical 0/1 integer programming approach is also given.  ...  This report is a revision of TUCS Technical Report No 139, which considered batch selection problem, whereas the present work is focused on job grouping problem in the same production environment.  ...  Acknowledgement The authors wish to thank Mr. Jouni Lehtinen from Teleste Corporation for his time and co-operation.  ... 
doi:10.1016/s0736-5845(98)00034-9 fatcat:cvuvpuggrbculjvd6aus5d24zi


2002 Journal of electronics manufacturing  
In the manufacture of printed circuit boards, electronic components are attached to a blank board by one or more pick-and-place machines.  ...  We consider the Integrated Clustering and Machine Setup (ICMS) model, which incorporates this tradeoff between processing time and setup time and seeks to minimize the sum of the two.  ...  Unlike conventional clustering approaches that rely on surrogate metrics for similarity of PCB jobs, ICMS forms clusters of PCB jobs by process commonality, i.e. prescribing groups of PCB jobs by common  ... 
doi:10.1142/s0960313102000448 fatcat:pehg6rrsazb7zmibyfade3v2va


2002 Journal of electronics manufacturing  
Randhawa This research was motivated by the use of multi-track feeders in the printed circuit board (PCB) assembly.  ...  The PCB sequencing problem is solved in three stages: component and PCB grouping, intra-and inter-group PCB sequencing, and feeder setup planning.  ...  Ordering the PCB groups, which determines the assembly order of PCB groups. Since no setup is needed in each group, the assembly order in a group can be arbitrary.  ... 
doi:10.1142/s0960313102000266 fatcat:2d6mxicigzer7m5f7ll2uab4ve

Printed circuit board scheduling in an openshop manufacturing environment

Bülent Çatay, Asoo J. Vakharia, S. Selçuk Erengüç
2005 The International Journal of Advanced Manufacturing Technology  
Printed circuit boards are used in a myriad of commercial and consumer products in today's marketplace.  ...  The results of our analysis can be used to trade-off operational savings of reduced cycle times versus tactical costs of reorganizing the equipment on the shop floor.  ...  [18] describe a hierarchical decomposition and mathematical programming approach for a line with several placement machines which are devoted to the assembly of a single product with restrictions on  ... 
doi:10.1007/s00170-005-2584-2 fatcat:xshgxjdrqbetxks7qfmytcb2hm

Set-up saving schemes for printed circuit boards assembly

Oded Z. Maimon, Ezey M. Dar-El, Tali F. Carmon
1993 European Journal of Operational Research  
Focusing on a basic printed circuit board (PCB) assembly line configuration characterized by very long set-up times, we examine two scheduling methods that can significantly reduce the set-up.  ...  Using the typical traditional scheduling method as a benchmark, the GSU and the SDS methods are compared in terms of three performance measures: line throughput, average work-in-process (WIP) inventory  ...  Their comments, suggestions and encouragement in all stages of the research, as well as the insightful comments of John A. Buzacott, Robert C.  ... 
doi:10.1016/0377-2217(93)90037-n fatcat:hnqqnfa6ebhxrn5fo54wqkvm5q

Optimizing the Operation Sequence of a Multihead Surface Mounting Machine Using a Discrete Particle Swarm Optimization Algorithm

Yee Ming Chen, Chun-Ta Lin
2008 Journal of Artificial Evolution and Applications  
To evaluate the performance of the proposed algorithm, we test it on assembly tasks of PCBs through simulations.  ...  In this paper, as a practical application, we focus on a discrete particle swarm optimization (DPSO) algorithm for multihead SMM which is used to minimize the number of nozzle change operations and pick  ...  ACKNOWLEDGMENT The authors would like to thank the reviewers for their valuable suggestions and advices to improve the quality of the paper.  ... 
doi:10.1155/2008/315950 fatcat:wv7w56svajf7vntp2au6tqrgva

Production planning problems in printed circuit board assembly

Yves Crama, Joris van de Klundert, Frits C.R. Spieksma
2002 Discrete Applied Mathematics  
The discussion is structured around a hierarchical decomposition of the planning process into distinct optimization subproblems, addressing issues such as the assignment of board types to machine groups  ...  This survey describes some of the main optimization problems arising in the context of production planning for the assembly of printed circuit boards.  ...  Acknowledgements The authors are grateful to Endre Boros and Peter Hammer for giving them the opportunity and motivation to assemble this survey.  ... 
doi:10.1016/s0166-218x(01)00345-6 fatcat:uan4i7puund23hal2zwomwac3a

Group-scheduling problems in electronics manufacturing

Cumhur A. Gelogullari, Rasaratnam Logendran
2009 Journal of Scheduling  
Typically, in PCB manufacturing different board types requiring similar components are grouped together to reduce setup times and increase throughput.  ...  Rasaratnam Logendran, for his support and guidance over the course of the last four years. His strong enthusiasm for research has been an invaluable source of inspiration for me.  ...  This results in the need to address the PCB assembly processes for both types of manufacturers. A recent development in PCB assembly is the growing role of contract manufacturrng [91] .  ... 
doi:10.1007/s10951-009-0147-3 fatcat:fzzba4qet5hpvkkig2og7qkpj4

Integrated methodology for board assignment and component allocation in printed circuit board assembly

Patcharaporn Neammanee, Sabah U. Randhawa
2003 International Journal of Production Research  
PCB grouping based on component similarity between boards is used to reduce the problem size.  ...  Randhawa The purpose of this research is to develop an approach to minimize makespan for assigning boards to production lines.  ...  The proposed heuristics applied a combination of typical rules to select available assembly machines and to schedule jobs.  ... 
doi:10.1080/0020754021000036938 fatcat:uvsmv5ibs5adtglfkhqxibmltu
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