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'''Process development execution systems''' ('''PDES''') are [[software system]]s used to guide the development of high-tech manufacturing technologies like [[semiconductor]] manufacturing, [[MEMS]] manufacturing, [[photovoltaics]] manufacturing, [[biomedical]] devices or [[nanoparticle]] manufacturing. Software systems of this kind have similarities to [[product lifecycle management]] (PLM) systems. They guide the development of new or improved technologies from its conception, through development and into manufacturing. Furthermore, they borrow on concepts of [[manufacturing execution systems]] (MES) systems but tailor them for R&D rather than for production. PDES integrate people (with different backgrounds from potentially different legal entities), data (from diverse sources), information, knowledge and business processes.
== Benefits ==
[[File:PDESvsMESbyPR.jpg|
Documented benefits of process development execution systems include:
* Reduced [[time to market]]
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== Example: PDES usage during semiconductor device development ==
New ideas for manufacturing processes (for new goods/commodities or improved manufacturing) are often based on, or can at least benefit from, previous developments and recipes already in use. The same is true when developing new devices, for example, a [[Microelectromechanical systems|MEMS]] [[sensor]] or actuator. A PDES offers an easy way to access these previous developments in a structured manner. Information can be retrieved faster, and previous results can be taken into account more efficiently. A PDES typically offers means to display and search for result data from different viewpoints, and to categorise the data according to the different aspects. These functionalities are applied to all result data, such as materials, process steps, machines, experiments, documents and pictures. The PDES also provides a way to relate entities belonging to the same or similar context and to explore the resulting information.
In the assembly phase from process steps to process flows, a PDES helps to easily build, store, print, and transfer new process flows. By providing access to previously assembled process flows the designer is able to use those as building blocks or modules in the newly developed flow. The usage of standard building blocks can dramatically reduce the design time and the probability of errors.
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# check process flows using these rules. This rule check verifies the principle manufacturability of a newly designed manufacturing flow.
The processing rule check gives no indication about the functionality or even the structure of the produced good or device. In the area of [[semiconductor device fabrication]], the techniques of [[semiconductor process simulation]] / [[Technology CAD|TCAD]] can provide an idea about the produced structures. To support this
After virtual verification the device is produced in an experimental fabrication environment. A PDES allows a transfer of the process flow to the fabrication environment (for example in semiconductor: [[Fab (semiconductors)|FAB]]). This can be done by simply printing out a runcard for the operator or by interfacing to the [[Manufacturing Execution Systems]] (MES) of the facility. On the other hand, a PDES is able to manage and document last minute changes to the flow like parameter adjustments during the fabrication.
During and after processing a lot of measurements are taken. The results of these measurements are often produced in the form of files such as images or simple text files containing rows and columns of data. The PDES is able to manage these files, to link related results together, and to manage different versions of certain files, for example reports. Paired with flexible text, and graphical retrieval and search methods, a PDES provides the mechanism to view and assess the accumulated data, information and knowledge from different perspectives. It provides insight into both the information aspects as well as the time aspects of previous developments.
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== References ==
*D. Ortloff, J. Popp, T. Schmidt, and R. Brück. Process Development Support Environment: A tool SUITE TO ENGINEER MANUFACTURING SEQUENCES
*T. Schmidt, K. Hahn, T. Binder, J. Popp, A. Wagener, and R. Brück. OPTIMIZATION OF MEMS FABRICATION PROCESS DESIGN BY VIRTUAL EXPERIMENTS. In Proceedings of SPIE: Micro- and Nanotechnology: Materials, Processes, Packaging, and Systems III, Adelaide, volume 6415, 2006. Smart Materials, Nano and Micro-Smart Systems 2006.
*NEXUS news. [http://www.mstnews.de/downloads/pdf/news-0208.pdf "Successful Outcome from the PROMENADE Project..."], ''mst|news'', April 2008.
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== External links ==
* [http://www.siliconfareast.com/manufacturing.HTM Semiconductor Manufacturing]
* [
[[Category:Knowledge management]]
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