ⓘ Process development execution systems are software systems used to guide the development of high-tech manufacturing technologies like semiconductor manufacturin ..

                                     

ⓘ Process development execution system

Process development execution systems are software systems 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 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 but tailor them for R&D rather than for production. PDES integrate people, data, information, knowledge and business processes.

                                     

1. Benefits

Documented benefits of process development execution systems include:

  • Reduced prototyping costs
  • A framework for product optimization
  • Improved quality / more robust manufacturing process
  • Reduced amounts of experimentation
  • Savings through the complete integration of engineering workflows
  • Reduced waste
  • Savings through the re-use of original data, information and knowledge
  • Reduced time to market
  • Ability to provide collaboration partners with access to a centralized development record
                                     

2. Relationships with other level 3 / level 4 systems

A process development execution system PDES is a system used by companies to perform development activities for high-tech manufacturing processes. Software systems of this kind leverage diverse concepts from other software categories like PLM, manufacturing execution system MES, ECM but focus on tools to speed up the technology development rather than the production.

A PDES is similar to a manufacturing execution systems MES in several ways. The key distinguishing factor of a PDES is that it is tailored for steering the development of a manufacturing process, while MES is tailored for executing the volume production using the developed process. Therefore, the toolset and focus of a PDES is on lower volume but higher flexibility and experimentation freedom. The tools of an MES are more focused on less variance, higher volumes, tighter control and logistics. Both types of application software increase traceability, productivity, and quality of the delivered result. For PDESs quality refers to the capability of the process to perform without failure under a wide range of conditions, i.e. the robustness of the developed manufacturing process. For MESs quality refers to the quality of the manufactured good/commodity. Additionally both software types share functions including equipment tracking, product genealogy, labour and item tracking, costing, electronic signature capture, defect and resolution monitoring, executive dashboards, and other various reporting solutions.

In contrast to PLM systems, PDES typically address the collaboration and innovation challenges with a bottom-up approach. They start-out with the details of manufacturing technologies like PPLM, a single manufacturing step with all its physical aware parameterization and integrating steps into sequences, into devices, into systems, etc.

Other rather similar software categories are laboratory information management systems LIMS and laboratory information system LIS. PDESs offer a wider set of functionalities e.g. virtual manufacturing techniques, while they are typically not integrated with the equipment in the laboratory.

PDESs have many parts and can be deployed on various scales – from simple Work in Progress tracking, to a complex solution integrated throughout an enterprise development infrastructure. The latter connects with other enterprise systems like enterprise resource and planning systems ERPs, manufacturing execution systems MESs, product lifecycle management PLM, supervisory, control and data acquisition SCADA solutions and scheduling and planning systems both long-term and short-term tactical.

                                     

3. 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 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.

A PDES demonstrates its real benefits in the verification phase. Knowledge for example in the semiconductor device fabrication – clean before deposition; After polymer spin-on no temperature higher than 100 °C until resist is removed is provided in a format that can be interpreted by a computer as rules. If a domain expert enters the rules for his/her process steps, all engineers can later use these rules to check newly developed process flows, even if the domain expert is not available. For a PDES, this means it has to be able to

  • connect rules with Boolean terms and, or, not and
  • manage rules
  • 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 / TCAD can provide an idea about the produced structures. To support this ’virtual fabrication’, a PDES is able to manage simulation models for process steps. Usually the simulation results are seen as standalone data. To rectify this situation PDESs are able to manage the resulting files in combination with the process flow. This enables the engineer to easily compare the expected results with the simulated outcome. The knowledge gained from the comparison can again be used to improve the simulation model.

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. 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.

Development activities within high tech industries are an increasingly collaborative effort. This leads to the need to exchange information between the partners or to transfer process intellectual property from a vendor to a customer. PDESs support this transfer while being selective to protect the IPR of the company.



                                     
  • relationship management CRM human resource management HRM process development execution system PDES From the MES point of view possible information flows
  • its activity. Depending on the operating system OS a process may be made up of multiple threads of execution that execute instructions concurrently.
  • Execution in computer and software engineering is the process by which a computer or virtual machine executes the instructions of a computer program.
  • engineering, out - of - order execution or more formally dynamic execution is a paradigm used in most high - performance central processing units to make use of
  • following definition: Business process management BPM is a discipline involving any combination of modeling, automation, execution control, measurement and
  • Test - driven development TDD is a software development process that relies on the repetition of a very short development cycle: requirements are turned
  • aspect - oriented software development AOSD is a software development technology that seeks new modularizations of software systems in order to isolate secondary
  • System - on - Chip. MPSoCs usually targeted for embedded applications. It is used by platforms that contain multiple, usually heterogeneous, processing elements
  • Intel Trusted Execution Technology Intel TXT, formerly known as LaGrande Technology is a computer hardware technology whose primary goals are: Attestation
  • The Web Services Business Process Execution Language WS - BPEL commonly known as BPEL Business Process Execution Language is an OASIS standard executable