Handling Technical Cleanliness in Electronic ProductionAuthors: Michael Kövi, P.E. and Helmut Schweigart, Ph.D.
Date Published: 9/22/2019 Conference: SMTA International
Even disturbances in lighting systems are subject to lose customer reputation and thus business share in a highly competitive market. The manufacturability of a component as well as its performance have to be considered in this context, as it is the case when defining dimensional tolerances. Production processes, production environment and final packaging additionally influence component cleanliness. This often calls for agreements concerning compliance with limiting values between customer and supplier or product development and production. Particularly relevant in instances where limiting values are exceeded without necessarily impairing performance. A careful review is necessary to ensure that efforts complying with these values do not outweigh the potential risk, thereby avoiding excessive cleanliness requirements.
Therefore, this paper will give an overview about the state of the art concerning handling technical cleanliness. It will provide details on latest developments in standardization, indications for an adopted approach on technical cleanliness, monitoring and validation procedures and eventually a brief introduction to risk assessment of particle contamination.
Technical cleanliness, particles, contamination, risk assessment
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