Flexible quality assurance

How flexible is the contractor with regard to formulation, manufacturing, quality assurance, labeling, and packaging Are turn key services such as development, control, and distribution available ... 

This standard specifies a procedure for determining the dynamic cushioning performance of cellular rubber materials and rigid and flexible plastics by measuring the peak deceleration of a mass when it is dropped on a test piece. The test is intended primarily for quality assurance. However, since this type of test is also used to obtain design data notes are given in Annex A to assist in this objective. The method is applicable solely to packaging materials. 

Transparency Criteria. QSARs should be accompanied with full access to the data sets as well as the methods and quality assurance used to generate the data. The apparent sophistication, user-friendliness and flexibility of many publicly available computer-based models may at times convey a false sense of accuracy and a broader range of applicability than the underlying databases and algorithms would justify. Even well validated, technically robust assessment models can be subject to misuse. 

Firstly, field studies may involve similar activities at separate locations but at similar times. The exact timing of inspectional activities may furthermore depend upon local weather or other conditions, which would necessitate flexibility in the Quality Assurance procedures. Especially when such a study would involve not only multiple sites, but narrow crop windows and field sites without Quality Assurance units, this would severely impact upon the possibilities of a Quality Assurance unit. 

Schmitt R, Pavim A (2009) Flexible optical metrology strategies for the control and quality assurance of small series production. Proc SPIE 7389(Optical measurement systems for industrial inspection VI) 738902. doi 10.1117/12.827589 Schmitt R, Mallmann G, Peterka P (2011) Development of a FD-OCT for the inline process metrology in laser structuring systems. Proc SPIE 8082(Optical measurement systems for industrial inspection Vn) 808228. doi 10.1117/12.889365... 

For example, a performance property, e.g.. flexibility (expressed by Y-oung s modulus), taken here as the deformation behaviour at small forces, can be deduced from the tensile test. At the same time, test quanities determined by the tensile test, such as yield stress and yield strain as well as maximum tensile force (strength) and strain at break serve as parameters for quality assurance and materials identification. 

The benefits of PAT span development, commercialization, and supply. PAT integrated into the HME platform early in process development has facilitated a model robust to process variations and thus will yield process flexibility post-drug product regulatory approval. In multiple HME drug product applications, PAT monitoring has identified and facilitated the correction of process faults while yielding quality assurance via waste gate switch feed-forward control. 

BASIC CONCEPTS IN FLEXIBLE CIRCUIT QUALITY ASSURANCE ... 

The basic concept of quality assurance for flexible circuits is the same as that for rigid boards, in the sense that any critical defect must be eliminated before shipping. This includes failures due to opens and shorts dimensional degradation of pad arrays, serious defects on conductors, substrates, coverlay, and so on. These defects need to be inspected for each circuit, whether it is flexible or rigid. Technically, however, there are several differences in quality assmance for flexible circuits because of their additional functions, such as dynamic flexing capability. 

The basic quality assurance concept for high-density flexible circuits is the same as for other circuit types. However, a difference for high-density flexible circuits is the acceptable defect size, which is one order smaller than that for traditional flexible circuits, necessitating higher inspection capabilities. Furthermore, new high-density flexible circuits contain additional structiues such as flying leads and microbump arrays that require additional inspection capabilities for reliable termination. Exact 3-D accuracy and uniform surface conditions are required. Dimensional allowances are smaller than 0.3 percent, and sometimes 2-ftm accuracy is required. 

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