+1 862 207 3288 Your company has started to manufacture an electronic product but you are concerned about product yield. The problem has arisen because of ëtolerance stackingí. You now realise that you should have carried out a tolerance analysis and included tolerance design in the overall design process.
For simple circuits such as potential dividers a yield analysis can be carried out using simple two dimensional graphical analyses. For more complex circuits it may be necessary to use software tools to implement analysis including:
o Vertex Analysis
o Regionalisation
o Monte Carlo Analysis
You decide to find out more about these techniques to improve your yield
Guidance notes
Remember you do not necessarily have to solve the problem described. You do, however, need to understand and be able to explain how you would approach the problem.
Learning Outcomes
Following this PBL cycle you should be able to:
o Explain the concept of product yield
o Discuss how product yield may be affected by component tolerance specification.
o Discuss the use of tolerance analysis in the context of electronic design for manufacture.
o Carry out a simple (graphical) yield analysis on a potential divider circuit given resistor values and tolerances together with input and output voltage range specifications.
Resources
Internet
http://www.edn.com/article/CA408380.html
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