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Materials for Electronic Products

Electronics product design and life cycle



Design is a set of specifications for manufacturing






Fabrication complexity increase the importance of product design


Semiconductor complexity continues to increase

Complexity of electronic devices continues to increase

ASIC cross section
Image source: International Roadmap for Semiconductors. ITRS press conference, Dec 2004, 25.




Sources of new designs






Purposes of design prototyping






Types of design prototyping






Design tolerance is the difference between upper and lower limits of a dimension






There are different types of tolerance levels






Why do we need tolerances for manufacturing?




Does tolerance affect cost of product?




Is it better to have smaller tolerances?




Design principle: Maintain independence of functional requirements


Bose music system
Image copyright Bose Inc.




Design principle: Minimize information content of the design


Rotary telephone




Design principle: Delay product customization steps


Dell printer
Image copyright Dell Computers




Design principle: Everything should be made as simple as possible, but not simpler


Quote attributed to Albert Einstein




Design quality is fitness for purpose


Segway transport
Image copyright Segway Inc.




Conflicts about purpose is often the primary cause of failed products!




Design quality is fitness for standards


CRT monitor
Image copyright Princeton Digital Corp.




Measurement of quality is dependent on the purpose


LCD monitor
Image copyright Acer Inc.




Design is fitness for market



Betamax advertisement
Image copyright Sony Corp.




Design is the source of quality


Silicon wafer
Image copyright Dalsa Corp.




Product design must factor an increasing number of requirements (concurrent engineering)






Design and quality are affected by many factors






Design for assembly (DFA)






Methods to manage the quality of manufacturing


Quality control

Quality indicators

Sampling methods




Yield is quotient of good outputs to total outputs






The cost of quality


Cost of quality
Source: Gallien, J. (2002). Lecture for 15.760B course. MIT.




Product disposal choices


Environmental impact




Design for the environment


Design for the environment requires consideration of the complete product life cycle:
  1. conception and design
  2. prototyping
  3. manufacturing
  4. sales
  5. consumption
  6. end of use

Design for the environment is affected by changes and feedback from society about:

Modern view of engineering