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