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There are growing numbers of companies developing and manufacturing handheld products. Such products are possessing increasing numbers of functions. For example, small sized devices with multiple functions including communication, photo taking, MP3 playback, GPS, lighting, and projection. Such device with multiple daily functions has won consumers over and has attracted many more. With increased demands from consumers the styles and functions of handheld devices have also become diversified with more and more innovative designs. Of course, other than attractive styles and functions consumers are also interested in high quality products.
For a product to standout from the myriad of makers and brands it is important to focus on research and development as well as comprehensive knowledge on components and features of materials. In order to raise reliability of products without additional cost it is important to make innovations and breakthroughs on design, technology, and choice of components and materials. In addition, reliability testing specifications and standards are also vital. Accurate quality and reliability tests can only be achieved through good testing specifications and standards.
The present study will begin with reliability theory followed by an introduction on the internal structure of GSM/GPRS phones. Finally, environmental reliability, structural reliability, and functional reliability of handheld devices were investigated and discussed through testing category examples, and levels of reliability were analyzed.
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