Casio 2006 Annual Report Download - page 17

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Small Sized TFT LCD with Built-in Speaker
We have developed a TFT LCD module which incorporates a stacked piezoelectric ceramic speaker. The entire module
is a mere 3.2mm thick.
There are already numerous mobile appliances on the market that offer both visual and audio features, but the
LCD monitor and speaker are installed as separate parts in conventional mobile equipment. In such cases, during
the design process, it is necessary to install parts for attaching the speaker, and allow for acoustic space in front of
and behind the speaker. In order to create thin, compact mobile appliances, we have developed a TFT LCD with an
embedded stacked piezoelectric ceramic speaker utilizing our own thin, high-density mounting technologies. Our
product simplifi es the design process, rendering the inclusion of a separate speaker unnecessary.
This TFT LCD module is the optimal device for such products as portable multi-media players and digital cameras,
which require superior sound quality.
EWLP Consortium Established
The Embedded Wafer Level Package (EWLP) is a mounting technology that makes possible compact, thin, lightweight
system boards by embedding wafer level packages on system boards. The WLP (Wafer Level Package) method enables
packaging of the same size as the semiconductor chip. The EWLP aims to further increase the performance and reduce
the size, thickness, and weight of electronic devices. Casio has been undertaking EWLP technical development jointly
with Japanese IC board manufacturer CMK Corporation since 2002.
The EWLP Consortium was set up in April 2006 to work toward the establishment and standardization of EWLP
technology. The Consortium aims to establish EWLP as a standard industry technology that can be widely used.
Centering on fi ve leading Japanese IC board manufacturers, the Consortium’s participants include many other
major manufacturers in fi elds ranging from semiconductors through modules, consumer products, semiconductor
production equipment and materials.
EWLP technology is expected to have broad practical applications, including mobile devices such as cellular phones.
Through the establishment of the EWLP Consortium, Casio aims to make EWLP technology more widely known.
15
Annual Report 2006