Packaging
is sometimes an afterthought in the semiconductor industry,
but never at Texas Instruments. At TI, we consider the package
to be an integral part of the IC product. We work throughout
the silicon development process to validate packaging before
any product is released.
In our history of packaging R&D innovation, TI was among
the first to develop software models for the mechanical, thermal
and electrical characteristics of packages. Today, we extend
that leadership to new areas, drawing on data about the metal,
dielectrics, film depositions, and other thin-film materials
on the chip to more accurately model the interface between
the package and the chip. This information allows us to develop
packages that provide the full performance entitlement of
the silicon to our customers, reduce soft errors related to
packaging, and last for the life of the system.
Performance is one part of the packaging story, but just
as important is the availability of inexpensive, space saving
packages. TI is among the leaders in the industry in providing
fine-pitch package solutions for the high-performance DSPs
and ASICs used in wireless and other portable systems. We
offer some of the most densely connected ball-grid array (BGA)
packages available today, featuring high volume production
of state-of-the-art 0.5-mm ball pitch and development of 0.4mm
pitch products.
Another key TI strategy is the development of a comprehensive
technology to bring flip-chip packaging to all our high-performance
DSPs and ASICs. When this technology has been fully developed,
TI will be among the few companies able to offer its products
for high-performance flip-chip mounting in packages that are
affordable for mass-market systems.
TI has also developed the capability to stack devices by
running vias to connect piggybacked memory chips. For wireless
customers this capability gives them the freedom to buy commodity
memory from other sources. Adding this capability to TI's
embedded memory options also gives our customers maximum flexibility
in space-saving solutions for their system development.
Other packaging innovations and areas we are working on include
the introduction of quad flat no-head packages (QFNs), wafer-scale
packaging, the development of low-stress polymer compounds,
and the adaptation of more resilient materials to withstand
drop tests and other types of mechanical and handling punishment
inflicted on mobile systems. With an eye to the environment,
TI has developed no-lead (non-Pb) packages in all our lead
frame based package families. We are also working to bring
out no-lead BGAs throughout the whole range of our offerings.
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