Silicon Motion Announces Flash Controllers Supporting Micron 34 nm MLC Flash

TAIPEI, Taiwan, June 30, 2009 (GLOBE NEWSWIRE) -- Silicon Motion Technology
Corporation (Nasdaq:SIMO) (the "Company"), a leading fabless semiconductor
company that designs, develops and markets semiconductor solutions for
multimedia consumer electronics, today announced that Micron Technology, Inc.
has validated the Company's latest flash controllers for use with Micron's
34-nanometer multi-level cell (MLC) flash product family. The products include
its new 16 gigabit (Gb) and 32Gb parts announced today. The validated Silicon
Motion products include SM2682/SM2682LT SD controllers, SM2232/SM2234 CF
controllers, SM2235/SM2242 SSD controllers, and SM3251/SM3252 USB flash drive
(UFD) controllers, all of which are in mass production.

"Micron is a leader in 3x nm flash technology and we are excited that Silicon
Motion has passed through Micron's validation process," said Wallace Kou,
President and CEO of Silicon Motion. "With this validation, we can offer the
most advanced SD, microSD, CF, SSD and UFD controllers to support high capacity
products using leading edge Micron MLC flash memory. Our controllers will allow
customers to benefit from lower cost, next generation, 16Gb and 32Gb MLC 34nm
NAND flash for a variety of device formats and platforms."

"Micron's new 16Gb and 32Gb MLC NAND delivers a compelling storage solution for
today's consumer electronic and mobile products, offering unparalleled capacity
and performance," said Brian Shirley, vice president of Micron's memory group.
"Micron is pleased to have worked closely with Silicon Motion through the
validation phase to ensure our mutual customers have the opportunity to
design-in the latest in NAND and controller technologies."

"We believe that leading edge flash devices can accelerate the adoption of new
flash applications, such as SSDs with our controllers," added Wallace Kou. "As
the leader in the flash controller market, Silicon Motion will continue to work
closely with all NAND flash manufacturers to ensure that our customers have
access to the most advanced controllers that capitalize on next-generation
technologies."

About Micron:

Micron Technology, Inc. is one of the world's leading providers of advanced
semiconductor solutions. Through its worldwide operations, Micron manufactures
and markets DRAMs, NAND flash memory, CMOS image sensors, other semiconductor
components, and memory modules for use in leading-edge computing, consumer,
networking, and mobile products. Micron's common stock is traded on the New York
Stock Exchange (NYSE) under the MU symbol. To learn more about Micron
Technology, Inc., visit www.micron.com.

About Silicon Motion:

We are a fabless semiconductor company that designs, develops and markets high
performance, low-power semiconductor solutions for the multimedia consumer
electronics market. We have three major product lines: mobile storage, mobile
communications, and multimedia SoCs. Our mobile storage business is composed of
microcontrollers used in NAND flash memory storage products such as flash memory
cards, USB flash drives, SSDs, embedded flash applications, and card readers.
Our mobile communications business is composed of mobile TV IC solutions, CDMA
RF ICs, and electronic toll collection RF ICs. Our multimedia SoCs business is
composed of products that support portable multimedia players, DAB systems, PC
cameras, and embedded graphics applications.

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CONTACT: Silicon Motion Technology Corporation
Investor Contact:
Jason Tsai, Director of IR and Strategy
+1 408 519 7259
Fax: +1 408 519 7101
jtsai@siliconmotion.com
Selina Hsieh, Investor Relations
+886 3 552 6888 x2311
Fax: +886 3 560 0336
ir@siliconmotion.com
Media Contact:
Sara Hsu, Project Manager
+886 2 2219 6688 x3509
Fax: +886 2 2219 6868
sara.hsu@siliconmotion.com