Silicon Motion Technology Corporation, stylized as SiliconMotion, is an American-Taiwanese company involved in developing NAND flash controller integrated circuits (ICs) for solid-state storage devices. The company has claimed to have supplied more NAND flash controllers than any other company, over five billion from 2006 through 2016.[2] They are found in commercial, enterprise, and industrial applications ranging from SSDs, eMMCs, memory cards, and USB flash drives.[3]

Silicon Motion Technology Corporation
Native name
Huirong Technology
Company typePublic
FoundedNovember 1995; 28 years ago (November 1995)
Taiwan (global), California, United States (corporate)
Area served
Key people
  • NAND Flash Controllers
  • (SSD / eMMC / Flash Card / UFD Controllers)
  • Single-Package SSD Solutions
  • Enterprise SSD Solutions (Shannon brand)
  • Embedded Graphics
RevenueDecrease US$639 million (2023)
Decrease US$39.9 million (2023)
Decrease US$52.9 million (2023)
Total assetsIncrease US$1.01 billion (2023)
Total equityIncrease US$735 million (2023)
Number of employees
1,546 (2023)
Footnotes / references

Silicon Motion purchased Shannon Systems which added PCI Express solid-state drives for the Chinese data center market to its portfolio.[4] Controllers are marketed under the “SMI” brand, enterprise-grade SSDs under the "Shannon Systems" brand.



Silicon Motion Technology Corporation was formed as the combination of Silicon Motion, Inc., which was established in 1995 in Silicon Valley in the United States, and Feiya Technology Corporation, which was founded in 1997 in Taipei, Taiwan. At the time, mobile graphic chips were the main product of Silicon Motion and NAND controllers were the main products of Feiya Technology Corporation. In 2002, Concord Asia Capital (now known as Concord Venture Capital Group), mediated the merger of the two companies which was completed in August 2002.[5] In 2005 the combined company was renamed Silicon Motion Technology Corporation and began listing on the NASDAQ stock market under the SIMO ticker symbol.

  • November 1995: Silicon Motion was established in Silicon Valley, U.S.A.
  • April 1997: Feiya Technology Corporation was established in Taipei, Taiwan.
  • August 2002: Silicon Motion, Inc. was combined with Feiya Technology Corporation in Taiwan. The headquarters was located in Hsinchu County, Taiwan.
  • June 2003: Silicon Motion was added to the stock listings of the Taiwan Stock Exchange (TWSE).
  • March 2005: The company decided to go public in the US. Silicon Motion Technology Corporation was established in the Cayman Islands, and transferred 100% of its stocks to its branch in Taiwan. The company terminated its application for an emerging stock transaction and withdrew the issuance of its stocks.
  • April 2005: The company’s listing on the TWSE was terminated.
  • June 2005: The company was listed on the NASDAQ stock market (Nasdaq: SIMO).
  • April 2007: The company completed its acquisition of Future Communications IC, Inc. (FCI) for US$90 million.[6]
  • December 2012: The company received "2012 Best Financially Managed Company (<$500 million revenue) Award" presented by the Global Semiconductor Alliance (GSA).[7]
  • July 2015: The company completed its acquisition of Shannon Systems for US$57.5 million.[8]
  • December 2016: The company received "2016 Best Financially Managed Company (<$1 billion revenue) Award" presented by the Global Semiconductor Alliance (GSA).[9]
  • May 2019: The company announced that it has completed the sale of FCI, its Mobile Communications product line, to Dialog Semiconductor.[10]
  • May 2022: MaxLinear to acquire Silicon Motion.[11][12]
  • July 2023: MaxLinear scrapped the acquisition stating that Silicon Motion had failed to complete some of the acquisition closing conditions and suffered a "material adverse effect".[13]


SM3253L flash memory controller on a USB flash drive

Embedded storage products

  • SSD controllers
  • eMMC controllers
  • Ferroelectric storage
  • Embedded flash controllers
  • Enterprise/data center SSDs marketed under the Shannon brand

Expandable storage products

Embedded graphics products

  • Embedded GPUs
  • USB display controllers


  1. ^ "2023 Annual Report (Form 20-F)". U.S. Securities and Exchange Commission. April 30, 2024.
  2. ^ "Silicon Motion Announces Results for the Period Ended June 30, 2016. Taipei: Silicon Motion Technology Corp".
  3. ^ "GuruFocus (July 17, 2015). Investors Can Benefit From Silicon Motion's SSD Exposure".
  4. ^ "Zacks (July 6, 2015). Silicon Motion to Boost Earnings on Shannon Systems Buy".
  5. ^ "Bryan, Ho (2011). Silicon Motion Technology Corp: Taking initiative and bouncing back from rock bottom. Taipei: United Daily News Group".
  6. ^ "Silicon Motion Technology Corp.'s acquisition of FCI, Inc. (2007). Silicon Motion Announces Closing of its Acquisition of FCI, Inc.. Taipei: Silicon Motion Technology Corp".
  7. ^ "GSA Award Winners : Global Semiconductor Alliance".
  8. ^ "Silicon Motion Technology Corp.'s acquisition of Shannon Systems (2015). Silicon Motion Announces Agreement to Acquire Shannon Systems".
  9. ^ "Global Semiconductor Alliance Announces 2016 Award Recipients (Dec 9, 2016) : Global Semiconductor Alliance".
  10. ^ "Silicon Motion Completes Sale of FCI to Dialog Semiconductor (May 31, 2019) : Silicon Motion".
  11. ^ "MaxLinear to Acquire Silicon Motion (May 5, 2022) : MaxLinear Press Releases".
  12. ^ Anton Shilov (2022-05-05). "MaxLinear Acquires SSD Developer Silicon Motion for $3.8 Billion". Tom's Hardware. Retrieved 2022-05-06.
  13. ^ King, Ian (2023-07-26). "Chipmaker MaxLinear Terminates Acquisition of Taiwan's Silicon Motion". Bloomberg News.