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Silicon Motion

Silicon Motion is an innovative technology 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 tuners, CDMA RF ICs, and electronic toll collection RF ICs. Our multimedia SoCs business is composed of products that support MP3 players, PC cameras, and embedded graphics applications.

see also:- Silicon Motion - editor mentions on, Silicon Motion's SSD controllers page

editor's comments:- August 2013 - Silicon Motion is a supplier of controllers for 3 bit per cell flash / TLC and the company also offers products in the SSD on a chip market.

Silicon Motion's recent SSD controllers have aspects of adaptive R/W DSP technology. It appears in their case they use LDPC with variable strength codes in combination with other techniques.
selected Silicon Motion mentions from SSD Market History

Iin June 2008 - Silicon Motion announced a new family of flash SSD controllers which enable oems to mix and match MLC and SLC chips in the same drive.

The controller can analyze the incoming files from the host and intelligently move frequently accessed data to SLC NAND and non-frequently accessed data to MLC NAND. With this innovative hybrid architecture, the SSD system cost is significantly reduced to a level comparable to a pure MLC-based SSD, while endurance is significantly enhanced and comparable to a pure SLC-based SSD.

In April 2010 - in its financial report Silicon Motion's President and CEO, Wallace Kou said - " The NAND flash industry has been increasing the output of 3 bits per cell MLC because this type of technology is a capital efficient way for NAND flash manufacturers to increase capacity without significant capital expenditure. These new 3 bits per cell MLC NAND flash are very difficult to manage well and requires significant advanced controller technologies. Our clear leadership in 3 bits per cell controller technology validates our strategy of investing in cutting edge R&D in order to bring new products to market ahead of our competitors. ...Our SSD controller shipment growth (in the past quarter) was flat sequentially, but grew almost 300% compared to a year ago, and revenue from these products continues to account for almost 10% of our overall corporate revenue."

In April 2015 - Silicon Motion said it would acquire Shannon Systems for a total purchase price of $57.5 million. (For more like this see a list of SSD company acquisitions from 2000 to 2016.)
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Silicon Motion's new mobile devices TLC SSD controller
Editor:- February 21, 2013 - Silicon Motion announced imminent sampling of a new SSD controller - for consumer handheld products.

The SM2703 is a single-channel, SD 3.0 UHS-I (Ultra High Speed Phase I) card controller with superior support for the vast majority of NAND flash, including 2y-nm, 1x-nm and 1y-nm TLC and MLC which delivers up to 95MB/s and enables full HD video recording capability by digital cameras, smartphones and other mobile devices on both Class 4 and Class 6 SD flash memory cards using cost-effective TLC NAND flash.

"We've already had tremendous success in the UHS-I market since we introduced our first UHS-I controller 2 years ago - which was used by most of the world's leading flash card brands" said Wallace Kou, President and CEO of Silicon Motion.

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Silicon Motion has SD 5.1 flash controller
Editor:- November 21, 2016 - Silicon Motion today announced the "world's first merchant SD 5.1 controller solution."

"Android Smartphone shipments accounted for more than 85% of the worldwide market share, and 70% to 80% of these phones have microSD slots," said Nelson Duann, Senior VP of Product Marketing at Silicon Motion, "With the SM2703 controller (2000 / 650 random R/W IOPS on a single TLC die) now supporting SD 5.1, our partners can rapidly bring to market a new generation of SD cards to enable a much better user experience and extend the usability of the Android smartphones."
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Silicon Motion's FerriSSDs
Editor:- March 23, 2014 - FerriSSD (pdf) from Silicon Motion - is a PATA SSD on a chip (BGA) which I learned about from Jonathan Bruce - who suggested it for my article - Inanimate Power, Speed and Strength Metaphors in SSD brands - because - he said - the "Ferri" prefix means "strong or durable".

...Later:- March 31, 2014 - in the same product family - Silicon Motion is now sampling a high performance 6Gb/s SATA FerriSSD - the SM659 (8GB to 64GB capacity, with regular cache, 80,000 random IOPs, and 30K Program/Erase (P/E) cycles) - which fits into a 90-ball BGA package measuring just 16x20x2mm.

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Silicon Motion samples fast low power SATA 3 SSD controller
Editor:- August 12, 2013 - Silicon Motion today announced it has begun sampling a low power consumption, fast SATA 3 regular RAM cache SSD controller which supports MLC, TLC and SLC NAND flash from all the major NAND suppliers.

The SM2246EN supports 4 channels of NAND flash devices with up to 8 CEs per channel and can enable sequential reads upto 540MB/s and writes upto 410MB/s. Random IOPS performance is upto 80,000 read IOPS and 75,000 write IOPS. Average power consumption is 60mW. Security features include AES 128/256, TCG and Opal full-drive encryption compliance.

Editor's comments:- in a paper this week at the Flash Memory Summit - the Efficient LDPC DSP System for SSD (pdf) - Jeff Yang Principle Engineer, Silicon Motion discussed how its adaptive LPDC DSP techniques which supports variable parity lengths provides 3x better data integrity than traditional BCH.