click to visit home page
leading the way to the new storage frontier .....
SSD SoCs controllers
SSD controllers ..
image shows megabyte waving the winners trophy - there are over 200 SSD oems - which ones matter? - click to read article
top SSD companies ..
adaptive R/W and DSP IP in flash controllers
adaptive R/W IP ..
Flash Memory
flash & nvm ....
SSDs over 163  current & past oems profiled
SSD news ..


BeSang , founded in 2003 and with headquarters in Beaverton, OR, is a pioneer in the design, development, and delivery of unsurpassed TRUE 3-dimensional (3D) integrated circuit (IC) solutions.

BeSang's cutting edge 3D IC technologies enable stacking multiple device layers in a vertical direction and provide ultra low-cost and high-performance solutions to CPU, DSP, ASIC, FPGA, SoC, DRAM, SRMA, Flash, Image Sensor and Solid State Drive applications.
see also:- BeSang's technology page
Who's who in SSD? - BeSang

by Zsolt Kerekes, editor - - September 26, 2016

I admit that I completely missed the first 13 years of BeSang's presence in areas which may have intersected with the SSD market.

But I woke up and started paying attention in June 2016 - when I saw the best competitive analysis which I had upto that time about Intel / Micron's (at that time fluff-ware) 3DXPoint technology.

Aha! - I thoughtt - this CEO really seems to understand the semiconductor technologies in this market.

BeSang is a company which is worthy of more industry attention.

See also:- SSD market history

SSD ad - click for more info
what were the big SSD ideas which emerged in 2016?
"Storage Class Memory

As storage class memories are emerging, the memory hierarchy will be changed. NOR-based NVDIMMs, such as 3D Super-NOR and 3D XPoint, will replace DRAM and SSD at the same time.

Also, software-based NVDIMM-P, such as HybriDIMM, will come to the storage class memory market. Storage class memories mingles fast-but-expensive volatile, and slow-but-inexpensive non-volatile memories together. As a result, it will significantly boost system performance at low cost and create huge market opportunities."

Sang-Yun Lee, President & CEO - BeSang
when you can make a terabyte of virtual DRAM from a terabyte flash SSD using the heat pump of software - what should you do?
should we set higher expectations for memory systems?
placing 3D XPoint claims in context
Editor:- June 23, 2016 - If you've been trying to renconcile Intel / Micron competitive claims about 3D XPoint compared to flash and DRAM - it has been problematic due to absence of adequate hard data.

A new video - 3D XPoint, reality, opportunity, competition - by Sang Yung Lee, President & CEO - BeSang - places the known features of 3D XPoint into context, and looks at the limitations, manufacturing costs and best likely application roles for this new technology.

If you're interested in analyzing the impact of DIMM wars in your future plans - then the 12 minutes you spend listening to the narrative in this video will remove any mysteries of how the IM technologies could fit into the pattern of adoption and just as important - you'll see where 3D XPoint is unlikely to be the best fit technology too. the video

storage search banner

BeSang has been gaining more attention for its ideas about the best way to design and make high density next generation nand flash. In Q4 2017 BeSang was the 26th most popular company followed up by readers of
Top SSD Companies in Q4 2017
BeSang says 3D Super-DRAM could fix memory industry's money pit
SSD news - March 2017
SSD ad - click for more info
SCM - competing semiconductor approaches compared
Editor:- January 10, 2017 - In a new video Storage Class Memory - Reality, Opportunity, and Competition - Sang-Yun Lee, CEO - BeSang presents his analysis of the technology SWOT state of the market.

SCM video

Among other things Sang-Yun Lee (whose company offers 3D super-NOR as an alternative competing SSD and SCM technology platform) notes the weaknesses of some competing technologies:-
  • when looking at cross-point structure memories (such as Micron's 3DXpoint) - "is the worst nightmare for manufacturing"
  • when looking at NVDIMM-P (such as Diablo's Memory 1) - "performance is not predictable at all times"
Editor's comments:- In some significant areas I disagree with the finality of some of of Mr. Lee's conclusions.

For example I think that changes in system aware software can improve the usability of nand flash as DRAM. This is because I think the applications experience leans more heavily towards the elastic behavior of the entire "virtual" memory system as a working model rather than transmitting every bump in the road from the native physical memory (even when that memory is DRAM) for reasons discussed here.

Also when it comes to concern about the endurance of nand flash when used in DRAM emulation - I am satisfied that due to the variability of DRAM data churn (which follows a time and fractional data change pattern in real applications - rather than all DRAM contents being equally turbulent) and provided that the emulated data capacity is big enough (and supported by a suitably sized RAM cache ratio) then I think that flash endurance is good enough for reasons discussed here.

On the other hand - due to the fact that SCM applications currently require a great deal of characterization and testing and may require proprietary tuning - and due to the diverse nature of risk / reward attitudes in the enterprise user base (which we already see when it comes to memory systems) I expect fragmentation will occur in SCM adoption.

On the one hand there will be those who are satisfied with the risks posed by software enhanced DRAM emulation (because they have the technical resources to assess the risks and have applications which match the software supported by early SCM solutions).

And on the other hand there will be many who prefer to wait to get solutions which rely more on native hardware and rely less on the magic promised by new software data architectures.

When memory technologies change then systems designers have to invest learning time to understand the implications of competing offers. And whatever your background Sang-Yun Lee's presentation will get you thinking about many important comparative technology issues ...see the video

See also:- the SSD heresies
1.0" SSDs 1.8" SSDs 2.5" SSDs 3.5" SSDs rackmount SSDs PCIe SSDs SATA SSDs
SSDs all flash SSDs hybrid drives flash memory RAM SSDs SAS SSDs Fibre-Channel SSDs is published by ACSL